ztrcon_1.c
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00002   Copyright (c) 2010, Intel Corp.
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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 * ztrcon_1 is the test program for the C interface to LAPACK
00036 * routine ztrcon
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_ztrcon( char *norm, char *uplo, char *diag,
00055                                  lapack_int *n, lapack_int *lda );
00056 static void init_a( lapack_int size, lapack_complex_double *a );
00057 static void init_work( lapack_int size, lapack_complex_double *work );
00058 static void init_rwork( lapack_int size, double *rwork );
00059 static int compare_ztrcon( double rcond, double rcond_i, lapack_int info,
00060                            lapack_int info_i );
00061 
00062 int main(void)
00063 {
00064     /* Local scalars */
00065     char norm, norm_i;
00066     char uplo, uplo_i;
00067     char diag, diag_i;
00068     lapack_int n, n_i;
00069     lapack_int lda, lda_i;
00070     lapack_int lda_r;
00071     double rcond, rcond_i;
00072     lapack_int info, info_i;
00073     lapack_int i;
00074     int failed;
00075 
00076     /* Local arrays */
00077     lapack_complex_double *a = NULL, *a_i = NULL;
00078     lapack_complex_double *work = NULL, *work_i = NULL;
00079     double *rwork = NULL, *rwork_i = NULL;
00080     lapack_complex_double *a_r = NULL;
00081 
00082     /* Iniitialize the scalar parameters */
00083     init_scalars_ztrcon( &norm, &uplo, &diag, &n, &lda );
00084     lda_r = n+2;
00085     norm_i = norm;
00086     uplo_i = uplo;
00087     diag_i = diag;
00088     n_i = n;
00089     lda_i = lda;
00090 
00091     /* Allocate memory for the LAPACK routine arrays */
00092     a = (lapack_complex_double *)
00093         LAPACKE_malloc( lda*n * sizeof(lapack_complex_double) );
00094     work = (lapack_complex_double *)
00095         LAPACKE_malloc( 2*n * sizeof(lapack_complex_double) );
00096     rwork = (double *)LAPACKE_malloc( n * sizeof(double) );
00097 
00098     /* Allocate memory for the C interface function arrays */
00099     a_i = (lapack_complex_double *)
00100         LAPACKE_malloc( lda*n * sizeof(lapack_complex_double) );
00101     work_i = (lapack_complex_double *)
00102         LAPACKE_malloc( 2*n * sizeof(lapack_complex_double) );
00103     rwork_i = (double *)LAPACKE_malloc( n * sizeof(double) );
00104 
00105     /* Allocate memory for the row-major arrays */
00106     a_r = (lapack_complex_double *)
00107         LAPACKE_malloc( n*(n+2) * sizeof(lapack_complex_double) );
00108 
00109     /* Initialize input arrays */
00110     init_a( lda*n, a );
00111     init_work( 2*n, work );
00112     init_rwork( n, rwork );
00113 
00114     /* Call the LAPACK routine */
00115     ztrcon_( &norm, &uplo, &diag, &n, a, &lda, &rcond, work, rwork, &info );
00116 
00117     /* Initialize input data, call the column-major middle-level
00118      * interface to LAPACK routine and check the results */
00119     for( i = 0; i < lda*n; i++ ) {
00120         a_i[i] = a[i];
00121     }
00122     for( i = 0; i < 2*n; i++ ) {
00123         work_i[i] = work[i];
00124     }
00125     for( i = 0; i < n; i++ ) {
00126         rwork_i[i] = rwork[i];
00127     }
00128     info_i = LAPACKE_ztrcon_work( LAPACK_COL_MAJOR, norm_i, uplo_i, diag_i, n_i,
00129                                   a_i, lda_i, &rcond_i, work_i, rwork_i );
00130 
00131     failed = compare_ztrcon( rcond, rcond_i, info, info_i );
00132     if( failed == 0 ) {
00133         printf( "PASSED: column-major middle-level interface to ztrcon\n" );
00134     } else {
00135         printf( "FAILED: column-major middle-level interface to ztrcon\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 < lda*n; i++ ) {
00141         a_i[i] = a[i];
00142     }
00143     for( i = 0; i < 2*n; i++ ) {
00144         work_i[i] = work[i];
00145     }
00146     for( i = 0; i < n; i++ ) {
00147         rwork_i[i] = rwork[i];
00148     }
00149     info_i = LAPACKE_ztrcon( LAPACK_COL_MAJOR, norm_i, uplo_i, diag_i, n_i, a_i,
00150                              lda_i, &rcond_i );
00151 
00152     failed = compare_ztrcon( rcond, rcond_i, info, info_i );
00153     if( failed == 0 ) {
00154         printf( "PASSED: column-major high-level interface to ztrcon\n" );
00155     } else {
00156         printf( "FAILED: column-major high-level interface to ztrcon\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 < lda*n; i++ ) {
00162         a_i[i] = a[i];
00163     }
00164     for( i = 0; i < 2*n; i++ ) {
00165         work_i[i] = work[i];
00166     }
00167     for( i = 0; i < n; i++ ) {
00168         rwork_i[i] = rwork[i];
00169     }
00170 
00171     LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, a_i, lda, a_r, n+2 );
00172     info_i = LAPACKE_ztrcon_work( LAPACK_ROW_MAJOR, norm_i, uplo_i, diag_i, n_i,
00173                                   a_r, lda_r, &rcond_i, work_i, rwork_i );
00174 
00175     failed = compare_ztrcon( rcond, rcond_i, info, info_i );
00176     if( failed == 0 ) {
00177         printf( "PASSED: row-major middle-level interface to ztrcon\n" );
00178     } else {
00179         printf( "FAILED: row-major middle-level interface to ztrcon\n" );
00180     }
00181 
00182     /* Initialize input data, call the row-major high-level
00183      * interface to LAPACK routine and check the results */
00184     for( i = 0; i < lda*n; i++ ) {
00185         a_i[i] = a[i];
00186     }
00187     for( i = 0; i < 2*n; i++ ) {
00188         work_i[i] = work[i];
00189     }
00190     for( i = 0; i < n; i++ ) {
00191         rwork_i[i] = rwork[i];
00192     }
00193 
00194     /* Init row_major arrays */
00195     LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, a_i, lda, a_r, n+2 );
00196     info_i = LAPACKE_ztrcon( LAPACK_ROW_MAJOR, norm_i, uplo_i, diag_i, n_i, a_r,
00197                              lda_r, &rcond_i );
00198 
00199     failed = compare_ztrcon( rcond, rcond_i, info, info_i );
00200     if( failed == 0 ) {
00201         printf( "PASSED: row-major high-level interface to ztrcon\n" );
00202     } else {
00203         printf( "FAILED: row-major high-level interface to ztrcon\n" );
00204     }
00205 
00206     /* Release memory */
00207     if( a != NULL ) {
00208         LAPACKE_free( a );
00209     }
00210     if( a_i != NULL ) {
00211         LAPACKE_free( a_i );
00212     }
00213     if( a_r != NULL ) {
00214         LAPACKE_free( a_r );
00215     }
00216     if( work != NULL ) {
00217         LAPACKE_free( work );
00218     }
00219     if( work_i != NULL ) {
00220         LAPACKE_free( work_i );
00221     }
00222     if( rwork != NULL ) {
00223         LAPACKE_free( rwork );
00224     }
00225     if( rwork_i != NULL ) {
00226         LAPACKE_free( rwork_i );
00227     }
00228 
00229     return 0;
00230 }
00231 
00232 /* Auxiliary function: ztrcon scalar parameters initialization */
00233 static void init_scalars_ztrcon( char *norm, char *uplo, char *diag,
00234                                  lapack_int *n, lapack_int *lda )
00235 {
00236     *norm = '1';
00237     *uplo = 'L';
00238     *diag = 'N';
00239     *n = 4;
00240     *lda = 8;
00241 
00242     return;
00243 }
00244 
00245 /* Auxiliary functions: ztrcon array parameters initialization */
00246 static void init_a( lapack_int size, lapack_complex_double *a ) {
00247     lapack_int i;
00248     for( i = 0; i < size; i++ ) {
00249         a[i] = lapack_make_complex_double( 0.0, 0.0 );
00250     }
00251     a[0] = lapack_make_complex_double( 4.78000000000000020e+000,
00252                                        4.55999999999999960e+000 );
00253     a[8] = lapack_make_complex_double( 0.00000000000000000e+000,
00254                                        0.00000000000000000e+000 );
00255     a[16] = lapack_make_complex_double( 0.00000000000000000e+000,
00256                                         0.00000000000000000e+000 );
00257     a[24] = lapack_make_complex_double( 0.00000000000000000e+000,
00258                                         0.00000000000000000e+000 );
00259     a[1] = lapack_make_complex_double( 2.00000000000000000e+000,
00260                                        -2.99999999999999990e-001 );
00261     a[9] = lapack_make_complex_double( -4.11000000000000030e+000,
00262                                        1.25000000000000000e+000 );
00263     a[17] = lapack_make_complex_double( 0.00000000000000000e+000,
00264                                         0.00000000000000000e+000 );
00265     a[25] = lapack_make_complex_double( 0.00000000000000000e+000,
00266                                         0.00000000000000000e+000 );
00267     a[2] = lapack_make_complex_double( 2.89000000000000010e+000,
00268                                        -1.34000000000000010e+000 );
00269     a[10] = lapack_make_complex_double( 2.35999999999999990e+000,
00270                                         -4.25000000000000000e+000 );
00271     a[18] = lapack_make_complex_double( 4.15000000000000040e+000,
00272                                         8.00000000000000040e-001 );
00273     a[26] = lapack_make_complex_double( 0.00000000000000000e+000,
00274                                         0.00000000000000000e+000 );
00275     a[3] = lapack_make_complex_double( -1.88999999999999990e+000,
00276                                        1.14999999999999990e+000 );
00277     a[11] = lapack_make_complex_double( 4.00000000000000010e-002,
00278                                         -3.68999999999999990e+000 );
00279     a[19] = lapack_make_complex_double( -2.00000000000000000e-002,
00280                                         4.60000000000000020e-001 );
00281     a[27] = lapack_make_complex_double( 3.30000000000000020e-001,
00282                                         -2.60000000000000010e-001 );
00283 }
00284 static void init_work( lapack_int size, lapack_complex_double *work ) {
00285     lapack_int i;
00286     for( i = 0; i < size; i++ ) {
00287         work[i] = lapack_make_complex_double( 0.0, 0.0 );
00288     }
00289 }
00290 static void init_rwork( lapack_int size, double *rwork ) {
00291     lapack_int i;
00292     for( i = 0; i < size; i++ ) {
00293         rwork[i] = 0;
00294     }
00295 }
00296 
00297 /* Auxiliary function: C interface to ztrcon results check */
00298 /* Return value: 0 - test is passed, non-zero - test is failed */
00299 static int compare_ztrcon( double rcond, double rcond_i, lapack_int info,
00300                            lapack_int info_i )
00301 {
00302     int failed = 0;
00303     failed += compare_doubles(rcond,rcond_i);
00304     failed += (info == info_i) ? 0 : 1;
00305     if( info != 0 || info_i != 0 ) {
00306         printf( "info=%d, info_i=%d\n",(int)info,(int)info_i );
00307     }
00308 
00309     return failed;
00310 }


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