OilfieldToolsNet/opm-simulators
4
0
Fork 0
mirror of https://github.com/OPM/opm-simulators.git synced 2025-02-25 18:55:30 -06:00
Code Issues Packages Projects Releases Wiki Activity

Added symmetry check in Debug mode

Browse Source
This commit is contained in:
tqiu
2021-02-01 11:19:38 +01:00
parent 363cc31316
commit a64a342104
1 changed files with 28 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
opm/simulators/linalg/bda/BILU0.cpp
View File

@@ -167,6 +167,34 @@ namespace bda
// split matrix into L and U // split matrix into L and U
// also convert U into BSC format (Ut) // also convert U into BSC format (Ut)
// Ut stores diagonal for now // Ut stores diagonal for now
// original matrix LUmat is assumed to be symmetric
#ifndef NDEBUG
// verify that matrix is symmetric
for (int i = 0; i < Nb; ++i){
int iRowStart = LUmat->rowPointers[i];
int iRowEnd = LUmat->rowPointers[i + 1];
// for every block (i, j) in this row, check if (j, i) also exists
for (int ij = iRowStart; ij < iRowEnd; ij++) {
int j = LUmat->colIndices[ij];
int jRowStart = LUmat->rowPointers[j];
int jRowEnd = LUmat->rowPointers[j + 1];
bool blockFound = false;
// check all blocks on row j
// binary search is possible
for (int ji = jRowStart; ji < jRowEnd; ji++) {
int row = LUmat->colIndices[ji];
if (i == row) {
blockFound = true;
break;
}
}
if (false == blockFound) {
OPM_THROW(std::logic_error, "Error sparsity pattern must be symmetric when using chow_patel_decomposition()");
}
}
}
#endif
// Ut is actually BSC format // Ut is actually BSC format
std::unique_ptr<BlockedMatrix<bs> > Ut = std::make_unique<BlockedMatrix<bs> >(Nb, (nnzbs + Nb) / 2); std::unique_ptr<BlockedMatrix<bs> > Ut = std::make_unique<BlockedMatrix<bs> >(Nb, (nnzbs + Nb) / 2);