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Diffstat (limited to 'bench/btl/libs/STL/STL_interface.hh')
| -rw-r--r-- | bench/btl/libs/STL/STL_interface.hh | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/bench/btl/libs/STL/STL_interface.hh b/bench/btl/libs/STL/STL_interface.hh new file mode 100644 index 000000000..93e76bd55 --- /dev/null +++ b/bench/btl/libs/STL/STL_interface.hh @@ -0,0 +1,244 @@ +//===================================================== +// File : STL_interface.hh +// Author : L. Plagne <laurent.plagne@edf.fr)> +// Copyright (C) EDF R&D, lun sep 30 14:23:24 CEST 2002 +//===================================================== +// +// 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 STL_INTERFACE_HH +#define STL_INTERFACE_HH +#include <string> +#include <vector> +#include "utilities.h" + +using namespace std; + +template<class real> +class STL_interface{ + +public : + + typedef real real_type ; + + typedef std::vector<real> stl_vector; + typedef std::vector<stl_vector > stl_matrix; + + typedef stl_matrix gene_matrix; + + typedef stl_vector gene_vector; + + static inline std::string name( void ) + { + return "STL"; + } + + static void free_matrix(gene_matrix & A, int N){} + + static void free_vector(gene_vector & B){} + + static inline void matrix_from_stl(gene_matrix & A, stl_matrix & A_stl){ + A = A_stl; + } + + 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){ + A_stl = A ; + } + + static inline void copy_vector(const gene_vector & source, gene_vector & cible, int N){ + for (int i=0;i<N;i++){ + cible[i]=source[i]; + } + } + + + static inline void copy_matrix(const gene_matrix & source, gene_matrix & cible, int N){ + for (int i=0;i<N;i++) + for (int j=0;j<N;j++) + cible[i][j]=source[i][j]; + } + +// static inline void ata_product(const gene_matrix & A, gene_matrix & X, int N) +// { +// real somme; +// for (int j=0;j<N;j++){ +// for (int i=0;i<N;i++){ +// somme=0.0; +// for (int k=0;k<N;k++) +// somme += A[i][k]*A[j][k]; +// X[j][i]=somme; +// } +// } +// } + + static inline void aat_product(const gene_matrix & A, gene_matrix & X, int N) + { + real somme; + for (int j=0;j<N;j++){ + for (int i=0;i<N;i++){ + somme=0.0; + if(i>=j) + { + for (int k=0;k<N;k++){ + somme+=A[k][i]*A[k][j]; + } + X[j][i]=somme; + } + } + } + } + + + static inline void matrix_matrix_product(const gene_matrix & A, const gene_matrix & B, gene_matrix & X, int N) + { + real somme; + for (int j=0;j<N;j++){ + for (int i=0;i<N;i++){ + somme=0.0; + for (int k=0;k<N;k++) + somme+=A[k][i]*B[j][k]; + X[j][i]=somme; + } + } + } + + static inline void matrix_vector_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N) + { + real somme; + for (int i=0;i<N;i++){ + somme=0.0; + for (int j=0;j<N;j++) + somme+=A[j][i]*B[j]; + X[i]=somme; + } + } + + static inline void symv(gene_matrix & A, gene_vector & B, gene_vector & X, int N) + { + for (int j=0; j<N; ++j) + X[j] = 0; + for (int j=0; j<N; ++j) + { + real t1 = B[j]; + real t2 = 0; + X[j] += t1 * A[j][j]; + for (int i=j+1; i<N; ++i) { + X[i] += t1 * A[j][i]; + t2 += A[j][i] * B[i]; + } + X[j] += t2; + } + } + + static inline void syr2(gene_matrix & A, gene_vector & B, gene_vector & X, int N) + { + for (int j=0; j<N; ++j) + { + for (int i=j; i<N; ++i) + A[j][i] += B[i]*X[j] + B[j]*X[i]; + } + } + + static inline void ger(gene_matrix & A, gene_vector & X, gene_vector & Y, int N) + { + for (int j=0; j<N; ++j) + { + for (int i=j; i<N; ++i) + A[j][i] += X[i]*Y[j]; + } + } + + static inline void atv_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N) + { + real somme; + for (int i=0;i<N;i++){ + somme = 0.0; + for (int j=0;j<N;j++) + somme += A[i][j]*B[j]; + X[i] = somme; + } + } + + static inline void axpy(real coef, const gene_vector & X, gene_vector & Y, int N){ + for (int i=0;i<N;i++) + Y[i]+=coef*X[i]; + } + + static inline void axpby(real a, const gene_vector & X, real b, gene_vector & Y, int N){ + for (int i=0;i<N;i++) + Y[i] = a*X[i] + b*Y[i]; + } + + static inline void trisolve_lower(const gene_matrix & L, const gene_vector & B, gene_vector & X, int N){ + copy_vector(B,X,N); + for(int i=0; i<N; ++i) + { + X[i] /= L[i][i]; + real tmp = X[i]; + for (int j=i+1; j<N; ++j) + X[j] -= tmp * L[i][j]; + } + } + + static inline real norm_diff(const stl_vector & A, const stl_vector & B) + { + int N=A.size(); + real somme=0.0; + real somme2=0.0; + + for (int i=0;i<N;i++){ + real diff=A[i]-B[i]; + somme+=diff*diff; + somme2+=A[i]*A[i]; + } + return somme/somme2; + } + + static inline real norm_diff(const stl_matrix & A, const stl_matrix & B) + { + int N=A[0].size(); + real somme=0.0; + real somme2=0.0; + + for (int i=0;i<N;i++){ + for (int j=0;j<N;j++){ + real diff=A[i][j] - B[i][j]; + somme += diff*diff; + somme2 += A[i][j]*A[i][j]; + } + } + + return somme/somme2; + } + + static inline void display_vector(const stl_vector & A) + { + int N=A.size(); + for (int i=0;i<N;i++){ + INFOS("A["<<i<<"]="<<A[i]<<endl); + } + } + +}; + +#endif |