/[escript]/trunk/escript/src/DataConstant.cpp
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Contents of /trunk/escript/src/DataConstant.cpp

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Revision 2271 - (show annotations)
Mon Feb 16 05:08:29 2009 UTC (10 years, 8 months ago) by jfenwick
File size: 11245 byte(s)
Merging version 2269 to trunk

1
2 /*******************************************************
3 *
4 * Copyright (c) 2003-2008 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"
19
20 #include <iostream>
21 #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;
37 using namespace boost::python;
38
39 namespace escript {
40
41 DataConstant::DataConstant(const WrappedArray& value,
42 const FunctionSpace& what)
43 : parent(what,value.getShape())
44 {
45 m_data.copyFromArray(value,1);
46 }
47
48 DataConstant::DataConstant(const DataConstant& other)
49 : parent(other.getFunctionSpace(),other.getShape())
50 {
51 m_data=other.m_data;
52 }
53
54 DataConstant::DataConstant(const DataConstant& other,
55 const DataTypes::RegionType& region)
56 : parent(other.getFunctionSpace(),DataTypes::getResultSliceShape(region))
57 {
58 //
59 // allocate space for this new DataConstant's data
60 int len = getNoValues();
61 m_data.resize(len,0.,len);
62 //
63 // create a view of the data with the correct shape
64 DataTypes::RegionLoopRangeType region_loop_range=DataTypes::getSliceRegionLoopRange(region);
65 //
66 // 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 // create the view of the data
80 // DataArrayView tempView(m_data,shape);
81 // setPointDataView(tempView);
82 }
83
84 string
85 DataConstant::toString() const
86 {
87 return DataTypes::pointToString(m_data,getShape(),0,"");
88 }
89
90
91 DataAbstract*
92 DataConstant::deepCopy()
93 {
94 return new DataConstant(*this);
95 }
96
97
98 DataTypes::ValueType::size_type
99 DataConstant::getPointOffset(int sampleNo,
100 int dataPointNo) const
101 {
102 EsysAssert((validSamplePointNo(dataPointNo) && validSampleNo(sampleNo)),
103 "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;
107 }
108
109 DataTypes::ValueType::size_type
110 DataConstant::getPointOffset(int sampleNo,
111 int dataPointNo)
112 {
113 EsysAssert((validSamplePointNo(dataPointNo) && validSampleNo(sampleNo)),
114 "Invalid index, sampleNo: " << sampleNo << " dataPointNo: " << dataPointNo);
115 //
116 // Whatever the coord's always return the same value as this is constant data.
117 return 0;
118 }
119
120 DataTypes::ValueType::size_type
121 DataConstant::getLength() const
122 {
123 return m_data.size();
124 }
125
126 DataAbstract*
127 DataConstant::getSlice(const DataTypes::RegionType& region) const
128 {
129 return new DataConstant(*this,region);
130 }
131
132 void
133 DataConstant::setSlice(const DataAbstract* value,
134 const DataTypes::RegionType& region)
135 {
136 const DataConstant* tempDataConst=dynamic_cast<const DataConstant*>(value);
137 if (tempDataConst==0) {
138 throw DataException("Programming error - casting to DataConstant.");
139 }
140 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
192 DataConstant::swapaxes(DataAbstract* ev, int axis0, int axis1)
193 {
194 DataConstant* temp_ev=dynamic_cast<DataConstant*>(ev);
195 if (temp_ev==0) {
196 throw DataException("Error - DataConstant::swapaxes: casting to DataConstant failed (propably a programming error).");
197 }
198 DataMaths::swapaxes(m_data,getShape(),0,temp_ev->getVectorRW(), temp_ev->getShape(),0,axis0,axis1);
199 }
200
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

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