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[Core] AMGCL NS - Allow using different var for pressure #11687

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merged 2 commits into from
Oct 17, 2023
Merged

[Core] AMGCL NS - Allow using different var for pressure #11687

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2e368fc
allow using different var for pressure
Oct 17, 2023
9497725
using pointer
Oct 17, 2023
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5 changes: 4 additions & 1 deletion kratos/linear_solvers/amgcl_ns_solver.h
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Original file line number Diff line number Diff line change
Expand Up @@ -118,6 +118,7 @@ class AMGCL_NS_Solver : public LinearSolver< TSparseSpaceType,
//kratos specific settings
mTol = rParameters["inner_settings"]["solver"]["tol"].GetDouble();
mVerbosity=rParameters["verbosity"].GetInt();
mPressureVarName = rParameters["schur_variable"].GetString();
mndof = 1;

//pass settings to amgcl
Expand Down Expand Up @@ -403,12 +404,13 @@ class AMGCL_NS_Solver : public LinearSolver< TSparseSpaceType,
//*****************************
//compute pressure mask
if(mp.size() != rA.size1()) mp.resize( rA.size1() );
const auto& r_pressure_var = KratosComponents<Variable<double>>::Get(mPressureVarName);
for (ModelPart::DofsArrayType::iterator it = rDofSet.begin(); it!=rDofSet.end(); it++)
{
const unsigned int eq_id = it->EquationId();
if( eq_id < rA.size1() )
{
mp[eq_id] = (it->GetVariable().Key() == PRESSURE);
mp[eq_id] = (it->GetVariable().Key() == r_pressure_var);
}
}

Expand All @@ -419,6 +421,7 @@ class AMGCL_NS_Solver : public LinearSolver< TSparseSpaceType,

double mTol;
int mVerbosity;
std::string mPressureVarName;
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int mndof;
std::vector< char > mp;

Expand Down