200 SUBROUTINE schkrq( DOTYPE, NM, MVAL, NN, NVAL, NNB, NBVAL, NXVAL,
201 $ nrhs, thresh, tsterr, nmax, a, af, aq, ar, ac,
202 $ b, x, xact, tau, work, rwork, iwork, nout )
211 INTEGER NM, NMAX, NN, NNB, NOUT, NRHS
216 INTEGER IWORK( * ), MVAL( * ), NBVAL( * ), NVAL( * ),
218 REAL A( * ), AC( * ), AF( * ), AQ( * ), AR( * ),
219 $ b( * ), rwork( * ), tau( * ), work( * ),
227 parameter ( ntests = 7 )
229 parameter ( ntypes = 8 )
231 parameter ( zero = 0.0e0 )
236 INTEGER I, IK, IM, IMAT, IN, INB, INFO, K, KL, KU, LDA,
237 $ lwork, m, minmn, mode, n, nb, nerrs, nfail, nk,
242 INTEGER ISEED( 4 ), ISEEDY( 4 ), KVAL( 4 )
243 REAL RESULT( ntests )
259 COMMON / infoc / infot, nunit, ok, lerr
260 COMMON / srnamc / srnamt
263 DATA iseedy / 1988, 1989, 1990, 1991 /
269 path( 1: 1 ) =
'Single precision'
275 iseed( i ) = iseedy( i )
281 $
CALL serrrq( path, nout )
286 lwork = nmax*max( nmax, nrhs )
298 DO 50 imat = 1, ntypes
302 IF( .NOT.dotype( imat ) )
308 CALL slatb4( path, imat, m, n,
TYPE, KL, KU, ANORM, MODE,
312 CALL slatms( m, n, dist, iseed,
TYPE, RWORK, MODE,
313 $ cndnum, anorm, kl, ku,
'No packing', a, lda,
319 CALL alaerh( path,
'SLATMS', info, 0,
' ', m, n, -1,
320 $ -1, -1, imat, nfail, nerrs, nout )
331 kval( 4 ) = minmn / 2
332 IF( minmn.EQ.0 )
THEN
334 ELSE IF( minmn.EQ.1 )
THEN
336 ELSE IF( minmn.LE.3 )
THEN
362 CALL srqt01( m, n, a, af, aq, ar, lda, tau,
363 $ work, lwork, rwork, result( 1 ) )
364 ELSE IF( m.LE.n )
THEN
369 CALL srqt02( m, n, k, a, af, aq, ar, lda, tau,
370 $ work, lwork, rwork, result( 1 ) )
377 CALL srqt03( m, n, k, af, ac, ar, aq, lda, tau,
378 $ work, lwork, rwork, result( 3 ) )
385 IF( k.EQ.m .AND. inb.EQ.1 )
THEN
391 CALL slarhs( path,
'New',
'Full',
392 $
'No transpose', m, n, 0, 0,
393 $ nrhs, a, lda, xact, lda, b, lda,
396 CALL slacpy(
'Full', m, nrhs, b, lda,
399 CALL sgerqs( m, n, nrhs, af, lda, tau, x,
400 $ lda, work, lwork, info )
405 $
CALL alaerh( path,
'SGERQS', info, 0,
' ',
406 $ m, n, nrhs, -1, nb, imat,
407 $ nfail, nerrs, nout )
409 CALL sget02(
'No transpose', m, n, nrhs, a,
410 $ lda, x, lda, b, lda, rwork,
420 IF( result( i ).GE.thresh )
THEN
421 IF( nfail.EQ.0 .AND. nerrs.EQ.0 )
422 $
CALL alahd( nout, path )
423 WRITE( nout, fmt = 9999 )m, n, k, nb, nx,
424 $ imat, i, result( i )
437 CALL alasum( path, nout, nfail, nrun, nerrs )
439 9999
FORMAT(
' M=', i5,
', N=', i5,
', K=', i5,
', NB=', i4,
', NX=',
440 $ i5,
', type ', i2,
', test(', i2,
')=', g12.5 )
subroutine alahd(IOUNIT, PATH)
ALAHD
subroutine alaerh(PATH, SUBNAM, INFO, INFOE, OPTS, M, N, KL, KU, N5, IMAT, NFAIL, NERRS, NOUT)
ALAERH
subroutine sget02(TRANS, M, N, NRHS, A, LDA, X, LDX, B, LDB, RWORK, RESID)
SGET02
subroutine slatb4(PATH, IMAT, M, N, TYPE, KL, KU, ANORM, MODE, CNDNUM, DIST)
SLATB4
subroutine srqt02(M, N, K, A, AF, Q, R, LDA, TAU, WORK, LWORK, RWORK, RESULT)
SRQT02
subroutine slarhs(PATH, XTYPE, UPLO, TRANS, M, N, KL, KU, NRHS, A, LDA, X, LDX, B, LDB, ISEED, INFO)
SLARHS
subroutine sgerqs(M, N, NRHS, A, LDA, TAU, B, LDB, WORK, LWORK, INFO)
SGERQS
subroutine srqt03(M, N, K, AF, C, CC, Q, LDA, TAU, WORK, LWORK, RWORK, RESULT)
SRQT03
subroutine serrrq(PATH, NUNIT)
SERRRQ
subroutine xlaenv(ISPEC, NVALUE)
XLAENV
subroutine slatms(M, N, DIST, ISEED, SYM, D, MODE, COND, DMAX, KL, KU, PACK, A, LDA, WORK, INFO)
SLATMS
subroutine srqt01(M, N, A, AF, Q, R, LDA, TAU, WORK, LWORK, RWORK, RESULT)
SRQT01
subroutine schkrq(DOTYPE, NM, MVAL, NN, NVAL, NNB, NBVAL, NXVAL, NRHS, THRESH, TSTERR, NMAX, A, AF, AQ, AR, AC, B, X, XACT, TAU, WORK, RWORK, IWORK, NOUT)
SCHKRQ
subroutine slacpy(UPLO, M, N, A, LDA, B, LDB)
SLACPY copies all or part of one two-dimensional array to another.
subroutine alasum(TYPE, NOUT, NFAIL, NRUN, NERRS)
ALASUM