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trunk/esys2/escript/src/Data/Data.h revision 97 by jgs, Tue Dec 14 05:39:33 2004 UTC trunk/escript/src/Data.h revision 2716 by jfenwick, Tue Oct 13 04:58:08 2009 UTC
# Line 1  Line 1 
 // $Id$  
 /*=============================================================================  
1    
2   ******************************************************************************  /*******************************************************
3   *                                                                            *  *
4   *       COPYRIGHT ACcESS 2004 -  All Rights Reserved                         *  * Copyright (c) 2003-2009 by University of Queensland
5   *                                                                            *  * Earth Systems Science Computational Center (ESSCC)
6   * This software is the property of ACcESS.  No part of this code             *  * http://www.uq.edu.au/esscc
7   * may be copied in any form or by any means without the expressed written    *  *
8   * consent of ACcESS.  Copying, use or modification of this software          *  * Primary Business: Queensland, Australia
9   * by any unauthorised person is illegal unless that                          *  * Licensed under the Open Software License version 3.0
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11   *                                                                            *  *
12   ******************************************************************************  *******************************************************/
13    
14  ******************************************************************************/  
15    /** \file Data.h */
16    
17  #ifndef DATA_H  #ifndef DATA_H
18  #define DATA_H  #define DATA_H
19    #include "system_dep.h"
20    
21    #include "DataTypes.h"
22    #include "DataAbstract.h"
23    #include "DataAlgorithm.h"
24    #include "FunctionSpace.h"
25    #include "BinaryOp.h"
26    #include "UnaryOp.h"
27    #include "DataException.h"
28    
 #include "escript/Data/DataAbstract.h"  
 #include "escript/Data/DataTagged.h"  
 #include "escript/Data/FunctionSpace.h"  
 #include "escript/Data/BinaryOp.h"  
 #include "escript/Data/UnaryOp.h"  
29    
30  extern "C" {  extern "C" {
31  #include "escript/Data/DataC.h"  #include "DataC.h"
32    //#include <omp.h>
33  }  }
34    
35  #include <iostream>  #include "esysmpi.h"
36  #include <string>  #include <string>
 #include <memory>  
37  #include <algorithm>  #include <algorithm>
38    #include <sstream>
39    
40  #include <boost/shared_ptr.hpp>  #include <boost/shared_ptr.hpp>
41  #include <boost/python/object.hpp>  #include <boost/python/object.hpp>
 #include <boost/python/list.hpp>  
42  #include <boost/python/tuple.hpp>  #include <boost/python/tuple.hpp>
 #include <boost/python/numeric.hpp>  
43    
44  /**  #include "BufferGroup.h"
    \brief  
    Data is essentially a factory class which creates the appropriate Data  
    object for the given construction arguments. It retains control over  
    the object created for the lifetime of the object.  
    The type of Data object referred to may change during the lifetime of  
    the Data object.  
   
    Description:  
    Data is essentially a factory class which creates the appropriate Data  
    object for the given construction arguments. It retains control over  
    the object created for the lifetime of the object.  
    The type of Data object referred to may change during the lifetime of  
    the Data object.  
 */  
45    
46  namespace escript {  namespace escript {
47    
48  //  //
49  // Forward declaration for various implimentations of Data.  // Forward declaration for various implementations of Data.
 class DataEmpty;  
50  class DataConstant;  class DataConstant;
51  class DataTagged;  class DataTagged;
52  class DataExpanded;  class DataExpanded;
53    class DataLazy;
54    
55    /**
56       \brief
57       Data represents a collection of datapoints.
58    
59       Description:
60       Internally, the datapoints are actually stored by a DataAbstract object.
61       The specific instance of DataAbstract used may vary over the lifetime
62       of the Data object.
63       Some methods on this class return references (eg getShape()).
64       These references should not be used after an operation which changes the underlying DataAbstract object.
65       Doing so will lead to invalid memory access.
66       This should not affect any methods exposed via boost::python.
67    */
68  class Data {  class Data {
69    
70    public:    public:
71    
72      // These typedefs allow function names to be cast to pointers
73      // to functions of the appropriate type when calling unaryOp etc.
74    typedef double (*UnaryDFunPtr)(double);    typedef double (*UnaryDFunPtr)(double);
75    typedef double (*BinaryDFunPtr)(double,double);    typedef double (*BinaryDFunPtr)(double,double);
76    
77    
78    /**    /**
79       Constructors.       Constructors.
80    */    */
# Line 80  class Data { Line 84  class Data {
84       Default constructor.       Default constructor.
85       Creates a DataEmpty object.       Creates a DataEmpty object.
86    */    */
87      ESCRIPT_DLL_API
88    Data();    Data();
89    
90    /**    /**
# Line 87  class Data { Line 92  class Data {
92       Copy constructor.       Copy constructor.
93       WARNING: Only performs a shallow copy.       WARNING: Only performs a shallow copy.
94    */    */
95      ESCRIPT_DLL_API
96    Data(const Data& inData);    Data(const Data& inData);
97    
98    /**    /**
# Line 95  class Data { Line 101  class Data {
101       function space of inData the inData are tried to be interpolated to what,       function space of inData the inData are tried to be interpolated to what,
102       otherwise a shallow copy of inData is returned.       otherwise a shallow copy of inData is returned.
103    */    */
104      ESCRIPT_DLL_API
105    Data(const Data& inData,    Data(const Data& inData,
106         const FunctionSpace& what);         const FunctionSpace& what);
107    
108    /**    /**
109       \brief      \brief Copy Data from an existing vector
110       Constructor which copies data from a DataArrayView.    */
111    
112       \param value - Input - Data value for a single point.    ESCRIPT_DLL_API
113       \param what - Input - A description of what this data represents.    Data(const DataTypes::ValueType& value,
114       \param expanded - Input - Flag, if true fill the entire container with           const DataTypes::ShapeType& shape,
115                         the value. Otherwise a more efficient storage                   const FunctionSpace& what=FunctionSpace(),
116                         mechanism will be used.                   bool expanded=false);
   */  
   Data(const DataArrayView& value,  
        const FunctionSpace& what=FunctionSpace(),  
        bool expanded=false);  
117    
118    /**    /**
119       \brief       \brief
120       Constructor which creates a Data from a DataArrayView shape.       Constructor which creates a Data with points having the specified shape.
121    
122       \param value - Input - Single value applied to all Data.       \param value - Input - Single value applied to all Data.
123       \param dataPointShape - Input - The shape of each data point.       \param dataPointShape - Input - The shape of each data point.
# Line 123  class Data { Line 126  class Data {
126                         the given value. Otherwise a more efficient storage                         the given value. Otherwise a more efficient storage
127                         mechanism will be used.                         mechanism will be used.
128    */    */
129      ESCRIPT_DLL_API
130    Data(double value,    Data(double value,
131         const DataArrayView::ShapeType& dataPointShape=DataArrayView::ShapeType(),         const DataTypes::ShapeType& dataPointShape=DataTypes::ShapeType(),
132         const FunctionSpace& what=FunctionSpace(),         const FunctionSpace& what=FunctionSpace(),
133         bool expanded=false);         bool expanded=false);
134    
# Line 135  class Data { Line 139  class Data {
139       \param inData - Input - Input Data object.       \param inData - Input - Input Data object.
140       \param region - Input - Region to copy.       \param region - Input - Region to copy.
141    */    */
142      ESCRIPT_DLL_API
143    Data(const Data& inData,    Data(const Data& inData,
144         const DataArrayView::RegionType& region);         const DataTypes::RegionType& region);
145    
146    /**    /**
147       \brief       \brief
148       Constructor which will create Tagged data if expanded is false.       Constructor which copies data from any object that can be treated like a python array/sequence.
      No attempt is made to ensure the tag keys match the tag keys  
      within the function space.  
   
      \param tagKeys - Input - List of tag values.  
      \param values - Input - List of values, one for each tag.  
      \param defaultValue - Input - A default value, used if tag doesn't exist.  
      \param what - Input - A description of what this data represents.  
      \param expanded - Input - Flag, if true fill the entire container with  
                        the appropriate values.  
   */  
   Data(const DataTagged::TagListType& tagKeys,  
        const DataTagged::ValueListType& values,  
        const DataArrayView& defaultValue,  
        const FunctionSpace& what=FunctionSpace(),  
        bool expanded=false);  
   
   /**  
      \brief  
      Constructor which copies data from a python numarray.  
   
      \param value - Input - Data value for a single point.  
      \param what - Input - A description of what this data represents.  
      \param expanded - Input - Flag, if true fill the entire container with  
                        the value. Otherwise a more efficient storage  
                        mechanism will be used.  
   */  
   Data(const boost::python::numeric::array& value,  
        const FunctionSpace& what=FunctionSpace(),  
        bool expanded=false);  
   
   /**  
      \brief  
      Constructor which copies data from any object that can be converted into  
      a python numarray.  
149    
150       \param value - Input - Input data.       \param value - Input - Input data.
151       \param what - Input - A description of what this data represents.       \param what - Input - A description of what this data represents.
# Line 182  class Data { Line 153  class Data {
153                         the value. Otherwise a more efficient storage                         the value. Otherwise a more efficient storage
154                         mechanism will be used.                         mechanism will be used.
155    */    */
156      ESCRIPT_DLL_API
157    Data(const boost::python::object& value,    Data(const boost::python::object& value,
158         const FunctionSpace& what=FunctionSpace(),         const FunctionSpace& what=FunctionSpace(),
159         bool expanded=false);         bool expanded=false);
# Line 189  class Data { Line 161  class Data {
161    /**    /**
162       \brief       \brief
163       Constructor which creates a DataConstant.       Constructor which creates a DataConstant.
164       Copies data from any object that can be converted       Copies data from any object that can be treated like a python array/sequence.
165       into a numarray. All other parameters are copied from other.       All other parameters are copied from other.
166    
167       \param value - Input - Input data.       \param value - Input - Input data.
168       \param other - Input - contains all other parameters.       \param other - Input - contains all other parameters.
169    */    */
170      ESCRIPT_DLL_API
171    Data(const boost::python::object& value,    Data(const boost::python::object& value,
172         const Data& other);         const Data& other);
173    
# Line 202  class Data { Line 175  class Data {
175       \brief       \brief
176       Constructor which creates a DataConstant of "shape" with constant value.       Constructor which creates a DataConstant of "shape" with constant value.
177    */    */
178    Data(double value,    ESCRIPT_DLL_API
179         const boost::python::tuple& shape=boost::python::make_tuple(),    Data(double value,
180           const boost::python::tuple& shape=boost::python::make_tuple(),
181         const FunctionSpace& what=FunctionSpace(),         const FunctionSpace& what=FunctionSpace(),
182         bool expanded=false);         bool expanded=false);
183    
184    
185    
186      /**
187        \brief Create a Data using an existing DataAbstract. Warning: The new object assumes ownership of the pointer!
188        Once you have passed the pointer, do not delete it.
189      */
190      ESCRIPT_DLL_API
191      explicit Data(DataAbstract* underlyingdata);
192    
193      /**
194        \brief Create a Data based on the supplied DataAbstract
195      */
196      ESCRIPT_DLL_API
197      explicit Data(DataAbstract_ptr underlyingdata);
198    
199    /**    /**
200       \brief       \brief
201       Perform a deep copy.       Destructor
202      */
203      ESCRIPT_DLL_API
204      ~Data();
205    
206      /**
207         \brief Make this object a deep copy of "other".
208    */    */
209      ESCRIPT_DLL_API
210    void    void
211    copy(const Data& other);    copy(const Data& other);
212    
213    /**    /**
214         \brief Return a pointer to a deep copy of this object.
215      */
216      ESCRIPT_DLL_API
217      Data
218      copySelf();
219    
220    
221      /**
222         \brief produce a delayed evaluation version of this Data.
223      */
224      ESCRIPT_DLL_API
225      Data
226      delay();
227    
228      /**
229         \brief convert the current data into lazy data.
230      */
231      ESCRIPT_DLL_API
232      void
233      delaySelf();
234    
235    
236      /**
237       Member access methods.       Member access methods.
238    */    */
239    
240    /**    /**
241       \brief       \brief
242         switches on update protection
243    
244      */
245      ESCRIPT_DLL_API
246      void
247      setProtection();
248    
249      /**
250         \brief
251         Returns true, if the data object is protected against update
252    
253      */
254      ESCRIPT_DLL_API
255      bool
256      isProtected() const;
257    
258    
259    /**
260       \brief
261       Return the value of a data point as a python tuple.
262    */
263      ESCRIPT_DLL_API
264      const boost::python::object
265      getValueOfDataPointAsTuple(int dataPointNo);
266    
267      /**
268         \brief
269         sets the values of a data-point from a python object on this process
270      */
271      ESCRIPT_DLL_API
272      void
273      setValueOfDataPointToPyObject(int dataPointNo, const boost::python::object& py_object);
274    
275      /**
276         \brief
277         sets the values of a data-point from a array-like object on this process
278      */
279      ESCRIPT_DLL_API
280      void
281      setValueOfDataPointToArray(int dataPointNo, const boost::python::object&);
282    
283      /**
284         \brief
285         sets the values of a data-point on this process
286      */
287      ESCRIPT_DLL_API
288      void
289      setValueOfDataPoint(int dataPointNo, const double);
290    
291      /**
292         \brief Return a data point across all processors as a python tuple.
293      */
294      ESCRIPT_DLL_API
295      const boost::python::object
296      getValueOfGlobalDataPointAsTuple(int procNo, int dataPointNo);
297    
298      /**
299         \brief
300         Return the tag number associated with the given data-point.
301    
302      */
303      ESCRIPT_DLL_API
304      int
305      getTagNumber(int dpno);
306    
307      /**
308         \brief
309       Return the C wrapper for the Data object.       Return the C wrapper for the Data object.
310    */    */
311      ESCRIPT_DLL_API
312    escriptDataC    escriptDataC
313    getDataC();    getDataC();
314    
315    
316    
317    /**    /**
318       \brief       \brief
319       Return the C wrapper for the Data object - const version.       Return the C wrapper for the Data object - const version.
320    */    */
321      ESCRIPT_DLL_API
322    escriptDataC    escriptDataC
323    getDataC() const;    getDataC() const;
324    
325    /**    /**
326       \brief      \brief How much space is required to evaulate a sample of the Data.
      Write the data as a string.  
327    */    */
328    inline    ESCRIPT_DLL_API
329    std::string    size_t
330    toString() const    getSampleBufferSize() const;
331    {  
332      return m_data->toString();  
   }  
333    
334    /**    /**
335       \brief       \brief
336       Return the DataArrayView of the point data. This essentially contains       Write the data as a string. For large amounts of data, a summary is printed.
      the shape information for each data point although it also may be used  
      to manipulate the point data.  
337    */    */
338    inline    ESCRIPT_DLL_API
339    const DataArrayView&    std::string
340    getPointDataView() const    toString() const;
   {  
      return m_data->getPointDataView();  
   }  
341    
342    /**    /**
343       \brief       \brief
344       Whatever the current Data type make this into a DataExpanded.       Whatever the current Data type make this into a DataExpanded.
345    */    */
346      ESCRIPT_DLL_API
347    void    void
348    expand();    expand();
349    
# Line 269  class Data { Line 353  class Data {
353       Constant data to be converted to tagged. An attempt to convert       Constant data to be converted to tagged. An attempt to convert
354       Expanded data to tagged will throw an exception.       Expanded data to tagged will throw an exception.
355    */    */
356      ESCRIPT_DLL_API
357    void    void
358    tag();    tag();
359    
360    /**    /**
361        \brief If this data is lazy, then convert it to ready data.
362        What type of ready data depends on the expression. For example, Constant+Tagged==Tagged.
363      */
364      ESCRIPT_DLL_API
365      void
366      resolve();
367    
368    
369      /**
370       \brief Ensures data is ready for write access.
371      This means that the data will be resolved if lazy and will be copied if shared with another Data object.
372      \warning This method should only be called in single threaded sections of code. (It modifies m_data).
373      Do not create any Data objects from this one between calling requireWrite and getSampleDataRW.
374      Doing so might introduce additional sharing.
375      */
376      ESCRIPT_DLL_API
377      void
378      requireWrite();
379    
380      /**
381       \brief       \brief
382       Return true if this Data is expanded.       Return true if this Data is expanded.
383         \note To determine if a sample will contain separate values for each datapoint. Use actsExpanded instead.
384    */    */
385      ESCRIPT_DLL_API
386    bool    bool
387    isExpanded() const;    isExpanded() const;
388    
389    /**    /**
390       \brief       \brief
391         Return true if this Data is expanded or resolves to expanded.
392         That is, if it has a separate value for each datapoint in the sample.
393      */
394      ESCRIPT_DLL_API
395      bool
396      actsExpanded() const;
397      
398    
399      /**
400         \brief
401       Return true if this Data is tagged.       Return true if this Data is tagged.
402    */    */
403      ESCRIPT_DLL_API
404    bool    bool
405    isTagged() const;    isTagged() const;
406    
# Line 290  class Data { Line 408  class Data {
408       \brief       \brief
409       Return true if this Data is constant.       Return true if this Data is constant.
410    */    */
411      ESCRIPT_DLL_API
412    bool    bool
413    isConstant() const;    isConstant() const;
414    
415    /**    /**
416         \brief Return true if this Data is lazy.
417      */
418      ESCRIPT_DLL_API
419      bool
420      isLazy() const;
421    
422      /**
423         \brief Return true if this data is ready.
424      */
425      ESCRIPT_DLL_API
426      bool
427      isReady() const;
428    
429      /**
430       \brief       \brief
431       Return true if this Data is empty.       Return true if this Data holds an instance of DataEmpty. This is _not_ the same as asking if the object
432    contains datapoints.
433    */    */
434      ESCRIPT_DLL_API
435    bool    bool
436    isEmpty() const;    isEmpty() const;
437    
# Line 304  class Data { Line 439  class Data {
439       \brief       \brief
440       Return the function space.       Return the function space.
441    */    */
442      ESCRIPT_DLL_API
443    inline    inline
444    const FunctionSpace&    const FunctionSpace&
445    getFunctionSpace() const    getFunctionSpace() const
# Line 315  class Data { Line 451  class Data {
451       \brief       \brief
452       Return a copy of the function space.       Return a copy of the function space.
453    */    */
454      ESCRIPT_DLL_API
455    const FunctionSpace    const FunctionSpace
456    getCopyOfFunctionSpace() const;    getCopyOfFunctionSpace() const;
457    
# Line 322  class Data { Line 459  class Data {
459       \brief       \brief
460       Return the domain.       Return the domain.
461    */    */
462      ESCRIPT_DLL_API
463    inline    inline
464    const AbstractDomain&  //   const AbstractDomain&
465      const_Domain_ptr
466    getDomain() const    getDomain() const
467    {    {
468       return getFunctionSpace().getDomain();       return getFunctionSpace().getDomain();
469    }    }
470    
471    
472      /**
473         \brief
474         Return the domain.
475         TODO: For internal use only.   This should be removed.
476      */
477      ESCRIPT_DLL_API
478      inline
479    //   const AbstractDomain&
480      Domain_ptr
481      getDomainPython() const
482      {
483         return getFunctionSpace().getDomainPython();
484      }
485    
486    /**    /**
487       \brief       \brief
488       Return a copy of the domain.       Return a copy of the domain.
489    */    */
490      ESCRIPT_DLL_API
491    const AbstractDomain    const AbstractDomain
492    getCopyOfDomain() const;    getCopyOfDomain() const;
493    
# Line 340  class Data { Line 495  class Data {
495       \brief       \brief
496       Return the rank of the point data.       Return the rank of the point data.
497    */    */
498      ESCRIPT_DLL_API
499    inline    inline
500    int    unsigned int
501    getDataPointRank() const    getDataPointRank() const
502    {    {
503      return m_data->getPointDataView().getRank();      return m_data->getRank();
504    }    }
505    
506    /**    /**
507       \brief       \brief
508         Return the number of data points
509      */
510      ESCRIPT_DLL_API
511      inline
512      int
513      getNumDataPoints() const
514      {
515        return getNumSamples() * getNumDataPointsPerSample();
516      }
517      /**
518         \brief
519       Return the number of samples.       Return the number of samples.
520    */    */
521      ESCRIPT_DLL_API
522    inline    inline
523    int    int
524    getNumSamples() const    getNumSamples() const
# Line 362  class Data { Line 530  class Data {
530       \brief       \brief
531       Return the number of data points per sample.       Return the number of data points per sample.
532    */    */
533      ESCRIPT_DLL_API
534    inline    inline
535    int    int
536    getNumDataPointsPerSample() const    getNumDataPointsPerSample() const
# Line 369  class Data { Line 538  class Data {
538      return m_data->getNumDPPSample();      return m_data->getNumDPPSample();
539    }    }
540    
541    
542      /**
543        \brief
544        Return the number of values in the shape for this object.
545      */
546      ESCRIPT_DLL_API
547      int
548      getNoValues() const
549      {
550        return m_data->getNoValues();
551      }
552    
553    
554      /**
555         \brief
556         dumps the object into a netCDF file
557      */
558      ESCRIPT_DLL_API
559      void
560      dump(const std::string fileName) const;
561    
562     /**
563      \brief returns the values of the object as a list of tuples (one for each datapoint).
564    
565      \param scalarastuple If true, scalar data will produce single valued tuples [(1,) (2,) ...]
566    If false, the result is a list of scalars [1, 2, ...]
567     */
568      ESCRIPT_DLL_API
569      const boost::python::object
570      toListOfTuples(bool scalarastuple=true);
571    
572    
573     /**
574        \brief
575        Return the sample data for the given sample no. This is not the
576        preferred interface but is provided for use by C code.
577        The bufferg parameter is only required for LazyData.
578        \param sampleNo - Input - the given sample no.
579        \param bufferg - A buffer to compute (and store) sample data in will be selected from this group.
580        \return pointer to the sample data.
581    */
582      ESCRIPT_DLL_API
583      inline
584      const DataAbstract::ValueType::value_type*
585      getSampleDataRO(DataAbstract::ValueType::size_type sampleNo, BufferGroup* bufferg=0);
586    
587    
588    /**    /**
589       \brief       \brief
590       Return the sample data for the given sample no. This is not the       Return the sample data for the given sample no. This is not the
591       preferred interface but is provided for use by C code.       preferred interface but is provided for use by C code.
592       \param sampleNo - Input - the given sample no.       \param sampleNo - Input - the given sample no.
593         \return pointer to the sample data.
594    */    */
595      ESCRIPT_DLL_API
596    inline    inline
597    DataAbstract::ValueType::value_type*    DataAbstract::ValueType::value_type*
598    getSampleData(DataAbstract::ValueType::size_type sampleNo)    getSampleDataRW(DataAbstract::ValueType::size_type sampleNo);
599    {  
     return m_data->getSampleData(sampleNo);  
   }  
600    
601    /**    /**
602       \brief       \brief
# Line 388  class Data { Line 604  class Data {
604       access data that isn't tagged an exception will be thrown.       access data that isn't tagged an exception will be thrown.
605       \param tag - Input - the tag key.       \param tag - Input - the tag key.
606    */    */
607      ESCRIPT_DLL_API
608    inline    inline
609    DataAbstract::ValueType::value_type*    DataAbstract::ValueType::value_type*
610    getSampleDataByTag(int tag)    getSampleDataByTag(int tag)
# Line 397  class Data { Line 614  class Data {
614    
615    /**    /**
616       \brief       \brief
617       Return a view into the data for the data point specified.       Return a reference into the DataVector which points to the specified data point.
618       NOTE: Construction of the DataArrayView is a relatively expensive       \param sampleNo - Input -
619       operation.       \param dataPointNo - Input -
620      */
621      ESCRIPT_DLL_API
622      DataTypes::ValueType::const_reference
623      getDataPointRO(int sampleNo, int dataPointNo);
624    
625      /**
626         \brief
627         Return a reference into the DataVector which points to the specified data point.
628       \param sampleNo - Input -       \param sampleNo - Input -
629       \param dataPointNo - Input -       \param dataPointNo - Input -
630    */    */
631      ESCRIPT_DLL_API
632      DataTypes::ValueType::reference
633      getDataPointRW(int sampleNo, int dataPointNo);
634    
635    
636    
637      /**
638         \brief
639         Return the offset for the given sample and point within the sample
640      */
641      ESCRIPT_DLL_API
642    inline    inline
643    DataArrayView    DataTypes::ValueType::size_type
644    getDataPoint(int sampleNo,    getDataOffset(int sampleNo,
645                 int dataPointNo)                 int dataPointNo)
646    {    {
647      return m_data->getDataPoint(sampleNo,dataPointNo);        return m_data->getPointOffset(sampleNo,dataPointNo);
648    }    }
649    
650    /**    /**
651       \brief       \brief
652       Return a reference to the data point shape.       Return a reference to the data point shape.
653    */    */
654    const DataArrayView::ShapeType&    ESCRIPT_DLL_API
655    getDataPointShape() const;    inline
656      const DataTypes::ShapeType&
657      getDataPointShape() const
658      {
659        return m_data->getShape();
660      }
661    
662    /**    /**
663       \brief       \brief
664       Return the data point shape as a tuple of integers.       Return the data point shape as a tuple of integers.
665    */    */
666    boost::python::tuple    ESCRIPT_DLL_API
667      const boost::python::tuple
668    getShapeTuple() const;    getShapeTuple() const;
669    
670    /**    /**
# Line 430  class Data { Line 672  class Data {
672       Return the size of the data point. It is the product of the       Return the size of the data point. It is the product of the
673       data point shape dimensions.       data point shape dimensions.
674    */    */
675      ESCRIPT_DLL_API
676    int    int
677    getDataPointSize() const;    getDataPointSize() const;
678    
# Line 437  class Data { Line 680  class Data {
680       \brief       \brief
681       Return the number of doubles stored for this Data.       Return the number of doubles stored for this Data.
682    */    */
683    DataArrayView::ValueType::size_type    ESCRIPT_DLL_API
684      DataTypes::ValueType::size_type
685    getLength() const;    getLength() const;
686    
687    /**    /**
688      \brief Return true if this object contains no samples.
689      This is not the same as isEmpty()
690      */
691      ESCRIPT_DLL_API
692      bool
693      hasNoSamples() const
694      {
695        return getLength()==0;
696      }
697    
698      /**
699       \brief       \brief
700       Assign the given value to the tag. Implicitly converts this       Assign the given value to the tag assocciated with name. Implicitly converts this
701       object to type DataTagged. Throws an exception if this object       object to type DataTagged. Throws an exception if this object
702       cannot be converted to a DataTagged object.       cannot be converted to a DataTagged object or name cannot be mapped onto a tag key.
703         \param name - Input - name of tag.
704         \param value - Input - Value to associate with given key.
705      */
706      ESCRIPT_DLL_API
707      void
708      setTaggedValueByName(std::string name,
709                           const boost::python::object& value);
710    
711      /**
712         \brief
713         Assign the given value to the tag. Implicitly converts this
714         object to type DataTagged if it is constant.
715    
716       \param tagKey - Input - Integer key.       \param tagKey - Input - Integer key.
717       \param value - Input - Value to associate with given key.       \param value - Input - Value to associate with given key.
718        ==>*
719    */    */
720      ESCRIPT_DLL_API
721    void    void
722    setTaggedValue(int tagKey,    setTaggedValue(int tagKey,
723                   const boost::python::object& value);                   const boost::python::object& value);
# Line 455  class Data { Line 725  class Data {
725    /**    /**
726       \brief       \brief
727       Assign the given value to the tag. Implicitly converts this       Assign the given value to the tag. Implicitly converts this
728       object to type DataTagged. Throws an exception if this object       object to type DataTagged if it is constant.
729       cannot be converted to a DataTagged object.  
730       \param tagKey - Input - Integer key.       \param tagKey - Input - Integer key.
731         \param pointshape - Input - The shape of the value parameter
732       \param value - Input - Value to associate with given key.       \param value - Input - Value to associate with given key.
733       Note: removed for now - this version not needed, and breaks escript.cpp       \param dataOffset - Input - Offset of the begining of the point within the value parameter
734    */    */
735    /*    ESCRIPT_DLL_API
736    void    void
737    setTaggedValue(int tagKey,    setTaggedValueFromCPP(int tagKey,
738                   const DataArrayView& value);              const DataTypes::ShapeType& pointshape,
739    */                          const DataTypes::ValueType& value,
740                int dataOffset=0);
741    
742    
743    
744    /**    /**
745      \brief      \brief
746      Copy other Data object into this Data object where mask is positive.      Copy other Data object into this Data object where mask is positive.
747    */    */
748      ESCRIPT_DLL_API
749    void    void
750    copyWithMask(const Data& other,    copyWithMask(const Data& other,
751                 const Data& mask);                 const Data& mask);
# Line 481  class Data { Line 756  class Data {
756    
757    /**    /**
758       \brief       \brief
759         set all values to zero
760         *
761      */
762      ESCRIPT_DLL_API
763      void
764      setToZero();
765    
766      /**
767         \brief
768       Interpolates this onto the given functionspace and returns       Interpolates this onto the given functionspace and returns
769       the result as a Data object.       the result as a Data object.
770         *
771    */    */
772      ESCRIPT_DLL_API
773    Data    Data
774    interpolate(const FunctionSpace& functionspace) const;    interpolate(const FunctionSpace& functionspace) const;
775    
776    
777      ESCRIPT_DLL_API
778      Data
779      interpolateFromTable2D(const WrappedArray& table, double Amin, double Astep,
780                           double undef, Data& B, double Bmin, double Bstep,bool check_boundaries);
781    
782      ESCRIPT_DLL_API
783      Data
784      interpolateFromTable1D(const WrappedArray& table, double Amin, double Astep,
785                           double undef,bool check_boundaries);
786    
787    
788    
789    
790      ESCRIPT_DLL_API
791      Data
792      interpolateFromTable2DP(boost::python::object table, double Amin, double Astep,
793                            Data& B, double Bmin, double Bstep, double undef,bool check_boundaries);
794    
795      ESCRIPT_DLL_API
796      Data
797      interpolateFromTable1DP(boost::python::object table, double Amin, double Astep,
798                            double undef,bool check_boundaries);
799    
800    /**    /**
801       \brief       \brief
802       Calculates the gradient of the data at the data points of functionspace.       Calculates the gradient of the data at the data points of functionspace.
803       If functionspace is not present the function space of Function(getDomain()) is used.       If functionspace is not present the function space of Function(getDomain()) is used.
804         *
805    */    */
806      ESCRIPT_DLL_API
807    Data    Data
808    gradOn(const FunctionSpace& functionspace) const;    gradOn(const FunctionSpace& functionspace) const;
809    
810      ESCRIPT_DLL_API
811    Data    Data
812    grad() const;    grad() const;
813    
814    /**    /**
815       \brief      \brief
816       Calculate the integral over the function space domain.       Calculate the integral over the function space domain as a python tuple.
817    */    */
818    boost::python::numeric::array    ESCRIPT_DLL_API
819    integrate() const;    boost::python::object
820      integrateToTuple_const() const;
821    
822    
823    /**    /**
824        \brief
825         Calculate the integral over the function space domain as a python tuple.
826      */
827      ESCRIPT_DLL_API
828      boost::python::object
829      integrateToTuple();
830    
831    
832    
833      /**
834         \brief
835         Returns 1./ Data object
836         *
837      */
838      ESCRIPT_DLL_API
839      Data
840      oneOver() const;
841      /**
842       \brief       \brief
843       Return a Data with a 1 for +ive values and a 0 for 0 or -ive values.       Return a Data with a 1 for +ive values and a 0 for 0 or -ive values.
844         *
845    */    */
846      ESCRIPT_DLL_API
847    Data    Data
848    wherePositive() const;    wherePositive() const;
849    
850    /**    /**
851       \brief       \brief
852       Return a Data with a 1 for -ive values and a 0 for +ive or 0 values.       Return a Data with a 1 for -ive values and a 0 for +ive or 0 values.
853         *
854    */    */
855      ESCRIPT_DLL_API
856    Data    Data
857    whereNegative() const;    whereNegative() const;
858    
859    /**    /**
860       \brief       \brief
861       Return a Data with a 1 for +ive or 0 values and a 0 for -ive values.       Return a Data with a 1 for +ive or 0 values and a 0 for -ive values.
862         *
863    */    */
864      ESCRIPT_DLL_API
865    Data    Data
866    whereNonNegative() const;    whereNonNegative() const;
867    
868    /**    /**
869       \brief       \brief
870       Return a Data with a 1 for -ive or 0 values and a 0 for +ive values.       Return a Data with a 1 for -ive or 0 values and a 0 for +ive values.
871         *
872    */    */
873      ESCRIPT_DLL_API
874    Data    Data
875    whereNonPositive() const;    whereNonPositive() const;
876    
877    /**    /**
878       \brief       \brief
879       Return a Data with a 1 for 0 values and a 0 for +ive or -ive values.       Return a Data with a 1 for 0 values and a 0 for +ive or -ive values.
880         *
881    */    */
882      ESCRIPT_DLL_API
883    Data    Data
884    whereZero() const;    whereZero(double tol=0.0) const;
885    
886    /**    /**
887       \brief       \brief
888       Return a Data with a 0 for 0 values and a 1 for +ive or -ive values.       Return a Data with a 0 for 0 values and a 1 for +ive or -ive values.
889         *
890      */
891      ESCRIPT_DLL_API
892      Data
893      whereNonZero(double tol=0.0) const;
894    
895      /**
896         \brief
897         Return the maximum absolute value of this Data object.
898    
899         The method is not const because lazy data needs to be expanded before Lsup can be computed.
900         The _const form can be used when the Data object is const, however this will only work for
901         Data which is not Lazy.
902    
903         For Data which contain no samples (or tagged Data for which no tags in use have a value)
904         zero is returned.
905      */
906      ESCRIPT_DLL_API
907      double
908      Lsup();
909    
910      ESCRIPT_DLL_API
911      double
912      Lsup_const() const;
913    
914    
915      /**
916         \brief
917         Return the maximum value of this Data object.
918    
919         The method is not const because lazy data needs to be expanded before sup can be computed.
920         The _const form can be used when the Data object is const, however this will only work for
921         Data which is not Lazy.
922    
923         For Data which contain no samples (or tagged Data for which no tags in use have a value)
924         a large negative value is returned.
925      */
926      ESCRIPT_DLL_API
927      double
928      sup();
929    
930      ESCRIPT_DLL_API
931      double
932      sup_const() const;
933    
934    
935      /**
936         \brief
937         Return the minimum value of this Data object.
938    
939         The method is not const because lazy data needs to be expanded before inf can be computed.
940         The _const form can be used when the Data object is const, however this will only work for
941         Data which is not Lazy.
942    
943         For Data which contain no samples (or tagged Data for which no tags in use have a value)
944         a large positive value is returned.
945      */
946      ESCRIPT_DLL_API
947      double
948      inf();
949    
950      ESCRIPT_DLL_API
951      double
952      inf_const() const;
953    
954    
955    
956      /**
957         \brief
958         Return the absolute value of each data point of this Data object.
959         *
960      */
961      ESCRIPT_DLL_API
962      Data
963      abs() const;
964    
965      /**
966         \brief
967         Return the maximum value of each data point of this Data object.
968         *
969      */
970      ESCRIPT_DLL_API
971      Data
972      maxval() const;
973    
974      /**
975         \brief
976         Return the minimum value of each data point of this Data object.
977         *
978      */
979      ESCRIPT_DLL_API
980      Data
981      minval() const;
982    
983      /**
984         \brief
985         Return the (sample number, data-point number) of the data point with
986         the minimum component value in this Data object.
987         \note If you are working in python, please consider using Locator
988    instead of manually manipulating process and point IDs.
989      */
990      ESCRIPT_DLL_API
991      const boost::python::tuple
992      minGlobalDataPoint() const;
993    
994      /**
995         \brief
996         Return the (sample number, data-point number) of the data point with
997         the minimum component value in this Data object.
998         \note If you are working in python, please consider using Locator
999    instead of manually manipulating process and point IDs.
1000      */
1001      ESCRIPT_DLL_API
1002      const boost::python::tuple
1003      maxGlobalDataPoint() const;
1004    
1005    
1006    
1007      /**
1008         \brief
1009         Return the sign of each data point of this Data object.
1010         -1 for negative values, zero for zero values, 1 for positive values.
1011         *
1012    */    */
1013      ESCRIPT_DLL_API
1014    Data    Data
1015    whereNonZero() const;    sign() const;
1016    
1017      /**
1018         \brief
1019         Return the symmetric part of a matrix which is half the matrix plus its transpose.
1020         *
1021      */
1022      ESCRIPT_DLL_API
1023      Data
1024      symmetric() const;
1025    
1026      /**
1027         \brief
1028         Return the nonsymmetric part of a matrix which is half the matrix minus its transpose.
1029         *
1030      */
1031      ESCRIPT_DLL_API
1032      Data
1033      nonsymmetric() const;
1034    
1035      /**
1036         \brief
1037         Return the trace of a matrix
1038         *
1039      */
1040      ESCRIPT_DLL_API
1041      Data
1042      trace(int axis_offset) const;
1043    
1044      /**
1045         \brief
1046         Transpose each data point of this Data object around the given axis.
1047         *
1048      */
1049      ESCRIPT_DLL_API
1050      Data
1051      transpose(int axis_offset) const;
1052    
1053      /**
1054         \brief
1055         Return the eigenvalues of the symmetric part at each data point of this Data object in increasing values.
1056         Currently this function is restricted to rank 2, square shape, and dimension 3.
1057         *
1058      */
1059      ESCRIPT_DLL_API
1060      Data
1061      eigenvalues() const;
1062    
1063      /**
1064         \brief
1065         Return the eigenvalues and corresponding eigenvcetors of the symmetric part at each data point of this Data object.
1066         the eigenvalues are ordered in increasing size where eigenvalues with relative difference less than
1067         tol are treated as equal. The eigenvectors are orthogonal, normalized and the sclaed such that the
1068         first non-zero entry is positive.
1069         Currently this function is restricted to rank 2, square shape, and dimension 3
1070         *
1071      */
1072      ESCRIPT_DLL_API
1073      const boost::python::tuple
1074      eigenvalues_and_eigenvectors(const double tol=1.e-12) const;
1075    
1076      /**
1077         \brief
1078         swaps the components axis0 and axis1
1079         *
1080      */
1081      ESCRIPT_DLL_API
1082      Data
1083      swapaxes(const int axis0, const int axis1) const;
1084    
1085      /**
1086         \brief
1087         Return the error function erf of each data point of this Data object.
1088         *
1089      */
1090      ESCRIPT_DLL_API
1091      Data
1092      erf() const;
1093    
1094    /**    /**
1095       \brief       \brief
1096       Return the sin of each data point of this Data object.       Return the sin of each data point of this Data object.
1097         *
1098    */    */
1099      ESCRIPT_DLL_API
1100    Data    Data
1101    sin() const;    sin() const;
1102    
1103    /**    /**
1104       \brief       \brief
1105       Return the cos of each data point of this Data object.       Return the cos of each data point of this Data object.
1106         *
1107    */    */
1108      ESCRIPT_DLL_API
1109    Data    Data
1110    cos() const;    cos() const;
1111    
1112    /**    /**
1113       \brief       \brief
1114       Return the tan of each data point of this Data object.       Return the tan of each data point of this Data object.
1115         *
1116    */    */
1117      ESCRIPT_DLL_API
1118    Data    Data
1119    tan() const;    tan() const;
1120    
1121    /**    /**
1122       \brief       \brief
1123       Return the log to base 10 of each data point of this Data object.       Return the asin of each data point of this Data object.
1124         *
1125    */    */
1126      ESCRIPT_DLL_API
1127    Data    Data
1128    log() const;    asin() const;
1129    
1130    /**    /**
1131       \brief       \brief
1132       Return the natural log of each data point of this Data object.       Return the acos of each data point of this Data object.
1133         *
1134    */    */
1135      ESCRIPT_DLL_API
1136    Data    Data
1137    ln() const;    acos() const;
1138    
1139    /**    /**
1140       \brief       \brief
1141       Return the maximum absolute value of this Data object.       Return the atan of each data point of this Data object.
1142         *
1143    */    */
1144    double    ESCRIPT_DLL_API
1145    Lsup() const;    Data
1146      atan() const;
1147    
1148    /**    /**
1149       \brief       \brief
1150       Return the maximum value of this Data object.       Return the sinh of each data point of this Data object.
1151         *
1152    */    */
1153    double    ESCRIPT_DLL_API
1154    sup() const;    Data
1155      sinh() const;
1156    
1157    /**    /**
1158       \brief       \brief
1159       Return the minimum value of this Data object.       Return the cosh of each data point of this Data object.
1160         *
1161    */    */
1162    double    ESCRIPT_DLL_API
1163    inf() const;    Data
1164      cosh() const;
1165    
1166    /**    /**
1167       \brief       \brief
1168       Return the absolute value of each data point of this Data object.       Return the tanh of each data point of this Data object.
1169         *
1170    */    */
1171      ESCRIPT_DLL_API
1172    Data    Data
1173    abs() const;    tanh() const;
1174    
1175    /**    /**
1176       \brief       \brief
1177       Return the maximum value of each data point of this Data object.       Return the asinh of each data point of this Data object.
1178         *
1179    */    */
1180      ESCRIPT_DLL_API
1181    Data    Data
1182    maxval() const;    asinh() const;
1183    
1184    /**    /**
1185       \brief       \brief
1186       Return the minimum value of each data point of this Data object.       Return the acosh of each data point of this Data object.
1187         *
1188    */    */
1189      ESCRIPT_DLL_API
1190    Data    Data
1191    minval() const;    acosh() const;
1192    
1193    /**    /**
1194       \brief       \brief
1195       Return the length of each data point of this Data object.       Return the atanh of each data point of this Data object.
1196       sqrt(sum(A[i,j,k,l]^2))       *
1197    */    */
1198      ESCRIPT_DLL_API
1199    Data    Data
1200    length() const;    atanh() const;
1201    
1202    /**    /**
1203       \brief       \brief
1204       Return the sign of each data point of this Data object.       Return the log to base 10 of each data point of this Data object.
1205       -1 for negative values, zero for zero values, 1 for positive values.       *
1206    */    */
1207      ESCRIPT_DLL_API
1208    Data    Data
1209    sign() const;    log10() const;
1210    
1211    /**    /**
1212      \transpose       \brief
1213      Transpose each data point of this Data object around the given axis.       Return the natural log of each data point of this Data object.
1214         *
1215    */    */
1216      ESCRIPT_DLL_API
1217    Data    Data
1218    transpose(int axis) const;    log() const;
1219    
1220    /**    /**
1221      \trace       \brief
1222      Calculate the trace of each data point of this Data object.       Return the exponential function of each data point of this Data object.
1223      sum(A[i,i,i,i])       *
1224    */    */
1225      ESCRIPT_DLL_API
1226    Data    Data
1227    trace() const;    exp() const;
1228    
1229    /**    /**
1230      \exp       \brief
1231      Return the exponential function of each data point of this Data object.       Return the square root of each data point of this Data object.
1232         *
1233    */    */
1234      ESCRIPT_DLL_API
1235    Data    Data
1236    exp() const;    sqrt() const;
1237    
1238    /**    /**
1239      \sqrt       \brief
1240      Return the square root of each data point of this Data object.       Return the negation of each data point of this Data object.
1241         *
1242    */    */
1243      ESCRIPT_DLL_API
1244    Data    Data
1245    sqrt() const;    neg() const;
1246    
1247      /**
1248         \brief
1249         Return the identity of each data point of this Data object.
1250         Simply returns this object unmodified.
1251         *
1252      */
1253      ESCRIPT_DLL_API
1254      Data
1255      pos() const;
1256    
1257    /**    /**
1258       \brief       \brief
1259       Return the given power of each data point of this Data object.       Return the given power of each data point of this Data object.
1260    
1261         \param right Input - the power to raise the object to.
1262         *
1263    */    */
1264      ESCRIPT_DLL_API
1265    Data    Data
1266    powD(const Data& right) const;    powD(const Data& right) const;
1267    
1268      /**
1269         \brief
1270         Return the given power of each data point of this boost python object.
1271    
1272         \param right Input - the power to raise the object to.
1273         *
1274       */
1275      ESCRIPT_DLL_API
1276    Data    Data
1277    powO(const boost::python::object& right) const;    powO(const boost::python::object& right) const;
1278    
1279    /**    /**
1280      \brief       \brief
1281      Return the negation of each data point of this Data object.       Return the given power of each data point of this boost python object.
1282    */  
1283         \param left Input - the bases
1284         *
1285       */
1286    
1287      ESCRIPT_DLL_API
1288    Data    Data
1289    neg() const;    rpowO(const boost::python::object& left) const;
1290    
1291    /**    /**
1292      \brief       \brief
1293      Return the identity of each data point of this Data object.       writes the object to a file in the DX file format
     Simply returns this object unmodified.  
1294    */    */
1295    Data    ESCRIPT_DLL_API
1296    pos() const;    void
1297      saveDX(std::string fileName) const;
1298    
1299      /**
1300         \brief
1301         writes the object to a file in the VTK file format
1302      */
1303      ESCRIPT_DLL_API
1304      void
1305      saveVTK(std::string fileName) const;
1306    
1307    
1308    
1309    /**    /**
1310       \brief       \brief
1311       Overloaded operator +=       Overloaded operator +=
1312       \param right - Input - The right hand side.       \param right - Input - The right hand side.
1313         *
1314    */    */
1315      ESCRIPT_DLL_API
1316    Data& operator+=(const Data& right);    Data& operator+=(const Data& right);
1317      ESCRIPT_DLL_API
1318    Data& operator+=(const boost::python::object& right);    Data& operator+=(const boost::python::object& right);
1319    
1320      ESCRIPT_DLL_API
1321      Data& operator=(const Data& other);
1322    
1323    /**    /**
1324       \brief       \brief
1325       Overloaded operator -=       Overloaded operator -=
1326       \param right - Input - The right hand side.       \param right - Input - The right hand side.
1327         *
1328    */    */
1329      ESCRIPT_DLL_API
1330    Data& operator-=(const Data& right);    Data& operator-=(const Data& right);
1331      ESCRIPT_DLL_API
1332    Data& operator-=(const boost::python::object& right);    Data& operator-=(const boost::python::object& right);
1333    
1334   /**   /**
1335       \brief       \brief
1336       Overloaded operator *=       Overloaded operator *=
1337       \param right - Input - The right hand side.       \param right - Input - The right hand side.
1338         *
1339    */    */
1340      ESCRIPT_DLL_API
1341    Data& operator*=(const Data& right);    Data& operator*=(const Data& right);
1342      ESCRIPT_DLL_API
1343    Data& operator*=(const boost::python::object& right);    Data& operator*=(const boost::python::object& right);
1344    
1345   /**   /**
1346       \brief       \brief
1347       Overloaded operator /=       Overloaded operator /=
1348       \param right - Input - The right hand side.       \param right - Input - The right hand side.
1349         *
1350    */    */
1351      ESCRIPT_DLL_API
1352    Data& operator/=(const Data& right);    Data& operator/=(const Data& right);
1353      ESCRIPT_DLL_API
1354    Data& operator/=(const boost::python::object& right);    Data& operator/=(const boost::python::object& right);
1355    
1356    /**    /**
1357       \brief       \brief
1358       Returns true if this can be interpolated to functionspace.       Returns true if this can be interpolated to functionspace.
1359    */    */
1360      ESCRIPT_DLL_API
1361    bool    bool
1362    probeInterpolation(const FunctionSpace& functionspace) const;    probeInterpolation(const FunctionSpace& functionspace) const;
1363    
# Line 748  class Data { Line 1376  class Data {
1376       \param key - Input - python slice tuple specifying       \param key - Input - python slice tuple specifying
1377       slice to return.       slice to return.
1378    */    */
1379      ESCRIPT_DLL_API
1380    Data    Data
1381    getItem(const boost::python::object& key) const;    getItem(const boost::python::object& key) const;
1382    
# Line 755  class Data { Line 1384  class Data {
1384       \brief       \brief
1385       Copies slice from value into this Data object.       Copies slice from value into this Data object.
1386    
      \description  
1387       Implements the [] set operator in python.       Implements the [] set operator in python.
1388       Calls setSlice.       Calls setSlice.
1389    
# Line 763  class Data { Line 1391  class Data {
1391       slice to copy from value.       slice to copy from value.
1392       \param value - Input - Data object to copy from.       \param value - Input - Data object to copy from.
1393    */    */
1394      ESCRIPT_DLL_API
1395    void    void
1396    setItemD(const boost::python::object& key,    setItemD(const boost::python::object& key,
1397             const Data& value);             const Data& value);
1398    
1399      ESCRIPT_DLL_API
1400    void    void
1401    setItemO(const boost::python::object& key,    setItemO(const boost::python::object& key,
1402             const boost::python::object& value);             const boost::python::object& value);
# Line 779  class Data { Line 1409  class Data {
1409       this Data object.       this Data object.
1410    */    */
1411    template <class UnaryFunction>    template <class UnaryFunction>
1412      ESCRIPT_DLL_API
1413    inline    inline
1414    void    void
1415    unaryOp(UnaryFunction operation);    unaryOp2(UnaryFunction operation);
1416    
1417    /**    /**
1418       \brief       \brief
1419       Return a Data object containing the specified slice of       Return a Data object containing the specified slice of
1420       this Data object.       this Data object.
1421       \param region - Input - Region to copy.       \param region - Input - Region to copy.
1422         *
1423    */    */
1424      ESCRIPT_DLL_API
1425    Data    Data
1426    getSlice(const DataArrayView::RegionType& region) const;    getSlice(const DataTypes::RegionType& region) const;
1427    
1428    /**    /**
1429       \brief       \brief
# Line 798  class Data { Line 1431  class Data {
1431       Data object.       Data object.
1432       \param value - Input - Data to copy from.       \param value - Input - Data to copy from.
1433       \param region - Input - Region to copy.       \param region - Input - Region to copy.
1434         *
1435    */    */
1436      ESCRIPT_DLL_API
1437    void    void
1438    setSlice(const Data& value,    setSlice(const Data& value,
1439             const DataArrayView::RegionType& region);             const DataTypes::RegionType& region);
1440    
1441      /**
1442         \brief
1443         print the data values to stdout. Used for debugging
1444      */
1445      ESCRIPT_DLL_API
1446      void
1447            print(void);
1448    
1449      /**
1450         \brief
1451         return the MPI rank number of the local data
1452                     MPI_COMM_WORLD is assumed and the result of MPI_Comm_size()
1453                     is returned
1454      */
1455      ESCRIPT_DLL_API
1456            int
1457            get_MPIRank(void) const;
1458    
1459      /**
1460         \brief
1461         return the MPI rank number of the local data
1462                     MPI_COMM_WORLD is assumed and the result of MPI_Comm_rank()
1463                     is returned
1464      */
1465      ESCRIPT_DLL_API
1466            int
1467            get_MPISize(void) const;
1468    
1469      /**
1470         \brief
1471         return the MPI rank number of the local data
1472                     MPI_COMM_WORLD is assumed and returned.
1473      */
1474      ESCRIPT_DLL_API
1475            MPI_Comm
1476            get_MPIComm(void) const;
1477    
1478      /**
1479         \brief
1480         return the object produced by the factory, which is a DataConstant or DataExpanded
1481        TODO Ownership of this object should be explained in doco.
1482      */
1483      ESCRIPT_DLL_API
1484            DataAbstract*
1485            borrowData(void) const;
1486    
1487      ESCRIPT_DLL_API
1488            DataAbstract_ptr
1489            borrowDataPtr(void) const;
1490    
1491      ESCRIPT_DLL_API
1492            DataReady_ptr
1493            borrowReadyPtr(void) const;
1494    
1495    
1496    
1497      /**
1498         \brief
1499         Return a pointer to the beginning of the datapoint at the specified offset.
1500         TODO Eventually these should be inlined.
1501         \param i - position(offset) in the underlying datastructure
1502      */
1503    
1504      ESCRIPT_DLL_API
1505            DataTypes::ValueType::const_reference
1506            getDataAtOffsetRO(DataTypes::ValueType::size_type i);
1507    
1508    
1509      ESCRIPT_DLL_API
1510            DataTypes::ValueType::reference
1511            getDataAtOffsetRW(DataTypes::ValueType::size_type i);
1512    
1513    
1514    
1515    /**
1516       \brief Create a buffer for use by getSample
1517       Allocates a DataVector large enough for DataLazy::resolveSample to operate on for the current Data.
1518       Do not use this buffer for other Data instances (unless you are sure they will be the same size).
1519      
1520       In multi-threaded sections, this needs to be called on each thread.
1521    
1522       \return A BufferGroup* if Data is lazy, NULL otherwise.
1523       \warning This pointer must be deallocated using freeSampleBuffer to avoid cross library memory issues.
1524    */
1525      ESCRIPT_DLL_API
1526      BufferGroup*
1527      allocSampleBuffer() const;
1528    
1529    /**
1530       \brief Free a buffer allocated with allocSampleBuffer.
1531       \param buffer Input - pointer to the buffer to deallocate.
1532    */
1533    ESCRIPT_DLL_API void freeSampleBuffer(BufferGroup* buffer);
1534    
1535   protected:   protected:
1536    
1537   private:   private:
1538    
1539      double
1540      LsupWorker() const;
1541    
1542      double
1543      supWorker() const;
1544    
1545      double
1546      infWorker() const;
1547    
1548      boost::python::object
1549      integrateWorker() const;
1550    
1551      void
1552      calc_minGlobalDataPoint(int& ProcNo,  int& DataPointNo) const;
1553    
1554      void
1555      calc_maxGlobalDataPoint(int& ProcNo,  int& DataPointNo) const;
1556    
1557    
1558    /**    /**
1559       \brief       \brief
1560       Check *this and the right operand are compatible. Throws       Check *this and the right operand are compatible. Throws
# Line 823  class Data { Line 1571  class Data {
1571    /**    /**
1572       \brief       \brief
1573       Perform the specified reduction algorithm on every element of every data point in       Perform the specified reduction algorithm on every element of every data point in
1574       this Data object and return the single double value result.       this Data object according to the given function and return the single value result.
1575    */    */
1576    template <class UnaryFunction>    template <class BinaryFunction>
1577    inline    inline
1578    double    double
1579    algorithm(UnaryFunction operation) const;    algorithm(BinaryFunction operation,
1580                double initial_value) const;
1581    
1582    /**    /**
1583       \brief       \brief
1584       Perform the given binary operation on all of the data's elements.       Reduce each data-point in this Data object using the given operation. Return a Data
1585       The underlying type of the right hand side (right) determines the final       object with the same number of data-points, but with each data-point containing only
1586       type of *this after the operation. For example if the right hand side       one value - the result of the reduction operation on the corresponding data-point in
1587       is expanded *this will be expanded if necessary.       this Data object
      RHS is a Data object.  
1588    */    */
1589    template <class BinaryFunction>    template <class BinaryFunction>
1590    inline    inline
1591    void    Data
1592    binaryOp(const Data& right,    dp_algorithm(BinaryFunction operation,
1593             BinaryFunction operation);                 double initial_value) const;
1594    
1595    /**    /**
1596       \brief       \brief
1597       Perform the given binary operation on all of the data's elements.       Perform the given binary operation on all of the data's elements.
1598       RHS is a boost::python object.       The underlying type of the right hand side (right) determines the final
1599         type of *this after the operation. For example if the right hand side
1600         is expanded *this will be expanded if necessary.
1601         RHS is a Data object.
1602    */    */
1603    template <class BinaryFunction>    template <class BinaryFunction>
1604    inline    inline
1605    void    void
1606    binaryOp(const boost::python::object& right,    binaryOp(const Data& right,
1607             BinaryFunction operation);             BinaryFunction operation);
1608    
1609    /**    /**
# Line 875  class Data { Line 1626  class Data {
1626       \brief       \brief
1627       Construct a Data object of the appropriate type.       Construct a Data object of the appropriate type.
1628    */    */
1629    template <class IValueType>  
1630    void    void
1631    initialise(const IValueType& value,    initialise(const DataTypes::ValueType& value,
1632             const DataTypes::ShapeType& shape,
1633               const FunctionSpace& what,               const FunctionSpace& what,
1634               bool expanded);               bool expanded);
1635    
   /**  
      \brief  
      Reshape the data point if the data point is currently rank 0.  
      Will throw an exception if the data points are not rank 0.  
      The original data point value is used for all values of the new  
      data point.  
   */  
1636    void    void
1637    reshapeDataPoint(const DataArrayView::ShapeType& shape);    initialise(const WrappedArray& value,
1638                     const FunctionSpace& what,
1639                     bool expanded);
1640    
1641      //
1642      // flag to protect the data object against any update
1643      bool m_protected;
1644      mutable bool m_shared;
1645      bool m_lazy;
1646    
1647    //    //
1648    // pointer to the actual data object    // pointer to the actual data object
1649    boost::shared_ptr<DataAbstract> m_data;  //   boost::shared_ptr<DataAbstract> m_data;
1650      DataAbstract_ptr m_data;
1651    
1652  };  // If possible please use getReadyPtr instead.
1653    // But see warning below.
1654      const DataReady*
1655      getReady() const;
1656    
1657  template <class IValueType>    DataReady*
1658  void    getReady();
1659  Data::initialise(const IValueType& value,  
1660                   const FunctionSpace& what,  
1661                   bool expanded)  // Be wary of using this for local operations since it (temporarily) increases reference count.
1662  {  // If you are just using this to call a method on DataReady instead of DataAbstract consider using
1663    // getReady() instead
1664      DataReady_ptr
1665      getReadyPtr();
1666    
1667      const_DataReady_ptr
1668      getReadyPtr() const;
1669    
1670    
1671      /**
1672       \brief Update the Data's shared flag
1673       This indicates that the DataAbstract used by this object is now shared (or no longer shared).
1674       For internal use only.
1675      */
1676      void updateShareStatus(bool nowshared) const
1677      {
1678        m_shared=nowshared;     // m_shared is mutable
1679      }
1680    
1681      // In the isShared() method below:
1682      // A problem would occur if m_data (the address pointed to) were being modified
1683      // while the call m_data->is_shared is being executed.
1684      //
1685      // Q: So why do I think this code can be thread safe/correct?
1686      // A: We need to make some assumptions.
1687      // 1. We assume it is acceptable to return true under some conditions when we aren't shared.
1688      // 2. We assume that no constructions or assignments which will share previously unshared
1689      //    will occur while this call is executing. This is consistent with the way Data:: and C are written.
1690    //    //
1691    // Construct a Data object of the appropriate type.    // This means that the only transition we need to consider, is when a previously shared object is
1692    // Construct the object first as there seems to be a bug which causes    // not shared anymore. ie. the other objects have been destroyed or a deep copy has been made.
1693    // undefined behaviour if an exception is thrown during construction    // In those cases the m_shared flag changes to false after m_data has completed changing.
1694    // within the shared_ptr constructor.    // For any threads executing before the flag switches they will assume the object is still shared.
1695    if (expanded) {    bool isShared() const
1696      DataAbstract* temp=new DataExpanded(value,what);    {
1697      boost::shared_ptr<DataAbstract> temp_data(temp);      return m_shared;
1698      m_data=temp_data;  /*  if (m_shared) return true;
1699    } else {      if (m_data->isShared())        
1700      DataAbstract* temp=new DataConstant(value,what);      {                  
1701      boost::shared_ptr<DataAbstract> temp_data(temp);          updateShareStatus(true);
1702      m_data=temp_data;          return true;
1703        }
1704        return false;*/
1705      }
1706    
1707      void forceResolve()
1708      {
1709        if (isLazy())
1710        {
1711            #ifdef _OPENMP
1712            if (omp_in_parallel())
1713            {   // Yes this is throwing an exception out of an omp thread which is forbidden.
1714            throw DataException("Please do not call forceResolve() in a parallel region.");
1715            }
1716            #endif
1717            resolve();
1718        }
1719      }
1720    
1721      /**
1722      \brief if another object is sharing out member data make a copy to work with instead.
1723      This code should only be called from single threaded sections of code.
1724      */
1725      void exclusiveWrite()
1726      {
1727    #ifdef _OPENMP
1728      if (omp_in_parallel())
1729      {
1730    // *((int*)0)=17;
1731        throw DataException("Programming error. Please do not run exclusiveWrite() in multi-threaded sections.");
1732      }
1733    #endif
1734        forceResolve();
1735        if (isShared())
1736        {
1737            DataAbstract* t=m_data->deepCopy();
1738            set_m_data(DataAbstract_ptr(t));
1739        }
1740    }    }
1741    
1742      /**
1743      \brief checks if caller can have exclusive write to the object
1744      */
1745      void checkExclusiveWrite()
1746      {
1747        if  (isLazy() || isShared())
1748        {
1749            throw DataException("Programming error. ExclusiveWrite required - please call requireWrite()");
1750        }
1751      }
1752    
1753      /**
1754      \brief Modify the data abstract hosted by this Data object
1755      For internal use only.
1756      Passing a pointer to null is permitted (do this in the destructor)
1757      \warning Only to be called in single threaded code or inside a single/critical section. This method needs to be atomic.
1758      */
1759      void set_m_data(DataAbstract_ptr p);
1760    
1761      friend class DataAbstract;        // To allow calls to updateShareStatus
1762    
1763    };
1764    
1765    }   // end namespace escript
1766    
1767    
1768    // No, this is not supposed to be at the top of the file
1769    // DataAbstact needs to be declared first, then DataReady needs to be fully declared
1770    // so that I can dynamic cast between them below.
1771    #include "DataReady.h"
1772    #include "DataLazy.h"
1773    
1774    namespace escript
1775    {
1776    
1777    inline
1778    const DataReady*
1779    Data::getReady() const
1780    {
1781       const DataReady* dr=dynamic_cast<const DataReady*>(m_data.get());
1782       EsysAssert((dr!=0), "Error - casting to DataReady.");
1783       return dr;
1784    }
1785    
1786    inline
1787    DataReady*
1788    Data::getReady()
1789    {
1790       DataReady* dr=dynamic_cast<DataReady*>(m_data.get());
1791       EsysAssert((dr!=0), "Error - casting to DataReady.");
1792       return dr;
1793    }
1794    
1795    // Be wary of using this for local operations since it (temporarily) increases reference count.
1796    // If you are just using this to call a method on DataReady instead of DataAbstract consider using
1797    // getReady() instead
1798    inline
1799    DataReady_ptr
1800    Data::getReadyPtr()
1801    {
1802       DataReady_ptr dr=boost::dynamic_pointer_cast<DataReady>(m_data);
1803       EsysAssert((dr.get()!=0), "Error - casting to DataReady.");
1804       return dr;
1805    }
1806    
1807    
1808    inline
1809    const_DataReady_ptr
1810    Data::getReadyPtr() const
1811    {
1812       const_DataReady_ptr dr=boost::dynamic_pointer_cast<const DataReady>(m_data);
1813       EsysAssert((dr.get()!=0), "Error - casting to DataReady.");
1814       return dr;
1815    }
1816    
1817    inline
1818    DataAbstract::ValueType::value_type*
1819    Data::getSampleDataRW(DataAbstract::ValueType::size_type sampleNo)
1820    {
1821       if (isLazy())
1822       {
1823        throw DataException("Error, attempt to acquire RW access to lazy data. Please call requireWrite() first.");
1824       }
1825       return getReady()->getSampleDataRW(sampleNo);
1826    }
1827    
1828    inline
1829    const DataAbstract::ValueType::value_type*
1830    Data::getSampleDataRO(DataAbstract::ValueType::size_type sampleNo, BufferGroup* bufferg)
1831    {
1832       DataLazy* l=dynamic_cast<DataLazy*>(m_data.get());
1833       if (l!=0)
1834       {
1835        size_t offset=0;
1836        if (bufferg==NULL)
1837        {
1838            throw DataException("Error, attempt to getSampleDataRO for lazy Data with buffer==NULL");
1839        }
1840        const DataTypes::ValueType* res=l->resolveSample(*bufferg,sampleNo,offset);
1841        return &((*res)[offset]);
1842       }
1843       return getReady()->getSampleDataRO(sampleNo);
1844  }  }
1845    
1846    
1847    
1848    /**
1849       Modify a filename for MPI parallel output to multiple files
1850    */
1851    char *Escript_MPI_appendRankToFileName(const char *, int, int);
1852    
1853  /**  /**
1854     Binary Data object operators.     Binary Data object operators.
1855  */  */
1856    inline double rpow(double x,double y)
1857    {
1858        return pow(y,x);
1859    }
1860    
1861  /**  /**
1862    \brief    \brief
1863    Operator+    Operator+
1864    Takes two Data objects.    Takes two Data objects.
1865  */  */
1866  Data operator+(const Data& left, const Data& right);  ESCRIPT_DLL_API Data operator+(const Data& left, const Data& right);
1867    
1868  /**  /**
1869    \brief    \brief
1870    Operator-    Operator-
1871    Takes two Data objects.    Takes two Data objects.
1872  */  */
1873  Data operator-(const Data& left, const Data& right);  ESCRIPT_DLL_API Data operator-(const Data& left, const Data& right);
1874    
1875  /**  /**
1876    \brief    \brief
1877    Operator*    Operator*
1878    Takes two Data objects.    Takes two Data objects.
1879  */  */
1880  Data operator*(const Data& left, const Data& right);  ESCRIPT_DLL_API Data operator*(const Data& left, const Data& right);
1881    
1882  /**  /**
1883    \brief    \brief
1884    Operator/    Operator/
1885    Takes two Data objects.    Takes two Data objects.
1886  */  */
1887  Data operator/(const Data& left, const Data& right);  ESCRIPT_DLL_API Data operator/(const Data& left, const Data& right);
1888    
1889  /**  /**
1890    \brief    \brief
# Line 957  Data operator/(const Data& left, const D Line 1892  Data operator/(const Data& left, const D
1892    Takes LHS Data object and RHS python::object.    Takes LHS Data object and RHS python::object.
1893    python::object must be convertable to Data type.    python::object must be convertable to Data type.
1894  */  */
1895  Data operator+(const Data& left, const boost::python::object& right);  ESCRIPT_DLL_API Data operator+(const Data& left, const boost::python::object& right);
1896    
1897  /**  /**
1898    \brief    \brief
# Line 965  Data operator+(const Data& left, const b Line 1900  Data operator+(const Data& left, const b
1900    Takes LHS Data object and RHS python::object.    Takes LHS Data object and RHS python::object.
1901    python::object must be convertable to Data type.    python::object must be convertable to Data type.
1902  */  */
1903  Data operator-(const Data& left, const boost::python::object& right);  ESCRIPT_DLL_API Data operator-(const Data& left, const boost::python::object& right);
1904    
1905  /**  /**
1906    \brief    \brief
# Line 973  Data operator-(const Data& left, const b Line 1908  Data operator-(const Data& left, const b
1908    Takes LHS Data object and RHS python::object.    Takes LHS Data object and RHS python::object.
1909    python::object must be convertable to Data type.    python::object must be convertable to Data type.
1910  */  */
1911  Data operator*(const Data& left, const boost::python::object& right);  ESCRIPT_DLL_API Data operator*(const Data& left, const boost::python::object& right);
1912    
1913  /**  /**
1914    \brief    \brief
# Line 981  Data operator*(const Data& left, const b Line 1916  Data operator*(const Data& left, const b
1916    Takes LHS Data object and RHS python::object.    Takes LHS Data object and RHS python::object.
1917    python::object must be convertable to Data type.    python::object must be convertable to Data type.
1918  */  */
1919  Data operator/(const Data& left, const boost::python::object& right);  ESCRIPT_DLL_API Data operator/(const Data& left, const boost::python::object& right);
1920    
1921  /**  /**
1922    \brief    \brief
# Line 989  Data operator/(const Data& left, const b Line 1924  Data operator/(const Data& left, const b
1924    Takes LHS python::object and RHS Data object.    Takes LHS python::object and RHS Data object.
1925    python::object must be convertable to Data type.    python::object must be convertable to Data type.
1926  */  */
1927  Data operator+(const boost::python::object& left, const Data& right);  ESCRIPT_DLL_API Data operator+(const boost::python::object& left, const Data& right);
1928    
1929  /**  /**
1930    \brief    \brief
# Line 997  Data operator+(const boost::python::obje Line 1932  Data operator+(const boost::python::obje
1932    Takes LHS python::object and RHS Data object.    Takes LHS python::object and RHS Data object.
1933    python::object must be convertable to Data type.    python::object must be convertable to Data type.
1934  */  */
1935  Data operator-(const boost::python::object& left, const Data& right);  ESCRIPT_DLL_API Data operator-(const boost::python::object& left, const Data& right);
1936    
1937  /**  /**
1938    \brief    \brief
# Line 1005  Data operator-(const boost::python::obje Line 1940  Data operator-(const boost::python::obje
1940    Takes LHS python::object and RHS Data object.    Takes LHS python::object and RHS Data object.
1941    python::object must be convertable to Data type.    python::object must be convertable to Data type.
1942  */  */
1943  Data operator*(const boost::python::object& left, const Data& right);  ESCRIPT_DLL_API Data operator*(const boost::python::object& left, const Data& right);
1944    
1945  /**  /**
1946    \brief    \brief
# Line 1013  Data operator*(const boost::python::obje Line 1948  Data operator*(const boost::python::obje
1948    Takes LHS python::object and RHS Data object.    Takes LHS python::object and RHS Data object.
1949    python::object must be convertable to Data type.    python::object must be convertable to Data type.
1950  */  */
1951  Data operator/(const boost::python::object& left, const Data& right);  ESCRIPT_DLL_API Data operator/(const boost::python::object& left, const Data& right);
1952    
1953    
1954    
1955  /**  /**
1956    \brief    \brief
1957    Output operator    Output operator
1958  */  */
1959  std::ostream& operator<<(std::ostream& o, const Data& data);  ESCRIPT_DLL_API std::ostream& operator<<(std::ostream& o, const Data& data);
1960    
1961  /**  /**
1962    \brief    \brief
1963    Return true if operands are equivalent, else return false.    Compute a tensor product of two Data objects
1964    NB: this operator does very little at this point, and isn't to    \param arg_0 - Input - Data object
1965    be relied on. Requires further implementation.    \param arg_1 - Input - Data object
1966      \param axis_offset - Input - axis offset
1967      \param transpose - Input - 0: transpose neither, 1: transpose arg0, 2: transpose arg1
1968  */  */
1969  //bool operator==(const Data& left, const Data& right);  ESCRIPT_DLL_API
1970    Data
1971    C_GeneralTensorProduct(Data& arg_0,
1972                         Data& arg_1,
1973                         int axis_offset=0,
1974                         int transpose=0);
1975    
1976  /**  /**
1977    \brief    \brief
# Line 1042  Data::binaryOp(const Data& right, Line 1986  Data::binaryOp(const Data& right,
1986  {  {
1987     //     //
1988     // if this has a rank of zero promote it to the rank of the RHS     // if this has a rank of zero promote it to the rank of the RHS
1989     if (getPointDataView().getRank()==0 && right.getPointDataView().getRank()!=0) {     if (getDataPointRank()==0 && right.getDataPointRank()!=0) {
1990       reshapeDataPoint(right.getPointDataView().getShape());       throw DataException("Error - attempt to update rank zero object with object with rank bigger than zero.");
1991       }
1992    
1993       if (isLazy() || right.isLazy())
1994       {
1995         throw DataException("Programmer error - attempt to call binaryOp with Lazy Data.");
1996     }     }
1997     //     //
1998     // initially make the temporary a shallow copy     // initially make the temporary a shallow copy
1999     Data tempRight(right);     Data tempRight(right);
2000    
2001     if (getFunctionSpace()!=right.getFunctionSpace()) {     if (getFunctionSpace()!=right.getFunctionSpace()) {
2002       if (right.probeInterpolation(getFunctionSpace())) {       if (right.probeInterpolation(getFunctionSpace())) {
2003         //         //
2004         // an interpolation is required so create a new Data         // an interpolation is required so create a new Data
2005         tempRight=Data(right,this->getFunctionSpace());         tempRight=Data(right,this->getFunctionSpace());
2006       } else if (probeInterpolation(right.getFunctionSpace())) {       } else if (probeInterpolation(right.getFunctionSpace())) {
2007         //         //
2008         // interpolate onto the RHS function space         // interpolate onto the RHS function space
2009         Data tempLeft(*this,right.getFunctionSpace());         Data tempLeft(*this,right.getFunctionSpace());
2010         m_data=tempLeft.m_data;  //        m_data=tempLeft.m_data;
2011           set_m_data(tempLeft.m_data);
2012       }       }
2013     }     }
2014     operandCheck(tempRight);     operandCheck(tempRight);
# Line 1073  Data::binaryOp(const Data& right, Line 2024  Data::binaryOp(const Data& right,
2024       // of any data type       // of any data type
2025       DataExpanded* leftC=dynamic_cast<DataExpanded*>(m_data.get());       DataExpanded* leftC=dynamic_cast<DataExpanded*>(m_data.get());
2026       EsysAssert((leftC!=0), "Programming error - casting to DataExpanded.");       EsysAssert((leftC!=0), "Programming error - casting to DataExpanded.");
2027       escript::binaryOp(*leftC,*(tempRight.m_data.get()),operation);       escript::binaryOp(*leftC,*(tempRight.getReady()),operation);
2028     } else if (isTagged()) {     } else if (isTagged()) {
2029       //       //
2030       // Tagged data is operated on serially, the right hand side can be       // Tagged data is operated on serially, the right hand side can be
# Line 1099  Data::binaryOp(const Data& right, Line 2050  Data::binaryOp(const Data& right,
2050    
2051  /**  /**
2052    \brief    \brief
   Perform the given binary operation with this and right as operands.  
   Right is a boost::python object.  
 */  
 template <class BinaryFunction>  
 inline  
 void  
 Data::binaryOp(const boost::python::object& right,  
                BinaryFunction operation)  
 {  
    DataArray temp(right);  
    //  
    // if this has a rank of zero promote it to the rank of the RHS.  
    if (getPointDataView().getRank()==0 && temp.getView().getRank()!=0) {  
       reshapeDataPoint(temp.getView().getShape());  
    }  
    //  
    // Always allow scalar values for the RHS but check other shapes  
    if (temp.getView().getRank()!=0) {  
      if (!getPointDataView().checkShape(temp.getView().getShape())) {  
        throw DataException(getPointDataView().createShapeErrorMessage(  
                   "Error - RHS shape doesn't match LHS shape.",temp.getView().getShape()));  
      }  
    }  
    if (isExpanded()) {  
      DataExpanded* leftC=dynamic_cast<DataExpanded*>(m_data.get());  
      EsysAssert((leftC!=0),"Programming error - casting to DataExpanded.");  
      escript::binaryOp(*leftC,temp.getView(),operation);  
    } else if (isTagged()) {  
      DataTagged* leftC=dynamic_cast<DataTagged*>(m_data.get());  
      EsysAssert((leftC!=0), "Programming error - casting to DataTagged.");  
      escript::binaryOp(*leftC,temp.getView(),operation);  
    } else if (isConstant()) {  
      DataConstant* leftC=dynamic_cast<DataConstant*>(m_data.get());  
      EsysAssert((leftC!=0),"Programming error - casting to DataConstant.");  
      escript::binaryOp(*leftC,temp.getView(),operation);  
    }  
 }  
   
 /**  
   \brief  
   Perform the given unary operation on other and return the result.  
   Given operation is performed on each element of each data point, thus  
   argument object is a rank n Data object, and returned object is a rank n  
   Data object.  
   Calls Data::unaryOp.  
 */  
 template <class UnaryFunction>  
 inline  
 Data  
 unaryOp(const Data& other,  
         UnaryFunction operation)  
 {  
   Data result;  
   result.copy(other);  
   result.unaryOp(operation);  
   return result;  
 }  
   
 /**  
   \brief  
   Perform the given unary operation on this.  
   Given operation is performed on each element of each data point.  
   Calls escript::unaryOp.  
 */  
 template <class UnaryFunction>  
 inline  
 void  
 Data::unaryOp(UnaryFunction operation)  
 {  
   if (isExpanded()) {  
     DataExpanded* leftC=dynamic_cast<DataExpanded*>(m_data.get());  
     EsysAssert((leftC!=0), "Programming error - casting to DataExpanded.");  
     escript::unaryOp(*leftC,operation);  
   } else if (isTagged()) {  
     DataTagged* leftC=dynamic_cast<DataTagged*>(m_data.get());  
     EsysAssert((leftC!=0), "Programming error - casting to DataTagged.");  
     escript::unaryOp(*leftC,operation);  
   } else if (isConstant()) {  
     DataConstant* leftC=dynamic_cast<DataConstant*>(m_data.get());  
     EsysAssert((leftC!=0), "Programming error - casting to DataConstant.");  
     escript::unaryOp(*leftC,operation);  
   }  
 }  
   
 /**  
   \brief  
2053    Perform the given Data object reduction algorithm on this and return the result.    Perform the given Data object reduction algorithm on this and return the result.
2054    Given operation combines each element of each data point, thus argument    Given operation combines each element of each data point, thus argument
2055    object (*this) is a rank n Data object, and returned object is a scalar.    object (*this) is a rank n Data object, and returned object is a scalar.
2056    Calls escript::algorithm.    Calls escript::algorithm.
2057  */  */
2058  template <class UnaryFunction>  template <class BinaryFunction>
2059  inline  inline
2060  double  double
2061  Data::algorithm(UnaryFunction operation) const  Data::algorithm(BinaryFunction operation, double initial_value) const
2062  {  {
2063    if (isExpanded()) {    if (isExpanded()) {
2064      DataExpanded* leftC=dynamic_cast<DataExpanded*>(m_data.get());      DataExpanded* leftC=dynamic_cast<DataExpanded*>(m_data.get());
2065      EsysAssert((leftC!=0), "Programming error - casting to DataExpanded.");      EsysAssert((leftC!=0), "Programming error - casting to DataExpanded.");
2066      return escript::algorithm(*leftC,operation);      return escript::algorithm(*leftC,operation,initial_value);
2067    } else if (isTagged()) {    } else if (isTagged()) {
2068      DataTagged* leftC=dynamic_cast<DataTagged*>(m_data.get());      DataTagged* leftC=dynamic_cast<DataTagged*>(m_data.get());
2069      EsysAssert((leftC!=0), "Programming error - casting to DataTagged.");      EsysAssert((leftC!=0), "Programming error - casting to DataTagged.");
2070      return escript::algorithm(*leftC,operation);      return escript::algorithm(*leftC,operation,initial_value);
2071    } else if (isConstant()) {    } else if (isConstant()) {
2072      DataConstant* leftC=dynamic_cast<DataConstant*>(m_data.get());      DataConstant* leftC=dynamic_cast<DataConstant*>(m_data.get());
2073      EsysAssert((leftC!=0), "Programming error - casting to DataConstant.");      EsysAssert((leftC!=0), "Programming error - casting to DataConstant.");
2074      return escript::algorithm(*leftC,operation);      return escript::algorithm(*leftC,operation,initial_value);
2075      } else if (isEmpty()) {
2076        throw DataException("Error - Operations not permitted on instances of DataEmpty.");
2077      } else if (isLazy()) {
2078        throw DataException("Error - Operations not permitted on instances of DataLazy.");
2079      } else {
2080        throw DataException("Error - Data encapsulates an unknown type.");
2081    }    }
   return 0;  
2082  }  }
2083    
2084  /**  /**
2085    \brief    \brief
2086    Perform the given data point reduction algorithm on data and return the result.    Perform the given data point reduction algorithm on data and return the result.
2087    Given operation combines each element within each data point into a scalar,    Given operation combines each element within each data point into a scalar,
2088    thus argument object is a rank n Data object, and returned object is a    thus argument object is a rank n Data object, and returned object is a
2089    rank 0 Data object.    rank 0 Data object.
2090    Calls escript::dp_algorithm.    Calls escript::dp_algorithm.
2091  */  */
2092  template <class UnaryFunction>  template <class BinaryFunction>
2093  inline  inline
2094  Data  Data
2095  dp_algorithm(const Data& data,  Data::dp_algorithm(BinaryFunction operation, double initial_value) const
              UnaryFunction operation)  
2096  {  {
2097    Data result(0,DataArrayView::ShapeType(),data.getFunctionSpace(),data.isExpanded());    if (isEmpty()) {
2098    if (data.isExpanded()) {      throw DataException("Error - Operations not permitted on instances of DataEmpty.");
2099      DataExpanded* dataE=dynamic_cast<DataExpanded*>(data.m_data.get());    }
2100      else if (isExpanded()) {
2101        Data result(0,DataTypes::ShapeType(),getFunctionSpace(),isExpanded());
2102        DataExpanded* dataE=dynamic_cast<DataExpanded*>(m_data.get());
2103      DataExpanded* resultE=dynamic_cast<DataExpanded*>(result.m_data.get());      DataExpanded* resultE=dynamic_cast<DataExpanded*>(result.m_data.get());
2104      EsysAssert((dataE!=0), "Programming error - casting data to DataExpanded.");      EsysAssert((dataE!=0), "Programming error - casting data to DataExpanded.");
2105      EsysAssert((resultE!=0), "Programming error - casting result to DataExpanded.");      EsysAssert((resultE!=0), "Programming error - casting result to DataExpanded.");
2106      escript::dp_algorithm(*dataE,*resultE,operation);      escript::dp_algorithm(*dataE,*resultE,operation,initial_value);
2107    } else if (data.isTagged()) {      return result;
2108      DataTagged* dataT=dynamic_cast<DataTagged*>(data.m_data.get());    }
2109      DataTagged* resultT=dynamic_cast<DataTagged*>(result.m_data.get());    else if (isTagged()) {
2110        DataTagged* dataT=dynamic_cast<DataTagged*>(m_data.get());
2111      EsysAssert((dataT!=0), "Programming error - casting data to DataTagged.");      EsysAssert((dataT!=0), "Programming error - casting data to DataTagged.");
2112      EsysAssert((resultT!=0), "Programming error - casting result to DataTagged.");      DataTypes::ValueType defval(1);
2113      escript::dp_algorithm(*dataT,*resultT,operation);      defval[0]=0;
2114    } else if (data.isConstant()) {      DataTagged* resultT=new DataTagged(getFunctionSpace(), DataTypes::scalarShape, defval, dataT);
2115      DataConstant* dataC=dynamic_cast<DataConstant*>(data.m_data.get());      escript::dp_algorithm(*dataT,*resultT,operation,initial_value);
2116        return Data(resultT);   // note: the Data object now owns the resultT pointer
2117      }
2118      else if (isConstant()) {
2119        Data result(0,DataTypes::ShapeType(),getFunctionSpace(),isExpanded());
2120        DataConstant* dataC=dynamic_cast<DataConstant*>(m_data.get());
2121      DataConstant* resultC=dynamic_cast<DataConstant*>(result.m_data.get());      DataConstant* resultC=dynamic_cast<DataConstant*>(result.m_data.get());
2122      EsysAssert((dataC!=0), "Programming error - casting data to DataConstant.");      EsysAssert((dataC!=0), "Programming error - casting data to DataConstant.");
2123      EsysAssert((resultC!=0), "Programming error - casting result to DataConstant.");      EsysAssert((resultC!=0), "Programming error - casting result to DataConstant.");
2124      escript::dp_algorithm(*dataC,*resultC,operation);      escript::dp_algorithm(*dataC,*resultC,operation,initial_value);
2125        return result;
2126      } else if (isLazy()) {
2127        throw DataException("Error - Operations not permitted on instances of DataLazy.");
2128      } else {
2129        throw DataException("Error - Data encapsulates an unknown type.");
2130    }    }
2131    return result;  }
2132    
2133    /**
2134      \brief
2135      Compute a tensor operation with two Data objects
2136      \param arg_0 - Input - Data object
2137      \param arg_1 - Input - Data object
2138      \param operation - Input - Binary op functor
2139    */
2140    template <typename BinaryFunction>
2141    inline
2142    Data
2143    C_TensorBinaryOperation(Data const &arg_0,
2144                            Data const &arg_1,
2145                            BinaryFunction operation)
2146    {
2147      if (arg_0.isEmpty() || arg_1.isEmpty())
2148      {
2149         throw DataException("Error - Operations not permitted on instances of DataEmpty.");
2150      }
2151      if (arg_0.isLazy() || arg_1.isLazy())
2152      {
2153         throw DataException("Error - Operations not permitted on lazy data.");
2154      }
2155      // Interpolate if necessary and find an appropriate function space
2156      Data arg_0_Z, arg_1_Z;
2157      if (arg_0.getFunctionSpace()!=arg_1.getFunctionSpace()) {
2158        if (arg_0.probeInterpolation(arg_1.getFunctionSpace())) {
2159          arg_0_Z = arg_0.interpolate(arg_1.getFunctionSpace());
2160          arg_1_Z = Data(arg_1);
2161        }
2162        else if (arg_1.probeInterpolation(arg_0.getFunctionSpace())) {
2163          arg_1_Z=arg_1.interpolate(arg_0.getFunctionSpace());
2164          arg_0_Z =Data(arg_0);
2165        }
2166        else {
2167          throw DataException("Error - C_TensorBinaryOperation: arguments have incompatible function spaces.");
2168        }
2169      } else {
2170          arg_0_Z = Data(arg_0);
2171          arg_1_Z = Data(arg_1);
2172      }
2173      // Get rank and shape of inputs
2174      int rank0 = arg_0_Z.getDataPointRank();
2175      int rank1 = arg_1_Z.getDataPointRank();
2176      DataTypes::ShapeType shape0 = arg_0_Z.getDataPointShape();
2177      DataTypes::ShapeType shape1 = arg_1_Z.getDataPointShape();
2178      int size0 = arg_0_Z.getDataPointSize();
2179      int size1 = arg_1_Z.getDataPointSize();
2180      // Declare output Data object
2181      Data res;
2182    
2183      if (shape0 == shape1) {
2184        if (arg_0_Z.isConstant()   && arg_1_Z.isConstant()) {
2185          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace());      // DataConstant output
2186          const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(0));
2187          const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(0));
2188          double *ptr_2 = &(res.getDataAtOffsetRW(0));
2189    
2190          tensor_binary_operation(size0, ptr_0, ptr_1, ptr_2, operation);
2191        }
2192        else if (arg_0_Z.isConstant()   && arg_1_Z.isTagged()) {
2193    
2194          // Prepare the DataConstant input
2195          DataConstant* tmp_0=dynamic_cast<DataConstant*>(arg_0_Z.borrowData());
2196    
2197          // Borrow DataTagged input from Data object
2198          DataTagged* tmp_1=dynamic_cast<DataTagged*>(arg_1_Z.borrowData());
2199    
2200          // Prepare a DataTagged output 2
2201          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace());      // DataTagged output
2202          res.tag();
2203          DataTagged* tmp_2=dynamic_cast<DataTagged*>(res.borrowData());
2204    
2205          // Prepare offset into DataConstant
2206          int offset_0 = tmp_0->getPointOffset(0,0);
2207          const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2208    
2209          // Get the pointers to the actual data
2210          const double *ptr_1 = &(tmp_1->getDefaultValueRO(0));
2211          double *ptr_2 = &(tmp_2->getDefaultValueRW(0));
2212    
2213          // Compute a result for the default
2214          tensor_binary_operation(size0, ptr_0, ptr_1, ptr_2, operation);
2215          // Compute a result for each tag
2216          const DataTagged::DataMapType& lookup_1=tmp_1->getTagLookup();
2217          DataTagged::DataMapType::const_iterator i; // i->first is a tag, i->second is an offset into memory
2218          for (i=lookup_1.begin();i!=lookup_1.end();i++) {
2219            tmp_2->addTag(i->first);
2220            const double *ptr_1 = &(tmp_1->getDataByTagRO(i->first,0));
2221            double *ptr_2 = &(tmp_2->getDataByTagRW(i->first,0));
2222    
2223            tensor_binary_operation(size0, ptr_0, ptr_1, ptr_2, operation);
2224          }
2225    
2226        }
2227        else if (arg_0_Z.isConstant()   && arg_1_Z.isExpanded()) {
2228          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2229          DataConstant* tmp_0=dynamic_cast<DataConstant*>(arg_0_Z.borrowData());
2230          DataExpanded* tmp_1=dynamic_cast<DataExpanded*>(arg_1_Z.borrowData());
2231          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2232    
2233          int sampleNo_1,dataPointNo_1;
2234          int numSamples_1 = arg_1_Z.getNumSamples();
2235          int numDataPointsPerSample_1 = arg_1_Z.getNumDataPointsPerSample();
2236          int offset_0 = tmp_0->getPointOffset(0,0);
2237          res.requireWrite();
2238          #pragma omp parallel for private(sampleNo_1,dataPointNo_1) schedule(static)
2239          for (sampleNo_1 = 0; sampleNo_1 < numSamples_1; sampleNo_1++) {
2240            for (dataPointNo_1 = 0; dataPointNo_1 < numDataPointsPerSample_1; dataPointNo_1++) {
2241              int offset_1 = tmp_1->getPointOffset(sampleNo_1,dataPointNo_1);
2242              int offset_2 = tmp_2->getPointOffset(sampleNo_1,dataPointNo_1);
2243              const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2244              const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2245              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2246              tensor_binary_operation(size0, ptr_0, ptr_1, ptr_2, operation);
2247            }
2248          }
2249    
2250        }
2251        else if (arg_0_Z.isTagged()     && arg_1_Z.isConstant()) {
2252          // Borrow DataTagged input from Data object
2253          DataTagged* tmp_0=dynamic_cast<DataTagged*>(arg_0_Z.borrowData());
2254    
2255          // Prepare the DataConstant input
2256          DataConstant* tmp_1=dynamic_cast<DataConstant*>(arg_1_Z.borrowData());
2257    
2258          // Prepare a DataTagged output 2
2259          res = Data(0.0, shape0, arg_0_Z.getFunctionSpace());      // DataTagged output
2260          res.tag();
2261          DataTagged* tmp_2=dynamic_cast<DataTagged*>(res.borrowData());
2262    
2263          // Prepare offset into DataConstant
2264          int offset_1 = tmp_1->getPointOffset(0,0);
2265    
2266          const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2267          // Get the pointers to the actual data
2268          const double *ptr_0 = &(tmp_0->getDefaultValueRO(0));
2269          double *ptr_2 = &(tmp_2->getDefaultValueRW(0));
2270          // Compute a result for the default
2271          tensor_binary_operation(size0, ptr_0, ptr_1, ptr_2, operation);
2272          // Compute a result for each tag
2273          const DataTagged::DataMapType& lookup_0=tmp_0->getTagLookup();
2274          DataTagged::DataMapType::const_iterator i; // i->first is a tag, i->second is an offset into memory
2275          for (i=lookup_0.begin();i!=lookup_0.end();i++) {
2276            tmp_2->addTag(i->first);
2277            const double *ptr_0 = &(tmp_0->getDataByTagRO(i->first,0));
2278            double *ptr_2 = &(tmp_2->getDataByTagRW(i->first,0));
2279            tensor_binary_operation(size0, ptr_0, ptr_1, ptr_2, operation);
2280          }
2281    
2282        }
2283        else if (arg_0_Z.isTagged()     && arg_1_Z.isTagged()) {
2284          // Borrow DataTagged input from Data object
2285          DataTagged* tmp_0=dynamic_cast<DataTagged*>(arg_0_Z.borrowData());
2286    
2287          // Borrow DataTagged input from Data object
2288          DataTagged* tmp_1=dynamic_cast<DataTagged*>(arg_1_Z.borrowData());
2289    
2290          // Prepare a DataTagged output 2
2291          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace());
2292          res.tag();        // DataTagged output
2293          DataTagged* tmp_2=dynamic_cast<DataTagged*>(res.borrowData());
2294    
2295          // Get the pointers to the actual data
2296          const double *ptr_0 = &(tmp_0->getDefaultValueRO(0));
2297          const double *ptr_1 = &(tmp_1->getDefaultValueRO(0));
2298          double *ptr_2 = &(tmp_2->getDefaultValueRW(0));
2299    
2300          // Compute a result for the default
2301          tensor_binary_operation(size0, ptr_0, ptr_1, ptr_2, operation);
2302          // Merge the tags
2303          DataTagged::DataMapType::const_iterator i; // i->first is a tag, i->second is an offset into memory
2304          const DataTagged::DataMapType& lookup_0=tmp_0->getTagLookup();
2305          const DataTagged::DataMapType& lookup_1=tmp_1->getTagLookup();
2306          for (i=lookup_0.begin();i!=lookup_0.end();i++) {
2307            tmp_2->addTag(i->first); // use tmp_2 to get correct shape
2308          }
2309          for (i=lookup_1.begin();i!=lookup_1.end();i++) {
2310            tmp_2->addTag(i->first);
2311          }
2312          // Compute a result for each tag
2313          const DataTagged::DataMapType& lookup_2=tmp_2->getTagLookup();
2314          for (i=lookup_2.begin();i!=lookup_2.end();i++) {
2315    
2316            const double *ptr_0 = &(tmp_0->getDataByTagRO(i->first,0));
2317            const double *ptr_1 = &(tmp_1->getDataByTagRO(i->first,0));
2318            double *ptr_2 = &(tmp_2->getDataByTagRW(i->first,0));
2319    
2320            tensor_binary_operation(size0, ptr_0, ptr_1, ptr_2, operation);
2321          }
2322    
2323        }
2324        else if (arg_0_Z.isTagged()     && arg_1_Z.isExpanded()) {
2325          // After finding a common function space above the two inputs have the same numSamples and num DPPS
2326          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2327          DataTagged*   tmp_0=dynamic_cast<DataTagged*>(arg_0_Z.borrowData());
2328          DataExpanded* tmp_1=dynamic_cast<DataExpanded*>(arg_1_Z.borrowData());
2329          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2330    
2331          int sampleNo_0,dataPointNo_0;
2332          int numSamples_0 = arg_0_Z.getNumSamples();
2333          int numDataPointsPerSample_0 = arg_0_Z.getNumDataPointsPerSample();
2334          res.requireWrite();
2335          #pragma omp parallel for private(sampleNo_0,dataPointNo_0) schedule(static)
2336          for (sampleNo_0 = 0; sampleNo_0 < numSamples_0; sampleNo_0++) {
2337            int offset_0 = tmp_0->getPointOffset(sampleNo_0,0); // They're all the same, so just use #0
2338            const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2339            for (dataPointNo_0 = 0; dataPointNo_0 < numDataPointsPerSample_0; dataPointNo_0++) {
2340              int offset_1 = tmp_1->getPointOffset(sampleNo_0,dataPointNo_0);
2341              int offset_2 = tmp_2->getPointOffset(sampleNo_0,dataPointNo_0);
2342              const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2343              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2344              tensor_binary_operation(size0, ptr_0, ptr_1, ptr_2, operation);
2345            }
2346          }
2347    
2348        }
2349        else if (arg_0_Z.isExpanded()   && arg_1_Z.isConstant()) {
2350          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2351          DataExpanded* tmp_0=dynamic_cast<DataExpanded*>(arg_0_Z.borrowData());
2352          DataConstant* tmp_1=dynamic_cast<DataConstant*>(arg_1_Z.borrowData());
2353          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2354    
2355          int sampleNo_0,dataPointNo_0;
2356          int numSamples_0 = arg_0_Z.getNumSamples();
2357          int numDataPointsPerSample_0 = arg_0_Z.getNumDataPointsPerSample();
2358          int offset_1 = tmp_1->getPointOffset(0,0);
2359          res.requireWrite();
2360          #pragma omp parallel for private(sampleNo_0,dataPointNo_0) schedule(static)
2361          for (sampleNo_0 = 0; sampleNo_0 < numSamples_0; sampleNo_0++) {
2362            for (dataPointNo_0 = 0; dataPointNo_0 < numDataPointsPerSample_0; dataPointNo_0++) {
2363              int offset_0 = tmp_0->getPointOffset(sampleNo_0,dataPointNo_0);
2364              int offset_2 = tmp_2->getPointOffset(sampleNo_0,dataPointNo_0);
2365    
2366              const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2367              const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2368              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2369    
2370    
2371              tensor_binary_operation(size0, ptr_0, ptr_1, ptr_2, operation);
2372            }
2373          }
2374    
2375        }
2376        else if (arg_0_Z.isExpanded()   && arg_1_Z.isTagged()) {
2377          // After finding a common function space above the two inputs have the same numSamples and num DPPS
2378          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2379          DataExpanded* tmp_0=dynamic_cast<DataExpanded*>(arg_0_Z.borrowData());
2380          DataTagged*   tmp_1=dynamic_cast<DataTagged*>(arg_1_Z.borrowData());
2381          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2382    
2383          int sampleNo_0,dataPointNo_0;
2384          int numSamples_0 = arg_0_Z.getNumSamples();
2385          int numDataPointsPerSample_0 = arg_0_Z.getNumDataPointsPerSample();
2386          res.requireWrite();
2387          #pragma omp parallel for private(sampleNo_0,dataPointNo_0) schedule(static)
2388          for (sampleNo_0 = 0; sampleNo_0 < numSamples_0; sampleNo_0++) {
2389            int offset_1 = tmp_1->getPointOffset(sampleNo_0,0);
2390            const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2391            for (dataPointNo_0 = 0; dataPointNo_0 < numDataPointsPerSample_0; dataPointNo_0++) {
2392              int offset_0 = tmp_0->getPointOffset(sampleNo_0,dataPointNo_0);
2393              int offset_2 = tmp_2->getPointOffset(sampleNo_0,dataPointNo_0);
2394              const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2395              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2396              tensor_binary_operation(size0, ptr_0, ptr_1, ptr_2, operation);
2397            }
2398          }
2399    
2400        }
2401        else if (arg_0_Z.isExpanded()   && arg_1_Z.isExpanded()) {
2402          // After finding a common function space above the two inputs have the same numSamples and num DPPS
2403          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2404          DataExpanded* tmp_0=dynamic_cast<DataExpanded*>(arg_0_Z.borrowData());
2405          DataExpanded* tmp_1=dynamic_cast<DataExpanded*>(arg_1_Z.borrowData());
2406          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2407    
2408          int sampleNo_0,dataPointNo_0;
2409          int numSamples_0 = arg_0_Z.getNumSamples();
2410          int numDataPointsPerSample_0 = arg_0_Z.getNumDataPointsPerSample();
2411          res.requireWrite();
2412          #pragma omp parallel for private(sampleNo_0,dataPointNo_0) schedule(static)
2413          for (sampleNo_0 = 0; sampleNo_0 < numSamples_0; sampleNo_0++) {
2414          dataPointNo_0=0;
2415    //        for (dataPointNo_0 = 0; dataPointNo_0 < numDataPointsPerSample_0; dataPointNo_0++) {
2416              int offset_0 = tmp_0->getPointOffset(sampleNo_0,dataPointNo_0);
2417              int offset_1 = tmp_1->getPointOffset(sampleNo_0,dataPointNo_0);
2418              int offset_2 = tmp_2->getPointOffset(sampleNo_0,dataPointNo_0);
2419              const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2420              const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2421              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2422              tensor_binary_operation(size0*numDataPointsPerSample_0, ptr_0, ptr_1, ptr_2, operation);
2423    //       }
2424          }
2425    
2426        }
2427        else {
2428          throw DataException("Error - C_TensorBinaryOperation: unknown combination of inputs");
2429        }
2430    
2431      } else if (0 == rank0) {
2432        if (arg_0_Z.isConstant()   && arg_1_Z.isConstant()) {
2433          res = Data(0.0, shape1, arg_1_Z.getFunctionSpace());      // DataConstant output
2434          const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(0));
2435          const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(0));
2436          double *ptr_2 = &(res.getDataAtOffsetRW(0));
2437          tensor_binary_operation(size1, ptr_0[0], ptr_1, ptr_2, operation);
2438        }
2439        else if (arg_0_Z.isConstant()   && arg_1_Z.isTagged()) {
2440    
2441          // Prepare the DataConstant input
2442          DataConstant* tmp_0=dynamic_cast<DataConstant*>(arg_0_Z.borrowData());
2443    
2444          // Borrow DataTagged input from Data object
2445          DataTagged* tmp_1=dynamic_cast<DataTagged*>(arg_1_Z.borrowData());
2446    
2447          // Prepare a DataTagged output 2
2448          res = Data(0.0, shape1, arg_1_Z.getFunctionSpace());      // DataTagged output
2449          res.tag();
2450          DataTagged* tmp_2=dynamic_cast<DataTagged*>(res.borrowData());
2451    
2452          // Prepare offset into DataConstant
2453          int offset_0 = tmp_0->getPointOffset(0,0);
2454          const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2455    
2456          const double *ptr_1 = &(tmp_1->getDefaultValueRO(0));
2457          double *ptr_2 = &(tmp_2->getDefaultValueRW(0));
2458    
2459          // Compute a result for the default
2460          tensor_binary_operation(size1, ptr_0[0], ptr_1, ptr_2, operation);
2461          // Compute a result for each tag
2462          const DataTagged::DataMapType& lookup_1=tmp_1->getTagLookup();
2463          DataTagged::DataMapType::const_iterator i; // i->first is a tag, i->second is an offset into memory
2464          for (i=lookup_1.begin();i!=lookup_1.end();i++) {
2465            tmp_2->addTag(i->first);
2466            const double *ptr_1 = &(tmp_1->getDataByTagRO(i->first,0));
2467            double *ptr_2 = &(tmp_2->getDataByTagRW(i->first,0));
2468            tensor_binary_operation(size1, ptr_0[0], ptr_1, ptr_2, operation);
2469          }
2470    
2471        }
2472        else if (arg_0_Z.isConstant()   && arg_1_Z.isExpanded()) {
2473    
2474          res = Data(0.0, shape1, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2475          DataConstant* tmp_0=dynamic_cast<DataConstant*>(arg_0_Z.borrowData());
2476          DataExpanded* tmp_1=dynamic_cast<DataExpanded*>(arg_1_Z.borrowData());
2477          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2478    
2479          int sampleNo_1,dataPointNo_1;
2480          int numSamples_1 = arg_1_Z.getNumSamples();
2481          int numDataPointsPerSample_1 = arg_1_Z.getNumDataPointsPerSample();
2482          int offset_0 = tmp_0->getPointOffset(0,0);
2483          res.requireWrite();
2484          #pragma omp parallel for private(sampleNo_1,dataPointNo_1) schedule(static)
2485          for (sampleNo_1 = 0; sampleNo_1 < numSamples_1; sampleNo_1++) {
2486            for (dataPointNo_1 = 0; dataPointNo_1 < numDataPointsPerSample_1; dataPointNo_1++) {
2487              int offset_1 = tmp_1->getPointOffset(sampleNo_1,dataPointNo_1);
2488              int offset_2 = tmp_2->getPointOffset(sampleNo_1,dataPointNo_1);
2489              const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2490              const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2491              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2492              tensor_binary_operation(size1, ptr_0[0], ptr_1, ptr_2, operation);
2493    
2494            }
2495          }
2496    
2497        }
2498        else if (arg_0_Z.isTagged()     && arg_1_Z.isConstant()) {
2499    
2500          // Borrow DataTagged input from Data object
2501          DataTagged* tmp_0=dynamic_cast<DataTagged*>(arg_0_Z.borrowData());
2502    
2503          // Prepare the DataConstant input
2504          DataConstant* tmp_1=dynamic_cast<DataConstant*>(arg_1_Z.borrowData());
2505    
2506          // Prepare a DataTagged output 2
2507          res = Data(0.0, shape1, arg_0_Z.getFunctionSpace());      // DataTagged output
2508          res.tag();
2509          DataTagged* tmp_2=dynamic_cast<DataTagged*>(res.borrowData());
2510    
2511          // Prepare offset into DataConstant
2512          int offset_1 = tmp_1->getPointOffset(0,0);
2513          const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2514    
2515          // Get the pointers to the actual data
2516          const double *ptr_0 = &(tmp_0->getDefaultValueRO(0));
2517          double *ptr_2 = &(tmp_2->getDefaultValueRW(0));
2518    
2519    
2520          // Compute a result for the default
2521          tensor_binary_operation(size1, ptr_0[0], ptr_1, ptr_2, operation);
2522          // Compute a result for each tag
2523          const DataTagged::DataMapType& lookup_0=tmp_0->getTagLookup();
2524          DataTagged::DataMapType::const_iterator i; // i->first is a tag, i->second is an offset into memory
2525          for (i=lookup_0.begin();i!=lookup_0.end();i++) {
2526            tmp_2->addTag(i->first);
2527            const double *ptr_0 = &(tmp_0->getDataByTagRO(i->first,0));
2528            double *ptr_2 = &(tmp_2->getDataByTagRW(i->first,0));
2529    
2530            tensor_binary_operation(size1, ptr_0[0], ptr_1, ptr_2, operation);
2531          }
2532    
2533        }
2534        else if (arg_0_Z.isTagged()     && arg_1_Z.isTagged()) {
2535    
2536          // Borrow DataTagged input from Data object
2537          DataTagged* tmp_0=dynamic_cast<DataTagged*>(arg_0_Z.borrowData());
2538    
2539          // Borrow DataTagged input from Data object
2540          DataTagged* tmp_1=dynamic_cast<DataTagged*>(arg_1_Z.borrowData());
2541    
2542          // Prepare a DataTagged output 2
2543          res = Data(0.0, shape1, arg_1_Z.getFunctionSpace());
2544          res.tag();        // DataTagged output
2545          DataTagged* tmp_2=dynamic_cast<DataTagged*>(res.borrowData());
2546    
2547          // Get the pointers to the actual data
2548          const double *ptr_0 = &(tmp_0->getDefaultValueRO(0));
2549          const double *ptr_1 = &(tmp_1->getDefaultValueRO(0));
2550          double *ptr_2 = &(tmp_2->getDefaultValueRW(0));
2551    
2552          // Compute a result for the default
2553          tensor_binary_operation(size1, ptr_0[0], ptr_1, ptr_2, operation);
2554          // Merge the tags
2555          DataTagged::DataMapType::const_iterator i; // i->first is a tag, i->second is an offset into memory
2556          const DataTagged::DataMapType& lookup_0=tmp_0->getTagLookup();
2557          const DataTagged::DataMapType& lookup_1=tmp_1->getTagLookup();
2558          for (i=lookup_0.begin();i!=lookup_0.end();i++) {
2559            tmp_2->addTag(i->first); // use tmp_2 to get correct shape
2560          }
2561          for (i=lookup_1.begin();i!=lookup_1.end();i++) {
2562            tmp_2->addTag(i->first);
2563          }
2564          // Compute a result for each tag
2565          const DataTagged::DataMapType& lookup_2=tmp_2->getTagLookup();
2566          for (i=lookup_2.begin();i!=lookup_2.end();i++) {
2567            const double *ptr_0 = &(tmp_0->getDataByTagRO(i->first,0));
2568            const double *ptr_1 = &(tmp_1->getDataByTagRO(i->first,0));
2569            double *ptr_2 = &(tmp_2->getDataByTagRW(i->first,0));
2570    
2571            tensor_binary_operation(size1, ptr_0[0], ptr_1, ptr_2, operation);
2572          }
2573    
2574        }
2575        else if (arg_0_Z.isTagged()     && arg_1_Z.isExpanded()) {
2576    
2577          // After finding a common function space above the two inputs have the same numSamples and num DPPS
2578          res = Data(0.0, shape1, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2579          DataTagged*   tmp_0=dynamic_cast<DataTagged*>(arg_0_Z.borrowData());
2580          DataExpanded* tmp_1=dynamic_cast<DataExpanded*>(arg_1_Z.borrowData());
2581          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2582    
2583          int sampleNo_0,dataPointNo_0;
2584          int numSamples_0 = arg_0_Z.getNumSamples();
2585          int numDataPointsPerSample_0 = arg_0_Z.getNumDataPointsPerSample();
2586          res.requireWrite();
2587          #pragma omp parallel for private(sampleNo_0,dataPointNo_0) schedule(static)
2588          for (sampleNo_0 = 0; sampleNo_0 < numSamples_0; sampleNo_0++) {
2589            int offset_0 = tmp_0->getPointOffset(sampleNo_0,0); // They're all the same, so just use #0
2590            const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2591            for (dataPointNo_0 = 0; dataPointNo_0 < numDataPointsPerSample_0; dataPointNo_0++) {
2592              int offset_1 = tmp_1->getPointOffset(sampleNo_0,dataPointNo_0);
2593              int offset_2 = tmp_2->getPointOffset(sampleNo_0,dataPointNo_0);
2594              const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2595              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2596              tensor_binary_operation(size1, ptr_0[0], ptr_1, ptr_2, operation);
2597            }
2598          }
2599    
2600        }
2601        else if (arg_0_Z.isExpanded()   && arg_1_Z.isConstant()) {
2602          res = Data(0.0, shape1, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2603          DataExpanded* tmp_0=dynamic_cast<DataExpanded*>(arg_0_Z.borrowData());
2604          DataConstant* tmp_1=dynamic_cast<DataConstant*>(arg_1_Z.borrowData());
2605          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2606    
2607          int sampleNo_0,dataPointNo_0;
2608          int numSamples_0 = arg_0_Z.getNumSamples();
2609          int numDataPointsPerSample_0 = arg_0_Z.getNumDataPointsPerSample();
2610          int offset_1 = tmp_1->getPointOffset(0,0);
2611          res.requireWrite();
2612          #pragma omp parallel for private(sampleNo_0,dataPointNo_0) schedule(static)
2613          for (sampleNo_0 = 0; sampleNo_0 < numSamples_0; sampleNo_0++) {
2614            for (dataPointNo_0 = 0; dataPointNo_0 < numDataPointsPerSample_0; dataPointNo_0++) {
2615              int offset_0 = tmp_0->getPointOffset(sampleNo_0,dataPointNo_0);
2616              int offset_2 = tmp_2->getPointOffset(sampleNo_0,dataPointNo_0);
2617              const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2618              const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2619              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2620              tensor_binary_operation(size1, ptr_0[0], ptr_1, ptr_2, operation);
2621            }
2622          }
2623    
2624    
2625        }
2626        else if (arg_0_Z.isExpanded()   && arg_1_Z.isTagged()) {
2627    
2628          // After finding a common function space above the two inputs have the same numSamples and num DPPS
2629          res = Data(0.0, shape1, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2630          DataExpanded* tmp_0=dynamic_cast<DataExpanded*>(arg_0_Z.borrowData());
2631          DataTagged*   tmp_1=dynamic_cast<DataTagged*>(arg_1_Z.borrowData());
2632          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2633    
2634          int sampleNo_0,dataPointNo_0;
2635          int numSamples_0 = arg_0_Z.getNumSamples();
2636          int numDataPointsPerSample_0 = arg_0_Z.getNumDataPointsPerSample();
2637          res.requireWrite();
2638          #pragma omp parallel for private(sampleNo_0,dataPointNo_0) schedule(static)
2639          for (sampleNo_0 = 0; sampleNo_0 < numSamples_0; sampleNo_0++) {
2640            int offset_1 = tmp_1->getPointOffset(sampleNo_0,0);
2641            const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2642            for (dataPointNo_0 = 0; dataPointNo_0 < numDataPointsPerSample_0; dataPointNo_0++) {
2643              int offset_0 = tmp_0->getPointOffset(sampleNo_0,dataPointNo_0);
2644              int offset_2 = tmp_2->getPointOffset(sampleNo_0,dataPointNo_0);
2645              const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2646              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2647              tensor_binary_operation(size1, ptr_0[0], ptr_1, ptr_2, operation);
2648            }
2649          }
2650    
2651        }
2652        else if (arg_0_Z.isExpanded()   && arg_1_Z.isExpanded()) {
2653    
2654          // After finding a common function space above the two inputs have the same numSamples and num DPPS
2655          res = Data(0.0, shape1, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2656          DataExpanded* tmp_0=dynamic_cast<DataExpanded*>(arg_0_Z.borrowData());
2657          DataExpanded* tmp_1=dynamic_cast<DataExpanded*>(arg_1_Z.borrowData());
2658          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2659    
2660          int sampleNo_0,dataPointNo_0;
2661          int numSamples_0 = arg_0_Z.getNumSamples();
2662          int numDataPointsPerSample_0 = arg_0_Z.getNumDataPointsPerSample();
2663          res.requireWrite();
2664          #pragma omp parallel for private(sampleNo_0,dataPointNo_0) schedule(static)
2665          for (sampleNo_0 = 0; sampleNo_0 < numSamples_0; sampleNo_0++) {
2666            for (dataPointNo_0 = 0; dataPointNo_0 < numDataPointsPerSample_0; dataPointNo_0++) {
2667              int offset_0 = tmp_0->getPointOffset(sampleNo_0,dataPointNo_0);
2668              int offset_1 = tmp_1->getPointOffset(sampleNo_0,dataPointNo_0);
2669              int offset_2 = tmp_2->getPointOffset(sampleNo_0,dataPointNo_0);
2670              const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2671              const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2672              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2673              tensor_binary_operation(size1, ptr_0[0], ptr_1, ptr_2, operation);
2674            }
2675          }
2676    
2677        }
2678        else {
2679          throw DataException("Error - C_TensorBinaryOperation: unknown combination of inputs");
2680        }
2681    
2682      } else if (0 == rank1) {
2683        if (arg_0_Z.isConstant()   && arg_1_Z.isConstant()) {
2684          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace());      // DataConstant output
2685          const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(0));
2686          const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(0));
2687          double *ptr_2 = &(res.getDataAtOffsetRW(0));
2688          tensor_binary_operation(size0, ptr_0, ptr_1[0], ptr_2, operation);
2689        }
2690        else if (arg_0_Z.isConstant()   && arg_1_Z.isTagged()) {
2691    
2692          // Prepare the DataConstant input
2693          DataConstant* tmp_0=dynamic_cast<DataConstant*>(arg_0_Z.borrowData());
2694    
2695          // Borrow DataTagged input from Data object
2696          DataTagged* tmp_1=dynamic_cast<DataTagged*>(arg_1_Z.borrowData());
2697    
2698          // Prepare a DataTagged output 2
2699          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace());      // DataTagged output
2700          res.tag();
2701          DataTagged* tmp_2=dynamic_cast<DataTagged*>(res.borrowData());
2702    
2703          // Prepare offset into DataConstant
2704          int offset_0 = tmp_0->getPointOffset(0,0);
2705          const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2706    
2707          //Get the pointers to the actual data
2708          const double *ptr_1 = &(tmp_1->getDefaultValueRO(0));
2709          double *ptr_2 = &(tmp_2->getDefaultValueRW(0));
2710    
2711          // Compute a result for the default
2712          tensor_binary_operation(size0, ptr_0, ptr_1[0], ptr_2, operation);
2713          // Compute a result for each tag
2714          const DataTagged::DataMapType& lookup_1=tmp_1->getTagLookup();
2715          DataTagged::DataMapType::const_iterator i; // i->first is a tag, i->second is an offset into memory
2716          for (i=lookup_1.begin();i!=lookup_1.end();i++) {
2717            tmp_2->addTag(i->first);
2718            const double *ptr_1 = &(tmp_1->getDataByTagRO(i->first,0));
2719            double *ptr_2 = &(tmp_2->getDataByTagRW(i->first,0));
2720            tensor_binary_operation(size0, ptr_0, ptr_1[0], ptr_2, operation);
2721          }
2722        }
2723        else if (arg_0_Z.isConstant()   && arg_1_Z.isExpanded()) {
2724    
2725          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2726          DataConstant* tmp_0=dynamic_cast<DataConstant*>(arg_0_Z.borrowData());
2727          DataExpanded* tmp_1=dynamic_cast<DataExpanded*>(arg_1_Z.borrowData());
2728          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2729    
2730          int sampleNo_1,dataPointNo_1;
2731          int numSamples_1 = arg_1_Z.getNumSamples();
2732          int numDataPointsPerSample_1 = arg_1_Z.getNumDataPointsPerSample();
2733          int offset_0 = tmp_0->getPointOffset(0,0);
2734          res.requireWrite();
2735          #pragma omp parallel for private(sampleNo_1,dataPointNo_1) schedule(static)
2736          for (sampleNo_1 = 0; sampleNo_1 < numSamples_1; sampleNo_1++) {
2737            for (dataPointNo_1 = 0; dataPointNo_1 < numDataPointsPerSample_1; dataPointNo_1++) {
2738              int offset_1 = tmp_1->getPointOffset(sampleNo_1,dataPointNo_1);
2739              int offset_2 = tmp_2->getPointOffset(sampleNo_1,dataPointNo_1);
2740              const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2741              const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2742              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2743              tensor_binary_operation(size0, ptr_0, ptr_1[0], ptr_2, operation);
2744            }
2745          }
2746    
2747        }
2748        else if (arg_0_Z.isTagged()     && arg_1_Z.isConstant()) {
2749    
2750          // Borrow DataTagged input from Data object
2751          DataTagged* tmp_0=dynamic_cast<DataTagged*>(arg_0_Z.borrowData());
2752    
2753          // Prepare the DataConstant input
2754          DataConstant* tmp_1=dynamic_cast<DataConstant*>(arg_1_Z.borrowData());
2755    
2756          // Prepare a DataTagged output 2
2757          res = Data(0.0, shape0, arg_0_Z.getFunctionSpace());      // DataTagged output
2758          res.tag();
2759          DataTagged* tmp_2=dynamic_cast<DataTagged*>(res.borrowData());
2760    
2761          // Prepare offset into DataConstant
2762          int offset_1 = tmp_1->getPointOffset(0,0);
2763          const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2764          // Get the pointers to the actual data
2765          const double *ptr_0 = &(tmp_0->getDefaultValueRO(0));
2766          double *ptr_2 = &(tmp_2->getDefaultValueRW(0));
2767          // Compute a result for the default
2768          tensor_binary_operation(size0, ptr_0, ptr_1[0], ptr_2, operation);
2769          // Compute a result for each tag
2770          const DataTagged::DataMapType& lookup_0=tmp_0->getTagLookup();
2771          DataTagged::DataMapType::const_iterator i; // i->first is a tag, i->second is an offset into memory
2772          for (i=lookup_0.begin();i!=lookup_0.end();i++) {
2773            tmp_2->addTag(i->first);
2774            const double *ptr_0 = &(tmp_0->getDataByTagRO(i->first,0));
2775            double *ptr_2 = &(tmp_2->getDataByTagRW(i->first,0));
2776            tensor_binary_operation(size0, ptr_0, ptr_1[0], ptr_2, operation);
2777          }
2778    
2779        }
2780        else if (arg_0_Z.isTagged()     && arg_1_Z.isTagged()) {
2781    
2782          // Borrow DataTagged input from Data object
2783          DataTagged* tmp_0=dynamic_cast<DataTagged*>(arg_0_Z.borrowData());
2784    
2785          // Borrow DataTagged input from Data object
2786          DataTagged* tmp_1=dynamic_cast<DataTagged*>(arg_1_Z.borrowData());
2787    
2788          // Prepare a DataTagged output 2
2789          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace());
2790          res.tag();        // DataTagged output
2791          DataTagged* tmp_2=dynamic_cast<DataTagged*>(res.borrowData());
2792    
2793          // Get the pointers to the actual data
2794          const double *ptr_0 = &(tmp_0->getDefaultValueRO(0));
2795          const double *ptr_1 = &(tmp_1->getDefaultValueRO(0));
2796          double *ptr_2 = &(tmp_2->getDefaultValueRW(0));
2797    
2798          // Compute a result for the default
2799          tensor_binary_operation(size0, ptr_0, ptr_1[0], ptr_2, operation);
2800          // Merge the tags
2801          DataTagged::DataMapType::const_iterator i; // i->first is a tag, i->second is an offset into memory
2802          const DataTagged::DataMapType& lookup_0=tmp_0->getTagLookup();
2803          const DataTagged::DataMapType& lookup_1=tmp_1->getTagLookup();
2804          for (i=lookup_0.begin();i!=lookup_0.end();i++) {
2805            tmp_2->addTag(i->first); // use tmp_2 to get correct shape
2806          }
2807          for (i=lookup_1.begin();i!=lookup_1.end();i++) {
2808            tmp_2->addTag(i->first);
2809          }
2810          // Compute a result for each tag
2811          const DataTagged::DataMapType& lookup_2=tmp_2->getTagLookup();
2812          for (i=lookup_2.begin();i!=lookup_2.end();i++) {
2813            const double *ptr_0 = &(tmp_0->getDataByTagRO(i->first,0));
2814            const double *ptr_1 = &(tmp_1->getDataByTagRO(i->first,0));
2815            double *ptr_2 = &(tmp_2->getDataByTagRW(i->first,0));
2816            tensor_binary_operation(size0, ptr_0, ptr_1[0], ptr_2, operation);
2817          }
2818    
2819        }
2820        else if (arg_0_Z.isTagged()     && arg_1_Z.isExpanded()) {
2821    
2822          // After finding a common function space above the two inputs have the same numSamples and num DPPS
2823          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2824          DataTagged*   tmp_0=dynamic_cast<DataTagged*>(arg_0_Z.borrowData());
2825          DataExpanded* tmp_1=dynamic_cast<DataExpanded*>(arg_1_Z.borrowData());
2826          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2827    
2828          int sampleNo_0,dataPointNo_0;
2829          int numSamples_0 = arg_0_Z.getNumSamples();
2830          int numDataPointsPerSample_0 = arg_0_Z.getNumDataPointsPerSample();
2831          res.requireWrite();
2832          #pragma omp parallel for private(sampleNo_0,dataPointNo_0) schedule(static)
2833          for (sampleNo_0 = 0; sampleNo_0 < numSamples_0; sampleNo_0++) {
2834            int offset_0 = tmp_0->getPointOffset(sampleNo_0,0); // They're all the same, so just use #0
2835            const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2836            for (dataPointNo_0 = 0; dataPointNo_0 < numDataPointsPerSample_0; dataPointNo_0++) {
2837              int offset_1 = tmp_1->getPointOffset(sampleNo_0,dataPointNo_0);
2838              int offset_2 = tmp_2->getPointOffset(sampleNo_0,dataPointNo_0);
2839              const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2840              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2841              tensor_binary_operation(size0, ptr_0, ptr_1[0], ptr_2, operation);
2842            }
2843          }
2844    
2845        }
2846        else if (arg_0_Z.isExpanded()   && arg_1_Z.isConstant()) {
2847          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2848          DataExpanded* tmp_0=dynamic_cast<DataExpanded*>(arg_0_Z.borrowData());
2849          DataConstant* tmp_1=dynamic_cast<DataConstant*>(arg_1_Z.borrowData());
2850          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2851    
2852          int sampleNo_0,dataPointNo_0;
2853          int numSamples_0 = arg_0_Z.getNumSamples();
2854          int numDataPointsPerSample_0 = arg_0_Z.getNumDataPointsPerSample();
2855          int offset_1 = tmp_1->getPointOffset(0,0);
2856          res.requireWrite();
2857          #pragma omp parallel for private(sampleNo_0,dataPointNo_0) schedule(static)
2858          for (sampleNo_0 = 0; sampleNo_0 < numSamples_0; sampleNo_0++) {
2859            for (dataPointNo_0 = 0; dataPointNo_0 < numDataPointsPerSample_0; dataPointNo_0++) {
2860              int offset_0 = tmp_0->getPointOffset(sampleNo_0,dataPointNo_0);
2861              int offset_2 = tmp_2->getPointOffset(sampleNo_0,dataPointNo_0);
2862              const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2863              const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2864              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2865              tensor_binary_operation(size0, ptr_0, ptr_1[0], ptr_2, operation);
2866            }
2867          }
2868    
2869    
2870        }
2871        else if (arg_0_Z.isExpanded()   && arg_1_Z.isTagged()) {
2872    
2873          // After finding a common function space above the two inputs have the same numSamples and num DPPS
2874          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2875          DataExpanded* tmp_0=dynamic_cast<DataExpanded*>(arg_0_Z.borrowData());
2876          DataTagged*   tmp_1=dynamic_cast<DataTagged*>(arg_1_Z.borrowData());
2877          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2878    
2879          int sampleNo_0,dataPointNo_0;
2880          int numSamples_0 = arg_0_Z.getNumSamples();
2881          int numDataPointsPerSample_0 = arg_0_Z.getNumDataPointsPerSample();
2882          res.requireWrite();
2883          #pragma omp parallel for private(sampleNo_0,dataPointNo_0) schedule(static)
2884          for (sampleNo_0 = 0; sampleNo_0 < numSamples_0; sampleNo_0++) {
2885            int offset_1 = tmp_1->getPointOffset(sampleNo_0,0);
2886            const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2887            for (dataPointNo_0 = 0; dataPointNo_0 < numDataPointsPerSample_0; dataPointNo_0++) {
2888              int offset_0 = tmp_0->getPointOffset(sampleNo_0,dataPointNo_0);
2889              int offset_2 = tmp_2->getPointOffset(sampleNo_0,dataPointNo_0);
2890              const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2891              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2892              tensor_binary_operation(size0, ptr_0, ptr_1[0], ptr_2, operation);
2893            }
2894          }
2895    
2896        }
2897        else if (arg_0_Z.isExpanded()   && arg_1_Z.isExpanded()) {
2898    
2899          // After finding a common function space above the two inputs have the same numSamples and num DPPS
2900          res = Data(0.0, shape0, arg_1_Z.getFunctionSpace(),true); // DataExpanded output
2901          DataExpanded* tmp_0=dynamic_cast<DataExpanded*>(arg_0_Z.borrowData());
2902          DataExpanded* tmp_1=dynamic_cast<DataExpanded*>(arg_1_Z.borrowData());
2903          DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2904    
2905          int sampleNo_0,dataPointNo_0;
2906          int numSamples_0 = arg_0_Z.getNumSamples();
2907          int numDataPointsPerSample_0 = arg_0_Z.getNumDataPointsPerSample();
2908          res.requireWrite();
2909          #pragma omp parallel for private(sampleNo_0,dataPointNo_0) schedule(static)
2910          for (sampleNo_0 = 0; sampleNo_0 < numSamples_0; sampleNo_0++) {
2911            for (dataPointNo_0 = 0; dataPointNo_0 < numDataPointsPerSample_0; dataPointNo_0++) {
2912              int offset_0 = tmp_0->getPointOffset(sampleNo_0,dataPointNo_0);
2913              int offset_1 = tmp_1->getPointOffset(sampleNo_0,dataPointNo_0);
2914              int offset_2 = tmp_2->getPointOffset(sampleNo_0,dataPointNo_0);
2915              const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
2916              const double *ptr_1 = &(arg_1_Z.getDataAtOffsetRO(offset_1));
2917              double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
2918              tensor_binary_operation(size0, ptr_0, ptr_1[0], ptr_2, operation);
2919            }
2920          }
2921    
2922        }
2923        else {
2924          throw DataException("Error - C_TensorBinaryOperation: unknown combination of inputs");
2925        }
2926    
2927      } else {
2928        throw DataException("Error - C_TensorBinaryOperation: arguments have incompatible shapes");
2929      }
2930    
2931      return res;
2932    }
2933    
2934    template <typename UnaryFunction>
2935    Data
2936    C_TensorUnaryOperation(Data const &arg_0,
2937                           UnaryFunction operation)
2938    {
2939      if (arg_0.isEmpty())  // do this before we attempt to interpolate
2940      {
2941         throw DataException("Error - Operations not permitted on instances of DataEmpty.");
2942      }
2943      if (arg_0.isLazy())
2944      {
2945         throw DataException("Error - Operations not permitted on lazy data.");
2946      }
2947      // Interpolate if necessary and find an appropriate function space
2948      Data arg_0_Z = Data(arg_0);
2949    
2950      // Get rank and shape of inputs
2951      const DataTypes::ShapeType& shape0 = arg_0_Z.getDataPointShape();
2952      int size0 = arg_0_Z.getDataPointSize();
2953    
2954      // Declare output Data object
2955      Data res;
2956    
2957      if (arg_0_Z.isConstant()) {
2958        res = Data(0.0, shape0, arg_0_Z.getFunctionSpace());      // DataConstant output
2959        const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(0));
2960        double *ptr_2 = &(res.getDataAtOffsetRW(0));
2961        tensor_unary_operation(size0, ptr_0, ptr_2, operation);
2962      }
2963      else if (arg_0_Z.isTagged()) {
2964    
2965        // Borrow DataTagged input from Data object
2966        DataTagged* tmp_0=dynamic_cast<DataTagged*>(arg_0_Z.borrowData());
2967    
2968        // Prepare a DataTagged output 2
2969        res = Data(0.0, shape0, arg_0_Z.getFunctionSpace());   // DataTagged output
2970        res.tag();
2971        DataTagged* tmp_2=dynamic_cast<DataTagged*>(res.borrowData());
2972    
2973        // Get the pointers to the actual data
2974        const double *ptr_0 = &(tmp_0->getDefaultValueRO(0));
2975        double *ptr_2 = &(tmp_2->getDefaultValueRW(0));
2976        // Compute a result for the default
2977        tensor_unary_operation(size0, ptr_0, ptr_2, operation);
2978        // Compute a result for each tag
2979        const DataTagged::DataMapType& lookup_0=tmp_0->getTagLookup();
2980        DataTagged::DataMapType::const_iterator i; // i->first is a tag, i->second is an offset into memory
2981        for (i=lookup_0.begin();i!=lookup_0.end();i++) {
2982          tmp_2->addTag(i->first);
2983          const double *ptr_0 = &(tmp_0->getDataByTagRO(i->first,0));
2984          double *ptr_2 = &(tmp_2->getDataByTagRW(i->first,0));
2985          tensor_unary_operation(size0, ptr_0, ptr_2, operation);
2986        }
2987    
2988      }
2989      else if (arg_0_Z.isExpanded()) {
2990    
2991        res = Data(0.0, shape0, arg_0_Z.getFunctionSpace(),true); // DataExpanded output
2992        DataExpanded* tmp_0=dynamic_cast<DataExpanded*>(arg_0_Z.borrowData());
2993        DataExpanded* tmp_2=dynamic_cast<DataExpanded*>(res.borrowData());
2994    
2995        int sampleNo_0,dataPointNo_0;
2996        int numSamples_0 = arg_0_Z.getNumSamples();
2997        int numDataPointsPerSample_0 = arg_0_Z.getNumDataPointsPerSample();
2998        #pragma omp parallel for private(sampleNo_0,dataPointNo_0) schedule(static)
2999        for (sampleNo_0 = 0; sampleNo_0 < numSamples_0; sampleNo_0++) {
3000        dataPointNo_0=0;
3001    //      for (dataPointNo_0 = 0; dataPointNo_0 < numDataPointsPerSample_0; dataPointNo_0++) {
3002            int offset_0 = tmp_0->getPointOffset(sampleNo_0,dataPointNo_0);
3003            int offset_2 = tmp_2->getPointOffset(sampleNo_0,dataPointNo_0);
3004            const double *ptr_0 = &(arg_0_Z.getDataAtOffsetRO(offset_0));
3005            double *ptr_2 = &(res.getDataAtOffsetRW(offset_2));
3006            tensor_unary_operation(size0*numDataPointsPerSample_0, ptr_0, ptr_2, operation);
3007    //      }
3008        }
3009      }
3010      else {
3011        throw DataException("Error - C_TensorUnaryOperation: unknown combination of inputs");
3012      }
3013    
3014      return res;
3015  }  }
3016    
3017  }  }

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