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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
62 /* These are not required by this file, but by the internal BLAS
63 * implementation. In principle, they could be included in each file
64 * that requires them, but this is simpler. Since the header is internal
65 * to the linearyalgebra/ module, the added complexity may not be worth it. */
66 #include "gromacs/utility/basedefinitions.h"
67 #include "gromacs/utility/real.h"
76 /* Double precision versions */
78 F77_FUNC(dasum, DASUM) (int *n, double *dx, int *incx);
81 F77_FUNC(daxpy, DAXPY) (int *n, double *da, double *dx, int *incx, double *dy, int *incy);
84 F77_FUNC(dcopy, DCOPY) (int *n, double *dx, int *incx, double *dy, int *incy);
87 F77_FUNC(ddot, DDOT) (int *n, double *dx, int *incx, double *dy, int *incy);
90 F77_FUNC(dgemm, DGEMM) (const char *transa, const char *transb, int *m, int *n, int *k,
91 double *alpha, double *a, int *lda, double *b, int *ldb,
92 double *beta, double *c, int *ldc);
95 F77_FUNC(dgemv, DGEMV) (const char *trans, int *m, int *n, double *alpha, double *a, int *lda,
96 double *x, int *incx, double *beta, double *y, int *incy);
99 F77_FUNC(dger, DGER) (int *m, int *n, double *alpha, double *x, int *incx,
100 double *y, int *incy, double *a, int *lda);
103 F77_FUNC(dnrm2, DNRM2) (int *n, double *x, int *incx);
106 F77_FUNC(drot, DROT) (int *n, double *dx, int *incx,
107 double *dy, int *incy, double *c, double *s);
110 F77_FUNC(dscal, DSCAL) (int *n, double *fact, double *dx, int *incx);
113 F77_FUNC(dswap, DSWAP) (int *n, double *dx, int *incx, double *dy, int *incy);
116 F77_FUNC(dsymv, DSYMV) (const char *uplo, int *n, double *alpha, double *a, int *lda,
117 double *x, int *incx, double *beta, double *y, int *incy);
120 F77_FUNC(dsyr2, DSYR2) (const char *uplo, int *n, double *alpha, double *x, int *incx,
121 double *y, int *incy, double *a, int *lda);
124 F77_FUNC(dsyr2k, DSYR2K) (const char *uplo, const char *trans, int *n, int *k, double *alpha, double *a,
125 int *lda, double *b, int *ldb, double *beta, double *c, int *ldc);
128 F77_FUNC(dtrmm, DTRMM) (const char *side, const char *uplo, const char *transa, const char *diag, int *m, int *n,
129 double *alpha, double *a, int *lda, double *b, int *ldb);
132 F77_FUNC(dtrmv, DTRMV) (const char *uplo, const char *trans, const char *diag, int *n,
133 double *a, int *lda, double *x, int *incx);
136 F77_FUNC(dtrsm, DTRSM) (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(idamax, IDAMAX) (int *n, double *dx, int *incx);
144 /* Single precision versions */
146 F77_FUNC(sasum, SASUM) (int *n, float *dx, int *incx);
149 F77_FUNC(saxpy, SAXPY) (int *n, float *da, float *dx, int *incx, float *dy, int *incy);
152 F77_FUNC(scopy, SCOPY) (int *n, float *dx, int *incx, float *dy, int *incy);
155 F77_FUNC(sdot, SDOT) (int *n, float *dx, int *incx, float *dy, int *incy);
158 F77_FUNC(sgemm, SGEMM) (const char *transa, const char *transb, int *m, int *n, int *k,
159 float *alpha, float *a, int *lda, float *b, int *ldb,
160 float *beta, float *c, int *ldc);
163 F77_FUNC(sgemv, SGEMV) (const char *trans, int *m, int *n, float *alpha, float *a, int *lda,
164 float *x, int *incx, float *beta, float *y, int *incy);
167 F77_FUNC(sger, SGER) (int *m, int *n, float *alpha, float *x, int *incx,
168 float *y, int *incy, float *a, int *lda);
171 F77_FUNC(snrm2, SNRM2) (int *n, float *x, int *incx);
174 F77_FUNC(srot, SROT) (int *n, float *dx, int *incx,
175 float *dy, int *incy, float *c, float *s);
178 F77_FUNC(sscal, SSCAL) (int *n, float *fact, float *dx, int *incx);
181 F77_FUNC(sswap, SSWAP) (int *n, float *dx, int *incx, float *dy, int *incy);
184 F77_FUNC(ssymv, SSYMV) (const char *uplo, int *n, float *alpha, float *a, int *lda,
185 float *x, int *incx, float *beta, float *y, int *incy);
188 F77_FUNC(ssyr2, SSYR2) (const char *uplo, int *n, float *alpha, float *x, int *incx,
189 float *y, int *incy, float *a, int *lda);
192 F77_FUNC(ssyr2k, SSYR2K) (const char *uplo, const char *trans, int *n, int *k, float *alpha, float *a,
193 int *lda, float *b, int *ldb, float *beta, float *c, int *ldc);
196 F77_FUNC(strmm, STRMM) (const char *side, const char *uplo, const char *transa, const char *diag, int *m, int *n,
197 float *alpha, float *a, int *lda, float *b, int *ldb);
200 F77_FUNC(strmv, STRMV) (const char *uplo, const char *trans, const char *diag, int *n,
201 float *a, int *lda, float *x, int *incx);
204 F77_FUNC(strsm, STRSM) (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(isamax, ISAMAX) (int *n, float *dx, int *incx);
217 #endif /* GMX_BLAS_H */