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

bench/btl/libs/C/CMakeLists.txt

@@ -0,0 +1,2 @@
+include_directories(${PROJECT_SOURCE_DIR}/libs/f77)
+btl_add_bench(btl_C main.cpp)

bench/btl/libs/C/C_interface.hh

@@ -0,0 +1,96 @@
+//=====================================================
+// File   :  C_interface.hh
+// Author :  L. Plagne <laurent.plagne@edf.fr)>
+// Copyright (C) EDF R&D,  lun sep 30 14:23:23 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 C_INTERFACE_HH
+#define C_INTERFACE_HH
+
+#include "f77_interface.hh"
+
+template<class real>
+class C_interface : public f77_interface_base<real> {
+
+public :
+
+  typedef typename f77_interface_base<real>::gene_matrix gene_matrix;
+  typedef typename f77_interface_base<real>::gene_vector gene_vector;
+
+  static inline std::string name() { return "C"; }
+
+  static inline void matrix_vector_product(const gene_matrix & A, const gene_vector & B, gene_vector & X, int N)
+  {
+    for (int i=0;i<N;i++)
+    {
+      real somme = 0.0;
+      for (int j=0;j<N;j++)
+        somme += A[j*N+i] * B[j];
+      X[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 i=0;i<N;i++){
+      for (int j=0;j<N;j++){
+        somme=0.0;
+        for (int k=0;k<N;k++){
+          somme += A[i+k*N] * B[k+j*N];
+        }
+        X[i+j*N] = somme;
+      }
+    }
+  }
+
+  static inline void ata_product(const gene_matrix & A, gene_matrix & X, int N)
+  {
+
+    real somme;
+    for (int i=0;i<N;i++){
+      for (int j=0;j<N;j++){
+        somme=0.0;
+        for (int k=0;k<N;k++){
+          somme+=A[k+i*N]*A[k+j*N];
+        }
+        X[i+j*N]=somme;
+      }
+    }
+  }
+
+  static inline void aat_product(const gene_matrix & A, gene_matrix & X, int N){
+    real somme;
+    for (int i=0;i<N;i++){
+      for (int j=0;j<N;j++){
+        somme=0.0;
+        for (int k=0;k<N;k++){
+          somme+=A[i+k*N]*A[j+k*N];
+        }
+        X[i+j*N] = 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];
+  }
+
+
+};
+
+#endif

bench/btl/libs/C/main.cpp

@@ -0,0 +1,44 @@
+//=====================================================
+// File   :  main.cpp
+// Author :  L. Plagne <laurent.plagne@edf.fr)>
+// Copyright (C) EDF R&D,  lun sep 30 14:23:23 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.
+//
+#include "utilities.h"
+#include "bench.hh"
+#include "C_interface.hh"
+#include "action_matrix_vector_product.hh"
+#include "action_matrix_matrix_product.hh"
+#include "action_axpy.hh"
+#include "action_ata_product.hh"
+#include "action_aat_product.hh"
+//#include "action_lu_solve.hh"
+#include "timers/mixed_perf_analyzer.hh"
+
+int main()
+{
+
+  bench<Action_matrix_vector_product<C_interface<REAL_TYPE> > >(MIN_MV,MAX_MV,NB_POINT);
+  bench<Action_matrix_matrix_product<C_interface<REAL_TYPE> > >(MIN_MM,MAX_MM,NB_POINT);
+  bench<Action_aat_product<C_interface<REAL_TYPE> > >(MIN_MM,MAX_MM,NB_POINT);
+  bench<Action_ata_product<C_interface<REAL_TYPE> > >(MIN_MM,MAX_MM,NB_POINT);
+  bench<Action_axpy<C_interface<REAL_TYPE> > >(MIN_AXPY,MAX_AXPY,NB_POINT);
+
+
+  return 0;
+}
+
+