142 lines
6.0 KiB
C
142 lines
6.0 KiB
C
/*****************************************************************************
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Copyright (c) 2014, 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 sgejsv
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* Author: Intel Corporation
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* Generated June 2016
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*****************************************************************************/
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#include "lapacke_utils.h"
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lapack_int LAPACKE_sgejsv_work( int matrix_layout, char joba, char jobu,
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char jobv, char jobr, char jobt, char jobp,
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lapack_int m, lapack_int n, float* a,
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lapack_int lda, float* sva, float* u,
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lapack_int ldu, float* v, lapack_int ldv,
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float* work, lapack_int lwork,
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lapack_int* iwork )
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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_sgejsv( &joba, &jobu, &jobv, &jobr, &jobt, &jobp, &m, &n, a,
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&lda, sva, u, &ldu, v, &ldv, work, &lwork, 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_layout == LAPACK_ROW_MAJOR ) {
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lapack_int nu = LAPACKE_lsame( jobu, 'n' ) ? 1 : m;
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lapack_int nv = LAPACKE_lsame( jobv, 'n' ) ? 1 : n;
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lapack_int ncols_u = LAPACKE_lsame( jobu, 'n' ) ? 1 :
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LAPACKE_lsame( jobu, 'f' ) ? m : n;
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lapack_int lda_t = MAX(1,m);
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lapack_int ldu_t = MAX(1,nu);
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lapack_int ldv_t = MAX(1,nv);
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float* a_t = NULL;
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float* u_t = NULL;
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float* v_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_sgejsv_work", info );
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return info;
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}
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if( ldu < ncols_u ) {
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info = -14;
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LAPACKE_xerbla( "LAPACKE_sgejsv_work", info );
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return info;
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}
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if( ldv < n ) {
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info = -16;
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LAPACKE_xerbla( "LAPACKE_sgejsv_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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if( LAPACKE_lsame( jobu, 'f' ) || LAPACKE_lsame( jobu, 'u' ) ||
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LAPACKE_lsame( jobu, 'w' ) ) {
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u_t = (float*)LAPACKE_malloc( sizeof(float) * ldu_t * MAX(1,ncols_u) );
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if( u_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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}
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if( LAPACKE_lsame( jobv, 'j' ) || LAPACKE_lsame( jobv, 'v' ) ||
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LAPACKE_lsame( jobv, 'w' ) ) {
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v_t = (float*)LAPACKE_malloc( sizeof(float) * ldv_t * MAX(1,n) );
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if( v_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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/* Transpose input matrices */
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LAPACKE_sge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
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/* Call LAPACK function and adjust info */
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LAPACK_sgejsv( &joba, &jobu, &jobv, &jobr, &jobt, &jobp, &m, &n, a_t,
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&lda_t, sva, u_t, &ldu_t, v_t, &ldv_t, work, &lwork,
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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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if( LAPACKE_lsame( jobu, 'f' ) || LAPACKE_lsame( jobu, 'u' ) ||
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LAPACKE_lsame( jobu, 'w' ) ) {
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LAPACKE_sge_trans( LAPACK_COL_MAJOR, nu, ncols_u, u_t, ldu_t, u, ldu );
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}
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if( LAPACKE_lsame( jobv, 'j' ) || LAPACKE_lsame( jobv, 'v' ) ||
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LAPACKE_lsame( jobv, 'w' ) ) {
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LAPACKE_sge_trans( LAPACK_COL_MAJOR, nv, n, v_t, ldv_t, v, ldv );
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}
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/* Release memory and exit */
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if( LAPACKE_lsame( jobv, 'j' ) || LAPACKE_lsame( jobv, 'v' ) ||
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LAPACKE_lsame( jobv, 'w' ) ) {
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LAPACKE_free( v_t );
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}
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exit_level_2:
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if( LAPACKE_lsame( jobu, 'f' ) || LAPACKE_lsame( jobu, 'u' ) ||
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LAPACKE_lsame( jobu, 'w' ) ) {
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LAPACKE_free( u_t );
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}
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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_sgejsv_work", info );
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}
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} else {
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info = -1;
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LAPACKE_xerbla( "LAPACKE_sgejsv_work", info );
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}
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return info;
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}
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