lapacke_sgbrfsx.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 high-level C interface to LAPACK function sgbrfsx
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_sgbrfsx( int matrix_order, char trans, char equed,
00038                             lapack_int n, lapack_int kl, lapack_int ku,
00039                             lapack_int nrhs, const float* ab, lapack_int ldab,
00040                             const float* afb, lapack_int ldafb,
00041                             const lapack_int* ipiv, const float* r,
00042                             const float* c, const float* b, lapack_int ldb,
00043                             float* x, lapack_int ldx, float* rcond, float* berr,
00044                             lapack_int n_err_bnds, float* err_bnds_norm,
00045                             float* err_bnds_comp, lapack_int nparams,
00046                             float* params )
00047 {
00048     lapack_int info = 0;
00049     lapack_int* iwork = NULL;
00050     float* work = NULL;
00051     if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
00052         LAPACKE_xerbla( "LAPACKE_sgbrfsx", -1 );
00053         return -1;
00054     }
00055 #ifndef LAPACK_DISABLE_NAN_CHECK
00056     /* Optionally check input matrices for NaNs */
00057     if( LAPACKE_sgb_nancheck( matrix_order, n, n, kl, ku, ab, ldab ) ) {
00058         return -8;
00059     }
00060     if( LAPACKE_sgb_nancheck( matrix_order, n, n, kl, kl+ku, afb, ldafb ) ) {
00061         return -10;
00062     }
00063     if( LAPACKE_sge_nancheck( matrix_order, n, nrhs, b, ldb ) ) {
00064         return -15;
00065     }
00066     if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'c' ) ) {
00067         if( LAPACKE_s_nancheck( n, c, 1 ) ) {
00068             return -14;
00069         }
00070     }
00071     if( nparams>0 ) {
00072         if( LAPACKE_s_nancheck( nparams, params, 1 ) ) {
00073             return -25;
00074         }
00075     }
00076     if( LAPACKE_lsame( equed, 'b' ) || LAPACKE_lsame( equed, 'r' ) ) {
00077         if( LAPACKE_s_nancheck( n, r, 1 ) ) {
00078             return -13;
00079         }
00080     }
00081     if( LAPACKE_sge_nancheck( matrix_order, n, nrhs, x, ldx ) ) {
00082         return -17;
00083     }
00084 #endif
00085     /* Allocate memory for working array(s) */
00086     iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
00087     if( iwork == NULL ) {
00088         info = LAPACK_WORK_MEMORY_ERROR;
00089         goto exit_level_0;
00090     }
00091     work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,4*n) );
00092     if( work == NULL ) {
00093         info = LAPACK_WORK_MEMORY_ERROR;
00094         goto exit_level_1;
00095     }
00096     /* Call middle-level interface */
00097     info = LAPACKE_sgbrfsx_work( matrix_order, trans, equed, n, kl, ku, nrhs,
00098                                  ab, ldab, afb, ldafb, ipiv, r, c, b, ldb, x,
00099                                  ldx, rcond, berr, n_err_bnds, err_bnds_norm,
00100                                  err_bnds_comp, nparams, params, work, iwork );
00101     /* Release memory and exit */
00102     LAPACKE_free( work );
00103 exit_level_1:
00104     LAPACKE_free( iwork );
00105 exit_level_0:
00106     if( info == LAPACK_WORK_MEMORY_ERROR ) {
00107         LAPACKE_xerbla( "LAPACKE_sgbrfsx", info );
00108     }
00109     return info;
00110 }


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