162 lines
6.8 KiB
C
162 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 shgeqz
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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_shgeqz_work( int matrix_order, char job, char compq,
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char compz, lapack_int n, lapack_int ilo,
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lapack_int ihi, float* h, lapack_int ldh,
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float* t, lapack_int ldt, float* alphar,
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float* alphai, float* beta, float* q,
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lapack_int ldq, float* z, lapack_int ldz,
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float* work, lapack_int lwork )
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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_shgeqz( &job, &compq, &compz, &n, &ilo, &ihi, h, &ldh, t, &ldt,
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alphar, alphai, beta, q, &ldq, z, &ldz, work, &lwork,
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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 ldh_t = MAX(1,n);
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lapack_int ldq_t = MAX(1,n);
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lapack_int ldt_t = MAX(1,n);
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lapack_int ldz_t = MAX(1,n);
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float* h_t = NULL;
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float* t_t = NULL;
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float* q_t = NULL;
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float* z_t = NULL;
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/* Check leading dimension(s) */
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if( ldh < n ) {
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info = -9;
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LAPACKE_xerbla( "LAPACKE_shgeqz_work", info );
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return info;
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}
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if( ldq < n ) {
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info = -16;
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LAPACKE_xerbla( "LAPACKE_shgeqz_work", info );
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return info;
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}
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if( ldt < n ) {
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info = -11;
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LAPACKE_xerbla( "LAPACKE_shgeqz_work", info );
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return info;
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}
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if( ldz < n ) {
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info = -18;
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LAPACKE_xerbla( "LAPACKE_shgeqz_work", info );
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return info;
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}
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/* Query optimal working array(s) size if requested */
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if( lwork == -1 ) {
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LAPACK_shgeqz( &job, &compq, &compz, &n, &ilo, &ihi, h, &ldh_t, t,
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&ldt_t, alphar, alphai, beta, q, &ldq_t, z, &ldz_t,
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work, &lwork, &info );
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return (info < 0) ? (info - 1) : info;
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}
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/* Allocate memory for temporary array(s) */
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h_t = (float*)LAPACKE_malloc( sizeof(float) * ldh_t * MAX(1,n) );
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if( h_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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t_t = (float*)LAPACKE_malloc( sizeof(float) * ldt_t * MAX(1,n) );
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if( t_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( compq, 'i' ) || LAPACKE_lsame( compq, 'v' ) ) {
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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_2;
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}
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}
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if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
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z_t = (float*)LAPACKE_malloc( sizeof(float) * ldz_t * MAX(1,n) );
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if( z_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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/* Transpose input matrices */
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LAPACKE_sge_trans( matrix_order, n, n, h, ldh, h_t, ldh_t );
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LAPACKE_sge_trans( matrix_order, n, n, t, ldt, t_t, ldt_t );
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if( LAPACKE_lsame( compq, 'v' ) ) {
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LAPACKE_sge_trans( matrix_order, n, n, q, ldq, q_t, ldq_t );
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}
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if( LAPACKE_lsame( compz, 'v' ) ) {
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LAPACKE_sge_trans( matrix_order, n, n, z, ldz, z_t, ldz_t );
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}
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/* Call LAPACK function and adjust info */
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LAPACK_shgeqz( &job, &compq, &compz, &n, &ilo, &ihi, h_t, &ldh_t, t_t,
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&ldt_t, alphar, alphai, beta, q_t, &ldq_t, z_t, &ldz_t,
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work, &lwork, &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, n, n, h_t, ldh_t, h, ldh );
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LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, t_t, ldt_t, t, ldt );
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if( LAPACKE_lsame( compq, 'i' ) || LAPACKE_lsame( compq, 'v' ) ) {
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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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if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
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LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, z_t, ldz_t, z, ldz );
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}
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/* Release memory and exit */
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if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
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LAPACKE_free( z_t );
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}
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exit_level_3:
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if( LAPACKE_lsame( compq, 'i' ) || LAPACKE_lsame( compq, 'v' ) ) {
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LAPACKE_free( q_t );
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}
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exit_level_2:
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LAPACKE_free( t_t );
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exit_level_1:
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LAPACKE_free( h_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_shgeqz_work", info );
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}
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} else {
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info = -1;
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LAPACKE_xerbla( "LAPACKE_shgeqz_work", info );
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}
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return info;
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}
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