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();
76 if (
A.RowMatrixRowMap().Comm().MyPID()==0) {
86 if (writeHeader==
true) {
90 if (matrixName!=0) fprintf(handle,
"%% \n%% %s\n", matrixName);
91 if (matrixDescription!=0) fprintf(handle,
"%% %s\n%% \n", matrixDescription);
99 if (
A.RowMatrixRowMap().Comm().MyPID()==0)
104 template<
typename int_type>
111 if (numProc==1 || !
A.Map().DistributedGlobal())
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);
162 #ifndef EPETRA_NO_32BIT_GLOBAL_INDICES 163 if(
A.RowMatrixRowMap().GlobalIndicesInt()) {
164 return RowMatrixToHandle<int>(handle,
A);
168 #ifndef EPETRA_NO_64BIT_GLOBAL_INDICES 169 if(
A.RowMatrixRowMap().GlobalIndicesLongLong()) {
170 return RowMatrixToHandle<long long>(handle,
A);
174 throw "EpetraExt::RowMatrixToHandle: GlobalIndices type unknown";
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);
189 if (comm.
MyPID()!=0) {
197 for (
int i=0; i<numRows; i++) {
198 long long I = rowMap.
GID64(i) + ioffset;
200 if (
A.ExtractMyRowCopy(i, values.Length(), numEntries,
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 RowMatrixToHandle(FILE *handle, const Epetra_RowMatrix &A)
#define mm_set_coordinate(typecode)
#define mm_set_real(typecode)
#define mm_set_matrix(typecode)
int mm_write_banner(FILE *f, MM_typecode matcode)
#define EPETRA_CHK_ERR(a)
EpetraExt::BlockCrsMatrix: A class for constructing a distributed block matrix.
virtual int MyPID() const=0
int FillComplete(bool OptimizeDataStorage=true)
int mm_write_mtx_crd_size(FILE *f, long long M, long long N, long long nz)
int RowMatrixToMatlabFile(const char *filename, const Epetra_RowMatrix &A)
Writes an Epetra_RowMatrix object to a file that is compatible with Matlab.
long long GID64(int LID) const
int NumMyElements() const
const Epetra_Comm & Comm() const
int writeRowMatrix(FILE *handle, const Epetra_RowMatrix &A)
long long IndexBase64() const
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.
virtual int NumProc() const=0
#define mm_initialize_typecode(typecode)
int Import(const Epetra_SrcDistObject &A, const Epetra_Import &Importer, Epetra_CombineMode CombineMode, const Epetra_OffsetIndex *Indexor=0)