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sparse_matrix_aij.cc
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			/**
			* @file sparse_matrix_aij.cc
			*
			* @author Nicolas Richart <nicolas.richart@epfl.ch>
			*
			* @date Tue Aug 18 16:31:23 2015
			*
			* @brief Implementation of the AIJ sparse matrix
			*
			* @section LICENSE
			*
			* Copyright (©) 2010-2011 EPFL (Ecole Polytechnique Fédérale de Lausanne)
			* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
			*
			* Akantu 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 3 of the License, or (at your option) any
			* later version.
			*
			* Akantu 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 Akantu. If not, see <http://www.gnu.org/licenses/>.
			*
			*/

			/* -------------------------------------------------------------------------- */
			#include "sparse_matrix_aij.hh"
			#include "dof_manager_default.hh"
			#include "terms_to_assemble.hh"
			#include "dof_synchronizer.hh"
			/* -------------------------------------------------------------------------- */
			#include <fstream>
			/* -------------------------------------------------------------------------- */

			__BEGIN_AKANTU__

			/* -------------------------------------------------------------------------- */
			SparseMatrixAIJ::SparseMatrixAIJ(DOFManagerDefault & dof_manager,
			const MatrixType & matrix_type, const ID & id)
			: SparseMatrix(dof_manager, matrix_type, id), dof_manager(dof_manager),
			irn(0, 1, id + ":irn"), jcn(0, 1, id + ":jcn"), a(0, 1, id + ":a"),
			profile_release(0), value_release(0) {}

			/* -------------------------------------------------------------------------- */
			SparseMatrixAIJ::SparseMatrixAIJ(const SparseMatrixAIJ & matrix, const ID & id)
			: SparseMatrix(matrix, id), dof_manager(matrix.dof_manager),
			irn(matrix.irn, true, id + ":irn"), jcn(matrix.jcn, true, id + ":jcn"),
			a(matrix.a, true, id + ":a"), profile_release(0), value_release(0) {}

			/* -------------------------------------------------------------------------- */
			SparseMatrixAIJ::~SparseMatrixAIJ() {}

			/* -------------------------------------------------------------------------- */
			void SparseMatrixAIJ::applyBoundary(Real block_val) {
			AKANTU_DEBUG_IN();

			const Array<bool> & blocked_dofs = this->dof_manager.getGlobalBlockedDOFs();

			Array<Int>::const_scalar_iterator irn_val = irn.begin();
			Array<Int>::const_scalar_iterator jcn_val = jcn.begin();
			Array<Real>::scalar_iterator a_val = a.begin();

			for (UInt i = 0; i < nb_non_zero; ++i) {
			UInt ni = this->dof_manager.globalToLocalEquationNumber(*irn_val - 1);
			UInt nj = this->dof_manager.globalToLocalEquationNumber(*jcn_val - 1);
			if (blocked_dofs(ni) \|\| blocked_dofs(nj)) {
			if (irn_val != jcn_val) {
			*a_val = 0;
			} else {
			if (this->dof_manager.isLocalOrMasterDOF(ni)) {
			*a_val = block_val;
			} else {
			*a_val = 0;
			}
			}
			}
			++irn_val;
			++jcn_val;
			++a_val;
			}

			this->value_release++;

			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			void SparseMatrixAIJ::saveProfile(const std::string & filename) const {
			AKANTU_DEBUG_IN();

			std::ofstream outfile;
			outfile.open(filename.c_str());

			outfile << "%%MatrixMarket matrix coordinate pattern";

			if (this->matrix_type == _symmetric)
			outfile << " symmetric";
			else
			outfile << " general";
			outfile << std::endl;

			UInt m = this->size;
			outfile << m << " " << m << " " << this->nb_non_zero << std::endl;

			for (UInt i = 0; i < this->nb_non_zero; ++i) {
			outfile << this->irn.storage()[i] << " " << this->jcn.storage()[i] << " 1"
			<< std::endl;
			}

			outfile.close();

			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			void SparseMatrixAIJ::saveMatrix(const std::string & filename) const {
			AKANTU_DEBUG_IN();

			std::ofstream outfile;
			outfile.precision(std::numeric_limits<Real>::digits10);

			outfile.open(filename.c_str());

			outfile << "%%MatrixMarket matrix coordinate real";

			if (this->matrix_type == _symmetric)
			outfile << " symmetric";
			else
			outfile << " general";
			outfile << std::endl;

			outfile << this->size << " " << this->size << " " << this->nb_non_zero
			<< std::endl;

			for (UInt i = 0; i < this->nb_non_zero; ++i) {
			outfile << this->irn(i) << " " << this->jcn(i) << " " << this->a(i)
			<< std::endl;
			}

			outfile.close();

			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			void SparseMatrixAIJ::matVecMul(const Array<Real> & x, Array<Real> & y,
			Real alpha, Real beta) const {
			AKANTU_DEBUG_IN();

			y *= beta;

			Array<Int>::const_scalar_iterator i_it = this->irn.storage();
			Array<Int>::const_scalar_iterator j_it = this->jcn.storage();
			Array<Real>::const_scalar_iterator a_it = this->a.storage();
			Array<Real>::const_scalar_iterator x_it = x.storage();
			Array<Real>::scalar_iterator y_it = y.storage();

			for (UInt k = 0; k < this->nb_non_zero; ++k, ++i_it, ++j_it, ++a_it) {
			Int i = this->dof_manager.globalToLocalEquationNumber(*i_it - 1);
			Int j = this->dof_manager.globalToLocalEquationNumber(*j_it - 1);
			const Real & A = *a_it;

			y_it[i] += alpha * A * x_it[j];

			if ((this->matrix_type == _symmetric) && (i != j))
			y_it[j] += alpha * A * x_it[i];
			}

			if (this->dof_manager.hasSynchronizer())
			this->dof_manager.getSynchronizer().reduceSynchronize<AddOperation>(y);

			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			void SparseMatrixAIJ::copyContent(const SparseMatrix & matrix) {
			AKANTU_DEBUG_IN();
			const SparseMatrixAIJ & mat = dynamic_cast<const SparseMatrixAIJ &>(matrix);
			AKANTU_DEBUG_ASSERT(nb_non_zero == mat.getNbNonZero(),
			"The to matrix don't have the same profiles");
			memcpy(a.storage(), mat.getA().storage(), nb_non_zero * sizeof(Real));

			this->value_release++;

			AKANTU_DEBUG_OUT();
			}

			/* -------------------------------------------------------------------------- */
			template<class MatrixType>
			void SparseMatrixAIJ::addMeToTemplated(MatrixType & B, Real alpha) const {
			Array<Int>::const_scalar_iterator i_it = this->irn.begin();
			Array<Int>::const_scalar_iterator j_it = this->jcn.begin();
			Array<Real>::const_scalar_iterator a_it = this->a.begin();
			for (UInt n = 0; n < this->nb_non_zero; ++n, ++a_it, ++i_it, ++j_it) {
			const Int & i = *i_it;
			const Int & j = *j_it;
			const Real & A_ij = *a_it;
			B.addToMatrix(i - 1, j - 1, alpha * A_ij);
			}
			}

			/* -------------------------------------------------------------------------- */
			void SparseMatrixAIJ::addMeTo(SparseMatrix & B, Real alpha) const {
			if(SparseMatrixAIJ * B_aij = dynamic_cast<SparseMatrixAIJ *>(&B)) {
			this->addMeToTemplated<SparseMatrixAIJ>(*B_aij, alpha);
			} else {
			// this->addMeToTemplated<SparseMatrix>(*this, alpha);
			}
			}

			/* -------------------------------------------------------------------------- */
			void SparseMatrixAIJ::mul(Real alpha) {
			this->a *= alpha;
			this->value_release++;
			}

			/* -------------------------------------------------------------------------- */
			void SparseMatrixAIJ::clear() {
			a.set(0.);

			this->value_release++;
			}

			__END_AKANTU__

rAKA/src/solver/sparse_matrix_aij.cc945fff780988bugfixes/41-group-not…

sparse_matrix_aij.ccView Options

rAKA/src/solver/sparse_matrix_aij.cc
945fff780988bugfixes/41-group-not…

sparse_matrix_aij.cc
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