btl/libs/BLAS/blas_interface_impl.hh


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96

//=====================================================
// Copyright (C) 2011 Andrea Arteaga <andyspiros@gmail.com>
//=====================================================
//
// 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.
//

#define BLAS_FUNC(NAME) CAT(CAT(SCALAR_PREFIX,NAME),_)

template<> class blas_interface<SCALAR> : public c_interface_base<SCALAR>
{

public :
  
  static SCALAR fone;
  static SCALAR fzero;

  static inline std::string name()
  {
    return MAKE_STRING(CBLASNAME);
  }

  static inline void matrix_vector_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N){
    BLAS_FUNC(gemv)(&notrans,&N,&N,&fone,A,&N,B,&intone,&fzero,X,&intone);
  }

  static inline void symv(gene_matrix & A, gene_vector & B, gene_vector & X, int N){
    BLAS_FUNC(symv)(&lower, &N,&fone,A,&N,B,&intone,&fzero,X,&intone);
  }

  static inline void syr2(gene_matrix & A, gene_vector & B, gene_vector & X, int N){
    BLAS_FUNC(syr2)(&lower,&N,&fone,B,&intone,X,&intone,A,&N);
  }

  static inline void ger(gene_matrix & A, gene_vector & X, gene_vector & Y, int N){
    BLAS_FUNC(ger)(&N,&N,&fone,X,&intone,Y,&intone,A,&N);
  }

  static inline void rot(gene_vector & A,  gene_vector & B, SCALAR c, SCALAR s, int N){
    BLAS_FUNC(rot)(&N,A,&intone,B,&intone,&c,&s);
  }

  static inline void atv_product(gene_matrix & A, gene_vector & B, gene_vector & X, int N){
    BLAS_FUNC(gemv)(&trans,&N,&N,&fone,A,&N,B,&intone,&fzero,X,&intone);
  }

  static inline void matrix_matrix_product(gene_matrix & A, gene_matrix & B, gene_matrix & X, int N){
    BLAS_FUNC(gemm)(&notrans,&notrans,&N,&N,&N,&fone,A,&N,B,&N,&fzero,X,&N);
  }

  static inline void transposed_matrix_matrix_product(gene_matrix & A, gene_matrix & B, gene_matrix & X, int N){
    BLAS_FUNC(gemm)(&notrans,&notrans,&N,&N,&N,&fone,A,&N,B,&N,&fzero,X,&N);
  }

  static inline void aat_product(gene_matrix & A, gene_matrix & X, int N){
    BLAS_FUNC(syrk)(&lower,&notrans,&N,&N,&fone,A,&N,&fzero,X,&N);
  }

  static inline void axpy(SCALAR coef, const gene_vector & X, gene_vector & Y, int N){
    BLAS_FUNC(axpy)(&N,&coef,X,&intone,Y,&intone);
  }

  static inline void axpby(SCALAR a, const gene_vector & X, SCALAR b, gene_vector & Y, int N){
    BLAS_FUNC(scal)(&N,&b,Y,&intone);
    BLAS_FUNC(axpy)(&N,&a,X,&intone,Y,&intone);
  }

  static inline void trisolve_lower(const gene_matrix & L, const gene_vector& B, gene_vector & X, int N){
    BLAS_FUNC(copy)(&N, B, &intone, X, &intone);
    BLAS_FUNC(trsv)(&lower, &notrans, &nonunit, &N, L, &N, X, &intone);
  }

  static inline void trisolve_lower_matrix(const gene_matrix & L, const gene_matrix& B, gene_matrix & X, int N){
    BLAS_FUNC(copy)(&N, B, &intone, X, &intone);
    BLAS_FUNC(trsm)(&right, &lower, &notrans, &nonunit, &N, &N, &fone, L, &N, X, &N);
  }

  static inline void trmm(gene_matrix & A, gene_matrix & B, gene_matrix & X, int N){
    BLAS_FUNC(trmm)(&left, &lower, &notrans,&nonunit, &N,&N,&fone,A,&N,B,&N);
  }

};

SCALAR blas_interface<SCALAR>::fone = SCALAR(1);
SCALAR blas_interface<SCALAR>::fzero = SCALAR(0);