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Ma57 parameter fix #645

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Ma57 parameter fix #645

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735229e
update parameter settings
nychiang Jul 25, 2023
84009a4
update default parameter settings
nychiang Jul 25, 2023
0646a8f
fix typo
nychiang Jul 27, 2023
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15 changes: 12 additions & 3 deletions src/LinAlg/hiopLinSolverSymSparseMA57.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,7 @@ namespace hiop
// 4 use Metis;
// 5 automatic choice(MA47 or Metis);
icntl_[7-1] = 1; // Pivoting strategy.
icntl_[9-1] = 10; // up to 10 steps of iterative refinement
icntl_[9-1] = 1; // use one step of iterative refinement
icntl_[11-1] = 16;
icntl_[12-1] = 16;
icntl_[15-1] = 0;
Expand All @@ -92,7 +92,13 @@ namespace hiop
keep_ = new int[lkeep_]{0}; // Initialize to 0 as otherwise MA57ED can sometimes fail

iwork_ = new int[5 * n_];
dwork_ = new double[n_];
if(icntl_[9-1] > 1 && icntl_[10-1] > 1 ) {
dwork_ = new double[4*n_];
} else if(icntl_[9-1] > 1) {
dwork_ = new double[3*n_];
} else {
dwork_ = new double[n_];
}

MA57AD( &n_, &nnz_, irowM_, jcolM_, &lkeep_, keep_, iwork_, icntl_, info_, rinfo_ );

Expand Down Expand Up @@ -194,7 +200,10 @@ namespace hiop

int job = 1; // full solve
int one = 1;
icntl_[9-1] = 1; // do one step of iterative refinement

if(icntl_[9-1]>1) {
job = 0; // only allow 0 or 2
}

hiopVector* x = dynamic_cast<hiopVector*>(&x_in);
assert(x!=nullptr);
Expand Down