/[escript]/trunk/escript/src/DataConstant.cpp
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trunk/esys2/escript/src/Data/DataConstant.cpp revision 97 by jgs, Tue Dec 14 05:39:33 2004 UTC trunk/escript/src/DataConstant.cpp revision 2548 by jfenwick, Mon Jul 20 06:20:06 2009 UTC
# Line 1  Line 1 
 //$Id$  
 /*  
  ******************************************************************************  
  *                                                                            *  
  *       COPYRIGHT  ACcESS 2004 -  All Rights Reserved                        *  
  *                                                                            *  
  * This software is the property of ACcESS. No part of this code              *  
  * may be copied in any form or by any means without the expressed written    *  
  * consent of ACcESS.  Copying, use or modification of this software          *  
  * by any unauthorised person is illegal unless that person has a software    *  
  * license agreement with ACcESS.                                             *  
  *                                                                            *  
  ******************************************************************************  
 */  
1    
2  #include "escript/Data/DataConstant.h"  /*******************************************************
3  #include "escript/Data/DataException.h"  *
4    * Copyright (c) 2003-2009 by University of Queensland
5    * Earth Systems Science Computational Center (ESSCC)
6    * http://www.uq.edu.au/esscc
7    *
8    * Primary Business: Queensland, Australia
9    * Licensed under the Open Software License version 3.0
10    * http://www.opensource.org/licenses/osl-3.0.php
11    *
12    *******************************************************/
13    
14    
15    #include "Data.h"
16    #include "DataConstant.h"
17    #include "DataException.h"
18  #include "esysUtils/EsysAssert.h"  #include "esysUtils/EsysAssert.h"
19    
20  #include <iostream>  #include <iostream>
21  #include <boost/python/extract.hpp>  #include <boost/python/extract.hpp>
22    #ifdef USE_NETCDF
23    #include <netcdfcpp.h>
24    #endif
25    #ifdef PASO_MPI
26    #include <mpi.h>
27    #endif
28    
29    #include <boost/python/extract.hpp>
30    #include "DataMaths.h"
31    
32    // #define CHECK_FOR_EX_WRITE if (!checkNoSharing()) {throw DataException("Attempt to modify shared object");}
33    
34    #define CHECK_FOR_EX_WRITE if (!checkNoSharing()) {std::ostringstream ss; ss << " Attempt to modify shared object. line " << __LINE__ << " of " << __FILE__; ss << m_owners.size(); cerr << ss << endl; /* *((int*)0)=17; */throw DataException(ss.str());}
35    
36  using namespace std;  using namespace std;
37    using namespace boost::python;
38    
39  namespace escript {  namespace escript {
40    
41  DataConstant::DataConstant(const boost::python::numeric::array& value,  DataConstant::DataConstant(const WrappedArray& value,
                            const FunctionSpace& what)  
   : DataAbstract(what)  
 {  
   DataArray temp(value);  
   //  
   // copy the data in the correct format  
   m_data=temp.getData();  
   DataArrayView tempView(m_data,temp.getView().getShape());  
   //  
   // copy the view of the data  
   setPointDataView(tempView);  
 }  
   
 DataConstant::DataConstant(const DataArrayView& value,  
42                             const FunctionSpace& what)                             const FunctionSpace& what)
43    : DataAbstract(what)    : parent(what,value.getShape())
44  {  {
45    //    m_data.copyFromArray(value,1);
   // copy the data in the correct format  
   m_data=value.getData();  
   DataArrayView tempView(m_data,value.getShape());  
   //  
   // copy the view of the data  
   setPointDataView(tempView);  
46  }  }
47    
48  DataConstant::DataConstant(const DataConstant& other)  DataConstant::DataConstant(const DataConstant& other)
49    : DataAbstract(other.getFunctionSpace())    : parent(other.getFunctionSpace(),other.getShape())
50  {  {
   //  
   // copy the data in the correct format  
51    m_data=other.m_data;    m_data=other.m_data;
   DataArrayView tempView(m_data,other.getPointDataView().getShape());  
   //  
   // copy the view of the data  
   setPointDataView(tempView);  
52  }  }
53    
54  DataConstant::DataConstant(const DataConstant& other,  DataConstant::DataConstant(const DataConstant& other,
55                             const DataArrayView::RegionType& region)                             const DataTypes::RegionType& region)
56    : DataAbstract(other.getFunctionSpace())    : parent(other.getFunctionSpace(),DataTypes::getResultSliceShape(region))
57  {  {
58    //    //
   // get the shape of the slice to copy from  
   DataArrayView::ShapeType shape(DataArrayView::getResultSliceShape(region));  
   //  
59    // allocate space for this new DataConstant's data    // allocate space for this new DataConstant's data
60    m_data.resize(DataArrayView::noValues(shape));    int len = getNoValues();
61      m_data.resize(len,0.,len);
62    //    //
63    // create a view of the data with the correct shape    // create a view of the data with the correct shape
64    DataArrayView tempView(m_data,shape);    DataTypes::RegionLoopRangeType region_loop_range=DataTypes::getSliceRegionLoopRange(region);
65    // copy the data from the slice to the temp view    //
66    tempView.copySlice(other.getPointDataView(),region);    // load the view with the data from the slice
67      DataTypes::copySlice(m_data,getShape(),0,other.getVectorRO(),other.getShape(),0,region_loop_range);
68    }
69    
70    DataConstant::DataConstant(const FunctionSpace& what,
71                               const DataTypes::ShapeType &shape,
72                               const DataTypes::ValueType &data)
73      : parent(what,shape)
74    {
75      //
76      // copy the data in the correct format
77      m_data=data;
78    //    //
79    // store the temp view of the data in this object    // create the view of the data
80    setPointDataView(tempView);  //   DataArrayView tempView(m_data,shape);
81    //   setPointDataView(tempView);
82  }  }
83    
84  string  string
85  DataConstant::toString() const  DataConstant::toString() const
86  {  {
87    return getPointDataView().toString("");    return DataTypes::pointToString(m_data,getShape(),0,"");
88  }  }
89    
90  DataArrayView::ValueType::size_type  
91    DataAbstract*
92    DataConstant::deepCopy()
93    {
94      return new DataConstant(*this);
95    }
96    
97    
98    DataTypes::ValueType::size_type
99  DataConstant::getPointOffset(int sampleNo,  DataConstant::getPointOffset(int sampleNo,
100                               int dataPointNo) const                               int dataPointNo) const
101  {  {
102    EsysAssert((validSamplePointNo(dataPointNo) && validSampleNo(sampleNo)),    EsysAssert((validSamplePointNo(dataPointNo) && validSampleNo(sampleNo)),
103                "Invalid index, sampleNo: " << sampleNo << " dataPointNo: " << dataPointNo);                "Invalid index, sampleNo: " << sampleNo << " dataPointNo: " << dataPointNo);
104      //
105      // Whatever the coord's always return the same value as this is constant data.
106    return 0;    return 0;
107  }  }
108    
109  DataArrayView::ValueType::size_type  DataTypes::ValueType::size_type
110  DataConstant::getLength() const  DataConstant::getPointOffset(int sampleNo,
111  {                               int dataPointNo)
   return m_data.size();  
 }  
   
 DataArrayView  
 DataConstant::getDataPoint(int sampleNo,  
                            int dataPointNo)  
112  {  {
113    EsysAssert((validSamplePointNo(dataPointNo) && validSampleNo(sampleNo)),    EsysAssert((validSamplePointNo(dataPointNo) && validSampleNo(sampleNo)),
114               "Invalid index, sampleNo: " << sampleNo << " dataPointNo: " << dataPointNo);                "Invalid index, sampleNo: " << sampleNo << " dataPointNo: " << dataPointNo);
115    //    //
116    // Whatever the coord's always return the same value as this is constant data.    // Whatever the coord's always return the same value as this is constant data.
117    return getPointDataView();    return 0;
118  }  }
119      
120    DataTypes::ValueType::size_type
121    DataConstant::getLength() const
122    {
123      return m_data.size();
124    }
125    
126  DataAbstract*  DataAbstract*
127  DataConstant::getSlice(const DataArrayView::RegionType& region) const  DataConstant::getSlice(const DataTypes::RegionType& region) const
128  {  {
129    return new DataConstant(*this,region);    return new DataConstant(*this,region);
130  }  }
131    
132  void  void
133  DataConstant::setSlice(const DataAbstract* value,  DataConstant::setSlice(const DataAbstract* value,
134                         const DataArrayView::RegionType& region)                         const DataTypes::RegionType& region)
135  {  {
136    const DataConstant* tempDataConst=dynamic_cast<const DataConstant*>(value);    const DataConstant* tempDataConst=dynamic_cast<const DataConstant*>(value);
137    if (tempDataConst==0) {    if (tempDataConst==0) {
138      throw DataException("Programming error - casting to DataConstant.");      throw DataException("Programming error - casting to DataConstant.");
139    }    }
140    getPointDataView().copySliceFrom(tempDataConst->getPointDataView(),region);    CHECK_FOR_EX_WRITE
141      //
142      DataTypes::ShapeType shape(DataTypes::getResultSliceShape(region));
143      DataTypes::RegionLoopRangeType region_loop_range=DataTypes::getSliceRegionLoopRange(region);
144      //
145      // check shape:
146      if (getRank()!=region.size()) {
147        throw DataException("Error - Invalid slice region.");
148      }
149      if (getRank()>0 && !DataTypes::checkShape(value->getShape(),shape)) {
150        throw DataException (DataTypes::createShapeErrorMessage(
151                    "Error - Couldn't copy slice due to shape mismatch.",shape,value->getShape()));
152      }
153      //   getPointDataView().copySliceFrom(tempDataConst->getPointDataView(),region_loop_range);
154      DataTypes::copySliceFrom(m_data,getShape(),0,tempDataConst->getVectorRO(), tempDataConst->getShape(),0,region_loop_range);
155    }
156    
157    
158    
159    void
160    DataConstant::symmetric(DataAbstract* ev)
161    {
162      DataConstant* temp_ev=dynamic_cast<DataConstant*>(ev);
163      if (temp_ev==0) {
164        throw DataException("Error - DataConstant::symmetric: casting to DataConstant failed (propably a programming error).");
165      }
166      DataMaths::symmetric(m_data,getShape(),0,temp_ev->getVectorRW(), temp_ev->getShape(),0);
167    }
168    
169    void
170    DataConstant::nonsymmetric(DataAbstract* ev)
171    {
172      DataConstant* temp_ev=dynamic_cast<DataConstant*>(ev);
173      if (temp_ev==0) {
174        throw DataException("Error - DataConstant::nonsymmetric: casting to DataConstant failed (propably a programming error).");
175      }
176      DataMaths::nonsymmetric(m_data,getShape(),0,temp_ev->getVectorRW(), temp_ev->getShape(),0);
177    }
178    
179    void
180    DataConstant::trace(DataAbstract* ev, int axis_offset)
181    {
182      DataConstant* temp_ev=dynamic_cast<DataConstant*>(ev);
183      if (temp_ev==0) {
184        throw DataException("Error - DataConstant::trace: casting to DataConstant failed (propably a programming error).");
185      }
186      ValueType& evVec=temp_ev->getVectorRW();
187      const ShapeType& evShape=temp_ev->getShape();
188      DataMaths::trace(m_data,getShape(),0,evVec,evShape,0,axis_offset);
189  }  }
190    
191  void  void
192  DataConstant::reshapeDataPoint(const DataArrayView::ShapeType& shape)  DataConstant::swapaxes(DataAbstract* ev, int axis0, int axis1)
193  {  {
194    if (getPointDataView().getRank()!=0) {    DataConstant* temp_ev=dynamic_cast<DataConstant*>(ev);
195      stringstream temp;    if (temp_ev==0) {
196      temp << "Error - Can only reshape Data with data points of rank 0. "      throw DataException("Error - DataConstant::swapaxes: casting to DataConstant failed (propably a programming error).");
          << "This Data has data points with rank: " << getPointDataView().getRank();  
     throw DataException(temp.str());  
197    }    }
198    m_data.resize(DataArrayView::noValues(shape),getPointDataView()());    DataMaths::swapaxes(m_data,getShape(),0,temp_ev->getVectorRW(), temp_ev->getShape(),0,axis0,axis1);
199    DataArrayView newView(m_data,shape);  }
200    setPointDataView(newView);  
201    void
202    DataConstant::transpose(DataAbstract* ev, int axis_offset)
203    {
204      DataConstant* temp_ev=dynamic_cast<DataConstant*>(ev);
205      if (temp_ev==0) {
206        throw DataException("Error - DataConstant::transpose: casting to DataConstant failed (propably a programming error).");
207      }
208      DataMaths::transpose(m_data, getShape(),0, temp_ev->getVectorRW(),temp_ev->getShape(),0,axis_offset);
209    }
210    
211    void
212    DataConstant::eigenvalues(DataAbstract* ev)
213    {
214      DataConstant* temp_ev=dynamic_cast<DataConstant*>(ev);
215      if (temp_ev==0) {
216        throw DataException("Error - DataConstant::eigenvalues: casting to DataConstant failed (propably a programming error).");
217      }
218      DataMaths::eigenvalues(m_data,getShape(),0,temp_ev->getVectorRW(), temp_ev->getShape(),0);
219    }
220    void
221    DataConstant::eigenvalues_and_eigenvectors(DataAbstract* ev,DataAbstract* V,const double tol)
222    {
223      DataConstant* temp_ev=dynamic_cast<DataConstant*>(ev);
224      if (temp_ev==0) {
225        throw DataException("Error - DataConstant::eigenvalues_and_eigenvectors: casting to DataConstant failed (propably a programming error).");
226      }
227      DataConstant* temp_V=dynamic_cast<DataConstant*>(V);
228      if (temp_V==0) {
229        throw DataException("Error - DataConstant::eigenvalues_and_eigenvectors: casting to DataConstant failed (propably a programming error).");
230      }
231      DataMaths::eigenvalues_and_eigenvectors(m_data, getShape(),0,temp_ev->getVectorRW(), temp_ev->getShape(),0,temp_V->getVectorRW(), temp_V->getShape(),0,tol);
232    }
233    
234    void
235    DataConstant::setToZero()
236    {
237        CHECK_FOR_EX_WRITE
238        DataTypes::ValueType::size_type n=m_data.size();
239        for (int i=0; i<n ;++i) m_data[i]=0.;
240    }
241    
242    void
243    DataConstant::dump(const std::string fileName) const
244    {
245       #ifdef USE_NETCDF
246       const NcDim* ncdims[DataTypes::maxRank];
247       NcVar* var;
248       int rank = getRank();
249       int type=  getFunctionSpace().getTypeCode();
250       int ndims =0;
251       long dims[DataTypes::maxRank];
252       const double* d_ptr=&(m_data[0]);
253       DataTypes::ShapeType shape = getShape();
254       int mpi_iam=getFunctionSpace().getDomain()->getMPIRank();
255       int mpi_num=getFunctionSpace().getDomain()->getMPISize();
256    #ifdef PASO_MPI
257       MPI_Status status;
258    #endif
259    
260    #ifdef PASO_MPI
261       /* Serialize NetCDF I/O */
262       if (mpi_iam>0) MPI_Recv(&ndims, 0, MPI_INT, mpi_iam-1, 81802, MPI_COMM_WORLD, &status);
263    #endif
264    
265       // netCDF error handler
266       NcError err(NcError::verbose_nonfatal);
267       // Create the file.
268       char *newFileName = Escript_MPI_appendRankToFileName(fileName.c_str(), mpi_num, mpi_iam);
269       NcFile dataFile(newFileName, NcFile::Replace);
270       // check if writing was successful
271       if (!dataFile.is_valid())
272        throw DataException("Error - DataConstant:: opening of netCDF file for output failed.");
273       if (!dataFile.add_att("type_id",0) )
274        throw DataException("Error - DataConstant:: appending data type to netCDF file failed.");
275       if (!dataFile.add_att("rank",rank) )
276        throw DataException("Error - DataConstant:: appending rank attribute to netCDF file failed.");
277       if (!dataFile.add_att("function_space_type",type))
278        throw DataException("Error - DataConstant:: appending function space attribute to netCDF file failed.");
279    
280       if (rank == 0) {
281          if( ! (ncdims[0] = dataFile.add_dim("l", 1)) )
282            throw DataException("Error - DataConstant:: appending ncdimension 0 to netCDF file failed.");
283          dims[0]=1,
284          ndims=1;
285       } else {
286           ndims=rank;
287           dims[0]=shape[0];
288           if (! (ncdims[0] = dataFile.add_dim("d0",shape[0])) )
289            throw DataException("Error - DataConstant:: appending ncdimension 0 to netCDF file failed.");
290           if ( rank >1 ) {
291               dims[1]=shape[1];
292               if (! (ncdims[1] = dataFile.add_dim("d1",shape[1])) )
293            throw DataException("Error - DataConstant:: appending ncdimension 1 to netCDF file failed.");
294           }
295           if ( rank >2 ) {
296               dims[2]=shape[2];
297               if (! (ncdims[2] = dataFile.add_dim("d2", shape[2])) )
298            throw DataException("Error - DataConstant:: appending ncdimension 2 to netCDF file failed.");
299           }
300           if ( rank >3 ) {
301               dims[3]=shape[3];
302               if (! (ncdims[3] = dataFile.add_dim("d3", shape[3])) )
303            throw DataException("Error - DataConstant:: appending ncdimension 3 to netCDF file failed.");
304           }
305       }
306    
307       if (! ( var = dataFile.add_var("data", ncDouble, ndims, ncdims)) )
308        throw DataException("Error - DataConstant:: appending variable to netCDF file failed.");
309       if (! (var->put(d_ptr,dims)) )
310             throw DataException("Error - DataConstant:: copy data to netCDF buffer failed.");
311    #ifdef PASO_MPI
312       if (mpi_iam<mpi_num-1) MPI_Send(&ndims, 0, MPI_INT, mpi_iam+1, 81802, MPI_COMM_WORLD);
313    #endif
314       #else
315       throw DataException("Error - DataConstant:: dump is not configured with netCDF. Please contact your installation manager.");
316       #endif
317    }
318    
319    // These used to be marked as inline in DataConstant.
320    // But they are marked virtual in DataReady
321    DataTypes::ValueType&
322    DataConstant::getVectorRW()
323    {
324      CHECK_FOR_EX_WRITE
325      return m_data;
326    }
327    
328    const DataTypes::ValueType&
329    DataConstant::getVectorRO() const
330    {
331      return m_data;
332  }  }
333    
334  }  // end of namespace  }  // end of namespace

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