cpocon_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 * cpocon_1 is the test program for the C interface to LAPACK
00036 * routine cpocon
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_cpocon( char *uplo, lapack_int *n, lapack_int *lda,
00055                                  float *anorm );
00056 static void init_a( lapack_int size, lapack_complex_float *a );
00057 static void init_work( lapack_int size, lapack_complex_float *work );
00058 static void init_rwork( lapack_int size, float *rwork );
00059 static int compare_cpocon( float rcond, float 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     float anorm, anorm_i;
00070     float rcond, rcond_i;
00071     lapack_int info, info_i;
00072     lapack_int i;
00073     int failed;
00074 
00075     /* Local arrays */
00076     lapack_complex_float *a = NULL, *a_i = NULL;
00077     lapack_complex_float *work = NULL, *work_i = NULL;
00078     float *rwork = NULL, *rwork_i = NULL;
00079     lapack_complex_float *a_r = NULL;
00080 
00081     /* Iniitialize the scalar parameters */
00082     init_scalars_cpocon( &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_float *)
00091         LAPACKE_malloc( lda*n * sizeof(lapack_complex_float) );
00092     work = (lapack_complex_float *)
00093         LAPACKE_malloc( 2*n * sizeof(lapack_complex_float) );
00094     rwork = (float *)LAPACKE_malloc( n * sizeof(float) );
00095 
00096     /* Allocate memory for the C interface function arrays */
00097     a_i = (lapack_complex_float *)
00098         LAPACKE_malloc( lda*n * sizeof(lapack_complex_float) );
00099     work_i = (lapack_complex_float *)
00100         LAPACKE_malloc( 2*n * sizeof(lapack_complex_float) );
00101     rwork_i = (float *)LAPACKE_malloc( n * sizeof(float) );
00102 
00103     /* Allocate memory for the row-major arrays */
00104     a_r = (lapack_complex_float *)
00105         LAPACKE_malloc( n*(n+2) * sizeof(lapack_complex_float) );
00106 
00107     /* Initialize input arrays */
00108     init_a( lda*n, a );
00109     init_work( 2*n, work );
00110     init_rwork( n, rwork );
00111 
00112     /* Call the LAPACK routine */
00113     cpocon_( &uplo, &n, a, &lda, &anorm, &rcond, work, rwork, &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 < 2*n; i++ ) {
00121         work_i[i] = work[i];
00122     }
00123     for( i = 0; i < n; i++ ) {
00124         rwork_i[i] = rwork[i];
00125     }
00126     info_i = LAPACKE_cpocon_work( LAPACK_COL_MAJOR, uplo_i, n_i, a_i, lda_i,
00127                                   anorm_i, &rcond_i, work_i, rwork_i );
00128 
00129     failed = compare_cpocon( rcond, rcond_i, info, info_i );
00130     if( failed == 0 ) {
00131         printf( "PASSED: column-major middle-level interface to cpocon\n" );
00132     } else {
00133         printf( "FAILED: column-major middle-level interface to cpocon\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 < 2*n; i++ ) {
00142         work_i[i] = work[i];
00143     }
00144     for( i = 0; i < n; i++ ) {
00145         rwork_i[i] = rwork[i];
00146     }
00147     info_i = LAPACKE_cpocon( LAPACK_COL_MAJOR, uplo_i, n_i, a_i, lda_i, anorm_i,
00148                              &rcond_i );
00149 
00150     failed = compare_cpocon( rcond, rcond_i, info, info_i );
00151     if( failed == 0 ) {
00152         printf( "PASSED: column-major high-level interface to cpocon\n" );
00153     } else {
00154         printf( "FAILED: column-major high-level interface to cpocon\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 < 2*n; i++ ) {
00163         work_i[i] = work[i];
00164     }
00165     for( i = 0; i < n; i++ ) {
00166         rwork_i[i] = rwork[i];
00167     }
00168 
00169     LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, a_i, lda, a_r, n+2 );
00170     info_i = LAPACKE_cpocon_work( LAPACK_ROW_MAJOR, uplo_i, n_i, a_r, lda_r,
00171                                   anorm_i, &rcond_i, work_i, rwork_i );
00172 
00173     failed = compare_cpocon( rcond, rcond_i, info, info_i );
00174     if( failed == 0 ) {
00175         printf( "PASSED: row-major middle-level interface to cpocon\n" );
00176     } else {
00177         printf( "FAILED: row-major middle-level interface to cpocon\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 < 2*n; i++ ) {
00186         work_i[i] = work[i];
00187     }
00188     for( i = 0; i < n; i++ ) {
00189         rwork_i[i] = rwork[i];
00190     }
00191 
00192     /* Init row_major arrays */
00193     LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, a_i, lda, a_r, n+2 );
00194     info_i = LAPACKE_cpocon( LAPACK_ROW_MAJOR, uplo_i, n_i, a_r, lda_r, anorm_i,
00195                              &rcond_i );
00196 
00197     failed = compare_cpocon( rcond, rcond_i, info, info_i );
00198     if( failed == 0 ) {
00199         printf( "PASSED: row-major high-level interface to cpocon\n" );
00200     } else {
00201         printf( "FAILED: row-major high-level interface to cpocon\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( work != NULL ) {
00215         LAPACKE_free( work );
00216     }
00217     if( work_i != NULL ) {
00218         LAPACKE_free( work_i );
00219     }
00220     if( rwork != NULL ) {
00221         LAPACKE_free( rwork );
00222     }
00223     if( rwork_i != NULL ) {
00224         LAPACKE_free( rwork_i );
00225     }
00226 
00227     return 0;
00228 }
00229 
00230 /* Auxiliary function: cpocon scalar parameters initialization */
00231 static void init_scalars_cpocon( char *uplo, lapack_int *n, lapack_int *lda,
00232                                  float *anorm )
00233 {
00234     *uplo = 'L';
00235     *n = 4;
00236     *lda = 8;
00237     *anorm = 1.096735668e+001;
00238 
00239     return;
00240 }
00241 
00242 /* Auxiliary functions: cpocon array parameters initialization */
00243 static void init_a( lapack_int size, lapack_complex_float *a ) {
00244     lapack_int i;
00245     for( i = 0; i < size; i++ ) {
00246         a[i] = lapack_make_complex_float( 0.0f, 0.0f );
00247     }
00248     a[0] = lapack_make_complex_float( 1.797220111e+000, 0.000000000e+000 );
00249     a[8] = lapack_make_complex_float( 0.000000000e+000, 0.000000000e+000 );
00250     a[16] = lapack_make_complex_float( 0.000000000e+000, 0.000000000e+000 );
00251     a[24] = lapack_make_complex_float( 0.000000000e+000, 0.000000000e+000 );
00252     a[1] = lapack_make_complex_float( 8.401864767e-001, 1.068316579e+000 );
00253     a[9] = lapack_make_complex_float( 1.316353440e+000, 0.000000000e+000 );
00254     a[17] = lapack_make_complex_float( 0.000000000e+000, 0.000000000e+000 );
00255     a[25] = lapack_make_complex_float( 0.000000000e+000, 0.000000000e+000 );
00256     a[2] = lapack_make_complex_float( 1.057188272e+000, -4.673885107e-001 );
00257     a[10] = lapack_make_complex_float( -4.701749086e-001, 3.130658567e-001 );
00258     a[18] = lapack_make_complex_float( 1.560392976e+000, 0.000000000e+000 );
00259     a[26] = lapack_make_complex_float( 0.000000000e+000, 0.000000000e+000 );
00260     a[3] = lapack_make_complex_float( 2.336942554e-001, -1.391037226e+000 );
00261     a[11] = lapack_make_complex_float( 8.335255086e-002, 3.676066548e-002 );
00262     a[19] = lapack_make_complex_float( 9.359616637e-001, 9.899691939e-001 );
00263     a[27] = lapack_make_complex_float( 6.603333950e-001, 0.000000000e+000 );
00264 }
00265 static void init_work( lapack_int size, lapack_complex_float *work ) {
00266     lapack_int i;
00267     for( i = 0; i < size; i++ ) {
00268         work[i] = lapack_make_complex_float( 0.0f, 0.0f );
00269     }
00270 }
00271 static void init_rwork( lapack_int size, float *rwork ) {
00272     lapack_int i;
00273     for( i = 0; i < size; i++ ) {
00274         rwork[i] = 0;
00275     }
00276 }
00277 
00278 /* Auxiliary function: C interface to cpocon results check */
00279 /* Return value: 0 - test is passed, non-zero - test is failed */
00280 static int compare_cpocon( float rcond, float rcond_i, lapack_int info,
00281                            lapack_int info_i )
00282 {
00283     int failed = 0;
00284     failed += compare_floats(rcond,rcond_i);
00285     failed += (info == info_i) ? 0 : 1;
00286     if( info != 0 || info_i != 0 ) {
00287         printf( "info=%d, info_i=%d\n",(int)info,(int)info_i );
00288     }
00289 
00290     return failed;
00291 }


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