cpbtrf_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 * cpbtrf_1 is the test program for the C interface to LAPACK
00036 * routine cpbtrf
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_cpbtrf( char *uplo, lapack_int *n, lapack_int *kd,
00055                                  lapack_int *ldab );
00056 static void init_ab( lapack_int size, lapack_complex_float *ab );
00057 static int compare_cpbtrf( lapack_complex_float *ab, lapack_complex_float *ab_i,
00058                            lapack_int info, lapack_int info_i, lapack_int ldab,
00059                            lapack_int n );
00060 
00061 int main(void)
00062 {
00063     /* Local scalars */
00064     char uplo, uplo_i;
00065     lapack_int n, n_i;
00066     lapack_int kd, kd_i;
00067     lapack_int ldab, ldab_i;
00068     lapack_int ldab_r;
00069     lapack_int info, info_i;
00070     lapack_int i;
00071     int failed;
00072 
00073     /* Local arrays */
00074     lapack_complex_float *ab = NULL, *ab_i = NULL;
00075     lapack_complex_float *ab_save = NULL;
00076     lapack_complex_float *ab_r = NULL;
00077 
00078     /* Iniitialize the scalar parameters */
00079     init_scalars_cpbtrf( &uplo, &n, &kd, &ldab );
00080     ldab_r = n+2;
00081     uplo_i = uplo;
00082     n_i = n;
00083     kd_i = kd;
00084     ldab_i = ldab;
00085 
00086     /* Allocate memory for the LAPACK routine arrays */
00087     ab = (lapack_complex_float *)
00088         LAPACKE_malloc( ldab*n * sizeof(lapack_complex_float) );
00089 
00090     /* Allocate memory for the C interface function arrays */
00091     ab_i = (lapack_complex_float *)
00092         LAPACKE_malloc( ldab*n * sizeof(lapack_complex_float) );
00093 
00094     /* Allocate memory for the backup arrays */
00095     ab_save = (lapack_complex_float *)
00096         LAPACKE_malloc( ldab*n * sizeof(lapack_complex_float) );
00097 
00098     /* Allocate memory for the row-major arrays */
00099     ab_r = (lapack_complex_float *)
00100         LAPACKE_malloc( (kd+1)*(n+2) * sizeof(lapack_complex_float) );
00101 
00102     /* Initialize input arrays */
00103     init_ab( ldab*n, ab );
00104 
00105     /* Backup the ouptut arrays */
00106     for( i = 0; i < ldab*n; i++ ) {
00107         ab_save[i] = ab[i];
00108     }
00109 
00110     /* Call the LAPACK routine */
00111     cpbtrf_( &uplo, &n, &kd, ab, &ldab, &info );
00112 
00113     /* Initialize input data, call the column-major middle-level
00114      * interface to LAPACK routine and check the results */
00115     for( i = 0; i < ldab*n; i++ ) {
00116         ab_i[i] = ab_save[i];
00117     }
00118     info_i = LAPACKE_cpbtrf_work( LAPACK_COL_MAJOR, uplo_i, n_i, kd_i, ab_i,
00119                                   ldab_i );
00120 
00121     failed = compare_cpbtrf( ab, ab_i, info, info_i, ldab, n );
00122     if( failed == 0 ) {
00123         printf( "PASSED: column-major middle-level interface to cpbtrf\n" );
00124     } else {
00125         printf( "FAILED: column-major middle-level interface to cpbtrf\n" );
00126     }
00127 
00128     /* Initialize input data, call the column-major high-level
00129      * interface to LAPACK routine and check the results */
00130     for( i = 0; i < ldab*n; i++ ) {
00131         ab_i[i] = ab_save[i];
00132     }
00133     info_i = LAPACKE_cpbtrf( LAPACK_COL_MAJOR, uplo_i, n_i, kd_i, ab_i,
00134                              ldab_i );
00135 
00136     failed = compare_cpbtrf( ab, ab_i, info, info_i, ldab, n );
00137     if( failed == 0 ) {
00138         printf( "PASSED: column-major high-level interface to cpbtrf\n" );
00139     } else {
00140         printf( "FAILED: column-major high-level interface to cpbtrf\n" );
00141     }
00142 
00143     /* Initialize input data, call the row-major middle-level
00144      * interface to LAPACK routine and check the results */
00145     for( i = 0; i < ldab*n; i++ ) {
00146         ab_i[i] = ab_save[i];
00147     }
00148 
00149     LAPACKE_cge_trans( LAPACK_COL_MAJOR, kd+1, n, ab_i, ldab, ab_r, n+2 );
00150     info_i = LAPACKE_cpbtrf_work( LAPACK_ROW_MAJOR, uplo_i, n_i, kd_i, ab_r,
00151                                   ldab_r );
00152 
00153     LAPACKE_cge_trans( LAPACK_ROW_MAJOR, kd+1, n, ab_r, n+2, ab_i, ldab );
00154 
00155     failed = compare_cpbtrf( ab, ab_i, info, info_i, ldab, n );
00156     if( failed == 0 ) {
00157         printf( "PASSED: row-major middle-level interface to cpbtrf\n" );
00158     } else {
00159         printf( "FAILED: row-major middle-level interface to cpbtrf\n" );
00160     }
00161 
00162     /* Initialize input data, call the row-major high-level
00163      * interface to LAPACK routine and check the results */
00164     for( i = 0; i < ldab*n; i++ ) {
00165         ab_i[i] = ab_save[i];
00166     }
00167 
00168     /* Init row_major arrays */
00169     LAPACKE_cge_trans( LAPACK_COL_MAJOR, kd+1, n, ab_i, ldab, ab_r, n+2 );
00170     info_i = LAPACKE_cpbtrf( LAPACK_ROW_MAJOR, uplo_i, n_i, kd_i, ab_r,
00171                              ldab_r );
00172 
00173     LAPACKE_cge_trans( LAPACK_ROW_MAJOR, kd+1, n, ab_r, n+2, ab_i, ldab );
00174 
00175     failed = compare_cpbtrf( ab, ab_i, info, info_i, ldab, n );
00176     if( failed == 0 ) {
00177         printf( "PASSED: row-major high-level interface to cpbtrf\n" );
00178     } else {
00179         printf( "FAILED: row-major high-level interface to cpbtrf\n" );
00180     }
00181 
00182     /* Release memory */
00183     if( ab != NULL ) {
00184         LAPACKE_free( ab );
00185     }
00186     if( ab_i != NULL ) {
00187         LAPACKE_free( ab_i );
00188     }
00189     if( ab_r != NULL ) {
00190         LAPACKE_free( ab_r );
00191     }
00192     if( ab_save != NULL ) {
00193         LAPACKE_free( ab_save );
00194     }
00195 
00196     return 0;
00197 }
00198 
00199 /* Auxiliary function: cpbtrf scalar parameters initialization */
00200 static void init_scalars_cpbtrf( char *uplo, lapack_int *n, lapack_int *kd,
00201                                  lapack_int *ldab )
00202 {
00203     *uplo = 'L';
00204     *n = 4;
00205     *kd = 1;
00206     *ldab = 9;
00207 
00208     return;
00209 }
00210 
00211 /* Auxiliary functions: cpbtrf array parameters initialization */
00212 static void init_ab( lapack_int size, lapack_complex_float *ab ) {
00213     lapack_int i;
00214     for( i = 0; i < size; i++ ) {
00215         ab[i] = lapack_make_complex_float( 0.0f, 0.0f );
00216     }
00217     ab[0] = lapack_make_complex_float( 9.390000343e+000, 0.000000000e+000 );
00218     ab[9] = lapack_make_complex_float( 1.690000057e+000, 0.000000000e+000 );
00219     ab[18] = lapack_make_complex_float( 2.650000095e+000, 0.000000000e+000 );
00220     ab[27] = lapack_make_complex_float( 2.170000076e+000, 0.000000000e+000 );
00221     ab[1] = lapack_make_complex_float( 1.080000043e+000, 1.730000019e+000 );
00222     ab[10] = lapack_make_complex_float( -3.999999911e-002, -2.899999917e-001 );
00223     ab[19] = lapack_make_complex_float( -3.300000131e-001, -2.240000010e+000 );
00224     ab[28] = lapack_make_complex_float( 0.000000000e+000, 0.000000000e+000 );
00225 }
00226 
00227 /* Auxiliary function: C interface to cpbtrf results check */
00228 /* Return value: 0 - test is passed, non-zero - test is failed */
00229 static int compare_cpbtrf( lapack_complex_float *ab, lapack_complex_float *ab_i,
00230                            lapack_int info, lapack_int info_i, lapack_int ldab,
00231                            lapack_int n )
00232 {
00233     lapack_int i;
00234     int failed = 0;
00235     for( i = 0; i < ldab*n; i++ ) {
00236         failed += compare_complex_floats(ab[i],ab_i[i]);
00237     }
00238     failed += (info == info_i) ? 0 : 1;
00239     if( info != 0 || info_i != 0 ) {
00240         printf( "info=%d, info_i=%d\n",(int)info,(int)info_i );
00241     }
00242 
00243     return failed;
00244 }


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autogenerated on Sat Jun 8 2019 18:55:32