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LA: fix initialization of PETSc KSP #473

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merged 2 commits into from
Jun 11, 2024
Merged

LA: fix initialization of PETSc KSP #473

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0a7d803
LA: fix initialization of Krylov subspace
andrea-iob Jun 7, 2024
0fe3ba7
LA: allow to initialize preconditioner from options
andrea-iob Jun 7, 2024
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11 changes: 8 additions & 3 deletions src/LA/system_solvers_large.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3169,12 +3169,14 @@ void SystemSolver::prepareKSP()

// Set up
if (setupNeeded) {
// Initialization
KSPSetFromOptions(m_KSP);

// Perform actions before preconditioner set up
prePreconditionerSetupActions();

// Initialize preconditioner from options
PC pc;
KSPGetPC(m_KSP, &pc);
PCSetFromOptions(pc);

// Set up preconditioner
setupPreconditioner();

Expand All @@ -3184,6 +3186,9 @@ void SystemSolver::prepareKSP()
// Perform actions before Krylov subspace method set up set up
preKrylovSetupActions();

// Initialize Krylov subspace from options
KSPSetFromOptions(m_KSP);

// Set up the Krylov subspace method
setupKrylov();

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