/usr/include/trilinos/Galeri_StencilProblems.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
// Copyright (2006) ETHZ/Sandia Corporation
//
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// Jonathan Hu (jhu@sandia.gov)
// Ray Tuminaro (rstumin@sandia.gov)
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// @HEADER
#ifndef GALERI_STENCILPROBLEMS_HPP
#define GALERI_STENCILPROBLEMS_HPP
#include <Teuchos_RCP.hpp>
#include "Galeri_Problem.hpp"
#include "Galeri_XpetraMatrixTypes.hpp"
namespace Galeri {
namespace Xpetra {
// ============================================= Laplace1D =============================================
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
class Laplace1DProblem : public Problem<Map,Matrix,MultiVector> {
public:
Laplace1DProblem(Teuchos::ParameterList& list, const Teuchos::RCP<const Map>& map) : Problem<Map,Matrix,MultiVector>(list, map) { }
Teuchos::RCP<Matrix> BuildMatrix();
};
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
Teuchos::RCP<Matrix> Laplace1DProblem<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix,MultiVector>::BuildMatrix() {
GlobalOrdinal nx = this->list_.get("nx", (GlobalOrdinal) -1);
if (nx == -1)
nx = this->Map_->getGlobalNumElements();
this->A_ = TriDiag<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix>(this->Map_, nx, 2.0, -1.0, -1.0);
this->A_->setObjectLabel(this->getObjectLabel());
return this->A_;
}
// ============================================= Laplace2D =============================================
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
class Laplace2DProblem : public Problem<Map,Matrix,MultiVector> {
public:
Laplace2DProblem(Teuchos::ParameterList& list, const Teuchos::RCP<const Map>& map) : Problem<Map,Matrix,MultiVector>(list, map) { }
Teuchos::RCP<Matrix> BuildMatrix();
};
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
Teuchos::RCP<Matrix> Laplace2DProblem<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix,MultiVector>::BuildMatrix() {
GlobalOrdinal nx = this->list_.get("nx", (GlobalOrdinal) -1);
GlobalOrdinal ny = this->list_.get("ny", (GlobalOrdinal) -1);
double one = 1.0;
Scalar stretchx = (Scalar) this->list_.get("stretchx", one);
Scalar stretchy = (Scalar) this->list_.get("stretchy", one);
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.");
}
bool keepBCs = this->list_.get("keepBCs", false);
Scalar east = (Scalar) -one / (stretchx*stretchx);
Scalar west = (Scalar) -one / (stretchx*stretchx);
Scalar north = (Scalar) -one / (stretchy*stretchy);
Scalar south = (Scalar) -one / (stretchy*stretchy);
Scalar center = -(east + west + north + south);
this->A_ = Cross2D<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix>(this->Map_, nx, ny, center, west, east, south, north, this->DirichletBC_, keepBCs);
this->A_->setObjectLabel(this->getObjectLabel());
return this->A_;
}
// ============================================= Laplace3D =============================================
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
class Laplace3DProblem : public Problem<Map,Matrix,MultiVector> {
public:
Laplace3DProblem(Teuchos::ParameterList& list, const Teuchos::RCP<const Map>& map) : Problem<Map,Matrix,MultiVector>(list, map) { }
Teuchos::RCP<Matrix> BuildMatrix();
};
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
Teuchos::RCP<Matrix> Laplace3DProblem<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix,MultiVector>::BuildMatrix() {
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 one = 1.0;
Scalar stretchx = (Scalar) this->list_.get("stretchx", one);
Scalar stretchy = (Scalar) this->list_.get("stretchy", one);
Scalar stretchz = (Scalar) this->list_.get("stretchz", one);
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");
}
bool keepBCs = this->list_.get("keepBCs", false);
Scalar right = (Scalar) -one / (stretchx*stretchx);
Scalar left = (Scalar) -one / (stretchx*stretchx);
Scalar front = (Scalar) -one / (stretchy*stretchy);
Scalar back = (Scalar) -one / (stretchy*stretchy);
Scalar up = (Scalar) -one / (stretchz*stretchz);
Scalar down = (Scalar) -one / (stretchz*stretchz);
Scalar center = -(right + left + front + back + up + down);
this->A_ = Cross3D<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix>(this->Map_, nx, ny, nz, center, left, right, front, back, down, up, this->DirichletBC_, keepBCs);
this->A_->setObjectLabel(this->getObjectLabel());
return this->A_;
}
// ============================================= Star2D =============================================
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
class Star2DProblem : public Problem<Map,Matrix,MultiVector> {
public:
Star2DProblem(Teuchos::ParameterList& list, const Teuchos::RCP<const Map>& map) : Problem<Map,Matrix,MultiVector>(list, map) { }
Teuchos::RCP<Matrix> BuildMatrix();
};
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
Teuchos::RCP<Matrix> Star2DProblem<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix,MultiVector>::BuildMatrix() {
GlobalOrdinal nx = this->list_.get("nx", (GlobalOrdinal) -1);
GlobalOrdinal ny = this->list_.get("ny", (GlobalOrdinal) -1);
Scalar a = this->list_.get("a", 8.0);
Scalar b = this->list_.get("b", -1.0);
Scalar c = this->list_.get("c", -1.0);
Scalar d = this->list_.get("d", -1.0);
Scalar e = this->list_.get("e", -1.0);
Scalar z1 = this->list_.get("z1", -1.0);
Scalar z2 = this->list_.get("z2", -1.0);
Scalar z3 = this->list_.get("z3", -1.0);
Scalar z4 = this->list_.get("z4", -1.0);
bool keepBCs = this->list_.get("keepBCs", false);
this->A_ = Star2D<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix>(this->Map_, nx, ny, a, b, c, d, e, z1, z2, z3, z4, this->DirichletBC_, keepBCs);
this->A_->setObjectLabel(this->getObjectLabel());
return this->A_;
}
// ============================================= BigStar2D =============================================
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
class BigStar2DProblem : public Problem<Map,Matrix,MultiVector> {
public:
BigStar2DProblem(Teuchos::ParameterList& list, const Teuchos::RCP<const Map>& map) : Problem<Map,Matrix,MultiVector>(list, map) { }
Teuchos::RCP<Matrix> BuildMatrix();
};
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
Teuchos::RCP<Matrix> BigStar2DProblem<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix,MultiVector>::BuildMatrix() {
GlobalOrdinal nx = this->list_.get("nx", (GlobalOrdinal) -1);
GlobalOrdinal ny = this->list_.get("ny", (GlobalOrdinal) -1);
Scalar a = this->list_.get("a", 20.0);
Scalar b = this->list_.get("b", -8.0);
Scalar c = this->list_.get("c", -8.0);
Scalar d = this->list_.get("d", -8.0);
Scalar e = this->list_.get("e", -8.0);
Scalar z1 = this->list_.get("z1", 2.0);
Scalar z2 = this->list_.get("z2", 2.0);
Scalar z3 = this->list_.get("z3", 2.0);
Scalar z4 = this->list_.get("z4", 2.0);
Scalar bb = this->list_.get("bb", 1.0);
Scalar cc = this->list_.get("cc", 1.0);
Scalar dd = this->list_.get("dd", 1.0);
Scalar ee = this->list_.get("ee", 1.0);
bool keepBCs = this->list_.get("keepBCs", false);
this->A_ = BigStar2D<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix>(this->Map_, nx, ny, a, b, c, d, e, z1, z2, z3, z4, bb, cc, dd, ee, this->DirichletBC_, keepBCs);
this->A_->setObjectLabel(this->getObjectLabel());
return this->A_;
}
// ============================================= Brick3D =============================================
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
class Brick3DProblem : public Problem<Map,Matrix,MultiVector> {
public:
Brick3DProblem(Teuchos::ParameterList& list, const Teuchos::RCP<const Map>& map) : Problem<Map,Matrix,MultiVector>(list, map) { }
Teuchos::RCP<Matrix> BuildMatrix();
};
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
Teuchos::RCP<Matrix> Brick3DProblem<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix,MultiVector>::BuildMatrix() {
GlobalOrdinal nx = this->list_.get("nx", (GlobalOrdinal) -1);
GlobalOrdinal ny = this->list_.get("ny", (GlobalOrdinal) -1);
GlobalOrdinal nz = this->list_.get("nz", (GlobalOrdinal) -1);
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");
}
bool keepBCs = this->list_.get("keepBCs", false);
this->A_ = Brick3D<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix>(this->Map_, nx, ny, nz, 26.0, -1.0, -1.0, -1.0, -1.0, -1.0, -1.0, this->DirichletBC_, keepBCs);
this->A_->setObjectLabel(this->getObjectLabel());
return this->A_;
}
// ============================================= Identity =============================================
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
class IdentityProblem : public Problem<Map,Matrix,MultiVector> {
public:
IdentityProblem(Teuchos::ParameterList& list, const Teuchos::RCP<const Map>& map) : Problem<Map,Matrix,MultiVector>(list, map) { }
Teuchos::RCP<Matrix> BuildMatrix();
};
template <typename Scalar, typename LocalOrdinal, typename GlobalOrdinal, typename Map, typename Matrix, typename MultiVector>
Teuchos::RCP<Matrix> IdentityProblem<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix,MultiVector>::BuildMatrix() {
Scalar a = this->list_.get("a", 1.0);
this->A_ = Identity<Scalar,LocalOrdinal,GlobalOrdinal,Map,Matrix>(this->Map_, a);
this->A_->setObjectLabel(this->getObjectLabel());
return this->A_;
}
} // namespace Xpetra
} // namespace Galeri
#endif // GALERI_STENCILPROBLEMS_HPP
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