LAPACK 3.12.1
LAPACK: Linear Algebra PACKage
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◆ F77_sgemm()

void F77_sgemm ( CBLAS_INT * layout,
char * transpa,
char * transpb,
CBLAS_INT * m,
CBLAS_INT * n,
CBLAS_INT * k,
float * alpha,
float * a,
CBLAS_INT * lda,
float * b,
CBLAS_INT * ldb,
float * beta,
float * c,
CBLAS_INT * ldc )

Definition at line 12 of file c_sblas3.c.

18 {
19
20 float *A, *B, *C;
21 CBLAS_INT i,j,LDA, LDB, LDC;
22 CBLAS_TRANSPOSE transa, transb;
23
24 get_transpose_type(transpa, &transa);
25 get_transpose_type(transpb, &transb);
26
27 if (*layout == TEST_ROW_MJR) {
28 if (transa == CblasNoTrans) {
29 LDA = *k+1;
30 A = (float *)malloc( (*m)*LDA*sizeof( float ) );
31 for( i=0; i<*m; i++ )
32 for( j=0; j<*k; j++ )
33 A[i*LDA+j]=a[j*(*lda)+i];
34 }
35 else {
36 LDA = *m+1;
37 A = ( float* )malloc( LDA*(*k)*sizeof( float ) );
38 for( i=0; i<*k; i++ )
39 for( j=0; j<*m; j++ )
40 A[i*LDA+j]=a[j*(*lda)+i];
41 }
42 if (transb == CblasNoTrans) {
43 LDB = *n+1;
44 B = ( float* )malloc( (*k)*LDB*sizeof( float ) );
45 for( i=0; i<*k; i++ )
46 for( j=0; j<*n; j++ )
47 B[i*LDB+j]=b[j*(*ldb)+i];
48 }
49 else {
50 LDB = *k+1;
51 B = ( float* )malloc( LDB*(*n)*sizeof( float ) );
52 for( i=0; i<*n; i++ )
53 for( j=0; j<*k; j++ )
54 B[i*LDB+j]=b[j*(*ldb)+i];
55 }
56 LDC = *n+1;
57 C = ( float* )malloc( (*m)*LDC*sizeof( float ) );
58 for( j=0; j<*n; j++ )
59 for( i=0; i<*m; i++ )
60 C[i*LDC+j]=c[j*(*ldc)+i];
61 cblas_sgemm( CblasRowMajor, transa, transb, *m, *n, *k, *alpha, A, LDA,
62 B, LDB, *beta, C, LDC );
63 for( j=0; j<*n; j++ )
64 for( i=0; i<*m; i++ )
65 c[j*(*ldc)+i]=C[i*LDC+j];
66 free(A);
67 free(B);
68 free(C);
69 }
70 else if (*layout == TEST_COL_MJR)
71 cblas_sgemm( CblasColMajor, transa, transb, *m, *n, *k, *alpha, a, *lda,
72 b, *ldb, *beta, c, *ldc );
73 else
74 cblas_sgemm( UNDEFINED, transa, transb, *m, *n, *k, *alpha, a, *lda,
75 b, *ldb, *beta, c, *ldc );
76}
void cblas_sgemm(CBLAS_LAYOUT layout, CBLAS_TRANSPOSE TransA, CBLAS_TRANSPOSE TransB, const CBLAS_INT M, const CBLAS_INT N, const CBLAS_INT K, const float alpha, const float *A, const CBLAS_INT lda, const float *B, const CBLAS_INT ldb, const float beta, float *C, const CBLAS_INT ldc)
Definition cblas_sgemm.c:12
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
#define UNDEFINED
Definition cblas_test.h:28
#define TEST_ROW_MJR
Definition cblas_test.h:21
#define TEST_COL_MJR
Definition cblas_test.h:25
void get_transpose_type(char *type, CBLAS_TRANSPOSE *trans)
Definition auxiliary.c:8
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