Squashed 'third_party/eigen/' content from commit 61d72f6
Change-Id: Iccc90fa0b55ab44037f018046d2fcffd90d9d025
git-subtree-dir: third_party/eigen
git-subtree-split: 61d72f6383cfa842868c53e30e087b0258177257
diff --git a/bench/btl/libs/STL/STL_interface.hh b/bench/btl/libs/STL/STL_interface.hh
new file mode 100644
index 0000000..93e76bd
--- /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