lapacke_cggsvp_work.c
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00001 /*****************************************************************************
00002   Copyright (c) 2010, Intel Corp.
00003   All rights reserved.
00004 
00005   Redistribution and use in source and binary forms, with or without
00006   modification, are permitted provided that the following conditions are met:
00007 
00008     * Redistributions of source code must retain the above copyright notice,
00009       this list of conditions and the following disclaimer.
00010     * Redistributions in binary form must reproduce the above copyright
00011       notice, this list of conditions and the following disclaimer in the
00012       documentation and/or other materials provided with the distribution.
00013     * Neither the name of Intel Corporation nor the names of its contributors
00014       may be used to endorse or promote products derived from this software
00015       without specific prior written permission.
00016 
00017   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00018   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
00021   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00022   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00023   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00024   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00025   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00026   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
00027   THE POSSIBILITY OF SUCH DAMAGE.
00028 ******************************************************************************
00029 * Contents: Native middle-level C interface to LAPACK function cggsvp
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_cggsvp_work( int matrix_order, char jobu, char jobv,
00038                                 char jobq, lapack_int m, lapack_int p,
00039                                 lapack_int n, lapack_complex_float* a,
00040                                 lapack_int lda, lapack_complex_float* b,
00041                                 lapack_int ldb, float tola, float tolb,
00042                                 lapack_int* k, lapack_int* l,
00043                                 lapack_complex_float* u, lapack_int ldu,
00044                                 lapack_complex_float* v, lapack_int ldv,
00045                                 lapack_complex_float* q, lapack_int ldq,
00046                                 lapack_int* iwork, float* rwork,
00047                                 lapack_complex_float* tau,
00048                                 lapack_complex_float* work )
00049 {
00050     lapack_int info = 0;
00051     if( matrix_order == LAPACK_COL_MAJOR ) {
00052         /* Call LAPACK function and adjust info */
00053         LAPACK_cggsvp( &jobu, &jobv, &jobq, &m, &p, &n, a, &lda, b, &ldb, &tola,
00054                        &tolb, k, l, u, &ldu, v, &ldv, q, &ldq, iwork, rwork,
00055                        tau, work, &info );
00056         if( info < 0 ) {
00057             info = info - 1;
00058         }
00059     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00060         lapack_int lda_t = MAX(1,m);
00061         lapack_int ldb_t = MAX(1,p);
00062         lapack_int ldq_t = MAX(1,n);
00063         lapack_int ldu_t = MAX(1,m);
00064         lapack_int ldv_t = MAX(1,p);
00065         lapack_complex_float* a_t = NULL;
00066         lapack_complex_float* b_t = NULL;
00067         lapack_complex_float* u_t = NULL;
00068         lapack_complex_float* v_t = NULL;
00069         lapack_complex_float* q_t = NULL;
00070         /* Check leading dimension(s) */
00071         if( lda < n ) {
00072             info = -9;
00073             LAPACKE_xerbla( "LAPACKE_cggsvp_work", info );
00074             return info;
00075         }
00076         if( ldb < n ) {
00077             info = -11;
00078             LAPACKE_xerbla( "LAPACKE_cggsvp_work", info );
00079             return info;
00080         }
00081         if( ldq < n ) {
00082             info = -21;
00083             LAPACKE_xerbla( "LAPACKE_cggsvp_work", info );
00084             return info;
00085         }
00086         if( ldu < m ) {
00087             info = -17;
00088             LAPACKE_xerbla( "LAPACKE_cggsvp_work", info );
00089             return info;
00090         }
00091         if( ldv < m ) {
00092             info = -19;
00093             LAPACKE_xerbla( "LAPACKE_cggsvp_work", info );
00094             return info;
00095         }
00096         /* Allocate memory for temporary array(s) */
00097         a_t = (lapack_complex_float*)
00098             LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
00099         if( a_t == NULL ) {
00100             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00101             goto exit_level_0;
00102         }
00103         b_t = (lapack_complex_float*)
00104             LAPACKE_malloc( sizeof(lapack_complex_float) * ldb_t * MAX(1,n) );
00105         if( b_t == NULL ) {
00106             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00107             goto exit_level_1;
00108         }
00109         if( LAPACKE_lsame( jobu, 'u' ) ) {
00110             u_t = (lapack_complex_float*)
00111                 LAPACKE_malloc( sizeof(lapack_complex_float) *
00112                                 ldu_t * MAX(1,m) );
00113             if( u_t == NULL ) {
00114                 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00115                 goto exit_level_2;
00116             }
00117         }
00118         if( LAPACKE_lsame( jobv, 'v' ) ) {
00119             v_t = (lapack_complex_float*)
00120                 LAPACKE_malloc( sizeof(lapack_complex_float) *
00121                                 ldv_t * MAX(1,m) );
00122             if( v_t == NULL ) {
00123                 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00124                 goto exit_level_3;
00125             }
00126         }
00127         if( LAPACKE_lsame( jobq, 'q' ) ) {
00128             q_t = (lapack_complex_float*)
00129                 LAPACKE_malloc( sizeof(lapack_complex_float) *
00130                                 ldq_t * MAX(1,n) );
00131             if( q_t == NULL ) {
00132                 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00133                 goto exit_level_4;
00134             }
00135         }
00136         /* Transpose input matrices */
00137         LAPACKE_cge_trans( matrix_order, m, n, a, lda, a_t, lda_t );
00138         LAPACKE_cge_trans( matrix_order, p, n, b, ldb, b_t, ldb_t );
00139         /* Call LAPACK function and adjust info */
00140         LAPACK_cggsvp( &jobu, &jobv, &jobq, &m, &p, &n, a_t, &lda_t, b_t,
00141                        &ldb_t, &tola, &tolb, k, l, u_t, &ldu_t, v_t, &ldv_t,
00142                        q_t, &ldq_t, iwork, rwork, tau, work, &info );
00143         if( info < 0 ) {
00144             info = info - 1;
00145         }
00146         /* Transpose output matrices */
00147         LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
00148         LAPACKE_cge_trans( LAPACK_COL_MAJOR, p, n, b_t, ldb_t, b, ldb );
00149         if( LAPACKE_lsame( jobu, 'u' ) ) {
00150             LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, m, u_t, ldu_t, u, ldu );
00151         }
00152         if( LAPACKE_lsame( jobv, 'v' ) ) {
00153             LAPACKE_cge_trans( LAPACK_COL_MAJOR, p, m, v_t, ldv_t, v, ldv );
00154         }
00155         if( LAPACKE_lsame( jobq, 'q' ) ) {
00156             LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, q_t, ldq_t, q, ldq );
00157         }
00158         /* Release memory and exit */
00159         if( LAPACKE_lsame( jobq, 'q' ) ) {
00160             LAPACKE_free( q_t );
00161         }
00162 exit_level_4:
00163         if( LAPACKE_lsame( jobv, 'v' ) ) {
00164             LAPACKE_free( v_t );
00165         }
00166 exit_level_3:
00167         if( LAPACKE_lsame( jobu, 'u' ) ) {
00168             LAPACKE_free( u_t );
00169         }
00170 exit_level_2:
00171         LAPACKE_free( b_t );
00172 exit_level_1:
00173         LAPACKE_free( a_t );
00174 exit_level_0:
00175         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00176             LAPACKE_xerbla( "LAPACKE_cggsvp_work", info );
00177         }
00178     } else {
00179         info = -1;
00180         LAPACKE_xerbla( "LAPACKE_cggsvp_work", info );
00181     }
00182     return info;
00183 }


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