147 lines
6.4 KiB
C
147 lines
6.4 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 chsein
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* Author: Intel Corporation
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*****************************************************************************/
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#include "lapacke_utils.h"
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lapack_int LAPACKE_chsein_work( int matrix_layout, char job, char eigsrc,
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char initv, const lapack_logical* select,
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lapack_int n, const lapack_complex_float* h,
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lapack_int ldh, lapack_complex_float* w,
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lapack_complex_float* vl, lapack_int ldvl,
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lapack_complex_float* vr, lapack_int ldvr,
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lapack_int mm, lapack_int* m,
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lapack_complex_float* work, float* rwork,
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lapack_int* ifaill, lapack_int* ifailr )
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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_chsein( &job, &eigsrc, &initv, select, &n, h, &ldh, w, vl, &ldvl,
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vr, &ldvr, &mm, m, work, rwork, ifaill, ifailr, &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 ldh_t = MAX(1,n);
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lapack_int ldvl_t = MAX(1,n);
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lapack_int ldvr_t = MAX(1,n);
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lapack_complex_float* h_t = NULL;
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lapack_complex_float* vl_t = NULL;
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lapack_complex_float* vr_t = NULL;
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/* Check leading dimension(s) */
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if( ldh < n ) {
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info = -8;
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LAPACKE_xerbla( "LAPACKE_chsein_work", info );
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return info;
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}
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if( ldvl < mm ) {
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info = -11;
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LAPACKE_xerbla( "LAPACKE_chsein_work", info );
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return info;
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}
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if( ldvr < mm ) {
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info = -13;
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LAPACKE_xerbla( "LAPACKE_chsein_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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h_t = (lapack_complex_float*)
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LAPACKE_malloc( sizeof(lapack_complex_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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if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
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vl_t = (lapack_complex_float*)
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LAPACKE_malloc( sizeof(lapack_complex_float) *
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ldvl_t * MAX(1,mm) );
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if( vl_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( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
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vr_t = (lapack_complex_float*)
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LAPACKE_malloc( sizeof(lapack_complex_float) *
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ldvr_t * MAX(1,mm) );
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if( vr_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_cge_trans( matrix_layout, n, n, h, ldh, h_t, ldh_t );
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if( ( LAPACKE_lsame( job, 'l' ) || LAPACKE_lsame( job, 'b' ) ) &&
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LAPACKE_lsame( initv, 'v' ) ) {
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LAPACKE_cge_trans( matrix_layout, n, mm, vl, ldvl, vl_t, ldvl_t );
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}
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if( ( LAPACKE_lsame( job, 'r' ) || LAPACKE_lsame( job, 'b' ) ) &&
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LAPACKE_lsame( initv, 'v' ) ) {
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LAPACKE_cge_trans( matrix_layout, n, mm, vr, ldvr, vr_t, ldvr_t );
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}
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/* Call LAPACK function and adjust info */
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LAPACK_chsein( &job, &eigsrc, &initv, select, &n, h_t, &ldh_t, w, vl_t,
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&ldvl_t, vr_t, &ldvr_t, &mm, m, work, rwork, ifaill,
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ifailr, &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( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
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LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, mm, vl_t, ldvl_t, vl,
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ldvl );
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}
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if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
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LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, mm, vr_t, ldvr_t, vr,
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ldvr );
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}
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/* Release memory and exit */
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if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
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LAPACKE_free( vr_t );
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}
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exit_level_2:
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if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
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LAPACKE_free( vl_t );
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}
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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_chsein_work", info );
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}
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} else {
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info = -1;
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LAPACKE_xerbla( "LAPACKE_chsein_work", info );
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}
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return info;
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}
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