include/gmx_blas.h

   1 /*
   2  *
   3  *                This source code is part of
   4  *
   5  *                 G   R   O   M   A   C   S
   6  *
   7  *          GROningen MAchine for Chemical Simulations
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   9  * Written by David van der Spoel, Erik Lindahl, Berk Hess, and others.
  10  * Copyright (c) 1991-2000, University of Groningen, The Netherlands.
  11  * Copyright (c) 2001-2008, The GROMACS development team,
  12  * check out http://www.gromacs.org for more information.
  13
  14  * This program is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU General Public License
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  34
  35 #ifndef _GMX_BLAS_H_
  36 #define _GMX_BLAS_H_
  37
  38 #ifdef HAVE_CONFIG_H
  39 #include <config.h>
  40 #endif
  41
  42
  43 #include "types/simple.h"
  44
  45
  46 /** @file
  47  *
  48  *  @brief Header definitions for the standard BLAS library.
  49  *
  50  * This is the subset of BLAS routines used for the
  51  * linear algebra operations in Gromacs.
  52  * Do NOT use this for other purposes - we only provide this as a
  53  * simple fallback/reference implementation when no optimized BLAS
  54  * is present. If you need an implementation for your own code
  55  * there are several much faster versions out there.
  56  *
  57  * All routines are compatible with the BLAS reference implementation,
  58  * meaning they assume fortran-style matrix row/column organization.
  59  *
  60  * There is plenty of documentation for these routines available
  61  * at http://www.netlib.org/blas , so there is no point in repeating
  62  * it here.
  63  */
  64
  65 #ifdef __cplusplus
  66 extern "C" {
  67 #endif
  68 #if 0
  69 }
  70 #endif
  71
  72 #ifndef F77_FUNC
  73 #define F77_FUNC(name,NAME) name ## _
  74 #endif
  75
  76
  77 /* Double precision versions */
  78 double
  79 F77_FUNC(dasum,DASUM)(int *n, double *dx, int *incx);
  80
  81 void
  82 F77_FUNC(daxpy,DAXPY)(int *n, double *da, double *dx, int *incx, double *dy, int *incy);
  83
  84 void
  85 F77_FUNC(dcopy,DCOPY)(int *n, double *dx, int *incx, double *dy, int *incy);
  86
  87 double
  88 F77_FUNC(ddot,DDOT)(int *n, double *dx, int *incx, double *dy, int *incy);
  89
  90 void
  91 F77_FUNC(dgemm,DGEMM)(const char *transa, const char *transb, int *m, int *n, int *k,
  92        double *alpha, double *a, int *lda, double *b, int *ldb,
  93        double *beta, double *c, int *ldc);
  94
  95 void
  96 F77_FUNC(dgemv,DGEMV)(const char *trans, int *m, int *n, double *alpha, double *a, int *lda,
  97        double *x, int *incx, double *beta, double *y, int *incy);
  98
  99 void
 100 F77_FUNC(dger,DGER)(int *m, int *n, double *alpha, double *x, int *incx,
 101       double *y, int *incy, double *a, int *lda);
 102
 103 double
 104 F77_FUNC(dnrm2,DNRM2)(int  *n, double *x, int *incx);
 105
 106 void
 107 F77_FUNC(drot,DROT)(int *n, double *dx, int *incx,
 108       double *dy, int *incy, double *c, double *s);
 109
 110 void
 111 F77_FUNC(dscal,DSCAL)(int *n, double *fact, double *dx, int *incx);
 112
 113 void
 114 F77_FUNC(dswap,DSWAP)(int *n, double *dx, int *incx, double *dy, int *incy);
 115
 116 void
 117 F77_FUNC(dsymv,DSYMV)(const char *uplo, int *n, double *alpha, double *a, int *lda,
 118        double *x, int *incx, double *beta, double *y, int *incy);
 119
 120 void
 121 F77_FUNC(dsyr2,DSYR2)(const char *uplo, int *n, double *alpha, double *x, int *incx,
 122        double *y, int *incy, double *a, int *lda);
 123
 124 void
 125 F77_FUNC(dsyr2k,DSYR2K)(const char *uplo, const char *trans, int *n, int *k, double *alpha, double *a,
 126         int *lda, double *b, int *ldb, double *beta, double *c, int *ldc);
 127
 128 void
 129 F77_FUNC(dtrmm,DTRMM)(const char *side, const char *uplo, const char *transa, const char *diag, int *m, int *n,
 130        double *alpha, double *a, int *lda, double *b, int *ldb);
 131
 132 void
 133 F77_FUNC(dtrmv,DTRMV)(const char *uplo, const char *trans, const char *diag, int *n,
 134        double *a, int *lda, double *x, int *incx);
 135
 136 void
 137 F77_FUNC(dtrsm,DTRSM)(const char *side, const char *uplo, const char *transa, const char *diag, int *m, int *n,
 138        double *alpha, double *a,int *lda, double *b, int *ldb);
 139
 140 int
 141 F77_FUNC(idamax,IDAMAX)(int *n, double *dx, int *incx);
 142
 143
 144
 145 /* Single precision versions */
 146 float
 147 F77_FUNC(sasum,SASUM)(int *n, float *dx, int *incx);
 148
 149 void
 150 F77_FUNC(saxpy,SAXPY)(int *n, float *da, float *dx, int *incx, float *dy, int *incy);
 151
 152 void
 153 F77_FUNC(scopy,SCOPY)(int *n, float *dx, int *incx, float *dy, int *incy);
 154
 155 float
 156 F77_FUNC(sdot,SDOT)(int *n, float *dx, int *incx, float *dy, int *incy);
 157
 158 void
 159 F77_FUNC(sgemm,SGEMM)(const char *transa, const char *transb, int *m, int *n, int *k,
 160        float *alpha, float *a, int *lda, float *b, int *ldb,
 161        float *beta, float *c, int *ldc);
 162
 163 void
 164 F77_FUNC(sgemv,SGEMV)(const char *trans, int *m, int *n, float *alpha, float *a, int *lda,
 165        float *x, int *incx, float *beta, float *y, int *incy);
 166
 167 void
 168 F77_FUNC(sger,SGER)(int *m, int *n, float *alpha, float *x, int *incx,
 169       float *y, int *incy, float *a, int *lda);
 170
 171 float
 172 F77_FUNC(snrm2,SNRM2)(int  *n, float *x, int *incx);
 173
 174 void
 175 F77_FUNC(srot,SROT)(int *n, float *dx, int *incx,
 176       float *dy, int *incy, float *c, float *s);
 177
 178 void
 179 F77_FUNC(sscal,SSCAL)(int *n, float *fact, float *dx, int *incx);
 180
 181 void
 182 F77_FUNC(sswap,SSWAP)(int *n, float *dx, int *incx, float *dy, int *incy);
 183
 184 void
 185 F77_FUNC(ssymv,SSYMV)(const char *uplo, int *n, float *alpha, float *a, int *lda,
 186        float *x, int *incx, float *beta, float *y, int *incy);
 187
 188 void
 189 F77_FUNC(ssyr2,SSYR2)(const char *uplo, int *n, float *alpha, float *x, int *incx,
 190        float *y, int *incy, float *a, int *lda);
 191
 192 void
 193 F77_FUNC(ssyr2k,SSYR2K)(const char *uplo, const char *trans, int *n, int *k, float *alpha, float *a,
 194         int *lda, float *b, int *ldb, float *beta, float *c, int *ldc);
 195
 196 void
 197 F77_FUNC(strmm,STRMM)(const char *side, const char *uplo, const char *transa, const char *diag, int *m, int *n,
 198        float *alpha, float *a, int *lda, float *b, int *ldb);
 199
 200 void
 201 F77_FUNC(strmv,STRMV)(const char *uplo, const char *trans, const char *diag, int *n,
 202        float *a, int *lda, float *x, int *incx);
 203
 204 void
 205 F77_FUNC(strsm,STRSM)(const char *side, const char *uplo, const char *transa, const char *diag, int *m, int *n,
 206        float *alpha, float *a,int *lda, float *b, int *ldb);
 207
 208 int
 209 F77_FUNC(isamax,ISAMAX)(int *n, float *dx, int *incx);
 210
 211
 212 #ifdef __cplusplus
 213 }
 214 #endif
 215
 216
 217
 218 #endif /* _BLAS_H_ */