169 SUBROUTINE schksy( DOTYPE, NN, NVAL, NNB, NBVAL, NNS, NSVAL,
170 $ thresh, tsterr, nmax, a, afac, ainv,
b, x,
171 $ xact, work, rwork, iwork, nout )
180 INTEGER nmax, nn, nnb, nns, nout
185 INTEGER iwork( * ), nbval( * ), nsval( * ), nval( * )
186 REAL a( * ), afac( * ), ainv( * ),
b( * ),
187 $ rwork( * ), work( * ), x( * ), xact( * )
194 parameter( zero = 0.0e+0 )
196 parameter( ntypes = 10 )
198 parameter( ntests = 9 )
201 LOGICAL trfcon, zerot
202 CHARACTER dist, type, uplo, xtype
204 INTEGER i, i1, i2, imat, in, inb, info, ioff, irhs,
205 $ iuplo, izero,
j, k, kl, ku, lda, lwork, mode,
206 $ n, nb, nerrs, nfail, nimat, nrhs, nrun, nt
207 REAL anorm, cndnum, rcond, rcondc
211 INTEGER iseed( 4 ), iseedy( 4 )
212 REAL result( ntests )
233 COMMON / infoc / infot, nunit, ok, lerr
234 COMMON / srnamc / srnamt
237 DATA iseedy / 1988, 1989, 1990, 1991 /
238 DATA uplos /
'U',
'L' /
244 path( 1: 1 ) =
'Single precision'
250 iseed( i ) = iseedy( i )
256 $ CALL
serrsy( path, nout )
278 DO 170 imat = 1, nimat
282 IF( .NOT.dotype( imat ) )
287 zerot = imat.GE.3 .AND. imat.LE.6
288 IF( zerot .AND. n.LT.imat-2 )
294 uplo = uplos( iuplo )
301 CALL
slatb4( path, imat, n, n, type, kl, ku, anorm, mode,
307 CALL
slatms( n, n, dist, iseed, type, rwork, mode,
308 $ cndnum, anorm, kl, ku, uplo, a, lda, work,
314 CALL
alaerh( path,
'SLATMS', info, 0, uplo, n, n, -1,
315 $ -1, -1, imat, nfail, nerrs, nout )
329 ELSE IF( imat.EQ.4 )
THEN
339 IF( iuplo.EQ.1 )
THEN
340 ioff = ( izero-1 )*lda
341 DO 20 i = 1, izero - 1
351 DO 40 i = 1, izero - 1
361 IF( iuplo.EQ.1 )
THEN
408 CALL
slacpy( uplo, n, n, a, lda, afac, lda )
415 lwork = max( 2, nb )*lda
417 CALL
ssytrf( uplo, n, afac, lda, iwork, ainv, lwork,
426 IF( iwork( k ).LT.0 )
THEN
427 IF( iwork( k ).NE.-k )
THEN
431 ELSE IF( iwork( k ).NE.k )
THEN
440 $ CALL
alaerh( path,
'SSYTRF', info, k, uplo, n, n,
441 $ -1, -1, nb, imat, nfail, nerrs, nout )
454 CALL
ssyt01( uplo, n, a, lda, afac, lda, iwork, ainv,
455 $ lda, rwork, result( 1 ) )
464 IF( inb.EQ.1 .AND. .NOT.trfcon )
THEN
465 CALL
slacpy( uplo, n, n, afac, lda, ainv, lda )
467 lwork = (n+nb+1)*(nb+3)
468 CALL
ssytri2( uplo, n, ainv, lda, iwork, work,
474 $ CALL
alaerh( path,
'SSYTRI2', info, -1, uplo, n,
475 $ n, -1, -1, -1, imat, nfail, nerrs,
481 CALL
spot03( uplo, n, a, lda, ainv, lda, work, lda,
482 $ rwork, rcondc, result( 2 ) )
490 IF( result( k ).GE.thresh )
THEN
491 IF( nfail.EQ.0 .AND. nerrs.EQ.0 )
492 $ CALL
alahd( nout, path )
493 WRITE( nout, fmt = 9999 )uplo, n, nb, imat, k,
525 CALL
slarhs( path, xtype, uplo,
' ', n, n, kl, ku,
526 $ nrhs, a, lda, xact, lda,
b, lda,
528 CALL
slacpy(
'Full', n, nrhs,
b, lda, x, lda )
531 CALL
ssytrs( uplo, n, nrhs, afac, lda, iwork, x,
537 $ CALL
alaerh( path,
'SSYTRS', info, 0, uplo, n,
538 $ n, -1, -1, nrhs, imat, nfail,
541 CALL
slacpy(
'Full', n, nrhs,
b, lda, work, lda )
545 CALL
spot02( uplo, n, nrhs, a, lda, x, lda, work,
546 $ lda, rwork, result( 3 ) )
555 CALL
slarhs( path, xtype, uplo,
' ', n, n, kl, ku,
556 $ nrhs, a, lda, xact, lda,
b, lda,
558 CALL
slacpy(
'Full', n, nrhs,
b, lda, x, lda )
561 CALL
ssytrs2( uplo, n, nrhs, afac, lda, iwork, x,
567 $ CALL
alaerh( path,
'SSYTRS2', info, 0, uplo, n,
568 $ n, -1, -1, nrhs, imat, nfail,
571 CALL
slacpy(
'Full', n, nrhs,
b, lda, work, lda )
575 CALL
spot02( uplo, n, nrhs, a, lda, x, lda, work,
576 $ lda, rwork, result( 4 ) )
581 CALL
sget04( n, nrhs, x, lda, xact, lda, rcondc,
588 CALL
ssyrfs( uplo, n, nrhs, a, lda, afac, lda,
589 $ iwork,
b, lda, x, lda, rwork,
590 $ rwork( nrhs+1 ), work, iwork( n+1 ),
596 $ CALL
alaerh( path,
'SSYRFS', info, 0, uplo, n,
597 $ n, -1, -1, nrhs, imat, nfail,
600 CALL
sget04( n, nrhs, x, lda, xact, lda, rcondc,
602 CALL
spot05( uplo, n, nrhs, a, lda,
b, lda, x, lda,
603 $ xact, lda, rwork, rwork( nrhs+1 ),
610 IF( result( k ).GE.thresh )
THEN
611 IF( nfail.EQ.0 .AND. nerrs.EQ.0 )
612 $ CALL
alahd( nout, path )
613 WRITE( nout, fmt = 9998 )uplo, n, nrhs,
614 $ imat, k, result( k )
628 anorm =
slansy(
'1', uplo, n, a, lda, rwork )
630 CALL
ssycon( uplo, n, afac, lda, iwork, anorm, rcond,
631 $ work, iwork( n+1 ), info )
636 $ CALL
alaerh( path,
'SSYCON', info, 0, uplo, n, n,
637 $ -1, -1, -1, imat, nfail, nerrs, nout )
641 result( 9 ) =
sget06( rcond, rcondc )
646 IF( result( 9 ).GE.thresh )
THEN
647 IF( nfail.EQ.0 .AND. nerrs.EQ.0 )
648 $ CALL
alahd( nout, path )
649 WRITE( nout, fmt = 9997 )uplo, n, imat, 9,
662 CALL
alasum( path, nout, nfail, nrun, nerrs )
664 9999
FORMAT(
' UPLO = ''', a1,
''', N =', i5,
', NB =', i4,
', type ',
665 $ i2,
', test ', i2,
', ratio =', g12.5 )
666 9998
FORMAT(
' UPLO = ''', a1,
''', N =', i5,
', NRHS=', i3,
', type ',
667 $ i2,
', test(', i2,
') =', g12.5 )
668 9997
FORMAT(
' UPLO = ''', a1,
''', N =', i5,
',', 10x,
' type ', i2,
669 $
', test(', i2,
') =', g12.5 )