zhecon_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 * zhecon_1 is the test program for the C interface to LAPACK
00036 * routine zhecon
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_zhecon( char *uplo, lapack_int *n, lapack_int *lda,
00055                                  double *anorm );
00056 static void init_a( lapack_int size, lapack_complex_double *a );
00057 static void init_ipiv( lapack_int size, lapack_int *ipiv );
00058 static void init_work( lapack_int size, lapack_complex_double *work );
00059 static int compare_zhecon( 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     lapack_int lda, lda_i;
00068     lapack_int lda_r;
00069     double anorm, anorm_i;
00070     double rcond, rcond_i;
00071     lapack_int info, info_i;
00072     lapack_int i;
00073     int failed;
00074 
00075     /* Local arrays */
00076     lapack_complex_double *a = NULL, *a_i = NULL;
00077     lapack_int *ipiv = NULL, *ipiv_i = NULL;
00078     lapack_complex_double *work = NULL, *work_i = NULL;
00079     lapack_complex_double *a_r = NULL;
00080 
00081     /* Iniitialize the scalar parameters */
00082     init_scalars_zhecon( &uplo, &n, &lda, &anorm );
00083     lda_r = n+2;
00084     uplo_i = uplo;
00085     n_i = n;
00086     lda_i = lda;
00087     anorm_i = anorm;
00088 
00089     /* Allocate memory for the LAPACK routine arrays */
00090     a = (lapack_complex_double *)
00091         LAPACKE_malloc( lda*n * sizeof(lapack_complex_double) );
00092     ipiv = (lapack_int *)LAPACKE_malloc( n * sizeof(lapack_int) );
00093     work = (lapack_complex_double *)
00094         LAPACKE_malloc( 2*n * sizeof(lapack_complex_double) );
00095 
00096     /* Allocate memory for the C interface function arrays */
00097     a_i = (lapack_complex_double *)
00098         LAPACKE_malloc( lda*n * sizeof(lapack_complex_double) );
00099     ipiv_i = (lapack_int *)LAPACKE_malloc( n * sizeof(lapack_int) );
00100     work_i = (lapack_complex_double *)
00101         LAPACKE_malloc( 2*n * sizeof(lapack_complex_double) );
00102 
00103     /* Allocate memory for the row-major arrays */
00104     a_r = (lapack_complex_double *)
00105         LAPACKE_malloc( n*(n+2) * sizeof(lapack_complex_double) );
00106 
00107     /* Initialize input arrays */
00108     init_a( lda*n, a );
00109     init_ipiv( n, ipiv );
00110     init_work( 2*n, work );
00111 
00112     /* Call the LAPACK routine */
00113     zhecon_( &uplo, &n, a, &lda, ipiv, &anorm, &rcond, work, &info );
00114 
00115     /* Initialize input data, call the column-major middle-level
00116      * interface to LAPACK routine and check the results */
00117     for( i = 0; i < lda*n; i++ ) {
00118         a_i[i] = a[i];
00119     }
00120     for( i = 0; i < n; i++ ) {
00121         ipiv_i[i] = ipiv[i];
00122     }
00123     for( i = 0; i < 2*n; i++ ) {
00124         work_i[i] = work[i];
00125     }
00126     info_i = LAPACKE_zhecon_work( LAPACK_COL_MAJOR, uplo_i, n_i, a_i, lda_i,
00127                                   ipiv_i, anorm_i, &rcond_i, work_i );
00128 
00129     failed = compare_zhecon( rcond, rcond_i, info, info_i );
00130     if( failed == 0 ) {
00131         printf( "PASSED: column-major middle-level interface to zhecon\n" );
00132     } else {
00133         printf( "FAILED: column-major middle-level interface to zhecon\n" );
00134     }
00135 
00136     /* Initialize input data, call the column-major high-level
00137      * interface to LAPACK routine and check the results */
00138     for( i = 0; i < lda*n; i++ ) {
00139         a_i[i] = a[i];
00140     }
00141     for( i = 0; i < n; i++ ) {
00142         ipiv_i[i] = ipiv[i];
00143     }
00144     for( i = 0; i < 2*n; i++ ) {
00145         work_i[i] = work[i];
00146     }
00147     info_i = LAPACKE_zhecon( LAPACK_COL_MAJOR, uplo_i, n_i, a_i, lda_i, ipiv_i,
00148                              anorm_i, &rcond_i );
00149 
00150     failed = compare_zhecon( rcond, rcond_i, info, info_i );
00151     if( failed == 0 ) {
00152         printf( "PASSED: column-major high-level interface to zhecon\n" );
00153     } else {
00154         printf( "FAILED: column-major high-level interface to zhecon\n" );
00155     }
00156 
00157     /* Initialize input data, call the row-major middle-level
00158      * interface to LAPACK routine and check the results */
00159     for( i = 0; i < lda*n; i++ ) {
00160         a_i[i] = a[i];
00161     }
00162     for( i = 0; i < n; i++ ) {
00163         ipiv_i[i] = ipiv[i];
00164     }
00165     for( i = 0; i < 2*n; i++ ) {
00166         work_i[i] = work[i];
00167     }
00168 
00169     LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, a_i, lda, a_r, n+2 );
00170     info_i = LAPACKE_zhecon_work( LAPACK_ROW_MAJOR, uplo_i, n_i, a_r, lda_r,
00171                                   ipiv_i, anorm_i, &rcond_i, work_i );
00172 
00173     failed = compare_zhecon( rcond, rcond_i, info, info_i );
00174     if( failed == 0 ) {
00175         printf( "PASSED: row-major middle-level interface to zhecon\n" );
00176     } else {
00177         printf( "FAILED: row-major middle-level interface to zhecon\n" );
00178     }
00179 
00180     /* Initialize input data, call the row-major high-level
00181      * interface to LAPACK routine and check the results */
00182     for( i = 0; i < lda*n; i++ ) {
00183         a_i[i] = a[i];
00184     }
00185     for( i = 0; i < n; i++ ) {
00186         ipiv_i[i] = ipiv[i];
00187     }
00188     for( i = 0; i < 2*n; i++ ) {
00189         work_i[i] = work[i];
00190     }
00191 
00192     /* Init row_major arrays */
00193     LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, a_i, lda, a_r, n+2 );
00194     info_i = LAPACKE_zhecon( LAPACK_ROW_MAJOR, uplo_i, n_i, a_r, lda_r, ipiv_i,
00195                              anorm_i, &rcond_i );
00196 
00197     failed = compare_zhecon( rcond, rcond_i, info, info_i );
00198     if( failed == 0 ) {
00199         printf( "PASSED: row-major high-level interface to zhecon\n" );
00200     } else {
00201         printf( "FAILED: row-major high-level interface to zhecon\n" );
00202     }
00203 
00204     /* Release memory */
00205     if( a != NULL ) {
00206         LAPACKE_free( a );
00207     }
00208     if( a_i != NULL ) {
00209         LAPACKE_free( a_i );
00210     }
00211     if( a_r != NULL ) {
00212         LAPACKE_free( a_r );
00213     }
00214     if( ipiv != NULL ) {
00215         LAPACKE_free( ipiv );
00216     }
00217     if( ipiv_i != NULL ) {
00218         LAPACKE_free( ipiv_i );
00219     }
00220     if( work != NULL ) {
00221         LAPACKE_free( work );
00222     }
00223     if( work_i != NULL ) {
00224         LAPACKE_free( work_i );
00225     }
00226 
00227     return 0;
00228 }
00229 
00230 /* Auxiliary function: zhecon scalar parameters initialization */
00231 static void init_scalars_zhecon( char *uplo, lapack_int *n, lapack_int *lda,
00232                                  double *anorm )
00233 {
00234     *uplo = 'L';
00235     *n = 4;
00236     *lda = 8;
00237     *anorm = 1.46641984095487960e+001;
00238 
00239     return;
00240 }
00241 
00242 /* Auxiliary functions: zhecon array parameters initialization */
00243 static void init_a( lapack_int size, lapack_complex_double *a ) {
00244     lapack_int i;
00245     for( i = 0; i < size; i++ ) {
00246         a[i] = lapack_make_complex_double( 0.0, 0.0 );
00247     }
00248     a[0] = lapack_make_complex_double( -1.36000000000000010e+000,
00249                                        0.00000000000000000e+000 );
00250     a[8] = lapack_make_complex_double( 0.00000000000000000e+000,
00251                                        0.00000000000000000e+000 );
00252     a[16] = lapack_make_complex_double( 0.00000000000000000e+000,
00253                                         0.00000000000000000e+000 );
00254     a[24] = lapack_make_complex_double( 0.00000000000000000e+000,
00255                                         0.00000000000000000e+000 );
00256     a[1] = lapack_make_complex_double( 3.91000000000000010e+000,
00257                                        -1.50000000000000000e+000 );
00258     a[9] = lapack_make_complex_double( -1.84000000000000010e+000,
00259                                        0.00000000000000000e+000 );
00260     a[17] = lapack_make_complex_double( 0.00000000000000000e+000,
00261                                         0.00000000000000000e+000 );
00262     a[25] = lapack_make_complex_double( 0.00000000000000000e+000,
00263                                         0.00000000000000000e+000 );
00264     a[2] = lapack_make_complex_double( 3.10028798127124030e-001,
00265                                        4.33302074396270180e-002 );
00266     a[10] = lapack_make_complex_double( 5.63705048650877560e-001,
00267                                         2.85034950151971610e-001 );
00268     a[18] = lapack_make_complex_double( -5.41762438729157920e+000,
00269                                         0.00000000000000000e+000 );
00270     a[26] = lapack_make_complex_double( 0.00000000000000000e+000,
00271                                         0.00000000000000000e+000 );
00272     a[3] = lapack_make_complex_double( -1.51812020724010200e-001,
00273                                        3.74295842561370500e-001 );
00274     a[11] = lapack_make_complex_double( 3.39658279960360960e-001,
00275                                         3.03145181135563540e-002 );
00276     a[19] = lapack_make_complex_double( 2.99724464607583510e-001,
00277                                         1.57826837278577770e-001 );
00278     a[27] = lapack_make_complex_double( -7.10280989580184220e+000,
00279                                         0.00000000000000000e+000 );
00280 }
00281 static void init_ipiv( lapack_int size, lapack_int *ipiv ) {
00282     lapack_int i;
00283     for( i = 0; i < size; i++ ) {
00284         ipiv[i] = 0;
00285     }
00286     ipiv[0] = -4;
00287     ipiv[1] = -4;
00288     ipiv[2] = 3;
00289     ipiv[3] = 4;
00290 }
00291 static void init_work( lapack_int size, lapack_complex_double *work ) {
00292     lapack_int i;
00293     for( i = 0; i < size; i++ ) {
00294         work[i] = lapack_make_complex_double( 0.0, 0.0 );
00295     }
00296 }
00297 
00298 /* Auxiliary function: C interface to zhecon results check */
00299 /* Return value: 0 - test is passed, non-zero - test is failed */
00300 static int compare_zhecon( double rcond, double rcond_i, lapack_int info,
00301                            lapack_int info_i )
00302 {
00303     int failed = 0;
00304     failed += compare_doubles(rcond,rcond_i);
00305     failed += (info == info_i) ? 0 : 1;
00306     if( info != 0 || info_i != 0 ) {
00307         printf( "info=%d, info_i=%d\n",(int)info,(int)info_i );
00308     }
00309 
00310     return failed;
00311 }


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