LAPACK 3.12.0
LAPACK: Linear Algebra PACKage
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◆ F77_ssyr2k()

void F77_ssyr2k ( CBLAS_INT layout,
char *  uplow,
char *  transp,
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 175 of file c_sblas3.c.

177 {
178 CBLAS_INT i,j,LDA,LDB,LDC;
179 float *A, *B, *C;
180 CBLAS_UPLO uplo;
181 CBLAS_TRANSPOSE trans;
182
183 get_uplo_type(uplow,&uplo);
184 get_transpose_type(transp,&trans);
185
186 if (*layout == TEST_ROW_MJR) {
187 if (trans == CblasNoTrans) {
188 LDA = *k+1;
189 LDB = *k+1;
190 A = ( float* )malloc( (*n)*LDA*sizeof( float ) );
191 B = ( float* )malloc( (*n)*LDB*sizeof( float ) );
192 for( i=0; i<*n; i++ )
193 for( j=0; j<*k; j++ ) {
194 A[i*LDA+j]=a[j*(*lda)+i];
195 B[i*LDB+j]=b[j*(*ldb)+i];
196 }
197 }
198 else {
199 LDA = *n+1;
200 LDB = *n+1;
201 A = ( float* )malloc( LDA*(*k)*sizeof( float ) );
202 B = ( float* )malloc( LDB*(*k)*sizeof( float ) );
203 for( i=0; i<*k; i++ )
204 for( j=0; j<*n; j++ ){
205 A[i*LDA+j]=a[j*(*lda)+i];
206 B[i*LDB+j]=b[j*(*ldb)+i];
207 }
208 }
209 LDC = *n+1;
210 C = ( float* )malloc( (*n)*LDC*sizeof( float ) );
211 for( i=0; i<*n; i++ )
212 for( j=0; j<*n; j++ )
213 C[i*LDC+j]=c[j*(*ldc)+i];
214 cblas_ssyr2k(CblasRowMajor, uplo, trans, *n, *k, *alpha, A, LDA,
215 B, LDB, *beta, C, LDC );
216 for( j=0; j<*n; j++ )
217 for( i=0; i<*n; i++ )
218 c[j*(*ldc)+i]=C[i*LDC+j];
219 free(A);
220 free(B);
221 free(C);
222 }
223 else if (*layout == TEST_COL_MJR)
224 cblas_ssyr2k(CblasColMajor, uplo, trans, *n, *k, *alpha, a, *lda,
225 b, *ldb, *beta, c, *ldc );
226 else
227 cblas_ssyr2k(UNDEFINED, uplo, trans, *n, *k, *alpha, a, *lda,
228 b, *ldb, *beta, c, *ldc );
229}
CBLAS_UPLO
Definition cblas.h:41
CBLAS_TRANSPOSE
Definition cblas.h:40
@ CblasNoTrans
Definition cblas.h:40
@ CblasColMajor
Definition cblas.h:39
@ CblasRowMajor
Definition cblas.h:39
void cblas_ssyr2k(CBLAS_LAYOUT layout, CBLAS_UPLO Uplo, CBLAS_TRANSPOSE Trans, 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)
#define CBLAS_INT
Definition cblas.h:24
#define UNDEFINED
Definition cblas_test.h:19
#define TEST_ROW_MJR
Definition cblas_test.h:12
#define TEST_COL_MJR
Definition cblas_test.h:16
void get_uplo_type(char *type, CBLAS_UPLO *uplo)
Definition auxiliary.c:18
void get_transpose_type(char *type, CBLAS_TRANSPOSE *trans)
Definition auxiliary.c:8
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