87 lines
3.2 KiB
C
87 lines
3.2 KiB
C
#include "lapacke_utils.h"
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lapack_int LAPACKE_dtrsyl3_work( int matrix_layout, char trana, char tranb,
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lapack_int isgn, lapack_int m, lapack_int n,
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const double* a, lapack_int lda,
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const double* b, lapack_int ldb, double* c,
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lapack_int ldc, double* scale,
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lapack_int* iwork, lapack_int liwork,
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double* swork, lapack_int ldswork )
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{
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lapack_int info = 0;
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if( matrix_layout == LAPACK_COL_MAJOR ) {
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/* Call LAPACK function and adjust info */
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LAPACK_dtrsyl3( &trana, &tranb, &isgn, &m, &n, a, &lda, b, &ldb, c, &ldc,
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scale, iwork, &liwork, swork, &ldswork, &info );
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if( info < 0 ) {
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info = info - 1;
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}
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} else if( matrix_layout == LAPACK_ROW_MAJOR ) {
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lapack_int lda_t = MAX(1,m);
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lapack_int ldb_t = MAX(1,n);
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lapack_int ldc_t = MAX(1,m);
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double* a_t = NULL;
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double* b_t = NULL;
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double* c_t = NULL;
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/* Check leading dimension(s) */
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if( lda < m ) {
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info = -8;
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LAPACKE_xerbla( "LAPACKE_dtrsyl3_work", info );
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return info;
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}
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if( ldb < n ) {
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info = -10;
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LAPACKE_xerbla( "LAPACKE_dtrsyl3_work", info );
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return info;
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}
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if( ldc < n ) {
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info = -12;
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LAPACKE_xerbla( "LAPACKE_dtrsyl3_work", info );
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return info;
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}
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/* Allocate memory for temporary array(s) */
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a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,m) );
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if( a_t == NULL ) {
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info = LAPACK_TRANSPOSE_MEMORY_ERROR;
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goto exit_level_0;
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}
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b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,n) );
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if( b_t == NULL ) {
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info = LAPACK_TRANSPOSE_MEMORY_ERROR;
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goto exit_level_1;
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}
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c_t = (double*)LAPACKE_malloc( sizeof(double) * ldc_t * MAX(1,n) );
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if( c_t == NULL ) {
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info = LAPACK_TRANSPOSE_MEMORY_ERROR;
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goto exit_level_2;
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}
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/* Transpose input matrices */
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LAPACKE_dge_trans( matrix_layout, m, m, a, lda, a_t, lda_t );
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LAPACKE_dge_trans( matrix_layout, n, n, b, ldb, b_t, ldb_t );
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LAPACKE_dge_trans( matrix_layout, m, n, c, ldc, c_t, ldc_t );
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/* Call LAPACK function and adjust info */
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LAPACK_dtrsyl3( &trana, &tranb, &isgn, &m, &n, a_t, &lda_t, b_t, &ldb_t,
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c_t, &ldc_t, scale, iwork, &liwork, swork, &ldswork,
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&info );
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if( info < 0 ) {
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info = info - 1;
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}
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/* Transpose output matrices */
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LAPACKE_dge_trans( LAPACK_COL_MAJOR, m, n, c_t, ldc_t, c, ldc );
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/* Release memory and exit */
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LAPACKE_free( c_t );
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exit_level_2:
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LAPACKE_free( b_t );
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exit_level_1:
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LAPACKE_free( a_t );
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exit_level_0:
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if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
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LAPACKE_xerbla( "LAPACKE_dtrsyl3_work", info );
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}
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} else {
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info = -1;
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LAPACKE_xerbla( "LAPACKE_dtrsyl3_work", info );
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}
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return info;
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}
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