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cs440-acg/ext/eigen/bench/btl/actions/action_hessenberg.hh

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+//=====================================================
+// File   :  action_hessenberg.hh
+// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
+//=====================================================
+//
+// 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 ACTION_HESSENBERG
+#define ACTION_HESSENBERG
+#include "utilities.h"
+#include "STL_interface.hh"
+#include <string>
+#include "init/init_function.hh"
+#include "init/init_vector.hh"
+#include "init/init_matrix.hh"
+
+using namespace std;
+
+template<class Interface>
+class Action_hessenberg {
+
+public :
+
+  // Ctor
+
+  Action_hessenberg( int size ):_size(size)
+  {
+    MESSAGE("Action_hessenberg Ctor");
+
+    // STL vector initialization
+    init_matrix<pseudo_random>(X_stl,_size);
+
+    init_matrix<null_function>(C_stl,_size);
+    init_matrix<null_function>(resu_stl,_size);
+
+    // generic matrix and vector initialization
+    Interface::matrix_from_stl(X_ref,X_stl);
+    Interface::matrix_from_stl(X,X_stl);
+    Interface::matrix_from_stl(C,C_stl);
+
+    _cost = 0;
+    for (int j=0; j<_size-2; ++j)
+    {
+      double r = std::max(0,_size-j-1);
+      double b = std::max(0,_size-j-2);
+      _cost += 6 + 3*b + r*r*4 + r*_size*4;
+    }
+  }
+
+  // invalidate copy ctor
+
+  Action_hessenberg( const  Action_hessenberg & )
+  {
+    INFOS("illegal call to Action_hessenberg Copy Ctor");
+    exit(1);
+  }
+
+  // Dtor
+
+  ~Action_hessenberg( void ){
+
+    MESSAGE("Action_hessenberg Dtor");
+
+    // deallocation
+    Interface::free_matrix(X_ref,_size);
+    Interface::free_matrix(X,_size);
+    Interface::free_matrix(C,_size);
+  }
+
+  // action name
+
+  static inline std::string name( void )
+  {
+    return "hessenberg_"+Interface::name();
+  }
+
+  double nb_op_base( void ){
+    return _cost;
+  }
+
+  inline void initialize( void ){
+    Interface::copy_matrix(X_ref,X,_size);
+  }
+
+  inline void calculate( void ) {
+      Interface::hessenberg(X,C,_size);
+  }
+
+  void check_result( void ){
+    // calculation check
+    Interface::matrix_to_stl(C,resu_stl);
+
+//     STL_interface<typename Interface::real_type>::hessenberg(X_stl,C_stl,_size);
+//
+//     typename Interface::real_type error=
+//       STL_interface<typename Interface::real_type>::norm_diff(C_stl,resu_stl);
+//
+//     if (error>1.e-6){
+//       INFOS("WRONG CALCULATION...residual=" << error);
+//       exit(0);
+//     }
+
+  }
+
+private :
+
+  typename Interface::stl_matrix X_stl;
+  typename Interface::stl_matrix C_stl;
+  typename Interface::stl_matrix resu_stl;
+
+  typename Interface::gene_matrix X_ref;
+  typename Interface::gene_matrix X;
+  typename Interface::gene_matrix C;
+
+  int _size;
+  double _cost;
+};
+
+template<class Interface>
+class Action_tridiagonalization {
+
+public :
+
+  // Ctor
+
+  Action_tridiagonalization( int size ):_size(size)
+  {
+    MESSAGE("Action_tridiagonalization Ctor");
+
+    // STL vector initialization
+    init_matrix<pseudo_random>(X_stl,_size);
+    
+    for(int i=0; i<_size; ++i)
+    {
+      for(int j=0; j<i; ++j)
+        X_stl[i][j] = X_stl[j][i];
+    }
+    
+    init_matrix<null_function>(C_stl,_size);
+    init_matrix<null_function>(resu_stl,_size);
+
+    // generic matrix and vector initialization
+    Interface::matrix_from_stl(X_ref,X_stl);
+    Interface::matrix_from_stl(X,X_stl);
+    Interface::matrix_from_stl(C,C_stl);
+
+    _cost = 0;
+    for (int j=0; j<_size-2; ++j)
+    {
+      double r = std::max(0,_size-j-1);
+      double b = std::max(0,_size-j-2);
+      _cost += 6. + 3.*b + r*r*8.;
+    }
+  }
+
+  // invalidate copy ctor
+
+  Action_tridiagonalization( const  Action_tridiagonalization & )
+  {
+    INFOS("illegal call to Action_tridiagonalization Copy Ctor");
+    exit(1);
+  }
+
+  // Dtor
+
+  ~Action_tridiagonalization( void ){
+
+    MESSAGE("Action_tridiagonalization Dtor");
+
+    // deallocation
+    Interface::free_matrix(X_ref,_size);
+    Interface::free_matrix(X,_size);
+    Interface::free_matrix(C,_size);
+  }
+
+  // action name
+
+  static inline std::string name( void ) { return "tridiagonalization_"+Interface::name(); }
+
+  double nb_op_base( void ){
+    return _cost;
+  }
+
+  inline void initialize( void ){
+    Interface::copy_matrix(X_ref,X,_size);
+  }
+
+  inline void calculate( void ) {
+      Interface::tridiagonalization(X,C,_size);
+  }
+
+  void check_result( void ){
+    // calculation check
+    Interface::matrix_to_stl(C,resu_stl);
+
+//     STL_interface<typename Interface::real_type>::tridiagonalization(X_stl,C_stl,_size);
+//
+//     typename Interface::real_type error=
+//       STL_interface<typename Interface::real_type>::norm_diff(C_stl,resu_stl);
+//
+//     if (error>1.e-6){
+//       INFOS("WRONG CALCULATION...residual=" << error);
+//       exit(0);
+//     }
+
+  }
+
+private :
+
+  typename Interface::stl_matrix X_stl;
+  typename Interface::stl_matrix C_stl;
+  typename Interface::stl_matrix resu_stl;
+
+  typename Interface::gene_matrix X_ref;
+  typename Interface::gene_matrix X;
+  typename Interface::gene_matrix C;
+
+  int _size;
+  double _cost;
+};
+
+#endif