LAPACK 3.12.1
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.

20 {
21
22 double *A, *B, *C;
23 CBLAS_INT i,j,LDA, LDB, LDC;
24 CBLAS_TRANSPOSE transa, transb;
25
26 get_transpose_type(transpa, &transa);
27 get_transpose_type(transpb, &transb);
28
29 if (*layout == TEST_ROW_MJR) {
30 if (transa == CblasNoTrans) {
31 LDA = *k+1;
32 A = (double *)malloc( (*m)*LDA*sizeof( double ) );
33 for( i=0; i<*m; i++ )
34 for( j=0; j<*k; j++ )
35 A[i*LDA+j]=a[j*(*lda)+i];
36 }
37 else {
38 LDA = *m+1;
39 A = ( double* )malloc( LDA*(*k)*sizeof( double ) );
40 for( i=0; i<*k; i++ )
41 for( j=0; j<*m; j++ )
42 A[i*LDA+j]=a[j*(*lda)+i];
43 }
44 if (transb == CblasNoTrans) {
45 LDB = *n+1;
46 B = ( double* )malloc( (*k)*LDB*sizeof( double ) );
47 for( i=0; i<*k; i++ )
48 for( j=0; j<*n; j++ )
49 B[i*LDB+j]=b[j*(*ldb)+i];
50 }
51 else {
52 LDB = *k+1;
53 B = ( double* )malloc( LDB*(*n)*sizeof( double ) );
54 for( i=0; i<*n; i++ )
55 for( j=0; j<*k; j++ )
56 B[i*LDB+j]=b[j*(*ldb)+i];
57 }
58 LDC = *n+1;
59 C = ( double* )malloc( (*m)*LDC*sizeof( double ) );
60 for( j=0; j<*n; j++ )
61 for( i=0; i<*m; i++ )
62 C[i*LDC+j]=c[j*(*ldc)+i];
63
64 cblas_dgemm( CblasRowMajor, transa, transb, *m, *n, *k, *alpha, A, LDA,
65 B, LDB, *beta, C, LDC );
66 for( j=0; j<*n; j++ )
67 for( i=0; i<*m; i++ )
68 c[j*(*ldc)+i]=C[i*LDC+j];
69 free(A);
70 free(B);
71 free(C);
72 }
73 else if (*layout == TEST_COL_MJR)
74 cblas_dgemm( CblasColMajor, transa, transb, *m, *n, *k, *alpha, a, *lda,
75 b, *ldb, *beta, c, *ldc );
76 else
77 cblas_dgemm( UNDEFINED, transa, transb, *m, *n, *k, *alpha, a, *lda,
78 b, *ldb, *beta, c, *ldc );
79}
#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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