lapacke_zhpsvx_work.c
Go to the documentation of this file.
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 zhpsvx
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_zhpsvx_work( int matrix_order, char fact, char uplo,
00038                                 lapack_int n, lapack_int nrhs,
00039                                 const lapack_complex_double* ap,
00040                                 lapack_complex_double* afp, lapack_int* ipiv,
00041                                 const lapack_complex_double* b, lapack_int ldb,
00042                                 lapack_complex_double* x, lapack_int ldx,
00043                                 double* rcond, double* ferr, double* berr,
00044                                 lapack_complex_double* work, double* rwork )
00045 {
00046     lapack_int info = 0;
00047     if( matrix_order == LAPACK_COL_MAJOR ) {
00048         /* Call LAPACK function and adjust info */
00049         LAPACK_zhpsvx( &fact, &uplo, &n, &nrhs, ap, afp, ipiv, b, &ldb, x, &ldx,
00050                        rcond, ferr, berr, work, rwork, &info );
00051         if( info < 0 ) {
00052             info = info - 1;
00053         }
00054     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00055         lapack_int ldb_t = MAX(1,n);
00056         lapack_int ldx_t = MAX(1,n);
00057         lapack_complex_double* b_t = NULL;
00058         lapack_complex_double* x_t = NULL;
00059         lapack_complex_double* ap_t = NULL;
00060         lapack_complex_double* afp_t = NULL;
00061         /* Check leading dimension(s) */
00062         if( ldb < nrhs ) {
00063             info = -10;
00064             LAPACKE_xerbla( "LAPACKE_zhpsvx_work", info );
00065             return info;
00066         }
00067         if( ldx < nrhs ) {
00068             info = -12;
00069             LAPACKE_xerbla( "LAPACKE_zhpsvx_work", info );
00070             return info;
00071         }
00072         /* Allocate memory for temporary array(s) */
00073         b_t = (lapack_complex_double*)
00074             LAPACKE_malloc( sizeof(lapack_complex_double) *
00075                             ldb_t * MAX(1,nrhs) );
00076         if( b_t == NULL ) {
00077             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00078             goto exit_level_0;
00079         }
00080         x_t = (lapack_complex_double*)
00081             LAPACKE_malloc( sizeof(lapack_complex_double) *
00082                             ldx_t * MAX(1,nrhs) );
00083         if( x_t == NULL ) {
00084             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00085             goto exit_level_1;
00086         }
00087         ap_t = (lapack_complex_double*)
00088             LAPACKE_malloc( sizeof(lapack_complex_double) *
00089                             ( MAX(1,n) * MAX(2,n+1) ) / 2 );
00090         if( ap_t == NULL ) {
00091             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00092             goto exit_level_2;
00093         }
00094         afp_t = (lapack_complex_double*)
00095             LAPACKE_malloc( sizeof(lapack_complex_double) *
00096                             ( MAX(1,n) * MAX(2,n+1) ) / 2 );
00097         if( afp_t == NULL ) {
00098             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00099             goto exit_level_3;
00100         }
00101         /* Transpose input matrices */
00102         LAPACKE_zge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
00103         LAPACKE_zhp_trans( matrix_order, uplo, n, ap, ap_t );
00104         if( LAPACKE_lsame( fact, 'f' ) ) {
00105             LAPACKE_zhp_trans( matrix_order, uplo, n, afp, afp_t );
00106         }
00107         /* Call LAPACK function and adjust info */
00108         LAPACK_zhpsvx( &fact, &uplo, &n, &nrhs, ap_t, afp_t, ipiv, b_t, &ldb_t,
00109                        x_t, &ldx_t, rcond, ferr, berr, work, rwork, &info );
00110         if( info < 0 ) {
00111             info = info - 1;
00112         }
00113         /* Transpose output matrices */
00114         LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
00115         if( LAPACKE_lsame( fact, 'n' ) ) {
00116             LAPACKE_zhp_trans( LAPACK_COL_MAJOR, uplo, n, afp_t, afp );
00117         }
00118         /* Release memory and exit */
00119         LAPACKE_free( afp_t );
00120 exit_level_3:
00121         LAPACKE_free( ap_t );
00122 exit_level_2:
00123         LAPACKE_free( x_t );
00124 exit_level_1:
00125         LAPACKE_free( b_t );
00126 exit_level_0:
00127         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00128             LAPACKE_xerbla( "LAPACKE_zhpsvx_work", info );
00129         }
00130     } else {
00131         info = -1;
00132         LAPACKE_xerbla( "LAPACKE_zhpsvx_work", info );
00133     }
00134     return info;
00135 }


swiftnav
Author(s):
autogenerated on Sat Jun 8 2019 18:55:55