/usr/include/trilinos/Galeri_StencilProblems_Helmholtz.hpp is in libtrilinos-galeri-dev 12.4.2-2.
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//
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// Galeri: Finite Element and Matrix Generation Package
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#ifndef GALERI_STENCILPROBLEMS_HELMHOLTZ_HPP
#define GALERI_STENCILPROBLEMS_HELMHOLTZ_HPP
#include <Teuchos_RCP.hpp>
#include "Galeri_Problem_Helmholtz.hpp"
#include "Galeri_XpetraMatrixTypes_Helmholtz.hpp"
namespace Galeri {
namespace Xpetra {
// ============================================= Helmholtz1D =============================================
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
class Helmholtz1DProblem : public Problem_Helmholtz<Map,Matrix,MultiVector> {
public:
Helmholtz1DProblem(Teuchos::ParameterList& list, const Teuchos::RCP<const Map>& map) : Problem_Helmholtz<Map,Matrix,MultiVector>(list, map) { }
Teuchos::RCP<Matrix> BuildMatrix();
std::pair< Teuchos::RCP<Matrix>, Teuchos::RCP<Matrix> > BuildMatrices();
};
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
Teuchos::RCP<Matrix> Helmholtz1DProblem<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix,MultiVector>::BuildMatrix() {
GlobalOrdinal nx = this->list_.get("nx", (GlobalOrdinal) -1);
double h = this->list_.get("h", 1.0);
double omega = this->list_.get("omega", 2.0*M_PI);
double shift = this->list_.get("shift", 0.5);
Scalar cpxshift(1.0,shift);
if (nx == -1)
nx = this->Map_->getGlobalNumElements();
this->A_ = TriDiag_Helmholtz<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix>(this->Map_, nx, h, omega, cpxshift);
this->A_->setObjectLabel(this->getObjectLabel());
return this->A_;
}
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
std::pair< Teuchos::RCP<Matrix>, Teuchos::RCP<Matrix> > Helmholtz1DProblem<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix,MultiVector>::BuildMatrices() {
GlobalOrdinal nx = this->list_.get("nx", (GlobalOrdinal) -1);
double h = this->list_.get("h", 1.0);
double omega = this->list_.get("omega", 2.0*M_PI);
double shift = this->list_.get("shift", 0.5);
Scalar cpxshift(1.0,shift);
if (nx == -1)
nx = this->Map_->getGlobalNumElements();
std::pair< Teuchos::RCP<Matrix>, Teuchos::RCP<Matrix> > system;
system = TriDiag_Helmholtz_Pair<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix>(this->Map_, nx, h, omega, cpxshift);
return system;
}
// ============================================= Helmholtz2D =============================================
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
class Helmholtz2DProblem : public Problem_Helmholtz<Map,Matrix,MultiVector> {
public:
Helmholtz2DProblem(Teuchos::ParameterList& list, const Teuchos::RCP<const Map>& map) : Problem_Helmholtz<Map,Matrix,MultiVector>(list, map) { }
Teuchos::RCP<Matrix> BuildMatrix();
std::pair< Teuchos::RCP<Matrix>, Teuchos::RCP<Matrix> > BuildMatrices();
};
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
Teuchos::RCP<Matrix> Helmholtz2DProblem<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix,MultiVector>::BuildMatrix() {
int model = this->list_.get("model", 0);
GlobalOrdinal nx = this->list_.get("nx", (GlobalOrdinal) -1);
GlobalOrdinal ny = this->list_.get("ny", (GlobalOrdinal) -1);
double h = this->list_.get("h", 1.0);
double delta = this->list_.get("delta", 1.0);
int PMLx_left = this->list_.get("PMLx_left", 0);
int PMLx_right = this->list_.get("PMLx_right", 0);
int PMLy_left = this->list_.get("PMLy_left", 0);
int PMLy_right = this->list_.get("PMLy_right", 0);
double omega = this->list_.get("omega", 2.0*M_PI);
double shift = this->list_.get("shift", 0.5);
Scalar cpxshift(1.0,shift);
if (nx == -1 || ny == -1) {
GlobalOrdinal n = this->Map_->getGlobalNumElements();
nx = (GlobalOrdinal)sqrt((double)n);
ny = nx;
TEUCHOS_TEST_FOR_EXCEPTION(nx*ny != n, std::logic_error, "You need to specify nx and ny.");
}
this->A_ = Cross2D_Helmholtz<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix>(this->Map_, nx, ny, h, delta,
PMLx_left, PMLx_right,
PMLy_left, PMLy_right,
omega, cpxshift, model);
this->A_->setObjectLabel(this->getObjectLabel());
return this->A_;
}
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
std::pair< Teuchos::RCP<Matrix>, Teuchos::RCP<Matrix> > Helmholtz2DProblem<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix,MultiVector>::BuildMatrices() {
int model = this->list_.get("model", 0);
GlobalOrdinal nx = this->list_.get("nx", (GlobalOrdinal) -1);
GlobalOrdinal ny = this->list_.get("ny", (GlobalOrdinal) -1);
double h = this->list_.get("h", 1.0);
double delta = this->list_.get("delta", 1.0);
int PMLx_left = this->list_.get("PMLx_left", 0);
int PMLx_right = this->list_.get("PMLx_right", 0);
int PMLy_left = this->list_.get("PMLy_left", 0);
int PMLy_right = this->list_.get("PMLy_right", 0);
double omega = this->list_.get("omega", 2.0*M_PI);
double shift = this->list_.get("shift", 0.5);
Scalar cpxshift(1.0,shift);
if (nx == -1 || ny == -1) {
GlobalOrdinal n = this->Map_->getGlobalNumElements();
nx = (GlobalOrdinal)sqrt((double)n);
ny = nx;
TEUCHOS_TEST_FOR_EXCEPTION(nx*ny != n, std::logic_error, "You need to specify nx and ny.");
}
std::pair< Teuchos::RCP<Matrix>, Teuchos::RCP<Matrix> > system;
system = Cross2D_Helmholtz_Pair<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix>(this->Map_, nx, ny, h, delta,
PMLx_left, PMLx_right,
PMLy_left, PMLy_right,
omega, cpxshift, model);
return system;
}
// ============================================= Helmholtz3D =============================================
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
class Helmholtz3DProblem : public Problem_Helmholtz<Map,Matrix,MultiVector> {
public:
Helmholtz3DProblem(Teuchos::ParameterList& list, const Teuchos::RCP<const Map>& map) : Problem_Helmholtz<Map,Matrix,MultiVector>(list, map) { }
Teuchos::RCP<Matrix> BuildMatrix();
std::pair< Teuchos::RCP<Matrix>, Teuchos::RCP<Matrix> > BuildMatrices();
};
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
Teuchos::RCP<Matrix> Helmholtz3DProblem<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix,MultiVector>::BuildMatrix() {
int model = this->list_.get("model", 0);
GlobalOrdinal nx = this->list_.get("nx", (GlobalOrdinal) -1);
GlobalOrdinal ny = this->list_.get("ny", (GlobalOrdinal) -1);
GlobalOrdinal nz = this->list_.get("nz", (GlobalOrdinal) -1);
double h = this->list_.get("h", 1.0);
double delta = this->list_.get("delta", 1.0);
int PMLx_left = this->list_.get("PMLx_left", 0);
int PMLx_right = this->list_.get("PMLx_right", 0);
int PMLy_left = this->list_.get("PMLy_left", 0);
int PMLy_right = this->list_.get("PMLy_right", 0);
int PMLz_left = this->list_.get("PMLz_left", 0);
int PMLz_right = this->list_.get("PMLz_right", 0);
double omega = this->list_.get("omega", 2.0*M_PI);
double shift = this->list_.get("shift", 0.5);
Scalar cpxshift(1.0,shift);
if (nx == -1 || ny == -1 || nz == -1) {
GlobalOrdinal n = this->Map_->getGlobalNumElements();
nx = (GlobalOrdinal) Teuchos::ScalarTraits<double>::pow(n, 0.33334);
ny = nx; nz = nx;
TEUCHOS_TEST_FOR_EXCEPTION(nx * ny * nz != n, std::logic_error, "You need to specify nx, ny, and nz");
}
this->A_ = Cross3D_Helmholtz<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix>(this->Map_, nx, ny, nz, h, delta,
PMLx_left, PMLx_right,
PMLy_left, PMLy_right,
PMLz_left, PMLz_right,
omega, cpxshift, model);
this->A_->setObjectLabel(this->getObjectLabel());
return this->A_;
}
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
std::pair< Teuchos::RCP<Matrix>, Teuchos::RCP<Matrix> > Helmholtz3DProblem<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix,MultiVector>::BuildMatrices() {
int model = this->list_.get("model", 0);
GlobalOrdinal nx = this->list_.get("nx", (GlobalOrdinal) -1);
GlobalOrdinal ny = this->list_.get("ny", (GlobalOrdinal) -1);
GlobalOrdinal nz = this->list_.get("nz", (GlobalOrdinal) -1);
double h = this->list_.get("h", 1.0);
double delta = this->list_.get("delta", 1.0);
int PMLx_left = this->list_.get("PMLx_left", 0);
int PMLx_right = this->list_.get("PMLx_right", 0);
int PMLy_left = this->list_.get("PMLy_left", 0);
int PMLy_right = this->list_.get("PMLy_right", 0);
int PMLz_left = this->list_.get("PMLz_left", 0);
int PMLz_right = this->list_.get("PMLz_right", 0);
double omega = this->list_.get("omega", 2.0*M_PI);
double shift = this->list_.get("shift", 0.5);
Scalar cpxshift(1.0,shift);
if (nx == -1 || ny == -1 || nz == -1) {
GlobalOrdinal n = this->Map_->getGlobalNumElements();
nx = (GlobalOrdinal) Teuchos::ScalarTraits<double>::pow(n, 0.33334);
ny = nx; nz = nx;
TEUCHOS_TEST_FOR_EXCEPTION(nx * ny * nz != n, std::logic_error, "You need to specify nx, ny, and nz");
}
std::pair< Teuchos::RCP<Matrix>, Teuchos::RCP<Matrix> > system;
system = Cross3D_Helmholtz_Pair<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix>(this->Map_, nx, ny, nz, h, delta,
PMLx_left, PMLx_right,
PMLy_left, PMLy_right,
PMLz_left, PMLz_right,
omega, cpxshift, model);
return system;
}
} // namespace Xpetra
} // namespace Galeri
#endif // GALERI_STENCILPROBLEMS_HELMHOLTZ_HPP
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