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dlma/eigen-3.4.0/bench/btl/libs/gmm/gmm_interface.hh
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gmm_interface.hh
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//=====================================================
// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
//=====================================================
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// 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 General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
#ifndef GMM_INTERFACE_HH
#define GMM_INTERFACE_HH
#include <gmm/gmm.h>
#include <vector>
using namespace gmm;
template<class real>
class gmm_interface {
public :
typedef real real_type ;
typedef std::vector<real> stl_vector;
typedef std::vector<stl_vector > stl_matrix;
typedef gmm::dense_matrix<real> gene_matrix;
typedef stl_vector gene_vector;
static inline std::string name( void )
{
return "gmm";
}
static void free_matrix(gene_matrix & A, int N){
return ;
}
static void free_vector(gene_vector & B){
return ;
}
static inline void matrix_from_stl(gene_matrix & A, stl_matrix & A_stl){
A.resize(A_stl[0].size(),A_stl.size());
for (int j=0; j<A_stl.size() ; j++){
for (int i=0; i<A_stl[j].size() ; i++){
A(i,j) = A_stl[j][i];
}
}
}
static inline void vector_from_stl(gene_vector & B, stl_vector & B_stl){
B = B_stl;
}
static inline void vector_to_stl(gene_vector & B, stl_vector & B_stl){
B_stl = B;
}
static inline void matrix_to_stl(gene_matrix & A, stl_matrix & A_stl){
int N=A_stl.size();
for (int j=0;j<N;j++){
A_stl[j].resize(N);
for (int i=0;i<N;i++){
A_stl[j][i] = A(i,j);
}
}
}
static inline void matrix_matrix_product(const gene_matrix & A, const gene_matrix & B, gene_matrix & X, int N){
gmm::mult(A,B, X);
}
static inline void transposed_matrix_matrix_product(const gene_matrix & A, const gene_matrix & B, gene_matrix & X, int N){
gmm::mult(gmm::transposed(A),gmm::transposed(B), X);
}
static inline void ata_product(const gene_matrix & A, gene_matrix & X, int N){
gmm::mult(gmm::transposed(A),A, X);
}
static inline void aat_product(const gene_matrix & A, gene_matrix & X, int N){
gmm::mult(A,gmm::transposed(A), X);
}
static inline void matrix_vector_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N){
gmm::mult(A,B,X);
}
static inline void atv_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N){
gmm::mult(gmm::transposed(A),B,X);
}
static inline void axpy(const real coef, const gene_vector & X, gene_vector & Y, int N){
gmm::add(gmm::scaled(X,coef), Y);
}
static inline void axpby(real a, const gene_vector & X, real b, gene_vector & Y, int N){
gmm::add(gmm::scaled(X,a), gmm::scaled(Y,b), Y);
}
static inline void copy_matrix(const gene_matrix & source, gene_matrix & cible, int N){
gmm::copy(source,cible);
}
static inline void copy_vector(const gene_vector & source, gene_vector & cible, int N){
gmm::copy(source,cible);
}
static inline void trisolve_lower(const gene_matrix & L, const gene_vector& B, gene_vector & X, int N){
gmm::copy(B,X);
gmm::lower_tri_solve(L, X, false);
}
static inline void partial_lu_decomp(const gene_matrix & X, gene_matrix & R, int N){
gmm::copy(X,R);
std::vector<int> ipvt(N);
gmm::lu_factor(R, ipvt);
}
static inline void hessenberg(const gene_matrix & X, gene_matrix & R, int N){
gmm::copy(X,R);
gmm::Hessenberg_reduction(R,X,false);
}
static inline void tridiagonalization(const gene_matrix & X, gene_matrix & R, int N){
gmm::copy(X,R);
gmm::Householder_tridiagonalization(R,X,false);
}
};
#endif
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