imported a reworked version of BTL (Benchmark for Templated Libraries).

the modifications to initial code follow:
* changed build system from plain makefiles to cmake
* added eigen2 (4 versions: vec/novec and fixed/dynamic), GMM++, MTL4 interfaces
* added "transposed matrix * vector" product action
* updated blitz interface to use condensed products instead of hand coded loops
* removed some deprecated interfaces
* changed default storage order to column major for all libraries
* new generic bench timer strategy which is supposed to be more accurate
* various code clean-up

4 files changed, 261 insertions, 0 deletions

diff --git a/bench/btl/generic_bench/utils/dump_file_x_y.hh b/bench/btl/generic_bench/utils/dump_file_x_y.hh
new file mode 100644
index 000000000..6b99dcb10
--- /dev/null
+++ b/bench/btl/generic_bench/utils/dump_file_x_y.hh
@@ -0,0 +1,47 @@
+//=====================================================
+// File   :  dump_file_x_y.hh
+// Author :  L. Plagne <laurent.plagne@edf.fr)>        
+// Copyright (C) EDF R&D,  lun sep 30 14:23:20 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 DUMP_FILE_X_Y_HH
+#define DUMP_FILE_X_Y_HH
+#include <fstream>
+#include <string>
+
+// The Vector class must satisfy the following part of STL vector concept :
+//            resize() method
+//            [] operator for seting element
+// the vector element must have the << operator define
+
+using namespace std;
+
+template<class Vector_A, class Vector_B>
+void dump_file_x_y(const Vector_A & X, const Vector_B & Y, const std::string & filename){
+  
+  ofstream outfile (filename.c_str(),ios::out) ;
+  int size=X.size();
+  
+  for (int i=0;i<size;i++){
+
+      outfile << X[i] << " " << Y[i] << endl ;
+
+  }
+
+  outfile.close();
+} 
+
+#endif
diff --git a/bench/btl/generic_bench/utils/size_lin_log.hh b/bench/btl/generic_bench/utils/size_lin_log.hh
new file mode 100644
index 000000000..bca3932ae
--- /dev/null
+++ b/bench/btl/generic_bench/utils/size_lin_log.hh
@@ -0,0 +1,70 @@
+//=====================================================
+// File   :  size_lin_log.hh
+// Author :  L. Plagne <laurent.plagne@edf.fr)>        
+// Copyright (C) EDF R&D,  mar déc 3 18:59:37 CET 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 SIZE_LIN_LOG
+#define SIZE_LIN_LOG
+
+#include "size_log.hh"
+
+template<class Vector>
+void size_lin_log(const int nb_point, const int size_min, const int size_max, Vector & X)
+{
+  int ten=10;
+  int nine=9;
+
+  X.resize(nb_point);
+
+  if (nb_point>ten){
+
+    for (int i=0;i<nine;i++){
+      
+      X[i]=i+1;
+
+    }
+
+    Vector log_size;
+    size_log(nb_point-nine,ten,size_max,log_size);
+
+    for (int i=0;i<nb_point-nine;i++){
+      
+      X[i+nine]=log_size[i];
+
+    }
+  }
+  else{
+
+    for (int i=0;i<nb_point;i++){
+      
+      X[i]=i+1;
+
+    }
+  }
+
+ //  for (int i=0;i<nb_point;i++){
+    
+//        INFOS("computed sizes : X["<<i<<"]="<<X[i]);
+    
+//   }
+
+}
+  
+#endif
+    
+
+
diff --git a/bench/btl/generic_bench/utils/size_log.hh b/bench/btl/generic_bench/utils/size_log.hh
new file mode 100644
index 000000000..13a3da7a8
--- /dev/null
+++ b/bench/btl/generic_bench/utils/size_log.hh
@@ -0,0 +1,54 @@
+//=====================================================
+// File   :  size_log.hh
+// Author :  L. Plagne <laurent.plagne@edf.fr)>        
+// Copyright (C) EDF R&D,  lun sep 30 14:23:17 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 SIZE_LOG
+#define SIZE_LOG
+
+#include "math.h"
+// The Vector class must satisfy the following part of STL vector concept :
+//            resize() method
+//            [] operator for seting element
+// the vector element are int compatible.
+template<class Vector>
+void size_log(const int nb_point, const int size_min, const int size_max, Vector & X)
+{
+  X.resize(nb_point);
+
+  float ls_min=log(float(size_min));
+  float ls_max=log(float(size_max));
+
+  float ls=0.0;
+
+  float delta_ls=(ls_max-ls_min)/(float(nb_point-1));
+
+  int size=0;
+
+  for (int i=0;i<nb_point;i++){
+
+    ls = ls_min + float(i)*delta_ls ;
+    
+    size=int(exp(ls)); 
+
+    X[i]=size;
+  }
+
+}
+
+
+#endif
diff --git a/bench/btl/generic_bench/utils/utilities.h b/bench/btl/generic_bench/utils/utilities.h
new file mode 100644
index 000000000..3c2acfb02
--- /dev/null
+++ b/bench/btl/generic_bench/utils/utilities.h
@@ -0,0 +1,90 @@
+//=============================================================================
+// File      : utilities.h
+// Created   : mar jun 19 13:18:14 CEST 2001
+// Author    : Antoine YESSAYAN, Paul RASCLE, EDF
+// Project   : SALOME
+// Copyright : EDF 2001
+// $Header$
+//=============================================================================
+
+/* ---  Definition macros file to print informations if _DEBUG_ is defined --- */
+
+# ifndef UTILITIES_H
+# define UTILITIES_H
+
+# include <stdlib.h>
+//# include <iostream> ok for gcc3.01
+# include <iostream>
+
+/* ---  INFOS is always defined (without _DEBUG_): to be used for warnings, with release version --- */
+
+# define HEREWEARE cout<<flush ; cerr << __FILE__ << " [" << __LINE__ << "] : " << flush ;
+# define INFOS(chain) {HEREWEARE ; cerr << chain << endl ;}
+# define PYSCRIPT(chain) {cout<<flush ; cerr << "---PYSCRIPT--- " << chain << endl ;}
+
+/* --- To print date and time of compilation of current source on stdout --- */
+
+# if defined ( __GNUC__ )
+# define COMPILER		"g++" ;
+# elif defined ( __sun )
+# define COMPILER		"CC" ;
+# elif defined ( __KCC )
+# define COMPILER		"KCC" ;
+# elif defined ( __PGI )
+# define COMPILER		"pgCC" ;
+# else
+# define COMPILER		"undefined" ;
+# endif
+
+# ifdef INFOS_COMPILATION
+# error INFOS_COMPILATION already defined
+# endif
+# define INFOS_COMPILATION	{\
+					cerr << flush;\
+					cout << __FILE__ ;\
+					cout << " [" << __LINE__ << "] : " ;\
+					cout << "COMPILED with " << COMPILER ;\
+					cout << ", " << __DATE__ ; \
+					cout << " at " << __TIME__ << endl ;\
+					cout << "\n\n" ;\
+					cout << flush ;\
+				}
+
+# ifdef _DEBUG_
+
+/* --- the following MACROS are useful at debug time --- */
+
+# define HERE cout<<flush ; cerr << "- Trace " << __FILE__ << " [" << __LINE__ << "] : " << flush ;
+# define SCRUTE(var) HERE ; cerr << #var << "=" << var << endl ;
+# define MESSAGE(chain) {HERE ; cerr << chain << endl ;}
+# define INTERRUPTION(code) HERE ; cerr << "INTERRUPTION return code= " << code << endl ; exit(code) ;
+
+# ifndef ASSERT
+# define ASSERT(condition) if (!(condition)){ HERE ; cerr << "CONDITION " << #condition << " NOT VERIFIED"<< endl ; INTERRUPTION(1) ;}
+# endif /* ASSERT */
+
+#define REPERE cout<<flush ; cerr << "   --------------" << endl << flush ;
+#define BEGIN_OF(chain) {REPERE ; HERE ; cerr << "Begin of: " << chain << endl ; REPERE ; }
+#define END_OF(chain) {REPERE ; HERE ; cerr << "Normal end of: " << chain << endl ; REPERE ; }
+
+
+
+# else /* ifdef _DEBUG_*/
+
+# define HERE
+# define SCRUTE(var)
+# define MESSAGE(chain)
+# define INTERRUPTION(code)
+
+# ifndef ASSERT
+# define ASSERT(condition)
+# endif /* ASSERT */
+
+#define REPERE
+#define BEGIN_OF(chain)
+#define END_OF(chain)
+
+
+# endif /* ifdef _DEBUG_*/
+
+# endif /* ifndef UTILITIES_H */