zpptrf_1.c
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00002   Copyright (c) 2010, Intel Corp.
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00004 
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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 * zpptrf_1 is the test program for the C interface to LAPACK
00036 * routine zpptrf
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_zpptrf( char *uplo, lapack_int *n );
00055 static void init_ap( lapack_int size, lapack_complex_double *ap );
00056 static int compare_zpptrf( lapack_complex_double *ap,
00057                            lapack_complex_double *ap_i, lapack_int info,
00058                            lapack_int info_i, lapack_int n );
00059 
00060 int main(void)
00061 {
00062     /* Local scalars */
00063     char uplo, uplo_i;
00064     lapack_int n, n_i;
00065     lapack_int info, info_i;
00066     lapack_int i;
00067     int failed;
00068 
00069     /* Local arrays */
00070     lapack_complex_double *ap = NULL, *ap_i = NULL;
00071     lapack_complex_double *ap_save = NULL;
00072     lapack_complex_double *ap_r = NULL;
00073 
00074     /* Iniitialize the scalar parameters */
00075     init_scalars_zpptrf( &uplo, &n );
00076     uplo_i = uplo;
00077     n_i = n;
00078 
00079     /* Allocate memory for the LAPACK routine arrays */
00080     ap = (lapack_complex_double *)
00081         LAPACKE_malloc( ((n*(n+1)/2)) * sizeof(lapack_complex_double) );
00082 
00083     /* Allocate memory for the C interface function arrays */
00084     ap_i = (lapack_complex_double *)
00085         LAPACKE_malloc( ((n*(n+1)/2)) * sizeof(lapack_complex_double) );
00086 
00087     /* Allocate memory for the backup arrays */
00088     ap_save = (lapack_complex_double *)
00089         LAPACKE_malloc( ((n*(n+1)/2)) * sizeof(lapack_complex_double) );
00090 
00091     /* Allocate memory for the row-major arrays */
00092     ap_r = (lapack_complex_double *)
00093         LAPACKE_malloc( n*(n+1)/2 * sizeof(lapack_complex_double) );
00094 
00095     /* Initialize input arrays */
00096     init_ap( (n*(n+1)/2), ap );
00097 
00098     /* Backup the ouptut arrays */
00099     for( i = 0; i < (n*(n+1)/2); i++ ) {
00100         ap_save[i] = ap[i];
00101     }
00102 
00103     /* Call the LAPACK routine */
00104     zpptrf_( &uplo, &n, ap, &info );
00105 
00106     /* Initialize input data, call the column-major middle-level
00107      * interface to LAPACK routine and check the results */
00108     for( i = 0; i < (n*(n+1)/2); i++ ) {
00109         ap_i[i] = ap_save[i];
00110     }
00111     info_i = LAPACKE_zpptrf_work( LAPACK_COL_MAJOR, uplo_i, n_i, ap_i );
00112 
00113     failed = compare_zpptrf( ap, ap_i, info, info_i, n );
00114     if( failed == 0 ) {
00115         printf( "PASSED: column-major middle-level interface to zpptrf\n" );
00116     } else {
00117         printf( "FAILED: column-major middle-level interface to zpptrf\n" );
00118     }
00119 
00120     /* Initialize input data, call the column-major high-level
00121      * interface to LAPACK routine and check the results */
00122     for( i = 0; i < (n*(n+1)/2); i++ ) {
00123         ap_i[i] = ap_save[i];
00124     }
00125     info_i = LAPACKE_zpptrf( LAPACK_COL_MAJOR, uplo_i, n_i, ap_i );
00126 
00127     failed = compare_zpptrf( ap, ap_i, info, info_i, n );
00128     if( failed == 0 ) {
00129         printf( "PASSED: column-major high-level interface to zpptrf\n" );
00130     } else {
00131         printf( "FAILED: column-major high-level interface to zpptrf\n" );
00132     }
00133 
00134     /* Initialize input data, call the row-major middle-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_save[i];
00138     }
00139 
00140     LAPACKE_zpp_trans( LAPACK_COL_MAJOR, uplo, n, ap_i, ap_r );
00141     info_i = LAPACKE_zpptrf_work( LAPACK_ROW_MAJOR, uplo_i, n_i, ap_r );
00142 
00143     LAPACKE_zpp_trans( LAPACK_ROW_MAJOR, uplo, n, ap_r, ap_i );
00144 
00145     failed = compare_zpptrf( ap, ap_i, info, info_i, n );
00146     if( failed == 0 ) {
00147         printf( "PASSED: row-major middle-level interface to zpptrf\n" );
00148     } else {
00149         printf( "FAILED: row-major middle-level interface to zpptrf\n" );
00150     }
00151 
00152     /* Initialize input data, call the row-major high-level
00153      * interface to LAPACK routine and check the results */
00154     for( i = 0; i < (n*(n+1)/2); i++ ) {
00155         ap_i[i] = ap_save[i];
00156     }
00157 
00158     /* Init row_major arrays */
00159     LAPACKE_zpp_trans( LAPACK_COL_MAJOR, uplo, n, ap_i, ap_r );
00160     info_i = LAPACKE_zpptrf( LAPACK_ROW_MAJOR, uplo_i, n_i, ap_r );
00161 
00162     LAPACKE_zpp_trans( LAPACK_ROW_MAJOR, uplo, n, ap_r, ap_i );
00163 
00164     failed = compare_zpptrf( ap, ap_i, info, info_i, n );
00165     if( failed == 0 ) {
00166         printf( "PASSED: row-major high-level interface to zpptrf\n" );
00167     } else {
00168         printf( "FAILED: row-major high-level interface to zpptrf\n" );
00169     }
00170 
00171     /* Release memory */
00172     if( ap != NULL ) {
00173         LAPACKE_free( ap );
00174     }
00175     if( ap_i != NULL ) {
00176         LAPACKE_free( ap_i );
00177     }
00178     if( ap_r != NULL ) {
00179         LAPACKE_free( ap_r );
00180     }
00181     if( ap_save != NULL ) {
00182         LAPACKE_free( ap_save );
00183     }
00184 
00185     return 0;
00186 }
00187 
00188 /* Auxiliary function: zpptrf scalar parameters initialization */
00189 static void init_scalars_zpptrf( char *uplo, lapack_int *n )
00190 {
00191     *uplo = 'L';
00192     *n = 4;
00193 
00194     return;
00195 }
00196 
00197 /* Auxiliary functions: zpptrf array parameters initialization */
00198 static void init_ap( lapack_int size, lapack_complex_double *ap ) {
00199     lapack_int i;
00200     for( i = 0; i < size; i++ ) {
00201         ap[i] = lapack_make_complex_double( 0.0, 0.0 );
00202     }
00203     ap[0] = lapack_make_complex_double( 3.23000000000000000e+000,
00204                                         0.00000000000000000e+000 );
00205     ap[1] = lapack_make_complex_double( 1.51000000000000000e+000,
00206                                         1.91999999999999990e+000 );
00207     ap[2] = lapack_make_complex_double( 1.89999999999999990e+000,
00208                                         -8.39999999999999970e-001 );
00209     ap[3] = lapack_make_complex_double( 4.19999999999999980e-001,
00210                                         -2.50000000000000000e+000 );
00211     ap[4] = lapack_make_complex_double( 3.58000000000000010e+000,
00212                                         0.00000000000000000e+000 );
00213     ap[5] = lapack_make_complex_double( -2.30000000000000010e-001,
00214                                         -1.11000000000000010e+000 );
00215     ap[6] = lapack_make_complex_double( -1.17999999999999990e+000,
00216                                         -1.37000000000000010e+000 );
00217     ap[7] = lapack_make_complex_double( 4.08999999999999990e+000,
00218                                         0.00000000000000000e+000 );
00219     ap[8] = lapack_make_complex_double( 2.33000000000000010e+000,
00220                                         1.40000000000000010e-001 );
00221     ap[9] = lapack_make_complex_double( 4.29000000000000000e+000,
00222                                         0.00000000000000000e+000 );
00223 }
00224 
00225 /* Auxiliary function: C interface to zpptrf results check */
00226 /* Return value: 0 - test is passed, non-zero - test is failed */
00227 static int compare_zpptrf( lapack_complex_double *ap,
00228                            lapack_complex_double *ap_i, lapack_int info,
00229                            lapack_int info_i, lapack_int n )
00230 {
00231     lapack_int i;
00232     int failed = 0;
00233     for( i = 0; i < (n*(n+1)/2); i++ ) {
00234         failed += compare_complex_doubles(ap[i],ap_i[i]);
00235     }
00236     failed += (info == info_i) ? 0 : 1;
00237     if( info != 0 || info_i != 0 ) {
00238         printf( "info=%d, info_i=%d\n",(int)info,(int)info_i );
00239     }
00240 
00241     return failed;
00242 }


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autogenerated on Sat Jun 8 2019 18:56:43