lapacke_zherfsx_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
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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
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00026   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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00028 ******************************************************************************
00029 * Contents: Native middle-level C interface to LAPACK function zherfsx
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_zherfsx_work( int matrix_order, char uplo, char equed,
00038                                  lapack_int n, lapack_int nrhs,
00039                                  const lapack_complex_double* a, lapack_int lda,
00040                                  const lapack_complex_double* af,
00041                                  lapack_int ldaf, const lapack_int* ipiv,
00042                                  const double* s,
00043                                  const lapack_complex_double* b, lapack_int ldb,
00044                                  lapack_complex_double* x, lapack_int ldx,
00045                                  double* rcond, double* berr,
00046                                  lapack_int n_err_bnds, double* err_bnds_norm,
00047                                  double* err_bnds_comp, lapack_int nparams,
00048                                  double* params, lapack_complex_double* work,
00049                                  double* rwork )
00050 {
00051     lapack_int info = 0;
00052     if( matrix_order == LAPACK_COL_MAJOR ) {
00053         /* Call LAPACK function and adjust info */
00054         LAPACK_zherfsx( &uplo, &equed, &n, &nrhs, a, &lda, af, &ldaf, ipiv, s,
00055                         b, &ldb, x, &ldx, rcond, berr, &n_err_bnds,
00056                         err_bnds_norm, err_bnds_comp, &nparams, params, work,
00057                         rwork, &info );
00058         if( info < 0 ) {
00059             info = info - 1;
00060         }
00061     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00062         lapack_int lda_t = MAX(1,n);
00063         lapack_int ldaf_t = MAX(1,n);
00064         lapack_int ldb_t = MAX(1,n);
00065         lapack_int ldx_t = MAX(1,n);
00066         lapack_complex_double* a_t = NULL;
00067         lapack_complex_double* af_t = NULL;
00068         lapack_complex_double* b_t = NULL;
00069         lapack_complex_double* x_t = NULL;
00070         double* err_bnds_norm_t = NULL;
00071         double* err_bnds_comp_t = NULL;
00072         /* Check leading dimension(s) */
00073         if( lda < n ) {
00074             info = -7;
00075             LAPACKE_xerbla( "LAPACKE_zherfsx_work", info );
00076             return info;
00077         }
00078         if( ldaf < n ) {
00079             info = -9;
00080             LAPACKE_xerbla( "LAPACKE_zherfsx_work", info );
00081             return info;
00082         }
00083         if( ldb < nrhs ) {
00084             info = -13;
00085             LAPACKE_xerbla( "LAPACKE_zherfsx_work", info );
00086             return info;
00087         }
00088         if( ldx < nrhs ) {
00089             info = -15;
00090             LAPACKE_xerbla( "LAPACKE_zherfsx_work", info );
00091             return info;
00092         }
00093         /* Allocate memory for temporary array(s) */
00094         a_t = (lapack_complex_double*)
00095             LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
00096         if( a_t == NULL ) {
00097             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00098             goto exit_level_0;
00099         }
00100         af_t = (lapack_complex_double*)
00101             LAPACKE_malloc( sizeof(lapack_complex_double) * ldaf_t * MAX(1,n) );
00102         if( af_t == NULL ) {
00103             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00104             goto exit_level_1;
00105         }
00106         b_t = (lapack_complex_double*)
00107             LAPACKE_malloc( sizeof(lapack_complex_double) *
00108                             ldb_t * MAX(1,nrhs) );
00109         if( b_t == NULL ) {
00110             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00111             goto exit_level_2;
00112         }
00113         x_t = (lapack_complex_double*)
00114             LAPACKE_malloc( sizeof(lapack_complex_double) *
00115                             ldx_t * MAX(1,nrhs) );
00116         if( x_t == NULL ) {
00117             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00118             goto exit_level_3;
00119         }
00120         err_bnds_norm_t = (double*)
00121             LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
00122         if( err_bnds_norm_t == NULL ) {
00123             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00124             goto exit_level_4;
00125         }
00126         err_bnds_comp_t = (double*)
00127             LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
00128         if( err_bnds_comp_t == NULL ) {
00129             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00130             goto exit_level_5;
00131         }
00132         /* Transpose input matrices */
00133         LAPACKE_zhe_trans( matrix_order, uplo, n, a, lda, a_t, lda_t );
00134         LAPACKE_zhe_trans( matrix_order, uplo, n, af, ldaf, af_t, ldaf_t );
00135         LAPACKE_zge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
00136         LAPACKE_zge_trans( matrix_order, n, nrhs, x, ldx, x_t, ldx_t );
00137         /* Call LAPACK function and adjust info */
00138         LAPACK_zherfsx( &uplo, &equed, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t,
00139                         ipiv, s, b_t, &ldb_t, x_t, &ldx_t, rcond, berr,
00140                         &n_err_bnds, err_bnds_norm_t, err_bnds_comp_t, &nparams,
00141                         params, work, rwork, &info );
00142         if( info < 0 ) {
00143             info = info - 1;
00144         }
00145         /* Transpose output matrices */
00146         LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
00147         LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
00148                            nrhs, err_bnds_norm, nrhs );
00149         LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
00150                            nrhs, err_bnds_comp, nrhs );
00151         /* Release memory and exit */
00152         LAPACKE_free( err_bnds_comp_t );
00153 exit_level_5:
00154         LAPACKE_free( err_bnds_norm_t );
00155 exit_level_4:
00156         LAPACKE_free( x_t );
00157 exit_level_3:
00158         LAPACKE_free( b_t );
00159 exit_level_2:
00160         LAPACKE_free( af_t );
00161 exit_level_1:
00162         LAPACKE_free( a_t );
00163 exit_level_0:
00164         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00165             LAPACKE_xerbla( "LAPACKE_zherfsx_work", info );
00166         }
00167     } else {
00168         info = -1;
00169         LAPACKE_xerbla( "LAPACKE_zherfsx_work", info );
00170     }
00171     return info;
00172 }


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