cart-elc

Source code for CART-ELC
git clone git://git.laack.co/cart-elc.git
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blaze_interface.hh (4122B)

      1 //=====================================================
      2 // Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
      3 //=====================================================
      4 //
      5 // This program is free software; you can redistribute it and/or
      6 // modify it under the terms of the GNU General Public License
      7 // as published by the Free Software Foundation; either version 2
      8 // of the License, or (at your option) any later version.
      9 //
     10 // This program is distributed in the hope that it will be useful,
     11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
     12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13 // GNU General Public License for more details.
     14 // You should have received a copy of the GNU General Public License
     15 // along with this program; if not, write to the Free Software
     16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
     17 //
     18 #ifndef BLAZE_INTERFACE_HH
     19 #define BLAZE_INTERFACE_HH
     20 
     21 #include <blaze/Math.h>
     22 #include <blaze/Blaze.h>
     23 #include <Eigen/Core>
     24 // using namespace blaze;
     25 
     26 #include <vector>
     27 
     28 template<class real>
     29 class blaze_interface {
     30 
     31 public :
     32 
     33   typedef real real_type ;
     34 
     35   typedef std::vector<real>        stl_vector;
     36   typedef std::vector<stl_vector > stl_matrix;
     37 
     38   typedef blaze::DynamicMatrix<real,blaze::columnMajor>  gene_matrix;
     39   typedef blaze::DynamicVector<real>  gene_vector;
     40 
     41   static inline std::string name() { return "blaze"; }
     42 
     43   static void free_matrix(gene_matrix & A, int N){
     44     return ;
     45   }
     46 
     47   static void free_vector(gene_vector & B){
     48     return ;
     49   }
     50 
     51   static inline void matrix_from_stl(gene_matrix & A, stl_matrix & A_stl){
     52     A.resize(A_stl[0].size(), A_stl.size());
     53 
     54     for (int j=0; j<A_stl.size() ; j++){
     55       for (int i=0; i<A_stl[j].size() ; i++){
     56         A(i,j) = A_stl[j][i];
     57       }
     58     }
     59   }
     60 
     61   static inline void vector_from_stl(gene_vector & B, stl_vector & B_stl){
     62     B.resize(B_stl.size());
     63     for (int i=0; i<B_stl.size() ; i++){
     64       B[i] = B_stl[i];
     65     }
     66   }
     67 
     68   static inline void vector_to_stl(gene_vector & B, stl_vector & B_stl){
     69     for (int i=0; i<B_stl.size() ; i++){
     70       B_stl[i] = B[i];
     71     }
     72   }
     73 
     74   static inline void matrix_to_stl(gene_matrix & A, stl_matrix & A_stl){
     75     int N=A_stl.size();
     76     for (int j=0;j<N;j++){
     77       A_stl[j].resize(N);
     78       for (int i=0;i<N;i++){
     79         A_stl[j][i] = A(i,j);
     80       }
     81     }
     82   }
     83 
     84   static EIGEN_DONT_INLINE void matrix_matrix_product(const gene_matrix & A, const gene_matrix & B, gene_matrix & X, int N){
     85     X = (A*B);
     86   }
     87 
     88   static EIGEN_DONT_INLINE void transposed_matrix_matrix_product(const gene_matrix & A, const gene_matrix & B, gene_matrix & X, int N){
     89     X = (trans(A)*trans(B));
     90   }
     91 
     92   static EIGEN_DONT_INLINE void ata_product(const gene_matrix & A, gene_matrix & X, int N){
     93     X = (trans(A)*A);
     94   }
     95 
     96   static EIGEN_DONT_INLINE void aat_product(const gene_matrix & A, gene_matrix & X, int N){
     97     X = (A*trans(A));
     98   }
     99 
    100   static EIGEN_DONT_INLINE void matrix_vector_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N){
    101     X = (A*B);
    102   }
    103 
    104   static EIGEN_DONT_INLINE void atv_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N){
    105     X = (trans(A)*B);
    106   }
    107 
    108   static EIGEN_DONT_INLINE void axpy(const real coef, const gene_vector & X, gene_vector & Y, int N){
    109     Y += coef * X;
    110   }
    111 
    112   static EIGEN_DONT_INLINE void axpby(real a, const gene_vector & X, real b, gene_vector & Y, int N){
    113     Y = a*X + b*Y;
    114   }
    115 
    116 //   static inline void cholesky(const gene_matrix & X, gene_matrix & C, int N){
    117 //     C = X;
    118 //     recursive_cholesky(C);
    119 //   }
    120 
    121 //   static inline void lu_decomp(const gene_matrix & X, gene_matrix & R, int N){
    122 //     R = X;
    123 //     std::vector<int> ipvt(N);
    124 //     lu_factor(R, ipvt);
    125 //   }
    126 
    127 //   static inline void trisolve_lower(const gene_matrix & L, const gene_vector& B, gene_vector & X, int N){
    128 //     X = lower_trisolve(L, B);
    129 //   }
    130 
    131   static inline void copy_matrix(const gene_matrix & source, gene_matrix & cible, int N){
    132     cible = source;
    133   }
    134 
    135   static inline void copy_vector(const gene_vector & source, gene_vector & cible, int N){
    136     cible = source;
    137   }
    138 
    139 };
    140 
    141 #endif