LAPACK 3.12.1
LAPACK: Linear Algebra PACKage
Loading...
Searching...
No Matches

◆ sckglm()

subroutine sckglm ( integer nn,
integer, dimension( * ) mval,
integer, dimension( * ) pval,
integer, dimension( * ) nval,
integer nmats,
integer, dimension( 4 ) iseed,
real thresh,
integer nmax,
real, dimension( * ) a,
real, dimension( * ) af,
real, dimension( * ) b,
real, dimension( * ) bf,
real, dimension( * ) x,
real, dimension( * ) work,
real, dimension( * ) rwork,
integer nin,
integer nout,
integer info )

SCKGLM

Purpose:
!>
!> SCKGLM tests SGGGLM - subroutine for solving generalized linear
!>                       model problem.
!>
Parameters
[in]NN
!>          NN is INTEGER
!>          The number of values of N, M and P contained in the vectors
!>          NVAL, MVAL and PVAL.
!>
[in]MVAL
!>          MVAL is INTEGER array, dimension (NN)
!>          The values of the matrix column dimension M.
!>
[in]PVAL
!>          PVAL is INTEGER array, dimension (NN)
!>          The values of the matrix column dimension P.
!>
[in]NVAL
!>          NVAL is INTEGER array, dimension (NN)
!>          The values of the matrix row dimension N.
!>
[in]NMATS
!>          NMATS is INTEGER
!>          The number of matrix types to be tested for each combination
!>          of matrix dimensions.  If NMATS >= NTYPES (the maximum
!>          number of matrix types), then all the different types are
!>          generated for testing.  If NMATS < NTYPES, another input line
!>          is read to get the numbers of the matrix types to be used.
!>
[in,out]ISEED
!>          ISEED is INTEGER array, dimension (4)
!>          On entry, the seed of the random number generator.  The array
!>          elements should be between 0 and 4095, otherwise they will be
!>          reduced mod 4096, and ISEED(4) must be odd.
!>          On exit, the next seed in the random number sequence after
!>          all the test matrices have been generated.
!>
[in]THRESH
!>          THRESH is REAL
!>          The threshold value for the test ratios.  A result is
!>          included in the output file if RESID >= THRESH.  To have
!>          every test ratio printed, use THRESH = 0.
!>
[in]NMAX
!>          NMAX is INTEGER
!>          The maximum value permitted for M or N, used in dimensioning
!>          the work arrays.
!>
[out]A
!>          A is REAL array, dimension (NMAX*NMAX)
!>
[out]AF
!>          AF is REAL array, dimension (NMAX*NMAX)
!>
[out]B
!>          B is REAL array, dimension (NMAX*NMAX)
!>
[out]BF
!>          BF is REAL array, dimension (NMAX*NMAX)
!>
[out]X
!>          X is REAL array, dimension (4*NMAX)
!>
[out]RWORK
!>          RWORK is REAL array, dimension (NMAX)
!>
[out]WORK
!>          WORK is REAL array, dimension (NMAX*NMAX)
!>
[in]NIN
!>          NIN is INTEGER
!>          The unit number for input.
!>
[in]NOUT
!>          NOUT is INTEGER
!>          The unit number for output.
!>
[out]INFO
!>          INFO is INTEGER
!>          = 0 :  successful exit
!>          > 0 :  If SLATMS returns an error code, the absolute value
!>                 of it is returned.
!>
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.

Definition at line 164 of file sckglm.f.

167*
168* -- LAPACK test routine --
169* -- LAPACK is a software package provided by Univ. of Tennessee, --
170* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
171*
172* .. Scalar Arguments ..
173 INTEGER INFO, NIN, NMATS, NMAX, NN, NOUT
174 REAL THRESH
175* ..
176* .. Array Arguments ..
177 INTEGER ISEED( 4 ), MVAL( * ), NVAL( * ), PVAL( * )
178 REAL A( * ), AF( * ), B( * ), BF( * ), RWORK( * ),
179 $ WORK( * ), X( * )
180* ..
181*
182* =====================================================================
183*
184* .. Parameters ..
185 INTEGER NTYPES
186 parameter( ntypes = 8 )
187* ..
188* .. Local Scalars ..
189 LOGICAL FIRSTT
190 CHARACTER DISTA, DISTB, TYPE
191 CHARACTER*3 PATH
192 INTEGER I, IINFO, IK, IMAT, KLA, KLB, KUA, KUB, LDA,
193 $ LDB, LWORK, M, MODEA, MODEB, N, NFAIL, NRUN, P
194 REAL ANORM, BNORM, CNDNMA, CNDNMB, RESID
195* ..
196* .. Local Arrays ..
197 LOGICAL DOTYPE( NTYPES )
198* ..
199* .. External Functions ..
200 REAL SLARND
201 EXTERNAL slarnd
202* ..
203* .. External Subroutines ..
204 EXTERNAL alahdg, alareq, alasum, sglmts, slatb9, slatms
205* ..
206* .. Intrinsic Functions ..
207 INTRINSIC abs
208* ..
209* .. Executable Statements ..
210*
211* Initialize constants.
212*
213 path( 1: 3 ) = 'GLM'
214 info = 0
215 nrun = 0
216 nfail = 0
217 firstt = .true.
218 CALL alareq( path, nmats, dotype, ntypes, nin, nout )
219 lda = nmax
220 ldb = nmax
221 lwork = nmax*nmax
222*
223* Check for valid input values.
224*
225 DO 10 ik = 1, nn
226 m = mval( ik )
227 p = pval( ik )
228 n = nval( ik )
229 IF( m.GT.n .OR. n.GT.m+p ) THEN
230 IF( firstt ) THEN
231 WRITE( nout, fmt = * )
232 firstt = .false.
233 END IF
234 WRITE( nout, fmt = 9997 )m, p, n
235 END IF
236 10 CONTINUE
237 firstt = .true.
238*
239* Do for each value of M in MVAL.
240*
241 DO 40 ik = 1, nn
242 m = mval( ik )
243 p = pval( ik )
244 n = nval( ik )
245 IF( m.GT.n .OR. n.GT.m+p )
246 $ GO TO 40
247*
248 DO 30 imat = 1, ntypes
249*
250* Do the tests only if DOTYPE( IMAT ) is true.
251*
252 IF( .NOT.dotype( imat ) )
253 $ GO TO 30
254*
255* Set up parameters with SLATB9 and generate test
256* matrices A and B with SLATMS.
257*
258 CALL slatb9( path, imat, m, p, n, TYPE, KLA, KUA, KLB, KUB,
259 $ ANORM, BNORM, MODEA, MODEB, CNDNMA, CNDNMB,
260 $ DISTA, DISTB )
261*
262 CALL slatms( n, m, dista, iseed, TYPE, RWORK, MODEA, CNDNMA,
263 $ ANORM, KLA, KUA, 'No packing', A, LDA, WORK,
264 $ IINFO )
265 IF( iinfo.NE.0 ) THEN
266 WRITE( nout, fmt = 9999 )iinfo
267 info = abs( iinfo )
268 GO TO 30
269 END IF
270*
271 CALL slatms( n, p, distb, iseed, TYPE, RWORK, MODEB, CNDNMB,
272 $ BNORM, KLB, KUB, 'No packing', B, LDB, WORK,
273 $ IINFO )
274 IF( iinfo.NE.0 ) THEN
275 WRITE( nout, fmt = 9999 )iinfo
276 info = abs( iinfo )
277 GO TO 30
278 END IF
279*
280* Generate random left hand side vector of GLM
281*
282 DO 20 i = 1, n
283 x( i ) = slarnd( 2, iseed )
284 20 CONTINUE
285*
286 CALL sglmts( n, m, p, a, af, lda, b, bf, ldb, x,
287 $ x( nmax+1 ), x( 2*nmax+1 ), x( 3*nmax+1 ),
288 $ work, lwork, rwork, resid )
289*
290* Print information about the tests that did not
291* pass the threshold.
292*
293 IF( resid.GE.thresh ) THEN
294 IF( nfail.EQ.0 .AND. firstt ) THEN
295 firstt = .false.
296 CALL alahdg( nout, path )
297 END IF
298 WRITE( nout, fmt = 9998 )n, m, p, imat, 1, resid
299 nfail = nfail + 1
300 END IF
301 nrun = nrun + 1
302*
303 30 CONTINUE
304 40 CONTINUE
305*
306* Print a summary of the results.
307*
308 CALL alasum( path, nout, nfail, nrun, 0 )
309*
310 9999 FORMAT( ' SLATMS in SCKGLM INFO = ', i5 )
311 9998 FORMAT( ' N=', i4, ' M=', i4, ', P=', i4, ', type ', i2,
312 $ ', test ', i2, ', ratio=', g13.6 )
313 9997 FORMAT( ' *** Invalid input for GLM: M = ', i6, ', P = ', i6,
314 $ ', N = ', i6, ';', / ' must satisfy M <= N <= M+P ',
315 $ '(this set of values will be skipped)' )
316 RETURN
317*
318* End of SCKGLM
319*
alareq
subroutine alareq(path, nmats, dotype, ntypes, nin, nout)
ALAREQ
Definition alareq.f:90
alasum
subroutine alasum(type, nout, nfail, nrun, nerrs)
ALASUM
Definition alasum.f:73
alahdg
subroutine alahdg(iounit, path)
ALAHDG
Definition alahdg.f:62
sglmts
subroutine sglmts(n, m, p, a, af, lda, b, bf, ldb, d, df, x, u, work, lwork, rwork, result)
SGLMTS
Definition sglmts.f:149
slarnd
real function slarnd(idist, iseed)
SLARND
Definition slarnd.f:73
slatb9
subroutine slatb9(path, imat, m, p, n, type, kla, kua, klb, kub, anorm, bnorm, modea, modeb, cndnma, cndnmb, dista, distb)
SLATB9
Definition slatb9.f:170
slatms
subroutine slatms(m, n, dist, iseed, sym, d, mode, cond, dmax, kl, ku, pack, a, lda, work, info)
SLATMS
Definition slatms.f:321
Here is the call graph for this function:
Here is the caller graph for this function: