67 const char * matrixName,
68 const char *matrixDescription,
70 long long M = A.NumGlobalRows64();
71 long long N = A.NumGlobalCols64();
72 long long nz = A.NumGlobalNonzeros64();
78 handle = fopen(filename,
"w");
79 if (!handle) {EPETRA_CHK_ERR(-1);}
86 if (writeHeader==
true) {
90 if (matrixName!=0) fprintf(handle,
"%% \n%% %s\n", matrixName);
91 if (matrixDescription!=0) fprintf(handle,
"%% %s\n%% \n", matrixDescription);
100 if (fclose(handle)!=0) {EPETRA_CHK_ERR(-1);}
111 if (numProc==1 || !A.
Map().DistributedGlobal())
114 int numRows = map.NumMyElements();
116 Epetra_Map allGidsMap((int_type) -1, numRows, (int_type) 0,comm);
119 for (
int i=0; i<numRows; i++) allGids[i] = (int_type) map.GID64(i);
122 int numChunks = numProc;
123 int stripSize = allGids.GlobalLength64()/numChunks;
124 int remainder = allGids.GlobalLength64()%numChunks;
126 int curStripSize = 0;
129 importGidList.Size(stripSize+1);
130 for (
int i=0; i<numChunks; i++) {
131 if (comm.MyPID()==0) {
132 curStripSize = stripSize;
133 if (i<remainder) curStripSize++;
134 for (
int j=0; j<curStripSize; j++) importGidList[j] = j + curStart;
135 curStart += curStripSize;
138 if (comm.MyPID()>0) assert(curStripSize==0);
139 Epetra_Map importGidMap(-1, curStripSize, importGidList.Values(), 0, comm);
142 if (importGids.Import(allGids, gidImporter,
Insert)!=0) {EPETRA_CHK_ERR(-1); }
148 Epetra_Map importMap(-1, importGids.MyLength(), importGids.Values(), map.IndexBase64(), comm);
151 if (importA.Import(A, importer,
Insert)!=0) {EPETRA_CHK_ERR(-1); }
152 if (importA.FillComplete(A.
OperatorDomainMap(), importMap)!=0) {EPETRA_CHK_ERR(-1);}
179 long long numRows_LL = A.NumGlobalRows64();
180 if(numRows_LL > std::numeric_limits<int>::max())
181 throw "EpetraExt::writeRowMatrix: numRows_LL > std::numeric_limits<int>::max()";
183 int numRows =
static_cast<int>(numRows_LL);
187 long long ioffset = 1 - rowMap.IndexBase64();
188 long long joffset = 1 - colMap.IndexBase64();
189 if (comm.MyPID()!=0) {
190 if (A.
NumMyRows()!=0) {EPETRA_CHK_ERR(-1);}
191 if (A.
NumMyCols()!=0) {EPETRA_CHK_ERR(-1);}
194 if (numRows!=A.
NumMyRows()) {EPETRA_CHK_ERR(-1);}
197 for (
int i=0; i<numRows; i++) {
198 long long I = rowMap.GID64(i) + ioffset;
201 values.
Values(), indices.
Values())!=0) {EPETRA_CHK_ERR(-1);}
202 for (
int j=0; j<numEntries; j++) {
203 long long J = colMap.GID64(indices[j]) + joffset;
204 double val = values[j];
205 fprintf(handle,
"%lld %lld %22.16e\n", I, J, val);
int RowMatrixToMatrixMarketFile(const char *filename, const Epetra_RowMatrix &A, const char *matrixName, const char *matrixDescription, bool writeHeader)
Writes an Epetra_RowMatrix object to a Matrix Market format file.