stbcon_1.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: test routine for C interface to LAPACK
00030 *   Author: Intel Corporation
00031 *   Created in March, 2010
00032 *
00033 * Purpose
00034 *
00035 * stbcon_1 is the test program for the C interface to LAPACK
00036 * routine stbcon
00037 * The program doesn't require an input, the input data is hardcoded in the
00038 * test program.
00039 * The program tests the C interface in the four combinations:
00040 *   1) column-major layout, middle-level interface
00041 *   2) column-major layout, high-level interface
00042 *   3) row-major layout, middle-level interface
00043 *   4) row-major layout, high-level interface
00044 * The output of the C interface function is compared to those obtained from
00045 * the corresponiding LAPACK routine with the same input data, and the
00046 * comparison diagnostics is then printed on the standard output having PASSED
00047 * keyword if the test is passed, and FAILED keyword if the test isn't passed.
00048 *****************************************************************************/
00049 #include <stdio.h>
00050 #include "lapacke.h"
00051 #include "lapacke_utils.h"
00052 #include "test_utils.h"
00053 
00054 static void init_scalars_stbcon( char *norm, char *uplo, char *diag,
00055                                  lapack_int *n, lapack_int *kd,
00056                                  lapack_int *ldab );
00057 static void init_ab( lapack_int size, float *ab );
00058 static void init_work( lapack_int size, float *work );
00059 static void init_iwork( lapack_int size, lapack_int *iwork );
00060 static int compare_stbcon( float rcond, float rcond_i, lapack_int info,
00061                            lapack_int info_i );
00062 
00063 int main(void)
00064 {
00065     /* Local scalars */
00066     char norm, norm_i;
00067     char uplo, uplo_i;
00068     char diag, diag_i;
00069     lapack_int n, n_i;
00070     lapack_int kd, kd_i;
00071     lapack_int ldab, ldab_i;
00072     lapack_int ldab_r;
00073     float rcond, rcond_i;
00074     lapack_int info, info_i;
00075     lapack_int i;
00076     int failed;
00077 
00078     /* Local arrays */
00079     float *ab = NULL, *ab_i = NULL;
00080     float *work = NULL, *work_i = NULL;
00081     lapack_int *iwork = NULL, *iwork_i = NULL;
00082     float *ab_r = NULL;
00083 
00084     /* Iniitialize the scalar parameters */
00085     init_scalars_stbcon( &norm, &uplo, &diag, &n, &kd, &ldab );
00086     ldab_r = n+2;
00087     norm_i = norm;
00088     uplo_i = uplo;
00089     diag_i = diag;
00090     n_i = n;
00091     kd_i = kd;
00092     ldab_i = ldab;
00093 
00094     /* Allocate memory for the LAPACK routine arrays */
00095     ab = (float *)LAPACKE_malloc( ldab*n * sizeof(float) );
00096     work = (float *)LAPACKE_malloc( 3*n * sizeof(float) );
00097     iwork = (lapack_int *)LAPACKE_malloc( n * sizeof(lapack_int) );
00098 
00099     /* Allocate memory for the C interface function arrays */
00100     ab_i = (float *)LAPACKE_malloc( ldab*n * sizeof(float) );
00101     work_i = (float *)LAPACKE_malloc( 3*n * sizeof(float) );
00102     iwork_i = (lapack_int *)LAPACKE_malloc( n * sizeof(lapack_int) );
00103 
00104     /* Allocate memory for the row-major arrays */
00105     ab_r = (float *)LAPACKE_malloc( (kd+1)*(n+2) * sizeof(float) );
00106 
00107     /* Initialize input arrays */
00108     init_ab( ldab*n, ab );
00109     init_work( 3*n, work );
00110     init_iwork( n, iwork );
00111 
00112     /* Call the LAPACK routine */
00113     stbcon_( &norm, &uplo, &diag, &n, &kd, ab, &ldab, &rcond, work, iwork,
00114              &info );
00115 
00116     /* Initialize input data, call the column-major middle-level
00117      * interface to LAPACK routine and check the results */
00118     for( i = 0; i < ldab*n; i++ ) {
00119         ab_i[i] = ab[i];
00120     }
00121     for( i = 0; i < 3*n; i++ ) {
00122         work_i[i] = work[i];
00123     }
00124     for( i = 0; i < n; i++ ) {
00125         iwork_i[i] = iwork[i];
00126     }
00127     info_i = LAPACKE_stbcon_work( LAPACK_COL_MAJOR, norm_i, uplo_i, diag_i, n_i,
00128                                   kd_i, ab_i, ldab_i, &rcond_i, work_i,
00129                                   iwork_i );
00130 
00131     failed = compare_stbcon( rcond, rcond_i, info, info_i );
00132     if( failed == 0 ) {
00133         printf( "PASSED: column-major middle-level interface to stbcon\n" );
00134     } else {
00135         printf( "FAILED: column-major middle-level interface to stbcon\n" );
00136     }
00137 
00138     /* Initialize input data, call the column-major high-level
00139      * interface to LAPACK routine and check the results */
00140     for( i = 0; i < ldab*n; i++ ) {
00141         ab_i[i] = ab[i];
00142     }
00143     for( i = 0; i < 3*n; i++ ) {
00144         work_i[i] = work[i];
00145     }
00146     for( i = 0; i < n; i++ ) {
00147         iwork_i[i] = iwork[i];
00148     }
00149     info_i = LAPACKE_stbcon( LAPACK_COL_MAJOR, norm_i, uplo_i, diag_i, n_i,
00150                              kd_i, ab_i, ldab_i, &rcond_i );
00151 
00152     failed = compare_stbcon( rcond, rcond_i, info, info_i );
00153     if( failed == 0 ) {
00154         printf( "PASSED: column-major high-level interface to stbcon\n" );
00155     } else {
00156         printf( "FAILED: column-major high-level interface to stbcon\n" );
00157     }
00158 
00159     /* Initialize input data, call the row-major middle-level
00160      * interface to LAPACK routine and check the results */
00161     for( i = 0; i < ldab*n; i++ ) {
00162         ab_i[i] = ab[i];
00163     }
00164     for( i = 0; i < 3*n; i++ ) {
00165         work_i[i] = work[i];
00166     }
00167     for( i = 0; i < n; i++ ) {
00168         iwork_i[i] = iwork[i];
00169     }
00170 
00171     LAPACKE_sge_trans( LAPACK_COL_MAJOR, kd+1, n, ab_i, ldab, ab_r, n+2 );
00172     info_i = LAPACKE_stbcon_work( LAPACK_ROW_MAJOR, norm_i, uplo_i, diag_i, n_i,
00173                                   kd_i, ab_r, ldab_r, &rcond_i, work_i,
00174                                   iwork_i );
00175 
00176     failed = compare_stbcon( rcond, rcond_i, info, info_i );
00177     if( failed == 0 ) {
00178         printf( "PASSED: row-major middle-level interface to stbcon\n" );
00179     } else {
00180         printf( "FAILED: row-major middle-level interface to stbcon\n" );
00181     }
00182 
00183     /* Initialize input data, call the row-major high-level
00184      * interface to LAPACK routine and check the results */
00185     for( i = 0; i < ldab*n; i++ ) {
00186         ab_i[i] = ab[i];
00187     }
00188     for( i = 0; i < 3*n; i++ ) {
00189         work_i[i] = work[i];
00190     }
00191     for( i = 0; i < n; i++ ) {
00192         iwork_i[i] = iwork[i];
00193     }
00194 
00195     /* Init row_major arrays */
00196     LAPACKE_sge_trans( LAPACK_COL_MAJOR, kd+1, n, ab_i, ldab, ab_r, n+2 );
00197     info_i = LAPACKE_stbcon( LAPACK_ROW_MAJOR, norm_i, uplo_i, diag_i, n_i,
00198                              kd_i, ab_r, ldab_r, &rcond_i );
00199 
00200     failed = compare_stbcon( rcond, rcond_i, info, info_i );
00201     if( failed == 0 ) {
00202         printf( "PASSED: row-major high-level interface to stbcon\n" );
00203     } else {
00204         printf( "FAILED: row-major high-level interface to stbcon\n" );
00205     }
00206 
00207     /* Release memory */
00208     if( ab != NULL ) {
00209         LAPACKE_free( ab );
00210     }
00211     if( ab_i != NULL ) {
00212         LAPACKE_free( ab_i );
00213     }
00214     if( ab_r != NULL ) {
00215         LAPACKE_free( ab_r );
00216     }
00217     if( work != NULL ) {
00218         LAPACKE_free( work );
00219     }
00220     if( work_i != NULL ) {
00221         LAPACKE_free( work_i );
00222     }
00223     if( iwork != NULL ) {
00224         LAPACKE_free( iwork );
00225     }
00226     if( iwork_i != NULL ) {
00227         LAPACKE_free( iwork_i );
00228     }
00229 
00230     return 0;
00231 }
00232 
00233 /* Auxiliary function: stbcon scalar parameters initialization */
00234 static void init_scalars_stbcon( char *norm, char *uplo, char *diag,
00235                                  lapack_int *n, lapack_int *kd,
00236                                  lapack_int *ldab )
00237 {
00238     *norm = '1';
00239     *uplo = 'L';
00240     *diag = 'N';
00241     *n = 4;
00242     *kd = 1;
00243     *ldab = 9;
00244 
00245     return;
00246 }
00247 
00248 /* Auxiliary functions: stbcon array parameters initialization */
00249 static void init_ab( lapack_int size, float *ab ) {
00250     lapack_int i;
00251     for( i = 0; i < size; i++ ) {
00252         ab[i] = 0;
00253     }
00254     ab[0] = -4.159999847e+000;  /* ab[0,0] */
00255     ab[9] = 4.780000210e+000;  /* ab[0,1] */
00256     ab[18] = 6.320000172e+000;  /* ab[0,2] */
00257     ab[27] = 1.599999964e-001;  /* ab[0,3] */
00258     ab[1] = -2.250000000e+000;  /* ab[1,0] */
00259     ab[10] = 5.860000134e+000;  /* ab[1,1] */
00260     ab[19] = -4.820000172e+000;  /* ab[1,2] */
00261     ab[28] = 0.000000000e+000;  /* ab[1,3] */
00262 }
00263 static void init_work( lapack_int size, float *work ) {
00264     lapack_int i;
00265     for( i = 0; i < size; i++ ) {
00266         work[i] = 0;
00267     }
00268 }
00269 static void init_iwork( lapack_int size, lapack_int *iwork ) {
00270     lapack_int i;
00271     for( i = 0; i < size; i++ ) {
00272         iwork[i] = 0;
00273     }
00274 }
00275 
00276 /* Auxiliary function: C interface to stbcon results check */
00277 /* Return value: 0 - test is passed, non-zero - test is failed */
00278 static int compare_stbcon( float rcond, float rcond_i, lapack_int info,
00279                            lapack_int info_i )
00280 {
00281     int failed = 0;
00282     failed += compare_floats(rcond,rcond_i);
00283     failed += (info == info_i) ? 0 : 1;
00284     if( info != 0 || info_i != 0 ) {
00285         printf( "info=%d, info_i=%d\n",(int)info,(int)info_i );
00286     }
00287 
00288     return failed;
00289 }


swiftnav
Author(s):
autogenerated on Sat Jun 8 2019 18:56:14