1*> \brief \b CCHKPS 2* 3* =========== DOCUMENTATION =========== 4* 5* Online html documentation available at 6* http://www.netlib.org/lapack/explore-html/ 7* 8* Definition: 9* =========== 10* 11* SUBROUTINE CCHKPS( DOTYPE, NN, NVAL, NNB, NBVAL, NRANK, RANKVAL, 12* THRESH, TSTERR, NMAX, A, AFAC, PERM, PIV, WORK, 13* RWORK, NOUT ) 14* 15* .. Scalar Arguments .. 16* REAL THRESH 17* INTEGER NMAX, NN, NNB, NOUT, NRANK 18* LOGICAL TSTERR 19* .. 20* .. Array Arguments .. 21* COMPLEX A( * ), AFAC( * ), PERM( * ), WORK( * ) 22* REAL RWORK( * ) 23* INTEGER NBVAL( * ), NVAL( * ), PIV( * ), RANKVAL( * ) 24* LOGICAL DOTYPE( * ) 25* .. 26* 27* 28*> \par Purpose: 29* ============= 30*> 31*> \verbatim 32*> 33*> CCHKPS tests CPSTRF. 34*> \endverbatim 35* 36* Arguments: 37* ========== 38* 39*> \param[in] DOTYPE 40*> \verbatim 41*> DOTYPE is LOGICAL array, dimension (NTYPES) 42*> The matrix types to be used for testing. Matrices of type j 43*> (for 1 <= j <= NTYPES) are used for testing if DOTYPE(j) = 44*> .TRUE.; if DOTYPE(j) = .FALSE., then type j is not used. 45*> \endverbatim 46*> 47*> \param[in] NN 48*> \verbatim 49*> NN is INTEGER 50*> The number of values of N contained in the vector NVAL. 51*> \endverbatim 52*> 53*> \param[in] NVAL 54*> \verbatim 55*> NVAL is INTEGER array, dimension (NN) 56*> The values of the matrix dimension N. 57*> \endverbatim 58*> 59*> \param[in] NNB 60*> \verbatim 61*> NNB is INTEGER 62*> The number of values of NB contained in the vector NBVAL. 63*> \endverbatim 64*> 65*> \param[in] NBVAL 66*> \verbatim 67*> NBVAL is INTEGER array, dimension (NBVAL) 68*> The values of the block size NB. 69*> \endverbatim 70*> 71*> \param[in] NRANK 72*> \verbatim 73*> NRANK is INTEGER 74*> The number of values of RANK contained in the vector RANKVAL. 75*> \endverbatim 76*> 77*> \param[in] RANKVAL 78*> \verbatim 79*> RANKVAL is INTEGER array, dimension (NBVAL) 80*> The values of the block size NB. 81*> \endverbatim 82*> 83*> \param[in] THRESH 84*> \verbatim 85*> THRESH is REAL 86*> The threshold value for the test ratios. A result is 87*> included in the output file if RESULT >= THRESH. To have 88*> every test ratio printed, use THRESH = 0. 89*> \endverbatim 90*> 91*> \param[in] TSTERR 92*> \verbatim 93*> TSTERR is LOGICAL 94*> Flag that indicates whether error exits are to be tested. 95*> \endverbatim 96*> 97*> \param[in] NMAX 98*> \verbatim 99*> NMAX is INTEGER 100*> The maximum value permitted for N, used in dimensioning the 101*> work arrays. 102*> \endverbatim 103*> 104*> \param[out] A 105*> \verbatim 106*> A is COMPLEX array, dimension (NMAX*NMAX) 107*> \endverbatim 108*> 109*> \param[out] AFAC 110*> \verbatim 111*> AFAC is COMPLEX array, dimension (NMAX*NMAX) 112*> \endverbatim 113*> 114*> \param[out] PERM 115*> \verbatim 116*> PERM is COMPLEX array, dimension (NMAX*NMAX) 117*> \endverbatim 118*> 119*> \param[out] PIV 120*> \verbatim 121*> PIV is INTEGER array, dimension (NMAX) 122*> \endverbatim 123*> 124*> \param[out] WORK 125*> \verbatim 126*> WORK is COMPLEX array, dimension (NMAX*3) 127*> \endverbatim 128*> 129*> \param[out] RWORK 130*> \verbatim 131*> RWORK is REAL array, dimension (NMAX) 132*> \endverbatim 133*> 134*> \param[in] NOUT 135*> \verbatim 136*> NOUT is INTEGER 137*> The unit number for output. 138*> \endverbatim 139* 140* Authors: 141* ======== 142* 143*> \author Univ. of Tennessee 144*> \author Univ. of California Berkeley 145*> \author Univ. of Colorado Denver 146*> \author NAG Ltd. 147* 148*> \date December 2016 149* 150*> \ingroup complex_lin 151* 152* ===================================================================== 153 SUBROUTINE CCHKPS( DOTYPE, NN, NVAL, NNB, NBVAL, NRANK, RANKVAL, 154 $ THRESH, TSTERR, NMAX, A, AFAC, PERM, PIV, WORK, 155 $ RWORK, NOUT ) 156* 157* -- LAPACK test routine (version 3.7.0) -- 158* -- LAPACK is a software package provided by Univ. of Tennessee, -- 159* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- 160* December 2016 161* 162* .. Scalar Arguments .. 163 REAL THRESH 164 INTEGER NMAX, NN, NNB, NOUT, NRANK 165 LOGICAL TSTERR 166* .. 167* .. Array Arguments .. 168 COMPLEX A( * ), AFAC( * ), PERM( * ), WORK( * ) 169 REAL RWORK( * ) 170 INTEGER NBVAL( * ), NVAL( * ), PIV( * ), RANKVAL( * ) 171 LOGICAL DOTYPE( * ) 172* .. 173* 174* ===================================================================== 175* 176* .. Parameters .. 177 REAL ONE 178 PARAMETER ( ONE = 1.0E+0 ) 179 INTEGER NTYPES 180 PARAMETER ( NTYPES = 9 ) 181* .. 182* .. Local Scalars .. 183 REAL ANORM, CNDNUM, RESULT, TOL 184 INTEGER COMPRANK, I, IMAT, IN, INB, INFO, IRANK, IUPLO, 185 $ IZERO, KL, KU, LDA, MODE, N, NB, NERRS, NFAIL, 186 $ NIMAT, NRUN, RANK, RANKDIFF 187 CHARACTER DIST, TYPE, UPLO 188 CHARACTER*3 PATH 189* .. 190* .. Local Arrays .. 191 INTEGER ISEED( 4 ), ISEEDY( 4 ) 192 CHARACTER UPLOS( 2 ) 193* .. 194* .. External Subroutines .. 195 EXTERNAL ALAERH, ALAHD, ALASUM, CERRPS, CLACPY, 196 $ CLATB5, CLATMT, CPST01, CPSTRF, XLAENV 197* .. 198* .. Scalars in Common .. 199 INTEGER INFOT, NUNIT 200 LOGICAL LERR, OK 201 CHARACTER*32 SRNAMT 202* .. 203* .. Common blocks .. 204 COMMON / INFOC / INFOT, NUNIT, OK, LERR 205 COMMON / SRNAMC / SRNAMT 206* .. 207* .. Intrinsic Functions .. 208 INTRINSIC MAX, REAL, CEILING 209* .. 210* .. Data statements .. 211 DATA ISEEDY / 1988, 1989, 1990, 1991 / 212 DATA UPLOS / 'U', 'L' / 213* .. 214* .. Executable Statements .. 215* 216* Initialize constants and the random number seed. 217* 218 PATH( 1: 1 ) = 'Complex Precision' 219 PATH( 2: 3 ) = 'PS' 220 NRUN = 0 221 NFAIL = 0 222 NERRS = 0 223 DO 100 I = 1, 4 224 ISEED( I ) = ISEEDY( I ) 225 100 CONTINUE 226* 227* Test the error exits 228* 229 IF( TSTERR ) 230 $ CALL CERRPS( PATH, NOUT ) 231 INFOT = 0 232* 233* Do for each value of N in NVAL 234* 235 DO 150 IN = 1, NN 236 N = NVAL( IN ) 237 LDA = MAX( N, 1 ) 238 NIMAT = NTYPES 239 IF( N.LE.0 ) 240 $ NIMAT = 1 241* 242 IZERO = 0 243 DO 140 IMAT = 1, NIMAT 244* 245* Do the tests only if DOTYPE( IMAT ) is true. 246* 247 IF( .NOT.DOTYPE( IMAT ) ) 248 $ GO TO 140 249* 250* Do for each value of RANK in RANKVAL 251* 252 DO 130 IRANK = 1, NRANK 253* 254* Only repeat test 3 to 5 for different ranks 255* Other tests use full rank 256* 257 IF( ( IMAT.LT.3 .OR. IMAT.GT.5 ) .AND. IRANK.GT.1 ) 258 $ GO TO 130 259* 260 RANK = CEILING( ( N * REAL( RANKVAL( IRANK ) ) ) 261 $ / 100.E+0 ) 262* 263* 264* Do first for UPLO = 'U', then for UPLO = 'L' 265* 266 DO 120 IUPLO = 1, 2 267 UPLO = UPLOS( IUPLO ) 268* 269* Set up parameters with CLATB5 and generate a test matrix 270* with CLATMT. 271* 272 CALL CLATB5( PATH, IMAT, N, TYPE, KL, KU, ANORM, 273 $ MODE, CNDNUM, DIST ) 274* 275 SRNAMT = 'CLATMT' 276 CALL CLATMT( N, N, DIST, ISEED, TYPE, RWORK, MODE, 277 $ CNDNUM, ANORM, RANK, KL, KU, UPLO, A, 278 $ LDA, WORK, INFO ) 279* 280* Check error code from CLATMT. 281* 282 IF( INFO.NE.0 ) THEN 283 CALL ALAERH( PATH, 'CLATMT', INFO, 0, UPLO, N, 284 $ N, -1, -1, -1, IMAT, NFAIL, NERRS, 285 $ NOUT ) 286 GO TO 120 287 END IF 288* 289* Do for each value of NB in NBVAL 290* 291 DO 110 INB = 1, NNB 292 NB = NBVAL( INB ) 293 CALL XLAENV( 1, NB ) 294* 295* Compute the pivoted L*L' or U'*U factorization 296* of the matrix. 297* 298 CALL CLACPY( UPLO, N, N, A, LDA, AFAC, LDA ) 299 SRNAMT = 'CPSTRF' 300* 301* Use default tolerance 302* 303 TOL = -ONE 304 CALL CPSTRF( UPLO, N, AFAC, LDA, PIV, COMPRANK, 305 $ TOL, RWORK, INFO ) 306* 307* Check error code from CPSTRF. 308* 309 IF( (INFO.LT.IZERO) 310 $ .OR.(INFO.NE.IZERO.AND.RANK.EQ.N) 311 $ .OR.(INFO.LE.IZERO.AND.RANK.LT.N) ) THEN 312 CALL ALAERH( PATH, 'CPSTRF', INFO, IZERO, 313 $ UPLO, N, N, -1, -1, NB, IMAT, 314 $ NFAIL, NERRS, NOUT ) 315 GO TO 110 316 END IF 317* 318* Skip the test if INFO is not 0. 319* 320 IF( INFO.NE.0 ) 321 $ GO TO 110 322* 323* Reconstruct matrix from factors and compute residual. 324* 325* PERM holds permuted L*L^T or U^T*U 326* 327 CALL CPST01( UPLO, N, A, LDA, AFAC, LDA, PERM, LDA, 328 $ PIV, RWORK, RESULT, COMPRANK ) 329* 330* Print information about the tests that did not pass 331* the threshold or where computed rank was not RANK. 332* 333 IF( N.EQ.0 ) 334 $ COMPRANK = 0 335 RANKDIFF = RANK - COMPRANK 336 IF( RESULT.GE.THRESH ) THEN 337 IF( NFAIL.EQ.0 .AND. NERRS.EQ.0 ) 338 $ CALL ALAHD( NOUT, PATH ) 339 WRITE( NOUT, FMT = 9999 )UPLO, N, RANK, 340 $ RANKDIFF, NB, IMAT, RESULT 341 NFAIL = NFAIL + 1 342 END IF 343 NRUN = NRUN + 1 344 110 CONTINUE 345* 346 120 CONTINUE 347 130 CONTINUE 348 140 CONTINUE 349 150 CONTINUE 350* 351* Print a summary of the results. 352* 353 CALL ALASUM( PATH, NOUT, NFAIL, NRUN, NERRS ) 354* 355 9999 FORMAT( ' UPLO = ''', A1, ''', N =', I5, ', RANK =', I3, 356 $ ', Diff =', I5, ', NB =', I4, ', type ', I2, ', Ratio =', 357 $ G12.5 ) 358 RETURN 359* 360* End of CCHKPS 361* 362 END 363