LAPACK 3.12.0
LAPACK: Linear Algebra PACKage
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◆ F77_dgemm()

void F77_dgemm ( CBLAS_INT layout,
char *  transpa,
char *  transpb,
CBLAS_INT m,
CBLAS_INT n,
CBLAS_INT k,
double *  alpha,
double *  a,
CBLAS_INT lda,
double *  b,
CBLAS_INT ldb,
double *  beta,
double *  c,
CBLAS_INT ldc 
)

Definition at line 14 of file c_dblas3.c.

16 {
17
18 double *A, *B, *C;
19 CBLAS_INT i,j,LDA, LDB, LDC;
20 CBLAS_TRANSPOSE transa, transb;
21
22 get_transpose_type(transpa, &transa);
23 get_transpose_type(transpb, &transb);
24
25 if (*layout == TEST_ROW_MJR) {
26 if (transa == CblasNoTrans) {
27 LDA = *k+1;
28 A = (double *)malloc( (*m)*LDA*sizeof( double ) );
29 for( i=0; i<*m; i++ )
30 for( j=0; j<*k; j++ )
31 A[i*LDA+j]=a[j*(*lda)+i];
32 }
33 else {
34 LDA = *m+1;
35 A = ( double* )malloc( LDA*(*k)*sizeof( double ) );
36 for( i=0; i<*k; i++ )
37 for( j=0; j<*m; j++ )
38 A[i*LDA+j]=a[j*(*lda)+i];
39 }
40 if (transb == CblasNoTrans) {
41 LDB = *n+1;
42 B = ( double* )malloc( (*k)*LDB*sizeof( double ) );
43 for( i=0; i<*k; i++ )
44 for( j=0; j<*n; j++ )
45 B[i*LDB+j]=b[j*(*ldb)+i];
46 }
47 else {
48 LDB = *k+1;
49 B = ( double* )malloc( LDB*(*n)*sizeof( double ) );
50 for( i=0; i<*n; i++ )
51 for( j=0; j<*k; j++ )
52 B[i*LDB+j]=b[j*(*ldb)+i];
53 }
54 LDC = *n+1;
55 C = ( double* )malloc( (*m)*LDC*sizeof( double ) );
56 for( j=0; j<*n; j++ )
57 for( i=0; i<*m; i++ )
58 C[i*LDC+j]=c[j*(*ldc)+i];
59
60 cblas_dgemm( CblasRowMajor, transa, transb, *m, *n, *k, *alpha, A, LDA,
61 B, LDB, *beta, C, LDC );
62 for( j=0; j<*n; j++ )
63 for( i=0; i<*m; i++ )
64 c[j*(*ldc)+i]=C[i*LDC+j];
65 free(A);
66 free(B);
67 free(C);
68 }
69 else if (*layout == TEST_COL_MJR)
70 cblas_dgemm( CblasColMajor, transa, transb, *m, *n, *k, *alpha, a, *lda,
71 b, *ldb, *beta, c, *ldc );
72 else
73 cblas_dgemm( UNDEFINED, transa, transb, *m, *n, *k, *alpha, a, *lda,
74 b, *ldb, *beta, c, *ldc );
75}
#define UNDEFINED
Definition c_dblas3.c:12
#define TEST_ROW_MJR
Definition c_dblas3.c:11
#define TEST_COL_MJR
Definition c_dblas3.c:10
CBLAS_TRANSPOSE
Definition cblas.h:40
@ CblasNoTrans
Definition cblas.h:40
@ CblasColMajor
Definition cblas.h:39
@ CblasRowMajor
Definition cblas.h:39
#define CBLAS_INT
Definition cblas.h:24
void cblas_dgemm(CBLAS_LAYOUT layout, CBLAS_TRANSPOSE TransA, CBLAS_TRANSPOSE TransB, const CBLAS_INT M, const CBLAS_INT N, const CBLAS_INT K, const double alpha, const double *A, const CBLAS_INT lda, const double *B, const CBLAS_INT ldb, const double beta, double *C, const CBLAS_INT ldc)
Definition cblas_dgemm.c:12
void get_transpose_type(char *type, CBLAS_TRANSPOSE *trans)
Definition auxiliary.c:8
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