187 lines
8.1 KiB
C
187 lines
8.1 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 zgedmd
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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_zgedmd_work( int matrix_layout, char jobs, char jobz,
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char jobr, char jobf, lapack_int whtsvd,
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lapack_int m, lapack_int n,
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lapack_complex_double* x,
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lapack_int ldx, lapack_complex_double* y,
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lapack_int ldy, lapack_int nrnk, double *tol, lapack_int k,
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lapack_complex_double* eigs, lapack_complex_double* z,
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lapack_int ldz, double* res,
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lapack_complex_double* b, lapack_int ldb,
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lapack_complex_double* w, lapack_int ldw,
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lapack_complex_double* s, lapack_int lds,
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lapack_complex_double* zwork, lapack_int lzwork,
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double* work, lapack_int lwork,
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lapack_int* iwork, lapack_int liwork )
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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_zgedmd( &jobs, &jobz, &jobr, &jobf, &whtsvd, &m, &n, x, &ldx,
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y, &ldy, &nrnk, tol, &k, eigs, z, &ldz, res, b, &ldb, w,
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&ldw, s, &lds, zwork, &lzwork, work, &lwork, iwork,
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&liwork, &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 ldx_t = MAX(1,m);
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lapack_int ldy_t = MAX(1,m);
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lapack_int ldz_t = MAX(1,m);
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lapack_int ldb_t = MAX(1,m);
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lapack_int ldw_t = MAX(1,m);
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lapack_int lds_t = MAX(1,m);
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lapack_complex_double* x_t = NULL;
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lapack_complex_double* y_t = NULL;
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lapack_complex_double* z_t = NULL;
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lapack_complex_double* b_t = NULL;
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lapack_complex_double* w_t = NULL;
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lapack_complex_double* s_t = NULL;
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/* Check leading dimension(s) */
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if( ldx < n ) {
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info = -9;
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LAPACKE_xerbla( "LAPACKE_zgedmd_work", info );
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return info;
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}
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if( ldy < n ) {
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info = -11;
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LAPACKE_xerbla( "LAPACKE_zgedmd_work", info );
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return info;
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}
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if( ldz < n ) {
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info = -16;
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LAPACKE_xerbla( "LAPACKE_zgedmd_work", info );
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return info;
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}
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if( ldb < n ) {
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info = -19;
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LAPACKE_xerbla( "LAPACKE_zgedmd_work", info );
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return info;
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}
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if( ldw < n ) {
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info = -21;
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LAPACKE_xerbla( "LAPACKE_zgedmd_work", info );
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return info;
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}
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if( lds < n ) {
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info = -23;
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LAPACKE_xerbla( "LAPACKE_zgedmd_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_zgedmd( &jobs, &jobz, &jobr, &jobf, &whtsvd, &m, &n, x,
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&ldx, y, &ldy, &nrnk, tol, &k, eigs, z, &ldz, res, b,
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&ldb, w, &ldw, s, &lds, zwork, &lzwork, work,
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&lwork, iwork, &liwork, &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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x_t = (lapack_complex_double*)LAPACKE_malloc( sizeof(lapack_complex_double) * ldx_t * MAX(1,n) );
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if( x_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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y_t = (lapack_complex_double*)LAPACKE_malloc( sizeof(lapack_complex_double) * ldy_t * MAX(1,n) );
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if( y_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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z_t = (lapack_complex_double*)LAPACKE_malloc( sizeof(lapack_complex_double) * 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_2;
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}
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b_t = (lapack_complex_double*)LAPACKE_malloc( sizeof(lapack_complex_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_3;
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}
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w_t = (lapack_complex_double*)LAPACKE_malloc( sizeof(lapack_complex_double) * ldw_t * MAX(1,n) );
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if( w_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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s_t = (lapack_complex_double*)LAPACKE_malloc( sizeof(lapack_complex_double) * lds_t * MAX(1,n) );
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if( s_t == NULL ) {
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info = LAPACK_TRANSPOSE_MEMORY_ERROR;
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goto exit_level_5;
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}
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/* Transpose input matrices */
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LAPACKE_zge_trans( matrix_layout, m, n, x, ldx, x_t, ldx_t );
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LAPACKE_zge_trans( matrix_layout, m, n, y, ldy, y_t, ldy_t );
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LAPACKE_zge_trans( matrix_layout, m, n, z, ldz, z_t, ldz_t );
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LAPACKE_zge_trans( matrix_layout, m, n, b, ldb, b_t, ldb_t );
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LAPACKE_zge_trans( matrix_layout, m, n, w, ldw, w_t, ldw_t );
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LAPACKE_zge_trans( matrix_layout, m, n, s, lds, s_t, lds_t );
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/* Call LAPACK function and adjust info */
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LAPACK_zgedmd( &jobs, &jobz, &jobr, &jobf, &whtsvd, &m, &n, x_t,
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&ldx_t, y_t, &ldy_t, &nrnk, tol, &k, eigs, z_t, &ldz_t,
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res, b_t, &ldb_t, w_t, &ldw_t, s_t, &lds_t, zwork,
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&lzwork, work, &lwork, iwork, &liwork, &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_zge_trans( LAPACK_COL_MAJOR, m, n, x_t, ldx_t, x, ldx );
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LAPACKE_zge_trans( LAPACK_COL_MAJOR, m, n, y_t, ldy_t, y, ldy );
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LAPACKE_zge_trans( LAPACK_COL_MAJOR, m, n, z_t, ldz_t, z, ldz );
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LAPACKE_zge_trans( LAPACK_COL_MAJOR, m, n, b_t, ldb_t, b, ldb );
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LAPACKE_zge_trans( LAPACK_COL_MAJOR, m, n, w_t, ldw_t, w, ldw );
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LAPACKE_zge_trans( LAPACK_COL_MAJOR, m, n, s_t, lds_t, s, lds );
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/* Release memory and exit */
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LAPACKE_free( s_t );
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exit_level_5:
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LAPACKE_free( w_t );
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exit_level_4:
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LAPACKE_free( b_t );
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exit_level_3:
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LAPACKE_free( z_t );
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exit_level_2:
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LAPACKE_free( y_t );
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exit_level_1:
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LAPACKE_free( x_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_zgedmd_work", info );
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}
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} else {
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info = -1;
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LAPACKE_xerbla( "LAPACKE_zgedmd_work", info );
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}
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return info;
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}
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