mirror of
https://gitlab.com/libeigen/eigen.git
synced 2024-12-27 07:29:52 +08:00
28539e7597
the modifications to initial code follow: * changed build system from plain makefiles to cmake * added eigen2 (4 versions: vec/novec and fixed/dynamic), GMM++, MTL4 interfaces * added "transposed matrix * vector" product action * updated blitz interface to use condensed products instead of hand coded loops * removed some deprecated interfaces * changed default storage order to column major for all libraries * new generic bench timer strategy which is supposed to be more accurate * various code clean-up
120 lines
3.3 KiB
C++
120 lines
3.3 KiB
C++
//=====================================================
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// Copyright (C) 2008 Gael Guennebaud <g.gael@free.fr>
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//=====================================================
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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//
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#ifndef GMM_INTERFACE_HH
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#define GMM_INTERFACE_HH
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#include <gmm/gmm.h>
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#include <vector>
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using namespace gmm;
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template<class real>
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class gmm_interface {
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public :
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typedef real real_type ;
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typedef std::vector<real> stl_vector;
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typedef std::vector<stl_vector > stl_matrix;
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typedef gmm::dense_matrix<real> gene_matrix;
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typedef stl_vector gene_vector;
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static inline std::string name( void )
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{
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return "gmm";
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}
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static void free_matrix(gene_matrix & A, int N){
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return ;
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}
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static void free_vector(gene_vector & B){
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return ;
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}
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static inline void matrix_from_stl(gene_matrix & A, stl_matrix & A_stl){
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A.resize(A_stl[0].size(),A_stl.size());
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for (int j=0; j<A_stl.size() ; j++){
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for (int i=0; i<A_stl[j].size() ; i++){
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A(i,j) = A_stl[j][i];
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}
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}
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}
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static inline void vector_from_stl(gene_vector & B, stl_vector & B_stl){
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B = B_stl;
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}
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static inline void vector_to_stl(gene_vector & B, stl_vector & B_stl){
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B_stl = B;
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}
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static inline void matrix_to_stl(gene_matrix & A, stl_matrix & A_stl){
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int N=A_stl.size();
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for (int j=0;j<N;j++){
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A_stl[j].resize(N);
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for (int i=0;i<N;i++){
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A_stl[j][i] = A(i,j);
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}
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}
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}
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static inline void matrix_matrix_product(const gene_matrix & A, const gene_matrix & B, gene_matrix & X, int N){
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gmm::mult(A,B, X);
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}
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static inline void transposed_matrix_matrix_product(const gene_matrix & A, const gene_matrix & B, gene_matrix & X, int N){
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gmm::mult(gmm::transposed(A),gmm::transposed(B), X);
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}
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static inline void ata_product(const gene_matrix & A, gene_matrix & X, int N){
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gmm::mult(gmm::transposed(A),A, X);
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}
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static inline void aat_product(const gene_matrix & A, gene_matrix & X, int N){
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gmm::mult(A,gmm::transposed(A), X);
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}
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static inline void matrix_vector_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N){
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gmm::mult(A,B,X);
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}
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static inline void atv_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N){
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gmm::mult(gmm::transposed(A),B,X);
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}
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static inline void axpy(const real coef, const gene_vector & X, gene_vector & Y, int N){
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gmm::add(gmm::scaled(X,coef), Y);
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}
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static inline void copy_matrix(const gene_matrix & source, gene_matrix & cible, int N){
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gmm::copy(source,cible);
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}
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static inline void copy_vector(const gene_vector & source, gene_vector & cible, int N){
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gmm::copy(source,cible);
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}
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};
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#endif
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