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39 * Header definitions for the standard BLAS library.
41 * This is the subset of BLAS routines used for the
42 * linear algebra operations in Gromacs.
43 * Do NOT use this for other purposes - we only provide this as a
44 * simple fallback/reference implementation when no optimized BLAS
45 * is present. If you need an implementation for your own code
46 * there are several much faster versions out there.
48 * All routines are compatible with the BLAS reference implementation,
49 * meaning they assume fortran-style matrix row/column organization.
51 * There is plenty of documentation for these routines available
52 * at http://www.netlib.org/blas , so there is no point in repeating
64 /* These are not required by this file, but by the internal BLAS
65 * implementation. In principle, they could be included in each file
66 * that requires them, but this is simpler. Since the header is internal
67 * to the linearyalgebra/ module, the added complexity may not be worth it. */
68 #include "gromacs/utility/basedefinitions.h"
69 #include "gromacs/utility/real.h"
71 /* Suppress Cygwin compiler warnings from using newlib version of
84 /* Double precision versions */
86 F77_FUNC(dasum, DASUM) (int *n, double *dx, int *incx);
89 F77_FUNC(daxpy, DAXPY) (int *n, double *da, double *dx, int *incx, double *dy, int *incy);
92 F77_FUNC(dcopy, DCOPY) (int *n, double *dx, int *incx, double *dy, int *incy);
95 F77_FUNC(ddot, DDOT) (int *n, double *dx, int *incx, double *dy, int *incy);
98 F77_FUNC(dgemm, DGEMM) (const char *transa, const char *transb, int *m, int *n, int *k,
99 double *alpha, double *a, int *lda, double *b, int *ldb,
100 double *beta, double *c, int *ldc);
103 F77_FUNC(dgemv, DGEMV) (const char *trans, int *m, int *n, double *alpha, double *a, int *lda,
104 double *x, int *incx, double *beta, double *y, int *incy);
107 F77_FUNC(dger, DGER) (int *m, int *n, double *alpha, double *x, int *incx,
108 double *y, int *incy, double *a, int *lda);
111 F77_FUNC(dnrm2, DNRM2) (int *n, double *x, int *incx);
114 F77_FUNC(drot, DROT) (int *n, double *dx, int *incx,
115 double *dy, int *incy, double *c, double *s);
118 F77_FUNC(dscal, DSCAL) (int *n, double *fact, double *dx, int *incx);
121 F77_FUNC(dswap, DSWAP) (int *n, double *dx, int *incx, double *dy, int *incy);
124 F77_FUNC(dsymv, DSYMV) (const char *uplo, int *n, double *alpha, double *a, int *lda,
125 double *x, int *incx, double *beta, double *y, int *incy);
128 F77_FUNC(dsyr2, DSYR2) (const char *uplo, int *n, double *alpha, double *x, int *incx,
129 double *y, int *incy, double *a, int *lda);
132 F77_FUNC(dsyr2k, DSYR2K) (const char *uplo, const char *trans, int *n, int *k, double *alpha, double *a,
133 int *lda, double *b, int *ldb, double *beta, double *c, int *ldc);
136 F77_FUNC(dtrmm, DTRMM) (const char *side, const char *uplo, const char *transa, const char *diag, int *m, int *n,
137 double *alpha, double *a, int *lda, double *b, int *ldb);
140 F77_FUNC(dtrmv, DTRMV) (const char *uplo, const char *trans, const char *diag, int *n,
141 double *a, int *lda, double *x, int *incx);
144 F77_FUNC(dtrsm, DTRSM) (const char *side, const char *uplo, const char *transa, const char *diag, int *m, int *n,
145 double *alpha, double *a, int *lda, double *b, int *ldb);
148 F77_FUNC(idamax, IDAMAX) (int *n, double *dx, int *incx);
152 /* Single precision versions */
154 F77_FUNC(sasum, SASUM) (int *n, float *dx, int *incx);
157 F77_FUNC(saxpy, SAXPY) (int *n, float *da, float *dx, int *incx, float *dy, int *incy);
160 F77_FUNC(scopy, SCOPY) (int *n, float *dx, int *incx, float *dy, int *incy);
163 F77_FUNC(sdot, SDOT) (int *n, float *dx, int *incx, float *dy, int *incy);
166 F77_FUNC(sgemm, SGEMM) (const char *transa, const char *transb, int *m, int *n, int *k,
167 float *alpha, float *a, int *lda, float *b, int *ldb,
168 float *beta, float *c, int *ldc);
171 F77_FUNC(sgemv, SGEMV) (const char *trans, int *m, int *n, float *alpha, float *a, int *lda,
172 float *x, int *incx, float *beta, float *y, int *incy);
175 F77_FUNC(sger, SGER) (int *m, int *n, float *alpha, float *x, int *incx,
176 float *y, int *incy, float *a, int *lda);
179 F77_FUNC(snrm2, SNRM2) (int *n, float *x, int *incx);
182 F77_FUNC(srot, SROT) (int *n, float *dx, int *incx,
183 float *dy, int *incy, float *c, float *s);
186 F77_FUNC(sscal, SSCAL) (int *n, float *fact, float *dx, int *incx);
189 F77_FUNC(sswap, SSWAP) (int *n, float *dx, int *incx, float *dy, int *incy);
192 F77_FUNC(ssymv, SSYMV) (const char *uplo, int *n, float *alpha, float *a, int *lda,
193 float *x, int *incx, float *beta, float *y, int *incy);
196 F77_FUNC(ssyr2, SSYR2) (const char *uplo, int *n, float *alpha, float *x, int *incx,
197 float *y, int *incy, float *a, int *lda);
200 F77_FUNC(ssyr2k, SSYR2K) (const char *uplo, const char *trans, int *n, int *k, float *alpha, float *a,
201 int *lda, float *b, int *ldb, float *beta, float *c, int *ldc);
204 F77_FUNC(strmm, STRMM) (const char *side, const char *uplo, const char *transa, const char *diag, int *m, int *n,
205 float *alpha, float *a, int *lda, float *b, int *ldb);
208 F77_FUNC(strmv, STRMV) (const char *uplo, const char *trans, const char *diag, int *n,
209 float *a, int *lda, float *x, int *incx);
212 F77_FUNC(strsm, STRSM) (const char *side, const char *uplo, const char *transa, const char *diag, int *m, int *n,
213 float *alpha, float *a, int *lda, float *b, int *ldb);
216 F77_FUNC(isamax, ISAMAX) (int *n, float *dx, int *incx);
225 #endif /* GMX_BLAS_H */