dopmtr_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 * dopmtr_1 is the test program for the C interface to LAPACK
00036 * routine dopmtr
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_dopmtr( char *side, char *uplo, char *trans,
00055                                  lapack_int *m, lapack_int *n,
00056                                  lapack_int *ldc );
00057 static void init_ap( lapack_int size, double *ap );
00058 static void init_tau( lapack_int size, double *tau );
00059 static void init_c( lapack_int size, double *c );
00060 static void init_work( lapack_int size, double *work );
00061 static int compare_dopmtr( double *c, double *c_i, lapack_int info,
00062                            lapack_int info_i, lapack_int ldc, lapack_int n );
00063 
00064 int main(void)
00065 {
00066     /* Local scalars */
00067     char side, side_i;
00068     char uplo, uplo_i;
00069     char trans, trans_i;
00070     lapack_int m, m_i;
00071     lapack_int n, n_i;
00072     lapack_int ldc, ldc_i;
00073     lapack_int ldc_r;
00074     lapack_int info, info_i;
00075     /* Declare scalars */
00076     lapack_int lwork;
00077     lapack_int i;
00078     int failed;
00079 
00080     /* Local arrays */
00081     double *ap = NULL, *ap_i = NULL;
00082     double *tau = NULL, *tau_i = NULL;
00083     double *c = NULL, *c_i = NULL;
00084     double *work = NULL, *work_i = NULL;
00085     double *c_save = NULL;
00086     double *ap_r = NULL;
00087     double *c_r = NULL;
00088 
00089     /* Iniitialize the scalar parameters */
00090     init_scalars_dopmtr( &side, &uplo, &trans, &m, &n, &ldc );
00091     lwork = MAX(m,n);
00092     ldc_r = n+2;
00093     side_i = side;
00094     uplo_i = uplo;
00095     trans_i = trans;
00096     m_i = m;
00097     n_i = n;
00098     ldc_i = ldc;
00099 
00100     /* Allocate memory for the LAPACK routine arrays */
00101     ap = (double *)LAPACKE_malloc( ((m*(m+1)/2)) * sizeof(double) );
00102     tau = (double *)LAPACKE_malloc( (m-1) * sizeof(double) );
00103     c = (double *)LAPACKE_malloc( ldc*n * sizeof(double) );
00104     work = (double *)LAPACKE_malloc( lwork * sizeof(double) );
00105 
00106     /* Allocate memory for the C interface function arrays */
00107     ap_i = (double *)LAPACKE_malloc( ((m*(m+1)/2)) * sizeof(double) );
00108     tau_i = (double *)LAPACKE_malloc( (m-1) * sizeof(double) );
00109     c_i = (double *)LAPACKE_malloc( ldc*n * sizeof(double) );
00110     work_i = (double *)LAPACKE_malloc( lwork * sizeof(double) );
00111 
00112     /* Allocate memory for the backup arrays */
00113     c_save = (double *)LAPACKE_malloc( ldc*n * sizeof(double) );
00114 
00115     /* Allocate memory for the row-major arrays */
00116     ap_r = (double *)LAPACKE_malloc( m*(m+1)/2 * sizeof(double) );
00117     c_r = (double *)LAPACKE_malloc( m*(n+2) * sizeof(double) );
00118 
00119     /* Initialize input arrays */
00120     init_ap( (m*(m+1)/2), ap );
00121     init_tau( (m-1), tau );
00122     init_c( ldc*n, c );
00123     init_work( lwork, work );
00124 
00125     /* Backup the ouptut arrays */
00126     for( i = 0; i < ldc*n; i++ ) {
00127         c_save[i] = c[i];
00128     }
00129 
00130     /* Call the LAPACK routine */
00131     dopmtr_( &side, &uplo, &trans, &m, &n, ap, tau, c, &ldc, work, &info );
00132 
00133     /* Initialize input data, call the column-major middle-level
00134      * interface to LAPACK routine and check the results */
00135     for( i = 0; i < (m*(m+1)/2); i++ ) {
00136         ap_i[i] = ap[i];
00137     }
00138     for( i = 0; i < (m-1); i++ ) {
00139         tau_i[i] = tau[i];
00140     }
00141     for( i = 0; i < ldc*n; i++ ) {
00142         c_i[i] = c_save[i];
00143     }
00144     for( i = 0; i < lwork; i++ ) {
00145         work_i[i] = work[i];
00146     }
00147     info_i = LAPACKE_dopmtr_work( LAPACK_COL_MAJOR, side_i, uplo_i, trans_i,
00148                                   m_i, n_i, ap_i, tau_i, c_i, ldc_i, work_i );
00149 
00150     failed = compare_dopmtr( c, c_i, info, info_i, ldc, n );
00151     if( failed == 0 ) {
00152         printf( "PASSED: column-major middle-level interface to dopmtr\n" );
00153     } else {
00154         printf( "FAILED: column-major middle-level interface to dopmtr\n" );
00155     }
00156 
00157     /* Initialize input data, call the column-major high-level
00158      * interface to LAPACK routine and check the results */
00159     for( i = 0; i < (m*(m+1)/2); i++ ) {
00160         ap_i[i] = ap[i];
00161     }
00162     for( i = 0; i < (m-1); i++ ) {
00163         tau_i[i] = tau[i];
00164     }
00165     for( i = 0; i < ldc*n; i++ ) {
00166         c_i[i] = c_save[i];
00167     }
00168     for( i = 0; i < lwork; i++ ) {
00169         work_i[i] = work[i];
00170     }
00171     info_i = LAPACKE_dopmtr( LAPACK_COL_MAJOR, side_i, uplo_i, trans_i, m_i,
00172                              n_i, ap_i, tau_i, c_i, ldc_i );
00173 
00174     failed = compare_dopmtr( c, c_i, info, info_i, ldc, n );
00175     if( failed == 0 ) {
00176         printf( "PASSED: column-major high-level interface to dopmtr\n" );
00177     } else {
00178         printf( "FAILED: column-major high-level interface to dopmtr\n" );
00179     }
00180 
00181     /* Initialize input data, call the row-major middle-level
00182      * interface to LAPACK routine and check the results */
00183     for( i = 0; i < (m*(m+1)/2); i++ ) {
00184         ap_i[i] = ap[i];
00185     }
00186     for( i = 0; i < (m-1); i++ ) {
00187         tau_i[i] = tau[i];
00188     }
00189     for( i = 0; i < ldc*n; i++ ) {
00190         c_i[i] = c_save[i];
00191     }
00192     for( i = 0; i < lwork; i++ ) {
00193         work_i[i] = work[i];
00194     }
00195 
00196     LAPACKE_dpp_trans( LAPACK_COL_MAJOR, uplo, m, ap_i, ap_r );
00197     LAPACKE_dge_trans( LAPACK_COL_MAJOR, m, n, c_i, ldc, c_r, n+2 );
00198     info_i = LAPACKE_dopmtr_work( LAPACK_ROW_MAJOR, side_i, uplo_i, trans_i,
00199                                   m_i, n_i, ap_r, tau_i, c_r, ldc_r, work_i );
00200 
00201     LAPACKE_dge_trans( LAPACK_ROW_MAJOR, m, n, c_r, n+2, c_i, ldc );
00202 
00203     failed = compare_dopmtr( c, c_i, info, info_i, ldc, n );
00204     if( failed == 0 ) {
00205         printf( "PASSED: row-major middle-level interface to dopmtr\n" );
00206     } else {
00207         printf( "FAILED: row-major middle-level interface to dopmtr\n" );
00208     }
00209 
00210     /* Initialize input data, call the row-major high-level
00211      * interface to LAPACK routine and check the results */
00212     for( i = 0; i < (m*(m+1)/2); i++ ) {
00213         ap_i[i] = ap[i];
00214     }
00215     for( i = 0; i < (m-1); i++ ) {
00216         tau_i[i] = tau[i];
00217     }
00218     for( i = 0; i < ldc*n; i++ ) {
00219         c_i[i] = c_save[i];
00220     }
00221     for( i = 0; i < lwork; i++ ) {
00222         work_i[i] = work[i];
00223     }
00224 
00225     /* Init row_major arrays */
00226     LAPACKE_dpp_trans( LAPACK_COL_MAJOR, uplo, m, ap_i, ap_r );
00227     LAPACKE_dge_trans( LAPACK_COL_MAJOR, m, n, c_i, ldc, c_r, n+2 );
00228     info_i = LAPACKE_dopmtr( LAPACK_ROW_MAJOR, side_i, uplo_i, trans_i, m_i,
00229                              n_i, ap_r, tau_i, c_r, ldc_r );
00230 
00231     LAPACKE_dge_trans( LAPACK_ROW_MAJOR, m, n, c_r, n+2, c_i, ldc );
00232 
00233     failed = compare_dopmtr( c, c_i, info, info_i, ldc, n );
00234     if( failed == 0 ) {
00235         printf( "PASSED: row-major high-level interface to dopmtr\n" );
00236     } else {
00237         printf( "FAILED: row-major high-level interface to dopmtr\n" );
00238     }
00239 
00240     /* Release memory */
00241     if( ap != NULL ) {
00242         LAPACKE_free( ap );
00243     }
00244     if( ap_i != NULL ) {
00245         LAPACKE_free( ap_i );
00246     }
00247     if( ap_r != NULL ) {
00248         LAPACKE_free( ap_r );
00249     }
00250     if( tau != NULL ) {
00251         LAPACKE_free( tau );
00252     }
00253     if( tau_i != NULL ) {
00254         LAPACKE_free( tau_i );
00255     }
00256     if( c != NULL ) {
00257         LAPACKE_free( c );
00258     }
00259     if( c_i != NULL ) {
00260         LAPACKE_free( c_i );
00261     }
00262     if( c_r != NULL ) {
00263         LAPACKE_free( c_r );
00264     }
00265     if( c_save != NULL ) {
00266         LAPACKE_free( c_save );
00267     }
00268     if( work != NULL ) {
00269         LAPACKE_free( work );
00270     }
00271     if( work_i != NULL ) {
00272         LAPACKE_free( work_i );
00273     }
00274 
00275     return 0;
00276 }
00277 
00278 /* Auxiliary function: dopmtr scalar parameters initialization */
00279 static void init_scalars_dopmtr( char *side, char *uplo, char *trans,
00280                                  lapack_int *m, lapack_int *n, lapack_int *ldc )
00281 {
00282     *side = 'L';
00283     *uplo = 'L';
00284     *trans = 'N';
00285     *m = 4;
00286     *n = 2;
00287     *ldc = 8;
00288 
00289     return;
00290 }
00291 
00292 /* Auxiliary functions: dopmtr array parameters initialization */
00293 static void init_ap( lapack_int size, double *ap ) {
00294     lapack_int i;
00295     for( i = 0; i < size; i++ ) {
00296         ap[i] = 0;
00297     }
00298     ap[0] = 2.06999999999999980e+000;
00299     ap[1] = -5.82575317019181590e+000;
00300     ap[2] = 4.33179344221786720e-001;
00301     ap[3] = -1.18608629965489210e-001;
00302     ap[4] = 1.47409370819755310e+000;
00303     ap[5] = 2.62404517879558740e+000;
00304     ap[6] = 8.06288153277579080e-001;
00305     ap[7] = -6.49159507545784330e-001;
00306     ap[8] = 9.16272756321918620e-001;
00307     ap[9] = -1.69493420065176800e+000;
00308 }
00309 static void init_tau( lapack_int size, double *tau ) {
00310     lapack_int i;
00311     for( i = 0; i < size; i++ ) {
00312         tau[i] = 0;
00313     }
00314     tau[0] = 1.66429178973824920e+000;
00315     tau[1] = 1.21204732416214210e+000;
00316     tau[2] = 0.00000000000000000e+000;
00317 }
00318 static void init_c( lapack_int size, double *c ) {
00319     lapack_int i;
00320     for( i = 0; i < size; i++ ) {
00321         c[i] = 0;
00322     }
00323     c[0] = 5.65759178822387240e-001;  /* c[0,0] */
00324     c[8] = -2.32842430803157250e-001;  /* c[0,1] */
00325     c[1] = 6.86917957250591790e-001;  /* c[1,0] */
00326     c[9] = -1.62617096149163560e-001;  /* c[1,1] */
00327     c[2] = -4.39588937213165000e-001;  /* c[2,0] */
00328     c[10] = -3.01727334388271980e-001;  /* c[2,1] */
00329     c[3] = 1.21744970593008300e-001;  /* c[3,0] */
00330     c[11] = 9.10110267022979150e-001;  /* c[3,1] */
00331 }
00332 static void init_work( lapack_int size, double *work ) {
00333     lapack_int i;
00334     for( i = 0; i < size; i++ ) {
00335         work[i] = 0;
00336     }
00337 }
00338 
00339 /* Auxiliary function: C interface to dopmtr results check */
00340 /* Return value: 0 - test is passed, non-zero - test is failed */
00341 static int compare_dopmtr( double *c, double *c_i, lapack_int info,
00342                            lapack_int info_i, lapack_int ldc, lapack_int n )
00343 {
00344     lapack_int i;
00345     int failed = 0;
00346     for( i = 0; i < ldc*n; i++ ) {
00347         failed += compare_doubles(c[i],c_i[i]);
00348     }
00349     failed += (info == info_i) ? 0 : 1;
00350     if( info != 0 || info_i != 0 ) {
00351         printf( "info=%d, info_i=%d\n",(int)info,(int)info_i );
00352     }
00353 
00354     return failed;
00355 }


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