1 //===================================================== 2 // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr> 3 //===================================================== 4 // 5 // This program is free software; you can redistribute it and/or 6 // modify it under the terms of the GNU General Public License 7 // as published by the Free Software Foundation; either version 2 8 // of the License, or (at your option) any later version. 9 // 10 // This program is distributed in the hope that it will be useful, 11 // but WITHOUT ANY WARRANTY; without even the implied warranty of 12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 // GNU General Public License for more details. 14 // You should have received a copy of the GNU General Public License 15 // along with this program; if not, write to the Free Software 16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 17 // 18 #ifndef GMM_INTERFACE_HH 19 #define GMM_INTERFACE_HH 20 21 #include <gmm/gmm.h> 22 #include <vector> 23 24 using namespace gmm; 25 26 template<class real> 27 class gmm_interface { 28 29 public : 30 31 typedef real real_type ; 32 33 typedef std::vector<real> stl_vector; 34 typedef std::vector<stl_vector > stl_matrix; 35 36 typedef gmm::dense_matrix<real> gene_matrix; 37 typedef stl_vector gene_vector; 38 name(void)39 static inline std::string name( void ) 40 { 41 return "gmm"; 42 } 43 free_matrix(gene_matrix & A,int N)44 static void free_matrix(gene_matrix & A, int N){ 45 return ; 46 } 47 free_vector(gene_vector & B)48 static void free_vector(gene_vector & B){ 49 return ; 50 } 51 matrix_from_stl(gene_matrix & A,stl_matrix & A_stl)52 static inline void matrix_from_stl(gene_matrix & A, stl_matrix & A_stl){ 53 A.resize(A_stl[0].size(),A_stl.size()); 54 55 for (int j=0; j<A_stl.size() ; j++){ 56 for (int i=0; i<A_stl[j].size() ; i++){ 57 A(i,j) = A_stl[j][i]; 58 } 59 } 60 } 61 vector_from_stl(gene_vector & B,stl_vector & B_stl)62 static inline void vector_from_stl(gene_vector & B, stl_vector & B_stl){ 63 B = B_stl; 64 } 65 vector_to_stl(gene_vector & B,stl_vector & B_stl)66 static inline void vector_to_stl(gene_vector & B, stl_vector & B_stl){ 67 B_stl = B; 68 } 69 matrix_to_stl(gene_matrix & A,stl_matrix & A_stl)70 static inline void matrix_to_stl(gene_matrix & A, stl_matrix & A_stl){ 71 int N=A_stl.size(); 72 73 for (int j=0;j<N;j++){ 74 A_stl[j].resize(N); 75 for (int i=0;i<N;i++){ 76 A_stl[j][i] = A(i,j); 77 } 78 } 79 } 80 matrix_matrix_product(const gene_matrix & A,const gene_matrix & B,gene_matrix & X,int N)81 static inline void matrix_matrix_product(const gene_matrix & A, const gene_matrix & B, gene_matrix & X, int N){ 82 gmm::mult(A,B, X); 83 } 84 transposed_matrix_matrix_product(const gene_matrix & A,const gene_matrix & B,gene_matrix & X,int N)85 static inline void transposed_matrix_matrix_product(const gene_matrix & A, const gene_matrix & B, gene_matrix & X, int N){ 86 gmm::mult(gmm::transposed(A),gmm::transposed(B), X); 87 } 88 ata_product(const gene_matrix & A,gene_matrix & X,int N)89 static inline void ata_product(const gene_matrix & A, gene_matrix & X, int N){ 90 gmm::mult(gmm::transposed(A),A, X); 91 } 92 aat_product(const gene_matrix & A,gene_matrix & X,int N)93 static inline void aat_product(const gene_matrix & A, gene_matrix & X, int N){ 94 gmm::mult(A,gmm::transposed(A), X); 95 } 96 matrix_vector_product(gene_matrix & A,gene_vector & B,gene_vector & X,int N)97 static inline void matrix_vector_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N){ 98 gmm::mult(A,B,X); 99 } 100 atv_product(gene_matrix & A,gene_vector & B,gene_vector & X,int N)101 static inline void atv_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N){ 102 gmm::mult(gmm::transposed(A),B,X); 103 } 104 axpy(const real coef,const gene_vector & X,gene_vector & Y,int N)105 static inline void axpy(const real coef, const gene_vector & X, gene_vector & Y, int N){ 106 gmm::add(gmm::scaled(X,coef), Y); 107 } 108 axpby(real a,const gene_vector & X,real b,gene_vector & Y,int N)109 static inline void axpby(real a, const gene_vector & X, real b, gene_vector & Y, int N){ 110 gmm::add(gmm::scaled(X,a), gmm::scaled(Y,b), Y); 111 } 112 copy_matrix(const gene_matrix & source,gene_matrix & cible,int N)113 static inline void copy_matrix(const gene_matrix & source, gene_matrix & cible, int N){ 114 gmm::copy(source,cible); 115 } 116 copy_vector(const gene_vector & source,gene_vector & cible,int N)117 static inline void copy_vector(const gene_vector & source, gene_vector & cible, int N){ 118 gmm::copy(source,cible); 119 } 120 trisolve_lower(const gene_matrix & L,const gene_vector & B,gene_vector & X,int N)121 static inline void trisolve_lower(const gene_matrix & L, const gene_vector& B, gene_vector & X, int N){ 122 gmm::copy(B,X); 123 gmm::lower_tri_solve(L, X, false); 124 } 125 partial_lu_decomp(const gene_matrix & X,gene_matrix & R,int N)126 static inline void partial_lu_decomp(const gene_matrix & X, gene_matrix & R, int N){ 127 gmm::copy(X,R); 128 std::vector<int> ipvt(N); 129 gmm::lu_factor(R, ipvt); 130 } 131 hessenberg(const gene_matrix & X,gene_matrix & R,int N)132 static inline void hessenberg(const gene_matrix & X, gene_matrix & R, int N){ 133 gmm::copy(X,R); 134 gmm::Hessenberg_reduction(R,X,false); 135 } 136 tridiagonalization(const gene_matrix & X,gene_matrix & R,int N)137 static inline void tridiagonalization(const gene_matrix & X, gene_matrix & R, int N){ 138 gmm::copy(X,R); 139 gmm::Householder_tridiagonalization(R,X,false); 140 } 141 142 }; 143 144 #endif 145