dspcon_1.c
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00029 /*  Contents: test routine for C interface to LAPACK
00030 *   Author: Intel Corporation
00031 *   Created in March, 2010
00032 *
00033 * Purpose
00034 *
00035 * dspcon_1 is the test program for the C interface to LAPACK
00036 * routine dspcon
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_dspcon( char *uplo, lapack_int *n, double *anorm );
00055 static void init_ap( lapack_int size, double *ap );
00056 static void init_ipiv( lapack_int size, lapack_int *ipiv );
00057 static void init_work( lapack_int size, double *work );
00058 static void init_iwork( lapack_int size, lapack_int *iwork );
00059 static int compare_dspcon( double rcond, double rcond_i, lapack_int info,
00060                            lapack_int info_i );
00061 
00062 int main(void)
00063 {
00064     /* Local scalars */
00065     char uplo, uplo_i;
00066     lapack_int n, n_i;
00067     double anorm, anorm_i;
00068     double rcond, rcond_i;
00069     lapack_int info, info_i;
00070     lapack_int i;
00071     int failed;
00072 
00073     /* Local arrays */
00074     double *ap = NULL, *ap_i = NULL;
00075     lapack_int *ipiv = NULL, *ipiv_i = NULL;
00076     double *work = NULL, *work_i = NULL;
00077     lapack_int *iwork = NULL, *iwork_i = NULL;
00078     double *ap_r = NULL;
00079 
00080     /* Iniitialize the scalar parameters */
00081     init_scalars_dspcon( &uplo, &n, &anorm );
00082     uplo_i = uplo;
00083     n_i = n;
00084     anorm_i = anorm;
00085 
00086     /* Allocate memory for the LAPACK routine arrays */
00087     ap = (double *)LAPACKE_malloc( ((n*(n+1)/2)) * sizeof(double) );
00088     ipiv = (lapack_int *)LAPACKE_malloc( n * sizeof(lapack_int) );
00089     work = (double *)LAPACKE_malloc( 2*n * sizeof(double) );
00090     iwork = (lapack_int *)LAPACKE_malloc( n * sizeof(lapack_int) );
00091 
00092     /* Allocate memory for the C interface function arrays */
00093     ap_i = (double *)LAPACKE_malloc( ((n*(n+1)/2)) * sizeof(double) );
00094     ipiv_i = (lapack_int *)LAPACKE_malloc( n * sizeof(lapack_int) );
00095     work_i = (double *)LAPACKE_malloc( 2*n * sizeof(double) );
00096     iwork_i = (lapack_int *)LAPACKE_malloc( n * sizeof(lapack_int) );
00097 
00098     /* Allocate memory for the row-major arrays */
00099     ap_r = (double *)LAPACKE_malloc( n*(n+1)/2 * sizeof(double) );
00100 
00101     /* Initialize input arrays */
00102     init_ap( (n*(n+1)/2), ap );
00103     init_ipiv( n, ipiv );
00104     init_work( 2*n, work );
00105     init_iwork( n, iwork );
00106 
00107     /* Call the LAPACK routine */
00108     dspcon_( &uplo, &n, ap, ipiv, &anorm, &rcond, work, iwork, &info );
00109 
00110     /* Initialize input data, call the column-major middle-level
00111      * interface to LAPACK routine and check the results */
00112     for( i = 0; i < (n*(n+1)/2); i++ ) {
00113         ap_i[i] = ap[i];
00114     }
00115     for( i = 0; i < n; i++ ) {
00116         ipiv_i[i] = ipiv[i];
00117     }
00118     for( i = 0; i < 2*n; i++ ) {
00119         work_i[i] = work[i];
00120     }
00121     for( i = 0; i < n; i++ ) {
00122         iwork_i[i] = iwork[i];
00123     }
00124     info_i = LAPACKE_dspcon_work( LAPACK_COL_MAJOR, uplo_i, n_i, ap_i, ipiv_i,
00125                                   anorm_i, &rcond_i, work_i, iwork_i );
00126 
00127     failed = compare_dspcon( rcond, rcond_i, info, info_i );
00128     if( failed == 0 ) {
00129         printf( "PASSED: column-major middle-level interface to dspcon\n" );
00130     } else {
00131         printf( "FAILED: column-major middle-level interface to dspcon\n" );
00132     }
00133 
00134     /* Initialize input data, call the column-major high-level
00135      * interface to LAPACK routine and check the results */
00136     for( i = 0; i < (n*(n+1)/2); i++ ) {
00137         ap_i[i] = ap[i];
00138     }
00139     for( i = 0; i < n; i++ ) {
00140         ipiv_i[i] = ipiv[i];
00141     }
00142     for( i = 0; i < 2*n; i++ ) {
00143         work_i[i] = work[i];
00144     }
00145     for( i = 0; i < n; i++ ) {
00146         iwork_i[i] = iwork[i];
00147     }
00148     info_i = LAPACKE_dspcon( LAPACK_COL_MAJOR, uplo_i, n_i, ap_i, ipiv_i,
00149                              anorm_i, &rcond_i );
00150 
00151     failed = compare_dspcon( rcond, rcond_i, info, info_i );
00152     if( failed == 0 ) {
00153         printf( "PASSED: column-major high-level interface to dspcon\n" );
00154     } else {
00155         printf( "FAILED: column-major high-level interface to dspcon\n" );
00156     }
00157 
00158     /* Initialize input data, call the row-major middle-level
00159      * interface to LAPACK routine and check the results */
00160     for( i = 0; i < (n*(n+1)/2); i++ ) {
00161         ap_i[i] = ap[i];
00162     }
00163     for( i = 0; i < n; i++ ) {
00164         ipiv_i[i] = ipiv[i];
00165     }
00166     for( i = 0; i < 2*n; i++ ) {
00167         work_i[i] = work[i];
00168     }
00169     for( i = 0; i < n; i++ ) {
00170         iwork_i[i] = iwork[i];
00171     }
00172 
00173     LAPACKE_dpp_trans( LAPACK_COL_MAJOR, uplo, n, ap_i, ap_r );
00174     info_i = LAPACKE_dspcon_work( LAPACK_ROW_MAJOR, uplo_i, n_i, ap_r, ipiv_i,
00175                                   anorm_i, &rcond_i, work_i, iwork_i );
00176 
00177     failed = compare_dspcon( rcond, rcond_i, info, info_i );
00178     if( failed == 0 ) {
00179         printf( "PASSED: row-major middle-level interface to dspcon\n" );
00180     } else {
00181         printf( "FAILED: row-major middle-level interface to dspcon\n" );
00182     }
00183 
00184     /* Initialize input data, call the row-major high-level
00185      * interface to LAPACK routine and check the results */
00186     for( i = 0; i < (n*(n+1)/2); i++ ) {
00187         ap_i[i] = ap[i];
00188     }
00189     for( i = 0; i < n; i++ ) {
00190         ipiv_i[i] = ipiv[i];
00191     }
00192     for( i = 0; i < 2*n; i++ ) {
00193         work_i[i] = work[i];
00194     }
00195     for( i = 0; i < n; i++ ) {
00196         iwork_i[i] = iwork[i];
00197     }
00198 
00199     /* Init row_major arrays */
00200     LAPACKE_dpp_trans( LAPACK_COL_MAJOR, uplo, n, ap_i, ap_r );
00201     info_i = LAPACKE_dspcon( LAPACK_ROW_MAJOR, uplo_i, n_i, ap_r, ipiv_i,
00202                              anorm_i, &rcond_i );
00203 
00204     failed = compare_dspcon( rcond, rcond_i, info, info_i );
00205     if( failed == 0 ) {
00206         printf( "PASSED: row-major high-level interface to dspcon\n" );
00207     } else {
00208         printf( "FAILED: row-major high-level interface to dspcon\n" );
00209     }
00210 
00211     /* Release memory */
00212     if( ap != NULL ) {
00213         LAPACKE_free( ap );
00214     }
00215     if( ap_i != NULL ) {
00216         LAPACKE_free( ap_i );
00217     }
00218     if( ap_r != NULL ) {
00219         LAPACKE_free( ap_r );
00220     }
00221     if( ipiv != NULL ) {
00222         LAPACKE_free( ipiv );
00223     }
00224     if( ipiv_i != NULL ) {
00225         LAPACKE_free( ipiv_i );
00226     }
00227     if( work != NULL ) {
00228         LAPACKE_free( work );
00229     }
00230     if( work_i != NULL ) {
00231         LAPACKE_free( work_i );
00232     }
00233     if( iwork != NULL ) {
00234         LAPACKE_free( iwork );
00235     }
00236     if( iwork_i != NULL ) {
00237         LAPACKE_free( iwork_i );
00238     }
00239 
00240     return 0;
00241 }
00242 
00243 /* Auxiliary function: dspcon scalar parameters initialization */
00244 static void init_scalars_dspcon( char *uplo, lapack_int *n, double *anorm )
00245 {
00246     *uplo = 'L';
00247     *n = 4;
00248     *anorm = 1.12900000000000010e+001;
00249 
00250     return;
00251 }
00252 
00253 /* Auxiliary functions: dspcon array parameters initialization */
00254 static void init_ap( lapack_int size, double *ap ) {
00255     lapack_int i;
00256     for( i = 0; i < size; i++ ) {
00257         ap[i] = 0;
00258     }
00259     ap[0] = 2.06999999999999980e+000;
00260     ap[1] = 4.20000000000000020e+000;
00261     ap[2] = 2.23041384055834070e-001;
00262     ap[3] = 6.53658376748910360e-001;
00263     ap[4] = 1.14999999999999990e+000;
00264     ap[5] = 8.11501032143910230e-001;
00265     ap[6] = -5.95969723778629450e-001;
00266     ap[7] = -2.59067708640519000e+000;
00267     ap[8] = 3.03084679550618070e-001;
00268     ap[9] = 4.07385198134887610e-001;
00269 }
00270 static void init_ipiv( lapack_int size, lapack_int *ipiv ) {
00271     lapack_int i;
00272     for( i = 0; i < size; i++ ) {
00273         ipiv[i] = 0;
00274     }
00275     ipiv[0] = -3;
00276     ipiv[1] = -3;
00277     ipiv[2] = 3;
00278     ipiv[3] = 4;
00279 }
00280 static void init_work( lapack_int size, double *work ) {
00281     lapack_int i;
00282     for( i = 0; i < size; i++ ) {
00283         work[i] = 0;
00284     }
00285 }
00286 static void init_iwork( lapack_int size, lapack_int *iwork ) {
00287     lapack_int i;
00288     for( i = 0; i < size; i++ ) {
00289         iwork[i] = 0;
00290     }
00291 }
00292 
00293 /* Auxiliary function: C interface to dspcon results check */
00294 /* Return value: 0 - test is passed, non-zero - test is failed */
00295 static int compare_dspcon( double rcond, double rcond_i, lapack_int info,
00296                            lapack_int info_i )
00297 {
00298     int failed = 0;
00299     failed += compare_doubles(rcond,rcond_i);
00300     failed += (info == info_i) ? 0 : 1;
00301     if( info != 0 || info_i != 0 ) {
00302         printf( "info=%d, info_i=%d\n",(int)info,(int)info_i );
00303     }
00304 
00305     return failed;
00306 }


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