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ConstantSparsityProjectionMethod.h
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ConstantSparsityProjectionMethod.h
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/******************************************************************************
* SOFA, Simulation Open-Framework Architecture *
* (c) 2006 INRIA, USTL, UJF, CNRS, MGH *
* *
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License, or (at *
* your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, but WITHOUT *
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or *
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License *
* for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
*******************************************************************************
* Authors: The SOFA Team and external contributors (see Authors.txt) *
* *
* Contact information: contact@sofa-framework.org *
******************************************************************************/
#pragma once
#include <sofa/component/linearsystem/MatrixProjectionMethod.h>
#include <sofa/simulation/ParallelSparseMatrixProduct.h>
namespace sofa::component::linearsystem
{
/**
* Matrix prjection method computing the matrix projection taking advantage of the constant sparsity pattern
*/
template<class TMatrix>
class ConstantSparsityProjectionMethod : public MatrixProjectionMethod<TMatrix>
{
public:
SOFA_CLASS(SOFA_TEMPLATE(ConstantSparsityProjectionMethod, TMatrix), SOFA_TEMPLATE(MatrixProjectionMethod, TMatrix));
using PairMechanicalStates = typename BaseMatrixProjectionMethod<TMatrix>::PairMechanicalStates;
using Block = typename Inherit1::Block;
ConstantSparsityProjectionMethod();
~ConstantSparsityProjectionMethod() override;
Data<bool> d_parallelProduct;
void init() override;
void reinit() override;
protected:
void computeProjection(
const Eigen::Map<Eigen::SparseMatrix<Block, Eigen::RowMajor> > KMap,
const sofa::type::fixed_array<std::shared_ptr<TMatrix>, 2> J,
Eigen::SparseMatrix<Block, Eigen::RowMajor>& JT_K_J) override;
using K_Type = Eigen::Map<Eigen::SparseMatrix<Block, Eigen::RowMajor> >;
using J_Type = Eigen::Map<Eigen::SparseMatrix<Block, Eigen::RowMajor> >;
using KJ_Type = Eigen::SparseMatrix<Block, Eigen::ColMajor>;
using JT_Type = const Eigen::Transpose<const Eigen::Map<Eigen::SparseMatrix<Block, Eigen::RowMajor> > >;
using JTKJ_Type = Eigen::SparseMatrix<Block, Eigen::RowMajor>;
std::unique_ptr<linearalgebra::SparseMatrixProduct< K_Type, J_Type, KJ_Type> > m_matrixProductKJ;
std::unique_ptr<linearalgebra::SparseMatrixProduct< JT_Type, KJ_Type, JTKJ_Type> > m_matrixProductJTKJ;
};
#if !defined(SOFA_COMPONENT_LINEARSYSTEM_CONSTANTSPARSITYPROJECTIONMETHOD_CPP)
extern template class SOFA_COMPONENT_LINEARSYSTEM_API ConstantSparsityProjectionMethod<sofa::linearalgebra::CompressedRowSparseMatrix<SReal> >;
#endif
}