lapacke_sgbsvxx_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
00027   THE POSSIBILITY OF SUCH DAMAGE.
00028 ******************************************************************************
00029 * Contents: Native middle-level C interface to LAPACK function sgbsvxx
00030 * Author: Intel Corporation
00031 * Generated October, 2010
00032 *****************************************************************************/
00033 
00034 #include "lapacke.h"
00035 #include "lapacke_utils.h"
00036 
00037 lapack_int LAPACKE_sgbsvxx_work( int matrix_order, char fact, char trans,
00038                                  lapack_int n, lapack_int kl, lapack_int ku,
00039                                  lapack_int nrhs, float* ab, lapack_int ldab,
00040                                  float* afb, lapack_int ldafb, lapack_int* ipiv,
00041                                  char* equed, float* r, float* c, float* b,
00042                                  lapack_int ldb, float* x, lapack_int ldx,
00043                                  float* rcond, float* rpvgrw, float* berr,
00044                                  lapack_int n_err_bnds, float* err_bnds_norm,
00045                                  float* err_bnds_comp, lapack_int nparams,
00046                                  float* params, float* work, lapack_int* iwork )
00047 {
00048     lapack_int info = 0;
00049     if( matrix_order == LAPACK_COL_MAJOR ) {
00050         /* Call LAPACK function and adjust info */
00051         LAPACK_sgbsvxx( &fact, &trans, &n, &kl, &ku, &nrhs, ab, &ldab, afb,
00052                         &ldafb, ipiv, equed, r, c, b, &ldb, x, &ldx, rcond,
00053                         rpvgrw, berr, &n_err_bnds, err_bnds_norm, err_bnds_comp,
00054                         &nparams, params, work, iwork, &info );
00055         if( info < 0 ) {
00056             info = info - 1;
00057         }
00058     } else if( matrix_order == LAPACK_ROW_MAJOR ) {
00059         lapack_int ldab_t = MAX(1,kl+ku+1);
00060         lapack_int ldafb_t = MAX(1,2*kl+ku+1);
00061         lapack_int ldb_t = MAX(1,n);
00062         lapack_int ldx_t = MAX(1,n);
00063         float* ab_t = NULL;
00064         float* afb_t = NULL;
00065         float* b_t = NULL;
00066         float* x_t = NULL;
00067         float* err_bnds_norm_t = NULL;
00068         float* err_bnds_comp_t = NULL;
00069         /* Check leading dimension(s) */
00070         if( ldab < n ) {
00071             info = -9;
00072             LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
00073             return info;
00074         }
00075         if( ldafb < n ) {
00076             info = -11;
00077             LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
00078             return info;
00079         }
00080         if( ldb < nrhs ) {
00081             info = -17;
00082             LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
00083             return info;
00084         }
00085         if( ldx < nrhs ) {
00086             info = -19;
00087             LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
00088             return info;
00089         }
00090         /* Allocate memory for temporary array(s) */
00091         ab_t = (float*)LAPACKE_malloc( sizeof(float) * ldab_t * MAX(1,n) );
00092         if( ab_t == NULL ) {
00093             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00094             goto exit_level_0;
00095         }
00096         afb_t = (float*)LAPACKE_malloc( sizeof(float) * ldafb_t * MAX(1,n) );
00097         if( afb_t == NULL ) {
00098             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00099             goto exit_level_1;
00100         }
00101         b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,nrhs) );
00102         if( b_t == NULL ) {
00103             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00104             goto exit_level_2;
00105         }
00106         x_t = (float*)LAPACKE_malloc( sizeof(float) * ldx_t * MAX(1,nrhs) );
00107         if( x_t == NULL ) {
00108             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00109             goto exit_level_3;
00110         }
00111         err_bnds_norm_t = (float*)
00112             LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
00113         if( err_bnds_norm_t == NULL ) {
00114             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00115             goto exit_level_4;
00116         }
00117         err_bnds_comp_t = (float*)
00118             LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
00119         if( err_bnds_comp_t == NULL ) {
00120             info = LAPACK_TRANSPOSE_MEMORY_ERROR;
00121             goto exit_level_5;
00122         }
00123         /* Transpose input matrices */
00124         LAPACKE_sgb_trans( matrix_order, n, n, kl, ku, ab, ldab, ab_t, ldab_t );
00125         if( LAPACKE_lsame( fact, 'f' ) ) {
00126             LAPACKE_sgb_trans( matrix_order, n, n, kl, kl+ku, afb, ldafb, afb_t,
00127                                ldafb_t );
00128         }
00129         LAPACKE_sge_trans( matrix_order, n, nrhs, b, ldb, b_t, ldb_t );
00130         /* Call LAPACK function and adjust info */
00131         LAPACK_sgbsvxx( &fact, &trans, &n, &kl, &ku, &nrhs, ab_t, &ldab_t,
00132                         afb_t, &ldafb_t, ipiv, equed, r, c, b_t, &ldb_t, x_t,
00133                         &ldx_t, rcond, rpvgrw, berr, &n_err_bnds,
00134                         err_bnds_norm_t, err_bnds_comp_t, &nparams, params,
00135                         work, iwork, &info );
00136         if( info < 0 ) {
00137             info = info - 1;
00138         }
00139         /* Transpose output matrices */
00140         if( LAPACKE_lsame( fact, 'e' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
00141             LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
00142             LAPACKE_sgb_trans( LAPACK_COL_MAJOR, n, n, kl, ku, ab_t, ldab_t, ab,
00143                                ldab );
00144         }
00145         if( LAPACKE_lsame( fact, 'e' ) || LAPACKE_lsame( fact, 'n' ) ) {
00146             LAPACKE_sgb_trans( LAPACK_COL_MAJOR, n, n, kl, kl+ku, afb_t,
00147                                ldafb_t, afb, ldafb );
00148         }
00149         if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
00150             LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
00151             LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
00152         }
00153         LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
00154         LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
00155                            nrhs, err_bnds_norm, nrhs );
00156         LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
00157                            nrhs, err_bnds_comp, nrhs );
00158         /* Release memory and exit */
00159         LAPACKE_free( err_bnds_comp_t );
00160 exit_level_5:
00161         LAPACKE_free( err_bnds_norm_t );
00162 exit_level_4:
00163         LAPACKE_free( x_t );
00164 exit_level_3:
00165         LAPACKE_free( b_t );
00166 exit_level_2:
00167         LAPACKE_free( afb_t );
00168 exit_level_1:
00169         LAPACKE_free( ab_t );
00170 exit_level_0:
00171         if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
00172             LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
00173         }
00174     } else {
00175         info = -1;
00176         LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
00177     }
00178     return info;
00179 }


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