124 lines
4.1 KiB
C++
124 lines
4.1 KiB
C++
//=====================================================
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// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.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) { return "gmm"; }
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static void free_matrix(gene_matrix& A, int N) { return; }
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static void free_vector(gene_vector& B) { return; }
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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) { B = B_stl; }
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static inline void vector_to_stl(gene_vector& B, stl_vector& B_stl) { B_stl = B; }
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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,
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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) { gmm::mult(gmm::transposed(A), A, X); }
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static inline void aat_product(const gene_matrix& A, gene_matrix& X, int N) { gmm::mult(A, gmm::transposed(A), X); }
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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 axpby(real a, const gene_vector& X, real b, gene_vector& Y, int N) {
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gmm::add(gmm::scaled(X, a), gmm::scaled(Y, b), Y);
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}
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static inline void copy_matrix(const gene_matrix& source, gene_matrix& cible, int N) { gmm::copy(source, cible); }
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static inline void copy_vector(const gene_vector& source, gene_vector& cible, int N) { gmm::copy(source, cible); }
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static inline void trisolve_lower(const gene_matrix& L, const gene_vector& B, gene_vector& X, int N) {
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gmm::copy(B, X);
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gmm::lower_tri_solve(L, X, false);
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}
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static inline void partial_lu_decomp(const gene_matrix& X, gene_matrix& R, int N) {
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gmm::copy(X, R);
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std::vector<int> ipvt(N);
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gmm::lu_factor(R, ipvt);
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}
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static inline void hessenberg(const gene_matrix& X, gene_matrix& R, int N) {
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gmm::copy(X, R);
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gmm::Hessenberg_reduction(R, X, false);
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}
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static inline void tridiagonalization(const gene_matrix& X, gene_matrix& R, int N) {
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gmm::copy(X, R);
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gmm::Householder_tridiagonalization(R, X, false);
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}
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};
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#endif
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