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Use row_wise mode to build jacMatrix

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Tong Dong Qiu 2022-03-08 14:53:08 +01:00
parent 1a1bc24bef
commit 4db112cafa
1 changed files with 8 additions and 8 deletions
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16
opm/simulators/linalg/ISTLSolverEbos.hpp
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@ -515,30 +515,31 @@ namespace Opm
} }
/// Create sparsity pattern for block-Jacobi matrix based on partitioning of grid. /// Create sparsity pattern for block-Jacobi matrix based on partitioning of grid.
/// Do not initialize the values, that is done in copyMatToBlockJac()
void blockJacobiAdjacency() void blockJacobiAdjacency()
{ {
const auto& grid = simulator_.vanguard().grid(); const auto& grid = simulator_.vanguard().grid();
std::vector<int> cell_part = simulator_.vanguard().cellPartition(); std::vector<int> cell_part = simulator_.vanguard().cellPartition();
typedef typename Matrix::size_type size_type; typedef typename Matrix::size_type size_type;
typedef typename Matrix::CreateIterator Iter;
size_type numCells = grid.size( 0 ); size_type numCells = grid.size( 0 );
blockJacobiForGPUILU0_.reset(new Matrix(numCells, numCells, 8, 0.4, Matrix::implicit)); blockJacobiForGPUILU0_.reset(new Matrix(numCells, numCells, getMatrix().nonzeroes(), Matrix::row_wise));
const auto& lid = grid.localIdSet(); const auto& lid = grid.localIdSet();
const auto& gridView = grid.leafGridView(); const auto& gridView = grid.leafGridView();
auto elemIt = gridView.template begin<0>(); auto elemIt = gridView.template begin<0>(); // should never overrun, since blockJacobiForGPUILU0_ is initialized with numCells rows
const auto& elemEndIt = gridView.template end<0>();
//Loop over cells //Loop over cells
for (; elemIt != elemEndIt; ++elemIt) for (Iter row = blockJacobiForGPUILU0_->createbegin(); row != blockJacobiForGPUILU0_->createend(); ++elemIt, ++row)
{ {
const auto& elem = *elemIt; const auto& elem = *elemIt;
size_type idx = lid.id(elem); size_type idx = lid.id(elem);
blockJacobiForGPUILU0_->entry(idx, idx) = 0.0; row.insert(idx);
// Add well non-zero connections // Add well non-zero connections
for (auto wc = wellConnectionsGraph_[idx].begin(); wc!=wellConnectionsGraph_[idx].end(); ++wc) { for (auto wc = wellConnectionsGraph_[idx].begin(); wc!=wellConnectionsGraph_[idx].end(); ++wc) {
blockJacobiForGPUILU0_->entry(idx, *wc) = 0.0; row.insert(*wc);
} }
int locPart = cell_part[idx]; int locPart = cell_part[idx];
@ -553,12 +554,11 @@ namespace Opm
size_type nid = lid.id(is->outside()); size_type nid = lid.id(is->outside());
int nabPart = cell_part[nid]; int nabPart = cell_part[nid];
if (locPart == nabPart) { if (locPart == nabPart) {
blockJacobiForGPUILU0_->entry(idx, nid) = 0.0; row.insert(nid);
} }
} }
} }
} }
blockJacobiForGPUILU0_->compress();
} }
void copyMatToBlockJac(const Matrix& mat, Matrix& blockJac) void copyMatToBlockJac(const Matrix& mat, Matrix& blockJac)