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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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6 changes: 5 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 @@ -28,6 +28,7 @@

// Project includes
#include "includes/define.h"
#include "includes/kratos_components.h"
#include "linear_solvers/iterative_solver.h"

#include <boost/property_tree/json_parser.hpp>
Expand Down Expand Up @@ -118,6 +119,8 @@ class AMGCL_NS_Solver : public LinearSolver< TSparseSpaceType,
//kratos specific settings
mTol = rParameters["inner_settings"]["solver"]["tol"].GetDouble();
mVerbosity=rParameters["verbosity"].GetInt();
const std::string pressure_var_name = rParameters["schur_variable"].GetString();
mpPressureVar = &KratosComponents<Variable<double>>::Get(pressure_var_name);
mndof = 1;

//pass settings to amgcl
Expand Down Expand Up @@ -408,7 +411,7 @@ class AMGCL_NS_Solver : public LinearSolver< TSparseSpaceType,
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() == *mpPressureVar);
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}
}

Expand All @@ -419,6 +422,7 @@ class AMGCL_NS_Solver : public LinearSolver< TSparseSpaceType,

double mTol;
int mVerbosity;
const Variable<double>* mpPressureVar = nullptr;
int mndof;
std::vector< char > mp;

Expand Down