lapacke_stgsja_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 stgsja
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_stgsja_work( int matrix_order, char jobu, char jobv,
00038                                 char jobq, lapack_int m, lapack_int p,
00039                                 lapack_int n, lapack_int k, lapack_int l,
00040                                 float* a, lapack_int lda, float* b,
00041                                 lapack_int ldb, float tola, float tolb,
00042                                 float* alpha, float* beta, float* u,
00043                                 lapack_int ldu, float* v, lapack_int ldv,
00044                                 float* q, lapack_int ldq, float* work,
00045                                 lapack_int* ncycle )
00046 {
00047     lapack_int info = 0;
00048     if( matrix_order == LAPACK_COL_MAJOR ) {
00049         /* Call LAPACK function and adjust info */
00050         LAPACK_stgsja( &jobu, &jobv, &jobq, &m, &p, &n, &k, &l, a, &lda, b,
00051                        &ldb, &tola, &tolb, alpha, beta, u, &ldu, v, &ldv, q,
00052                        &ldq, work, ncycle, &info );
00053         if( info < 0 ) {
00054             info = info - 1;
00055         }
00056     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00057         lapack_int lda_t = MAX(1,m);
00058         lapack_int ldb_t = MAX(1,p);
00059         lapack_int ldq_t = MAX(1,n);
00060         lapack_int ldu_t = MAX(1,m);
00061         lapack_int ldv_t = MAX(1,p);
00062         float* a_t = NULL;
00063         float* b_t = NULL;
00064         float* u_t = NULL;
00065         float* v_t = NULL;
00066         float* q_t = NULL;
00067         /* Check leading dimension(s) */
00068         if( lda < n ) {
00069             info = -11;
00070             LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
00071             return info;
00072         }
00073         if( ldb < n ) {
00074             info = -13;
00075             LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
00076             return info;
00077         }
00078         if( ldq < n ) {
00079             info = -23;
00080             LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
00081             return info;
00082         }
00083         if( ldu < m ) {
00084             info = -19;
00085             LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
00086             return info;
00087         }
00088         if( ldv < p ) {
00089             info = -21;
00090             LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
00091             return info;
00092         }
00093         /* Allocate memory for temporary array(s) */
00094         a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
00095         if( a_t == NULL ) {
00096             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00097             goto exit_level_0;
00098         }
00099         b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,n) );
00100         if( b_t == NULL ) {
00101             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00102             goto exit_level_1;
00103         }
00104         if( LAPACKE_lsame( jobu, 'i' ) || LAPACKE_lsame( jobu, 'u' ) ) {
00105             u_t = (float*)LAPACKE_malloc( sizeof(float) * ldu_t * MAX(1,m) );
00106             if( u_t == NULL ) {
00107                 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00108                 goto exit_level_2;
00109             }
00110         }
00111         if( LAPACKE_lsame( jobv, 'i' ) || LAPACKE_lsame( jobv, 'v' ) ) {
00112             v_t = (float*)LAPACKE_malloc( sizeof(float) * ldv_t * MAX(1,p) );
00113             if( v_t == NULL ) {
00114                 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00115                 goto exit_level_3;
00116             }
00117         }
00118         if( LAPACKE_lsame( jobq, 'i' ) || LAPACKE_lsame( jobq, 'q' ) ) {
00119             q_t = (float*)LAPACKE_malloc( sizeof(float) * ldq_t * MAX(1,n) );
00120             if( q_t == NULL ) {
00121                 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00122                 goto exit_level_4;
00123             }
00124         }
00125         /* Transpose input matrices */
00126         LAPACKE_sge_trans( matrix_order, m, n, a, lda, a_t, lda_t );
00127         LAPACKE_sge_trans( matrix_order, p, n, b, ldb, b_t, ldb_t );
00128         if( LAPACKE_lsame( jobu, 'u' ) ) {
00129             LAPACKE_sge_trans( matrix_order, m, m, u, ldu, u_t, ldu_t );
00130         }
00131         if( LAPACKE_lsame( jobv, 'v' ) ) {
00132             LAPACKE_sge_trans( matrix_order, p, p, v, ldv, v_t, ldv_t );
00133         }
00134         if( LAPACKE_lsame( jobq, 'q' ) ) {
00135             LAPACKE_sge_trans( matrix_order, n, n, q, ldq, q_t, ldq_t );
00136         }
00137         /* Call LAPACK function and adjust info */
00138         LAPACK_stgsja( &jobu, &jobv, &jobq, &m, &p, &n, &k, &l, a_t, &lda_t,
00139                        b_t, &ldb_t, &tola, &tolb, alpha, beta, u_t, &ldu_t, v_t,
00140                        &ldv_t, q_t, &ldq_t, work, ncycle, &info );
00141         if( info < 0 ) {
00142             info = info - 1;
00143         }
00144         /* Transpose output matrices */
00145         LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
00146         LAPACKE_sge_trans( LAPACK_COL_MAJOR, p, n, b_t, ldb_t, b, ldb );
00147         if( LAPACKE_lsame( jobu, 'i' ) || LAPACKE_lsame( jobu, 'u' ) ) {
00148             LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, m, u_t, ldu_t, u, ldu );
00149         }
00150         if( LAPACKE_lsame( jobv, 'i' ) || LAPACKE_lsame( jobv, 'v' ) ) {
00151             LAPACKE_sge_trans( LAPACK_COL_MAJOR, p, p, v_t, ldv_t, v, ldv );
00152         }
00153         if( LAPACKE_lsame( jobq, 'i' ) || LAPACKE_lsame( jobq, 'q' ) ) {
00154             LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, q_t, ldq_t, q, ldq );
00155         }
00156         /* Release memory and exit */
00157         if( LAPACKE_lsame( jobq, 'i' ) || LAPACKE_lsame( jobq, 'q' ) ) {
00158             LAPACKE_free( q_t );
00159         }
00160 exit_level_4:
00161         if( LAPACKE_lsame( jobv, 'i' ) || LAPACKE_lsame( jobv, 'v' ) ) {
00162             LAPACKE_free( v_t );
00163         }
00164 exit_level_3:
00165         if( LAPACKE_lsame( jobu, 'i' ) || LAPACKE_lsame( jobu, 'u' ) ) {
00166             LAPACKE_free( u_t );
00167         }
00168 exit_level_2:
00169         LAPACKE_free( b_t );
00170 exit_level_1:
00171         LAPACKE_free( a_t );
00172 exit_level_0:
00173         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00174             LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
00175         }
00176     } else {
00177         info = -1;
00178         LAPACKE_xerbla( "LAPACKE_stgsja_work", info );
00179     }
00180     return info;
00181 }


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