171 lines
6.8 KiB
C
171 lines
6.8 KiB
C
/*****************************************************************************
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Copyright (c) 2011, Intel Corp.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of Intel Corporation nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************
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* Contents: Native middle-level C interface to LAPACK function sggsvd
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* Author: Intel Corporation
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* Generated November, 2011
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*****************************************************************************/
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#include "lapacke_utils.h"
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lapack_int LAPACKE_sggsvd_work( int matrix_order, char jobu, char jobv,
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char jobq, lapack_int m, lapack_int n,
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lapack_int p, lapack_int* k, lapack_int* l,
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float* a, lapack_int lda, float* b,
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lapack_int ldb, float* alpha, float* beta,
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float* u, lapack_int ldu, float* v,
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lapack_int ldv, float* q, lapack_int ldq,
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float* work, lapack_int* iwork )
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{
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lapack_int info = 0;
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if( matrix_order == LAPACK_COL_MAJOR ) {
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/* Call LAPACK function and adjust info */
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LAPACK_sggsvd( &jobu, &jobv, &jobq, &m, &n, &p, k, l, a, &lda, b, &ldb,
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alpha, beta, u, &ldu, v, &ldv, q, &ldq, work, iwork,
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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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} else if( matrix_order == LAPACK_ROW_MAJOR ) {
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lapack_int lda_t = MAX(1,m);
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lapack_int ldb_t = MAX(1,p);
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lapack_int ldq_t = MAX(1,n);
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lapack_int ldu_t = MAX(1,m);
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lapack_int ldv_t = MAX(1,p);
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float* a_t = NULL;
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float* b_t = NULL;
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float* u_t = NULL;
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float* v_t = NULL;
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float* q_t = NULL;
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/* Check leading dimension(s) */
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if( lda < n ) {
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info = -11;
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LAPACKE_xerbla( "LAPACKE_sggsvd_work", info );
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return info;
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}
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if( ldb < n ) {
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info = -13;
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LAPACKE_xerbla( "LAPACKE_sggsvd_work", info );
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return info;
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}
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if( ldq < n ) {
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info = -21;
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LAPACKE_xerbla( "LAPACKE_sggsvd_work", info );
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return info;
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}
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if( ldu < m ) {
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info = -17;
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LAPACKE_xerbla( "LAPACKE_sggsvd_work", info );
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return info;
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}
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if( ldv < p ) {
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info = -19;
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LAPACKE_xerbla( "LAPACKE_sggsvd_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 = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
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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 = (float*)LAPACKE_malloc( sizeof(float) * 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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if( LAPACKE_lsame( jobu, 'u' ) ) {
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u_t = (float*)LAPACKE_malloc( sizeof(float) * ldu_t * MAX(1,m) );
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if( u_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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}
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if( LAPACKE_lsame( jobv, 'v' ) ) {
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v_t = (float*)LAPACKE_malloc( sizeof(float) * ldv_t * MAX(1,p) );
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if( v_t == NULL ) {
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info = LAPACK_TRANSPOSE_MEMORY_ERROR;
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goto exit_level_3;
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}
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}
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if( LAPACKE_lsame( jobq, 'q' ) ) {
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q_t = (float*)LAPACKE_malloc( sizeof(float) * ldq_t * MAX(1,n) );
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if( q_t == NULL ) {
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info = LAPACK_TRANSPOSE_MEMORY_ERROR;
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goto exit_level_4;
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}
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}
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/* Transpose input matrices */
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LAPACKE_sge_trans( matrix_order, m, n, a, lda, a_t, lda_t );
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LAPACKE_sge_trans( matrix_order, p, n, b, ldb, b_t, ldb_t );
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/* Call LAPACK function and adjust info */
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LAPACK_sggsvd( &jobu, &jobv, &jobq, &m, &n, &p, k, l, a_t, &lda_t, b_t,
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&ldb_t, alpha, beta, u_t, &ldu_t, v_t, &ldv_t, q_t,
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&ldq_t, work, iwork, &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_sge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
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LAPACKE_sge_trans( LAPACK_COL_MAJOR, p, n, b_t, ldb_t, b, ldb );
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if( LAPACKE_lsame( jobu, 'u' ) ) {
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LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, m, u_t, ldu_t, u, ldu );
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}
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if( LAPACKE_lsame( jobv, 'v' ) ) {
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LAPACKE_sge_trans( LAPACK_COL_MAJOR, p, p, v_t, ldv_t, v, ldv );
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}
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if( LAPACKE_lsame( jobq, 'q' ) ) {
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LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, q_t, ldq_t, q, ldq );
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}
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/* Release memory and exit */
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if( LAPACKE_lsame( jobq, 'q' ) ) {
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LAPACKE_free( q_t );
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}
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exit_level_4:
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if( LAPACKE_lsame( jobv, 'v' ) ) {
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LAPACKE_free( v_t );
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}
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exit_level_3:
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if( LAPACKE_lsame( jobu, 'u' ) ) {
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LAPACKE_free( u_t );
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}
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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_sggsvd_work", info );
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}
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} else {
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info = -1;
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LAPACKE_xerbla( "LAPACKE_sggsvd_work", info );
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}
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return info;
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}
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