lapacke_sgesv_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 sgesv
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_sgesv_work( int matrix_order, lapack_int n, lapack_int nrhs,
00038                                float* a, lapack_int lda, lapack_int* ipiv,
00039                                float* b, lapack_int ldb )
00040 {
00041     lapack_int info = 0;
00042     if( matrix_order == LAPACK_COL_MAJOR ) {
00043         /* Call LAPACK function and adjust info */
00044         LAPACK_sgesv( &n, &nrhs, a, &lda, ipiv, b, &ldb, &info );
00045         if( info < 0 ) {
00046             info = info - 1;
00047         }
00048     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00049         lapack_int lda_t = MAX(1,n);
00050         lapack_int ldb_t = MAX(1,n);
00051         float* a_t = NULL;
00052         float* b_t = NULL;
00053         /* Check leading dimension(s) */
00054         if( lda < n ) {
00055             info = -5;
00056             LAPACKE_xerbla( "LAPACKE_sgesv_work", info );
00057             return info;
00058         }
00059         if( ldb < nrhs ) {
00060             info = -8;
00061             LAPACKE_xerbla( "LAPACKE_sgesv_work", info );
00062             return info;
00063         }
00064         /* Allocate memory for temporary array(s) */
00065         a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
00066         if( a_t == NULL ) {
00067             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00068             goto exit_level_0;
00069         }
00070         b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,nrhs) );
00071         if( b_t == NULL ) {
00072             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00073             goto exit_level_1;
00074         }
00075         /* Transpose input matrices */
00076         LAPACKE_sge_trans( matrix_order, n, n, a, lda, a_t, lda_t );
00077         LAPACKE_sge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
00078         /* Call LAPACK function and adjust info */
00079         LAPACK_sgesv( &n, &nrhs, a_t, &lda_t, ipiv, b_t, &ldb_t, &info );
00080         if( info < 0 ) {
00081             info = info - 1;
00082         }
00083         /* Transpose output matrices */
00084         LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
00085         LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
00086         /* Release memory and exit */
00087         LAPACKE_free( b_t );
00088 exit_level_1:
00089         LAPACKE_free( a_t );
00090 exit_level_0:
00091         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00092             LAPACKE_xerbla( "LAPACKE_sgesv_work", info );
00093         }
00094     } else {
00095         info = -1;
00096         LAPACKE_xerbla( "LAPACKE_sgesv_work", info );
00097     }
00098     return info;
00099 }


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autogenerated on Sat Jun 8 2019 18:55:53