*> \brief \b SBLAT2
*
* =========== DOCUMENTATION ===========
*
* Online html documentation available at
*
http://www.netlib.org/lapack/explore-html/
*
* Definition:
* ===========
*
*
PROGRAM SBLAT2
*
*
*> \par Purpose:
* =============
*>
*> \verbatim
*>
*> Test
program for the
REAL Level 2 Blas.
*>
*> The
program must be driven by a short
data file. The first 18 records
*> of the
file are
read using list-directed input, the last 16 records
*> are
read using the
format ( A6, L2 ). An annotated example of a
data
*>
file can be obtained by deleting the first 3 characters from the
*> following 34 lines:
*>
'sblat2.out' NAME OF SUMMARY OUTPUT
FILE
*> 6
UNIT NUMBER OF SUMMARY
FILE
*>
'SBLAT2.SNAP' NAME OF SNAPSHOT OUTPUT
FILE
*> -1
UNIT NUMBER OF SNAPSHOT
FILE (NOT USED
IF .LT. 0)
*> F
LOGICAL FLAG, T
TO REWIND SNAPSHOT
FILE AFTER EACH RECORD.
*> F
LOGICAL FLAG, T
TO STOP ON FAILURES.
*> T
LOGICAL FLAG, T
TO TEST ERROR EXITS.
*> 16.0 THRESHOLD VALUE OF TEST RATIO
*> 6
NUMBER OF VALUES OF N
*> 0 1 2 3 5 9 VALUES OF N
*> 4
NUMBER OF VALUES OF K
*> 0 1 2 4 VALUES OF K
*> 4
NUMBER OF VALUES OF INCX AND INCY
*> 1 2 -1 -2 VALUES OF INCX AND INCY
*> 3
NUMBER OF VALUES OF ALPHA
*> 0.0 1.0 0.7 VALUES OF ALPHA
*> 3
NUMBER OF VALUES OF BETA
*> 0.0 1.0 0.9 VALUES OF BETA
*> SGEMV T PUT F FOR NO TEST. SAME COLUMNS.
*> SGBMV T PUT F FOR NO TEST. SAME COLUMNS.
*> SSYMV T PUT F FOR NO TEST. SAME COLUMNS.
*> SSBMV T PUT F FOR NO TEST. SAME COLUMNS.
*> SSPMV T PUT F FOR NO TEST. SAME COLUMNS.
*> STRMV T PUT F FOR NO TEST. SAME COLUMNS.
*> STBMV T PUT F FOR NO TEST. SAME COLUMNS.
*> STPMV T PUT F FOR NO TEST. SAME COLUMNS.
*> STRSV T PUT F FOR NO TEST. SAME COLUMNS.
*> STBSV T PUT F FOR NO TEST. SAME COLUMNS.
*> STPSV T PUT F FOR NO TEST. SAME COLUMNS.
*> SGER T PUT F FOR NO TEST. SAME COLUMNS.
*> SSYR T PUT F FOR NO TEST. SAME COLUMNS.
*> SSPR T PUT F FOR NO TEST. SAME COLUMNS.
*> SSYR2 T PUT F FOR NO TEST. SAME COLUMNS.
*> SSPR2 T PUT F FOR NO TEST. SAME COLUMNS.
*>
*> Further Details
*> ===============
*>
*> See:
*>
*> Dongarra J. J., Du Croz J. J., Hammarling S. and Hanson R. J..
*> An extended set of Fortran Basic Linear Algebra Subprograms.
*>
*> Technical Memoranda Nos. 41 (revision 3) and 81, Mathematics
*> and Computer Science Division, Argonne National Laboratory,
*> 9700 South Cass Avenue, Argonne, Illinois 60439, US.
*>
*> Or
*>
*> NAG Technical Reports TR3/87 and TR4/87, Numerical Algorithms
*> Group Ltd., NAG Central Office, 256 Banbury Road, Oxford
*> OX2 7DE, UK, and Numerical Algorithms Group Inc., 1101 31st
*> Street, Suite 100, Downers Grove, Illinois 60515-1263, USA.
*>
*>
*> -- Written on 10-August-1987.
*> Richard Hanson, Sandia National Labs.
*> Jeremy Du Croz, NAG Central Office.
*>
*> 10-9-00: Change
STATUS=
'NEW' to 'UNKNOWN' so that the testers
*> can be run multiple times without deleting generated
*> output files (susan)
*> \endverbatim
*
* Authors:
* ========
*
*> \author Univ. of Tennessee
*> \author Univ. of California Berkeley
*> \author Univ. of Colorado Denver
*> \author NAG Ltd.
*
*> \date April 2012
*
*> \ingroup single_blas_testing
*
* =====================================================================
PROGRAM SBLAT2
*
* -- Reference BLAS test routine (version 3.4.1) --
* -- Reference BLAS is a software package provided by Univ. of Tennessee, --
* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
* April 2012
*
* =====================================================================
*
* .. Parameters ..
INTEGER NIN
PARAMETER ( NIN = 5 )
INTEGER NSUBS
PARAMETER ( NSUBS = 16 )
REAL ZERO, ONE
PARAMETER ( ZERO = 0.0, ONE = 1.0 )
INTEGER NMAX, INCMAX
PARAMETER ( NMAX = 65, INCMAX = 2 )
INTEGER NINMAX, NIDMAX, NKBMAX, NALMAX, NBEMAX
PARAMETER ( NINMAX = 7, NIDMAX = 9, NKBMAX = 7,
$ NALMAX = 7, NBEMAX = 7 )
* .. Local Scalars ..
REAL EPS,
ERR, THRESH
INTEGER I, ISNUM, J, N, NALF, NBET, NIDIM, NINC, NKB,
$ NOUT, NTRA
LOGICAL FATAL, LTESTT, REWI, SAME, SFATAL, TRACE,
$ TSTERR
CHARACTER*1 TRANS
CHARACTER*6 SNAMET
CHARACTER*32 SNAPS, SUMMRY
* .. Local Arrays ..
REAL A( NMAX, NMAX ), AA( NMAX*NMAX ),
$ ALF( NALMAX ), AS( NMAX*NMAX ), BET( NBEMAX ),
$ G( NMAX ), X( NMAX ), XS( NMAX*INCMAX ),
$ XX( NMAX*INCMAX ), Y( NMAX ),
$ YS( NMAX*INCMAX ), YT( NMAX ),
$ YY( NMAX*INCMAX ), Z( 2*NMAX )
INTEGER IDIM( NIDMAX ), INC( NINMAX ), KB( NKBMAX )
LOGICAL LTEST( NSUBS )
CHARACTER*6 SNAMES( NSUBS )
* ..
External Functions ..
REAL SDIFF
LOGICAL LSE
EXTERNAL SDIFF, LSE
* ..
External Subroutines ..
EXTERNAL SCHK1, SCHK2, SCHK3, SCHK4, SCHK5, SCHK6,
$ SCHKE, SMVCH
* ..
Intrinsic Functions ..
INTRINSIC ABS, MAX, MIN
* .. Scalars
in Common ..
INTEGER INFOT, NOUTC
LOGICAL LERR, OK
CHARACTER*6 SRNAMT
* ..
Common blocks ..
COMMON /INFOC/INFOT, NOUTC, OK, LERR
COMMON /SRNAMC/SRNAMT
* ..
Data statements ..
DATA SNAMES/
'SGEMV ',
'SGBMV ',
'SSYMV ',
'SSBMV ',
$
'SSPMV ',
'STRMV ',
'STBMV ',
'STPMV ',
$
'STRSV ',
'STBSV ',
'STPSV ',
'SGER ',
$
'SSYR ',
'SSPR ',
'SSYR2 ',
'SSPR2 '/
* .. Executable Statements ..
*
*
Read name and
unit number for summary output
file and
open file.
*
READ( NIN,
FMT = * )SUMMRY
READ( NIN,
FMT = * )NOUT
OPEN( NOUT,
FILE = SUMMRY,
STATUS =
'UNKNOWN' )
NOUTC = NOUT
*
*
Read name and
unit number for snapshot output
file and
open file.
*
READ( NIN,
FMT = * )SNAPS
READ( NIN,
FMT = * )NTRA
TRACE = NTRA.GE.0
IF( TRACE )
THEN
OPEN( NTRA,
FILE = SNAPS,
STATUS =
'UNKNOWN' )
END IF
*
Read the flag that directs rewinding of the snapshot
file.
READ( NIN,
FMT = * )REWI
REWI = REWI.AND.TRACE
*
Read the flag that directs stopping on any failure.
READ( NIN,
FMT = * )SFATAL
*
Read the flag that indicates whether error exits are
to be tested.
READ( NIN,
FMT = * )TSTERR
*
Read the threshold value of the test ratio
READ( NIN,
FMT = * )THRESH
*
*
Read and check the
parameter values for the tests.
*
* Values of N
READ( NIN,
FMT = * )NIDIM
IF( NIDIM.LT.1.OR.NIDIM.GT.NIDMAX )
THEN
WRITE( NOUT,
FMT = 9997 )
'N', NIDMAX
GO TO 230
END IF
READ( NIN,
FMT = * )( IDIM( I ), I = 1, NIDIM )
DO 10 I = 1, NIDIM
IF( IDIM( I ).LT.0.OR.IDIM( I ).GT.NMAX )
THEN
WRITE( NOUT,
FMT = 9996 )NMAX
GO TO 230
END IF
10
CONTINUE
* Values of K
READ( NIN,
FMT = * )NKB
IF( NKB.LT.1.OR.NKB.GT.NKBMAX )
THEN
WRITE( NOUT,
FMT = 9997 )
'K', NKBMAX
GO TO 230
END IF
READ( NIN,
FMT = * )( KB( I ), I = 1, NKB )
DO 20 I = 1, NKB
IF( KB( I ).LT.0 )
THEN
WRITE( NOUT,
FMT = 9995 )
GO TO 230
END IF
20
CONTINUE
* Values of INCX and INCY
READ( NIN,
FMT = * )NINC
IF( NINC.LT.1.OR.NINC.GT.NINMAX )
THEN
WRITE( NOUT,
FMT = 9997 )
'INCX AND INCY', NINMAX
GO TO 230
END IF
READ( NIN,
FMT = * )( INC( I ), I = 1, NINC )
DO 30 I = 1, NINC
IF( INC( I ).EQ.0.OR.ABS( INC( I ) ).GT.INCMAX )
THEN
WRITE( NOUT,
FMT = 9994 )INCMAX
GO TO 230
END IF
30
CONTINUE
* Values of ALPHA
READ( NIN,
FMT = * )NALF
IF( NALF.LT.1.OR.NALF.GT.NALMAX )
THEN
WRITE( NOUT,
FMT = 9997 )
'ALPHA', NALMAX
GO TO 230
END IF
READ( NIN,
FMT = * )( ALF( I ), I = 1, NALF )
* Values of BETA
READ( NIN,
FMT = * )NBET
IF( NBET.LT.1.OR.NBET.GT.NBEMAX )
THEN
WRITE( NOUT,
FMT = 9997 )
'BETA', NBEMAX
GO TO 230
END IF
READ( NIN,
FMT = * )( BET( I ), I = 1, NBET )
*
* Report values of parameters.
*
WRITE( NOUT,
FMT = 9993 )
WRITE( NOUT,
FMT = 9992 )( IDIM( I ), I = 1, NIDIM )
WRITE( NOUT,
FMT = 9991 )( KB( I ), I = 1, NKB )
WRITE( NOUT,
FMT = 9990 )( INC( I ), I = 1, NINC )
WRITE( NOUT,
FMT = 9989 )( ALF( I ), I = 1, NALF )
WRITE( NOUT,
FMT = 9988 )( BET( I ), I = 1, NBET )
IF( .NOT.TSTERR )
THEN
WRITE( NOUT,
FMT = * )
WRITE( NOUT,
FMT = 9980 )
END IF
WRITE( NOUT,
FMT = * )
WRITE( NOUT,
FMT = 9999 )THRESH
WRITE( NOUT,
FMT = * )
*
*
Read names of subroutines and flags which indicate
* whether they are
to be tested.
*
DO 40 I = 1, NSUBS
LTEST( I ) = .
FALSE.
40
CONTINUE
50
READ( NIN,
FMT = 9984,
END = 80 )SNAMET, LTESTT
DO 60 I = 1, NSUBS
IF( SNAMET.EQ.SNAMES( I ) )
$
GO TO 70
60
CONTINUE
WRITE( NOUT,
FMT = 9986 )SNAMET
STOP
70 LTEST( I ) = LTESTT
GO TO 50
*
80
CONTINUE
CLOSE ( NIN )
*
* Compute EPS (the machine
precision).
*
EPS = EPSILON(ZERO)
WRITE( NOUT,
FMT = 9998 )EPS
*
* Check the reliability of SMVCH using exact
data.
*
N = MIN( 32, NMAX )
DO 120 J = 1, N
DO 110 I = 1, N
A( I, J ) = MAX( I - J + 1, 0 )
110
CONTINUE
X( J ) = J
Y( J ) = ZERO
120
CONTINUE
DO 130 J = 1, N
YY( J ) = J*( ( J + 1 )*J )/2 - ( ( J + 1 )*J*( J - 1 ) )/3
130
CONTINUE
* YY holds the exact result. On
exit from SMVCH YT holds
* the result computed by SMVCH.
TRANS =
'N'
CALL SMVCH( TRANS, N, N, ONE, A, NMAX, X, 1, ZERO, Y, 1, YT, G,
$ YY, EPS,
ERR, FATAL, NOUT, .
TRUE. )
SAME = LSE( YY, YT, N )
IF( .NOT.SAME.OR.
ERR.NE.ZERO )
THEN
WRITE( NOUT,
FMT = 9985 )TRANS, SAME,
ERR
STOP
END IF
TRANS =
'T'
CALL SMVCH( TRANS, N, N, ONE, A, NMAX, X, -1, ZERO, Y, -1, YT, G,
$ YY, EPS,
ERR, FATAL, NOUT, .
TRUE. )
SAME = LSE( YY, YT, N )
IF( .NOT.SAME.OR.
ERR.NE.ZERO )
THEN
WRITE( NOUT,
FMT = 9985 )TRANS, SAME,
ERR
STOP
END IF
*
* Test each
subroutine in turn.
*
DO 210 ISNUM = 1, NSUBS
WRITE( NOUT,
FMT = * )
IF( .NOT.LTEST( ISNUM ) )
THEN
* Subprogram is not
to be tested.
WRITE( NOUT,
FMT = 9983 )SNAMES( ISNUM )
ELSE
SRNAMT = SNAMES( ISNUM )
* Test error exits.
IF( TSTERR )
THEN
CALL SCHKE( ISNUM, SNAMES( ISNUM ), NOUT )
WRITE( NOUT,
FMT = * )
END IF
* Test computations.
INFOT = 0
OK = .
TRUE.
FATAL = .
FALSE.
GO TO ( 140, 140, 150, 150, 150, 160, 160,
$ 160, 160, 160, 160, 170, 180, 180,
$ 190, 190 )ISNUM
* Test SGEMV, 01, and SGBMV, 02.
140
CALL SCHK1( SNAMES( ISNUM ), EPS, THRESH, NOUT, NTRA, TRACE,
$ REWI, FATAL, NIDIM, IDIM, NKB, KB, NALF, ALF,
$ NBET, BET, NINC, INC, NMAX, INCMAX, A, AA, AS,
$ X, XX, XS, Y, YY, YS, YT, G )
GO TO 200
* Test SSYMV, 03, SSBMV, 04, and SSPMV, 05.
150
CALL SCHK2( SNAMES( ISNUM ), EPS, THRESH, NOUT, NTRA, TRACE,
$ REWI, FATAL, NIDIM, IDIM, NKB, KB, NALF, ALF,
$ NBET, BET, NINC, INC, NMAX, INCMAX, A, AA, AS,
$ X, XX, XS, Y, YY, YS, YT, G )
GO TO 200
* Test STRMV, 06, STBMV, 07, STPMV, 08,
* STRSV, 09, STBSV, 10, and STPSV, 11.
160
CALL SCHK3( SNAMES( ISNUM ), EPS, THRESH, NOUT, NTRA, TRACE,
$ REWI, FATAL, NIDIM, IDIM, NKB, KB, NINC, INC,
$ NMAX, INCMAX, A, AA, AS, Y, YY, YS, YT, G, Z )
GO TO 200
* Test SGER, 12.
170
CALL SCHK4( SNAMES( ISNUM ), EPS, THRESH, NOUT, NTRA, TRACE,
$ REWI, FATAL, NIDIM, IDIM, NALF, ALF, NINC, INC,
$ NMAX, INCMAX, A, AA, AS, X, XX, XS, Y, YY, YS,
$ YT, G, Z )
GO TO 200
* Test SSYR, 13, and SSPR, 14.
180
CALL SCHK5( SNAMES( ISNUM ), EPS, THRESH, NOUT, NTRA, TRACE,
$ REWI, FATAL, NIDIM, IDIM, NALF, ALF, NINC, INC,
$ NMAX, INCMAX, A, AA, AS, X, XX, XS, Y, YY, YS,
$ YT, G, Z )
GO TO 200
* Test SSYR2, 15, and SSPR2, 16.
190
CALL SCHK6( SNAMES( ISNUM ), EPS, THRESH, NOUT, NTRA, TRACE,
$ REWI, FATAL, NIDIM, IDIM, NALF, ALF, NINC, INC,
$ NMAX, INCMAX, A, AA, AS, X, XX, XS, Y, YY, YS,
$ YT, G, Z )
*
200
IF( FATAL.AND.SFATAL )
$
GO TO 220
END IF
210
CONTINUE
WRITE( NOUT,
FMT = 9982 )
GO TO 240
*
220
CONTINUE
WRITE( NOUT,
FMT = 9981 )
GO TO 240
*
230
CONTINUE
WRITE( NOUT,
FMT = 9987 )
*
240
CONTINUE
IF( TRACE )
$
CLOSE ( NTRA )
CLOSE ( NOUT )
STOP
*
9999
FORMAT(
' ROUTINES PASS COMPUTATIONAL TESTS IF TEST RATIO IS LES',
$
'S THAN', F8.2 )
9998
FORMAT(
' RELATIVE MACHINE PRECISION IS TAKEN TO BE', 1P, E9.1 )
9997
FORMAT(
' NUMBER OF VALUES OF ', A,
' IS LESS THAN 1 OR GREATER ',
$
'THAN ', I2 )
9996
FORMAT(
' VALUE OF N IS LESS THAN 0 OR GREATER THAN ', I2 )
9995
FORMAT(
' VALUE OF K IS LESS THAN 0' )
9994
FORMAT(
' ABSOLUTE VALUE OF INCX OR INCY IS 0 OR GREATER THAN ',
$ I2 )
9993
FORMAT(
' TESTS OF THE REAL LEVEL 2 BLAS', //
' THE F',
$
'OLLOWING PARAMETER VALUES WILL BE USED:' )
9992
FORMAT(
' FOR N ', 9I6 )
9991
FORMAT(
' FOR K ', 7I6 )
9990
FORMAT(
' FOR INCX AND INCY ', 7I6 )
9989
FORMAT(
' FOR ALPHA ', 7F6.1 )
9988
FORMAT(
' FOR BETA ', 7F6.1 )
9987
FORMAT(
' AMEND DATA FILE OR INCREASE ARRAY SIZES IN PROGRAM',
$ /
' ******* TESTS ABANDONED *******' )
9986
FORMAT(
' SUBPROGRAM NAME ', A6,
' NOT RECOGNIZED', /
' ******* T',
$
'ESTS ABANDONED *******' )
9985
FORMAT(
' ERROR IN SMVCH - IN-LINE DOT PRODUCTS ARE BEING EVALU',
$
'ATED WRONGLY.', /
' SMVCH WAS CALLED WITH TRANS = ', A1,
$
' AND RETURNED SAME = ', L1,
' AND ERR = ', F12.3,
'.', /
$
' THIS MAY BE DUE TO FAULTS IN THE ARITHMETIC OR THE COMPILER.'
$ , /
' ******* TESTS ABANDONED *******' )
9984
FORMAT( A6, L2 )
9983
FORMAT( 1X, A6,
' WAS NOT TESTED' )
9982
FORMAT( /
' END OF TESTS' )
9981
FORMAT( /
' ******* FATAL ERROR - TESTS ABANDONED *******' )
9980
FORMAT(
' ERROR-EXITS WILL NOT BE TESTED' )
*
*
End of SBLAT2.
*
END
SUBROUTINE SCHK1( SNAME, EPS, THRESH, NOUT, NTRA, TRACE, REWI,
$ FATAL, NIDIM, IDIM, NKB, KB, NALF, ALF, NBET,
$ BET, NINC, INC, NMAX, INCMAX, A, AA, AS, X, XX,
$ XS, Y, YY, YS, YT, G )
*
* Tests SGEMV and SGBMV.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Parameters ..
REAL ZERO, HALF
PARAMETER ( ZERO = 0.0, HALF = 0.5 )
* .. Scalar Arguments ..
REAL EPS, THRESH
INTEGER INCMAX, NALF, NBET, NIDIM, NINC, NKB, NMAX,
$ NOUT, NTRA
LOGICAL FATAL, REWI, TRACE
CHARACTER*6 SNAME
* .. Array Arguments ..
REAL A( NMAX, NMAX ), AA( NMAX*NMAX ), ALF( NALF ),
$ AS( NMAX*NMAX ), BET( NBET ), G( NMAX ),
$ X( NMAX ), XS( NMAX*INCMAX ),
$ XX( NMAX*INCMAX ), Y( NMAX ),
$ YS( NMAX*INCMAX ), YT( NMAX ),
$ YY( NMAX*INCMAX )
INTEGER IDIM( NIDIM ), INC( NINC ), KB( NKB )
* .. Local Scalars ..
REAL ALPHA, ALS, BETA, BLS,
ERR, ERRMAX, TRANSL
INTEGER I, IA, IB, IC, IKU, IM,
IN, INCX, INCXS, INCY,
$ INCYS, IX, IY, KL, KLS, KU, KUS, LAA, LDA,
$ LDAS, LX, LY, M, ML, MS, N, NARGS, NC, ND, NK,
$ NL, NS
LOGICAL BANDED, FULL,
NULL, RESET, SAME, TRAN
CHARACTER*1 TRANS, TRANSS
CHARACTER*3 ICH
* .. Local Arrays ..
LOGICAL ISAME( 13 )
* ..
External Functions ..
LOGICAL LSE, LSERES
EXTERNAL LSE, LSERES
* ..
External Subroutines ..
EXTERNAL SGBMV, SGEMV, SMAKE, SMVCH
* ..
Intrinsic Functions ..
INTRINSIC ABS, MAX, MIN
* .. Scalars
in Common ..
INTEGER INFOT, NOUTC
LOGICAL LERR, OK
* ..
Common blocks ..
COMMON /INFOC/INFOT, NOUTC, OK, LERR
* ..
Data statements ..
DATA ICH/
'NTC'/
* .. Executable Statements ..
FULL = SNAME( 3: 3 ).EQ.
'E'
BANDED = SNAME( 3: 3 ).EQ.
'B'
* Define the
number of arguments.
IF( FULL )
THEN
NARGS = 11
ELSE IF( BANDED )
THEN
NARGS = 13
END IF
*
NC = 0
RESET = .
TRUE.
ERRMAX = ZERO
*
DO 120
IN = 1, NIDIM
N = IDIM(
IN )
ND = N/2 + 1
*
DO 110 IM = 1, 2
IF( IM.EQ.1 )
$ M = MAX( N - ND, 0 )
IF( IM.EQ.2 )
$ M = MIN( N + ND, NMAX )
*
IF( BANDED )
THEN
NK = NKB
ELSE
NK = 1
END IF
DO 100 IKU = 1, NK
IF( BANDED )
THEN
KU = KB( IKU )
KL = MAX( KU - 1, 0 )
ELSE
KU = N - 1
KL = M - 1
END IF
* Set LDA
to 1 more than minimum value
if room.
IF( BANDED )
THEN
LDA = KL + KU + 1
ELSE
LDA = M
END IF
IF( LDA.LT.NMAX )
$ LDA = LDA + 1
* Skip tests
if not enough room.
IF( LDA.GT.NMAX )
$
GO TO 100
LAA = LDA*N
NULL = N.LE.0.OR.M.LE.0
*
* Generate the matrix A.
*
TRANSL = ZERO
CALL SMAKE( SNAME( 2: 3 ),
' ',
' ', M, N, A, NMAX, AA,
$ LDA, KL, KU, RESET, TRANSL )
*
DO 90 IC = 1, 3
TRANS = ICH( IC: IC )
TRAN = TRANS.EQ.
'T'.OR.TRANS.EQ.
'C'
*
IF( TRAN )
THEN
ML = N
NL = M
ELSE
ML = M
NL = N
END IF
*
DO 80 IX = 1, NINC
INCX = INC( IX )
LX = ABS( INCX )*NL
*
* Generate the vector X.
*
TRANSL = HALF
CALL SMAKE(
'GE',
' ',
' ', 1, NL, X, 1, XX,
$ ABS( INCX ), 0, NL - 1, RESET, TRANSL )
IF( NL.GT.1 )
THEN
X( NL/2 ) = ZERO
XX( 1 + ABS( INCX )*( NL/2 - 1 ) ) = ZERO
END IF
*
DO 70 IY = 1, NINC
INCY = INC( IY )
LY = ABS( INCY )*ML
*
DO 60 IA = 1, NALF
ALPHA = ALF( IA )
*
DO 50 IB = 1, NBET
BETA = BET( IB )
*
* Generate the vector Y.
*
TRANSL = ZERO
CALL SMAKE(
'GE',
' ',
' ', 1, ML, Y, 1,
$ YY, ABS( INCY ), 0, ML - 1,
$ RESET, TRANSL )
*
NC = NC + 1
*
*
Save every datum before calling the
*
subroutine.
*
TRANSS = TRANS
MS = M
NS = N
KLS = KL
KUS = KU
ALS = ALPHA
DO 10 I = 1, LAA
AS( I ) = AA( I )
10
CONTINUE
LDAS = LDA
DO 20 I = 1, LX
XS( I ) = XX( I )
20
CONTINUE
INCXS = INCX
BLS = BETA
DO 30 I = 1, LY
YS( I ) = YY( I )
30
CONTINUE
INCYS = INCY
*
*
Call the
subroutine.
*
IF( FULL )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9994 )NC, SNAME,
$ TRANS, M, N, ALPHA, LDA, INCX, BETA,
$ INCY
IF( REWI )
$
REWIND NTRA
CALL SGEMV( TRANS, M, N, ALPHA, AA,
$ LDA, XX, INCX, BETA, YY,
$ INCY )
ELSE IF( BANDED )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9995 )NC, SNAME,
$ TRANS, M, N, KL, KU, ALPHA, LDA,
$ INCX, BETA, INCY
IF( REWI )
$
REWIND NTRA
CALL SGBMV( TRANS, M, N, KL, KU, ALPHA,
$ AA, LDA, XX, INCX, BETA,
$ YY, INCY )
END IF
*
* Check
if error-exit was taken incorrectly.
*
IF( .NOT.OK )
THEN
WRITE( NOUT,
FMT = 9993 )
FATAL = .
TRUE.
GO TO 130
END IF
*
* See what
data changed inside subroutines.
*
ISAME( 1 ) = TRANS.EQ.TRANSS
ISAME( 2 ) = MS.EQ.M
ISAME( 3 ) = NS.EQ.N
IF( FULL )
THEN
ISAME( 4 ) = ALS.EQ.ALPHA
ISAME( 5 ) = LSE( AS, AA, LAA )
ISAME( 6 ) = LDAS.EQ.LDA
ISAME( 7 ) = LSE( XS, XX, LX )
ISAME( 8 ) = INCXS.EQ.INCX
ISAME( 9 ) = BLS.EQ.BETA
IF(
NULL )
THEN
ISAME( 10 ) = LSE( YS, YY, LY )
ELSE
ISAME( 10 ) = LSERES(
'GE',
' ', 1,
$ ML, YS, YY,
$ ABS( INCY ) )
END IF
ISAME( 11 ) = INCYS.EQ.INCY
ELSE IF( BANDED )
THEN
ISAME( 4 ) = KLS.EQ.KL
ISAME( 5 ) = KUS.EQ.KU
ISAME( 6 ) = ALS.EQ.ALPHA
ISAME( 7 ) = LSE( AS, AA, LAA )
ISAME( 8 ) = LDAS.EQ.LDA
ISAME( 9 ) = LSE( XS, XX, LX )
ISAME( 10 ) = INCXS.EQ.INCX
ISAME( 11 ) = BLS.EQ.BETA
IF(
NULL )
THEN
ISAME( 12 ) = LSE( YS, YY, LY )
ELSE
ISAME( 12 ) = LSERES(
'GE',
' ', 1,
$ ML, YS, YY,
$ ABS( INCY ) )
END IF
ISAME( 13 ) = INCYS.EQ.INCY
END IF
*
*
If data was incorrectly changed, report
* and
return.
*
SAME = .
TRUE.
DO 40 I = 1, NARGS
SAME = SAME.AND.ISAME( I )
IF( .NOT.ISAME( I ) )
$
WRITE( NOUT,
FMT = 9998 )I
40
CONTINUE
IF( .NOT.SAME )
THEN
FATAL = .
TRUE.
GO TO 130
END IF
*
IF( .NOT.
NULL )
THEN
*
* Check the result.
*
CALL SMVCH( TRANS, M, N, ALPHA, A,
$ NMAX, X, INCX, BETA, Y,
$ INCY, YT, G, YY, EPS,
ERR,
$ FATAL, NOUT, .
TRUE. )
ERRMAX = MAX( ERRMAX,
ERR )
*
If got really bad answer, report and
*
return.
IF( FATAL )
$
GO TO 130
ELSE
* Avoid repeating tests with M.le.0 or
* N.le.0.
GO TO 110
END IF
*
50
CONTINUE
*
60
CONTINUE
*
70
CONTINUE
*
80
CONTINUE
*
90
CONTINUE
*
100
CONTINUE
*
110
CONTINUE
*
120
CONTINUE
*
* Report result.
*
IF( ERRMAX.LT.THRESH )
THEN
WRITE( NOUT,
FMT = 9999 )SNAME, NC
ELSE
WRITE( NOUT,
FMT = 9997 )SNAME, NC, ERRMAX
END IF
GO TO 140
*
130
CONTINUE
WRITE( NOUT,
FMT = 9996 )SNAME
IF( FULL )
THEN
WRITE( NOUT,
FMT = 9994 )NC, SNAME, TRANS, M, N, ALPHA, LDA,
$ INCX, BETA, INCY
ELSE IF( BANDED )
THEN
WRITE( NOUT,
FMT = 9995 )NC, SNAME, TRANS, M, N, KL, KU,
$ ALPHA, LDA, INCX, BETA, INCY
END IF
*
140
CONTINUE
RETURN
*
9999
FORMAT(
' ', A6,
' PASSED THE COMPUTATIONAL TESTS (', I6,
' CALL',
$
'S)' )
9998
FORMAT(
' ******* FATAL ERROR - PARAMETER NUMBER ', I2,
' WAS CH',
$
'ANGED INCORRECTLY *******' )
9997
FORMAT(
' ', A6,
' COMPLETED THE COMPUTATIONAL TESTS (', I6,
' C',
$
'ALLS)', /
' ******* BUT WITH MAXIMUM TEST RATIO', F8.2,
$
' - SUSPECT *******' )
9996
FORMAT(
' ******* ', A6,
' FAILED ON CALL NUMBER:' )
9995
FORMAT( 1X, I6,
': ', A6,
'(''', A1,
''',', 4( I3,
',' ), F4.1,
$
', A,', I3,
', X,', I2,
',', F4.1,
', Y,', I2,
') .' )
9994
FORMAT( 1X, I6,
': ', A6,
'(''', A1,
''',', 2( I3,
',' ), F4.1,
$
', A,', I3,
', X,', I2,
',', F4.1,
', Y,', I2,
$
') .' )
9993
FORMAT(
' ******* FATAL ERROR - ERROR-EXIT TAKEN ON VALID CALL *',
$
'******' )
*
*
End of SCHK1.
*
END
SUBROUTINE SCHK2( SNAME, EPS, THRESH, NOUT, NTRA, TRACE, REWI,
$ FATAL, NIDIM, IDIM, NKB, KB, NALF, ALF, NBET,
$ BET, NINC, INC, NMAX, INCMAX, A, AA, AS, X, XX,
$ XS, Y, YY, YS, YT, G )
*
* Tests SSYMV, SSBMV and SSPMV.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Parameters ..
REAL ZERO, HALF
PARAMETER ( ZERO = 0.0, HALF = 0.5 )
* .. Scalar Arguments ..
REAL EPS, THRESH
INTEGER INCMAX, NALF, NBET, NIDIM, NINC, NKB, NMAX,
$ NOUT, NTRA
LOGICAL FATAL, REWI, TRACE
CHARACTER*6 SNAME
* .. Array Arguments ..
REAL A( NMAX, NMAX ), AA( NMAX*NMAX ), ALF( NALF ),
$ AS( NMAX*NMAX ), BET( NBET ), G( NMAX ),
$ X( NMAX ), XS( NMAX*INCMAX ),
$ XX( NMAX*INCMAX ), Y( NMAX ),
$ YS( NMAX*INCMAX ), YT( NMAX ),
$ YY( NMAX*INCMAX )
INTEGER IDIM( NIDIM ), INC( NINC ), KB( NKB )
* .. Local Scalars ..
REAL ALPHA, ALS, BETA, BLS,
ERR, ERRMAX, TRANSL
INTEGER I, IA, IB, IC, IK,
IN, INCX, INCXS, INCY,
$ INCYS, IX, IY, K, KS, LAA, LDA, LDAS, LX, LY,
$ N, NARGS, NC, NK, NS
LOGICAL BANDED, FULL,
NULL, PACKED, RESET, SAME
CHARACTER*1 UPLO, UPLOS
CHARACTER*2 ICH
* .. Local Arrays ..
LOGICAL ISAME( 13 )
* ..
External Functions ..
LOGICAL LSE, LSERES
EXTERNAL LSE, LSERES
* ..
External Subroutines ..
EXTERNAL SMAKE, SMVCH, SSBMV, SSPMV, SSYMV
* ..
Intrinsic Functions ..
INTRINSIC ABS, MAX
* .. Scalars
in Common ..
INTEGER INFOT, NOUTC
LOGICAL LERR, OK
* ..
Common blocks ..
COMMON /INFOC/INFOT, NOUTC, OK, LERR
* ..
Data statements ..
DATA ICH/
'UL'/
* .. Executable Statements ..
FULL = SNAME( 3: 3 ).EQ.
'Y'
BANDED = SNAME( 3: 3 ).EQ.
'B'
PACKED = SNAME( 3: 3 ).EQ.
'P'
* Define the
number of arguments.
IF( FULL )
THEN
NARGS = 10
ELSE IF( BANDED )
THEN
NARGS = 11
ELSE IF( PACKED )
THEN
NARGS = 9
END IF
*
NC = 0
RESET = .
TRUE.
ERRMAX = ZERO
*
DO 110
IN = 1, NIDIM
N = IDIM(
IN )
*
IF( BANDED )
THEN
NK = NKB
ELSE
NK = 1
END IF
DO 100 IK = 1, NK
IF( BANDED )
THEN
K = KB( IK )
ELSE
K = N - 1
END IF
* Set LDA
to 1 more than minimum value
if room.
IF( BANDED )
THEN
LDA = K + 1
ELSE
LDA = N
END IF
IF( LDA.LT.NMAX )
$ LDA = LDA + 1
* Skip tests
if not enough room.
IF( LDA.GT.NMAX )
$
GO TO 100
IF( PACKED )
THEN
LAA = ( N*( N + 1 ) )/2
ELSE
LAA = LDA*N
END IF
NULL = N.LE.0
*
DO 90 IC = 1, 2
UPLO = ICH( IC: IC )
*
* Generate the matrix A.
*
TRANSL = ZERO
CALL SMAKE( SNAME( 2: 3 ), UPLO,
' ', N, N, A, NMAX, AA,
$ LDA, K, K, RESET, TRANSL )
*
DO 80 IX = 1, NINC
INCX = INC( IX )
LX = ABS( INCX )*N
*
* Generate the vector X.
*
TRANSL = HALF
CALL SMAKE(
'GE',
' ',
' ', 1, N, X, 1, XX,
$ ABS( INCX ), 0, N - 1, RESET, TRANSL )
IF( N.GT.1 )
THEN
X( N/2 ) = ZERO
XX( 1 + ABS( INCX )*( N/2 - 1 ) ) = ZERO
END IF
*
DO 70 IY = 1, NINC
INCY = INC( IY )
LY = ABS( INCY )*N
*
DO 60 IA = 1, NALF
ALPHA = ALF( IA )
*
DO 50 IB = 1, NBET
BETA = BET( IB )
*
* Generate the vector Y.
*
TRANSL = ZERO
CALL SMAKE(
'GE',
' ',
' ', 1, N, Y, 1, YY,
$ ABS( INCY ), 0, N - 1, RESET,
$ TRANSL )
*
NC = NC + 1
*
*
Save every datum before calling the
*
subroutine.
*
UPLOS = UPLO
NS = N
KS = K
ALS = ALPHA
DO 10 I = 1, LAA
AS( I ) = AA( I )
10
CONTINUE
LDAS = LDA
DO 20 I = 1, LX
XS( I ) = XX( I )
20
CONTINUE
INCXS = INCX
BLS = BETA
DO 30 I = 1, LY
YS( I ) = YY( I )
30
CONTINUE
INCYS = INCY
*
*
Call the
subroutine.
*
IF( FULL )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9993 )NC, SNAME,
$ UPLO, N, ALPHA, LDA, INCX, BETA, INCY
IF( REWI )
$
REWIND NTRA
CALL SSYMV( UPLO, N, ALPHA, AA, LDA, XX,
$ INCX, BETA, YY, INCY )
ELSE IF( BANDED )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9994 )NC, SNAME,
$ UPLO, N, K, ALPHA, LDA, INCX, BETA,
$ INCY
IF( REWI )
$
REWIND NTRA
CALL SSBMV( UPLO, N, K, ALPHA, AA, LDA,
$ XX, INCX, BETA, YY, INCY )
ELSE IF( PACKED )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9995 )NC, SNAME,
$ UPLO, N, ALPHA, INCX, BETA, INCY
IF( REWI )
$
REWIND NTRA
CALL SSPMV( UPLO, N, ALPHA, AA, XX, INCX,
$ BETA, YY, INCY )
END IF
*
* Check
if error-exit was taken incorrectly.
*
IF( .NOT.OK )
THEN
WRITE( NOUT,
FMT = 9992 )
FATAL = .
TRUE.
GO TO 120
END IF
*
* See what
data changed inside subroutines.
*
ISAME( 1 ) = UPLO.EQ.UPLOS
ISAME( 2 ) = NS.EQ.N
IF( FULL )
THEN
ISAME( 3 ) = ALS.EQ.ALPHA
ISAME( 4 ) = LSE( AS, AA, LAA )
ISAME( 5 ) = LDAS.EQ.LDA
ISAME( 6 ) = LSE( XS, XX, LX )
ISAME( 7 ) = INCXS.EQ.INCX
ISAME( 8 ) = BLS.EQ.BETA
IF(
NULL )
THEN
ISAME( 9 ) = LSE( YS, YY, LY )
ELSE
ISAME( 9 ) = LSERES(
'GE',
' ', 1, N,
$ YS, YY, ABS( INCY ) )
END IF
ISAME( 10 ) = INCYS.EQ.INCY
ELSE IF( BANDED )
THEN
ISAME( 3 ) = KS.EQ.K
ISAME( 4 ) = ALS.EQ.ALPHA
ISAME( 5 ) = LSE( AS, AA, LAA )
ISAME( 6 ) = LDAS.EQ.LDA
ISAME( 7 ) = LSE( XS, XX, LX )
ISAME( 8 ) = INCXS.EQ.INCX
ISAME( 9 ) = BLS.EQ.BETA
IF(
NULL )
THEN
ISAME( 10 ) = LSE( YS, YY, LY )
ELSE
ISAME( 10 ) = LSERES(
'GE',
' ', 1, N,
$ YS, YY, ABS( INCY ) )
END IF
ISAME( 11 ) = INCYS.EQ.INCY
ELSE IF( PACKED )
THEN
ISAME( 3 ) = ALS.EQ.ALPHA
ISAME( 4 ) = LSE( AS, AA, LAA )
ISAME( 5 ) = LSE( XS, XX, LX )
ISAME( 6 ) = INCXS.EQ.INCX
ISAME( 7 ) = BLS.EQ.BETA
IF(
NULL )
THEN
ISAME( 8 ) = LSE( YS, YY, LY )
ELSE
ISAME( 8 ) = LSERES(
'GE',
' ', 1, N,
$ YS, YY, ABS( INCY ) )
END IF
ISAME( 9 ) = INCYS.EQ.INCY
END IF
*
*
If data was incorrectly changed, report and
*
return.
*
SAME = .
TRUE.
DO 40 I = 1, NARGS
SAME = SAME.AND.ISAME( I )
IF( .NOT.ISAME( I ) )
$
WRITE( NOUT,
FMT = 9998 )I
40
CONTINUE
IF( .NOT.SAME )
THEN
FATAL = .
TRUE.
GO TO 120
END IF
*
IF( .NOT.
NULL )
THEN
*
* Check the result.
*
CALL SMVCH(
'N', N, N, ALPHA, A, NMAX, X,
$ INCX, BETA, Y, INCY, YT, G,
$ YY, EPS,
ERR, FATAL, NOUT,
$ .
TRUE. )
ERRMAX = MAX( ERRMAX,
ERR )
*
If got really bad answer, report and
*
return.
IF( FATAL )
$
GO TO 120
ELSE
* Avoid repeating tests with N.le.0
GO TO 110
END IF
*
50
CONTINUE
*
60
CONTINUE
*
70
CONTINUE
*
80
CONTINUE
*
90
CONTINUE
*
100
CONTINUE
*
110
CONTINUE
*
* Report result.
*
IF( ERRMAX.LT.THRESH )
THEN
WRITE( NOUT,
FMT = 9999 )SNAME, NC
ELSE
WRITE( NOUT,
FMT = 9997 )SNAME, NC, ERRMAX
END IF
GO TO 130
*
120
CONTINUE
WRITE( NOUT,
FMT = 9996 )SNAME
IF( FULL )
THEN
WRITE( NOUT,
FMT = 9993 )NC, SNAME, UPLO, N, ALPHA, LDA, INCX,
$ BETA, INCY
ELSE IF( BANDED )
THEN
WRITE( NOUT,
FMT = 9994 )NC, SNAME, UPLO, N, K, ALPHA, LDA,
$ INCX, BETA, INCY
ELSE IF( PACKED )
THEN
WRITE( NOUT,
FMT = 9995 )NC, SNAME, UPLO, N, ALPHA, INCX,
$ BETA, INCY
END IF
*
130
CONTINUE
RETURN
*
9999
FORMAT(
' ', A6,
' PASSED THE COMPUTATIONAL TESTS (', I6,
' CALL',
$
'S)' )
9998
FORMAT(
' ******* FATAL ERROR - PARAMETER NUMBER ', I2,
' WAS CH',
$
'ANGED INCORRECTLY *******' )
9997
FORMAT(
' ', A6,
' COMPLETED THE COMPUTATIONAL TESTS (', I6,
' C',
$
'ALLS)', /
' ******* BUT WITH MAXIMUM TEST RATIO', F8.2,
$
' - SUSPECT *******' )
9996
FORMAT(
' ******* ', A6,
' FAILED ON CALL NUMBER:' )
9995
FORMAT( 1X, I6,
': ', A6,
'(''', A1,
''',', I3,
',', F4.1,
', AP',
$
', X,', I2,
',', F4.1,
', Y,', I2,
') .' )
9994
FORMAT( 1X, I6,
': ', A6,
'(''', A1,
''',', 2( I3,
',' ), F4.1,
$
', A,', I3,
', X,', I2,
',', F4.1,
', Y,', I2,
$
') .' )
9993
FORMAT( 1X, I6,
': ', A6,
'(''', A1,
''',', I3,
',', F4.1,
', A,',
$ I3,
', X,', I2,
',', F4.1,
', Y,', I2,
') .' )
9992
FORMAT(
' ******* FATAL ERROR - ERROR-EXIT TAKEN ON VALID CALL *',
$
'******' )
*
*
End of SCHK2.
*
END
SUBROUTINE SCHK3( SNAME, EPS, THRESH, NOUT, NTRA, TRACE, REWI,
$ FATAL, NIDIM, IDIM, NKB, KB, NINC, INC, NMAX,
$ INCMAX, A, AA, AS, X, XX, XS, XT, G, Z )
*
* Tests STRMV, STBMV, STPMV, STRSV, STBSV and STPSV.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Parameters ..
REAL ZERO, HALF, ONE
PARAMETER ( ZERO = 0.0, HALF = 0.5, ONE = 1.0 )
* .. Scalar Arguments ..
REAL EPS, THRESH
INTEGER INCMAX, NIDIM, NINC, NKB, NMAX, NOUT, NTRA
LOGICAL FATAL, REWI, TRACE
CHARACTER*6 SNAME
* .. Array Arguments ..
REAL A( NMAX, NMAX ), AA( NMAX*NMAX ),
$ AS( NMAX*NMAX ), G( NMAX ), X( NMAX ),
$ XS( NMAX*INCMAX ), XT( NMAX ),
$ XX( NMAX*INCMAX ), Z( NMAX )
INTEGER IDIM( NIDIM ), INC( NINC ), KB( NKB )
* .. Local Scalars ..
REAL ERR, ERRMAX, TRANSL
INTEGER I, ICD, ICT, ICU, IK,
IN, INCX, INCXS, IX, K,
$ KS, LAA, LDA, LDAS, LX, N, NARGS, NC, NK, NS
LOGICAL BANDED, FULL,
NULL, PACKED, RESET, SAME
CHARACTER*1 DIAG, DIAGS, TRANS, TRANSS, UPLO, UPLOS
CHARACTER*2 ICHD, ICHU
CHARACTER*3 ICHT
* .. Local Arrays ..
LOGICAL ISAME( 13 )
* ..
External Functions ..
LOGICAL LSE, LSERES
EXTERNAL LSE, LSERES
* ..
External Subroutines ..
EXTERNAL SMAKE, SMVCH, STBMV, STBSV, STPMV, STPSV,
$ STRMV, STRSV
* ..
Intrinsic Functions ..
INTRINSIC ABS, MAX
* .. Scalars
in Common ..
INTEGER INFOT, NOUTC
LOGICAL LERR, OK
* ..
Common blocks ..
COMMON /INFOC/INFOT, NOUTC, OK, LERR
* ..
Data statements ..
DATA ICHU/
'UL'/, ICHT/
'NTC'/, ICHD/
'UN'/
* .. Executable Statements ..
FULL = SNAME( 3: 3 ).EQ.
'R'
BANDED = SNAME( 3: 3 ).EQ.
'B'
PACKED = SNAME( 3: 3 ).EQ.
'P'
* Define the
number of arguments.
IF( FULL )
THEN
NARGS = 8
ELSE IF( BANDED )
THEN
NARGS = 9
ELSE IF( PACKED )
THEN
NARGS = 7
END IF
*
NC = 0
RESET = .
TRUE.
ERRMAX = ZERO
* Set up zero vector for SMVCH.
DO 10 I = 1, NMAX
Z( I ) = ZERO
10
CONTINUE
*
DO 110
IN = 1, NIDIM
N = IDIM(
IN )
*
IF( BANDED )
THEN
NK = NKB
ELSE
NK = 1
END IF
DO 100 IK = 1, NK
IF( BANDED )
THEN
K = KB( IK )
ELSE
K = N - 1
END IF
* Set LDA
to 1 more than minimum value
if room.
IF( BANDED )
THEN
LDA = K + 1
ELSE
LDA = N
END IF
IF( LDA.LT.NMAX )
$ LDA = LDA + 1
* Skip tests
if not enough room.
IF( LDA.GT.NMAX )
$
GO TO 100
IF( PACKED )
THEN
LAA = ( N*( N + 1 ) )/2
ELSE
LAA = LDA*N
END IF
NULL = N.LE.0
*
DO 90 ICU = 1, 2
UPLO = ICHU( ICU: ICU )
*
DO 80 ICT = 1, 3
TRANS = ICHT( ICT: ICT )
*
DO 70 ICD = 1, 2
DIAG = ICHD( ICD: ICD )
*
* Generate the matrix A.
*
TRANSL = ZERO
CALL SMAKE( SNAME( 2: 3 ), UPLO, DIAG, N, N, A,
$ NMAX, AA, LDA, K, K, RESET, TRANSL )
*
DO 60 IX = 1, NINC
INCX = INC( IX )
LX = ABS( INCX )*N
*
* Generate the vector X.
*
TRANSL = HALF
CALL SMAKE(
'GE',
' ',
' ', 1, N, X, 1, XX,
$ ABS( INCX ), 0, N - 1, RESET,
$ TRANSL )
IF( N.GT.1 )
THEN
X( N/2 ) = ZERO
XX( 1 + ABS( INCX )*( N/2 - 1 ) ) = ZERO
END IF
*
NC = NC + 1
*
*
Save every datum before calling the
subroutine.
*
UPLOS = UPLO
TRANSS = TRANS
DIAGS = DIAG
NS = N
KS = K
DO 20 I = 1, LAA
AS( I ) = AA( I )
20
CONTINUE
LDAS = LDA
DO 30 I = 1, LX
XS( I ) = XX( I )
30
CONTINUE
INCXS = INCX
*
*
Call the
subroutine.
*
IF( SNAME( 4: 5 ).EQ.
'MV' )
THEN
IF( FULL )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9993 )NC, SNAME,
$ UPLO, TRANS, DIAG, N, LDA, INCX
IF( REWI )
$
REWIND NTRA
CALL STRMV( UPLO, TRANS, DIAG, N, AA, LDA,
$ XX, INCX )
ELSE IF( BANDED )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9994 )NC, SNAME,
$ UPLO, TRANS, DIAG, N, K, LDA, INCX
IF( REWI )
$
REWIND NTRA
CALL STBMV( UPLO, TRANS, DIAG, N, K, AA,
$ LDA, XX, INCX )
ELSE IF( PACKED )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9995 )NC, SNAME,
$ UPLO, TRANS, DIAG, N, INCX
IF( REWI )
$
REWIND NTRA
CALL STPMV( UPLO, TRANS, DIAG, N, AA, XX,
$ INCX )
END IF
ELSE IF( SNAME( 4: 5 ).EQ.
'SV' )
THEN
IF( FULL )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9993 )NC, SNAME,
$ UPLO, TRANS, DIAG, N, LDA, INCX
IF( REWI )
$
REWIND NTRA
CALL STRSV( UPLO, TRANS, DIAG, N, AA, LDA,
$ XX, INCX )
ELSE IF( BANDED )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9994 )NC, SNAME,
$ UPLO, TRANS, DIAG, N, K, LDA, INCX
IF( REWI )
$
REWIND NTRA
CALL STBSV( UPLO, TRANS, DIAG, N, K, AA,
$ LDA, XX, INCX )
ELSE IF( PACKED )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9995 )NC, SNAME,
$ UPLO, TRANS, DIAG, N, INCX
IF( REWI )
$
REWIND NTRA
CALL STPSV( UPLO, TRANS, DIAG, N, AA, XX,
$ INCX )
END IF
END IF
*
* Check
if error-exit was taken incorrectly.
*
IF( .NOT.OK )
THEN
WRITE( NOUT,
FMT = 9992 )
FATAL = .
TRUE.
GO TO 120
END IF
*
* See what
data changed inside subroutines.
*
ISAME( 1 ) = UPLO.EQ.UPLOS
ISAME( 2 ) = TRANS.EQ.TRANSS
ISAME( 3 ) = DIAG.EQ.DIAGS
ISAME( 4 ) = NS.EQ.N
IF( FULL )
THEN
ISAME( 5 ) = LSE( AS, AA, LAA )
ISAME( 6 ) = LDAS.EQ.LDA
IF(
NULL )
THEN
ISAME( 7 ) = LSE( XS, XX, LX )
ELSE
ISAME( 7 ) = LSERES(
'GE',
' ', 1, N, XS,
$ XX, ABS( INCX ) )
END IF
ISAME( 8 ) = INCXS.EQ.INCX
ELSE IF( BANDED )
THEN
ISAME( 5 ) = KS.EQ.K
ISAME( 6 ) = LSE( AS, AA, LAA )
ISAME( 7 ) = LDAS.EQ.LDA
IF(
NULL )
THEN
ISAME( 8 ) = LSE( XS, XX, LX )
ELSE
ISAME( 8 ) = LSERES(
'GE',
' ', 1, N, XS,
$ XX, ABS( INCX ) )
END IF
ISAME( 9 ) = INCXS.EQ.INCX
ELSE IF( PACKED )
THEN
ISAME( 5 ) = LSE( AS, AA, LAA )
IF(
NULL )
THEN
ISAME( 6 ) = LSE( XS, XX, LX )
ELSE
ISAME( 6 ) = LSERES(
'GE',
' ', 1, N, XS,
$ XX, ABS( INCX ) )
END IF
ISAME( 7 ) = INCXS.EQ.INCX
END IF
*
*
If data was incorrectly changed, report and
*
return.
*
SAME = .
TRUE.
DO 40 I = 1, NARGS
SAME = SAME.AND.ISAME( I )
IF( .NOT.ISAME( I ) )
$
WRITE( NOUT,
FMT = 9998 )I
40
CONTINUE
IF( .NOT.SAME )
THEN
FATAL = .
TRUE.
GO TO 120
END IF
*
IF( .NOT.
NULL )
THEN
IF( SNAME( 4: 5 ).EQ.
'MV' )
THEN
*
* Check the result.
*
CALL SMVCH( TRANS, N, N, ONE, A, NMAX, X,
$ INCX, ZERO, Z, INCX, XT, G,
$ XX, EPS,
ERR, FATAL, NOUT,
$ .
TRUE. )
ELSE IF( SNAME( 4: 5 ).EQ.
'SV' )
THEN
*
* Compute approximation
to original vector.
*
DO 50 I = 1, N
Z( I ) = XX( 1 + ( I - 1 )*
$ ABS( INCX ) )
XX( 1 + ( I - 1 )*ABS( INCX ) )
$ = X( I )
50
CONTINUE
CALL SMVCH( TRANS, N, N, ONE, A, NMAX, Z,
$ INCX, ZERO, X, INCX, XT, G,
$ XX, EPS,
ERR, FATAL, NOUT,
$ .
FALSE. )
END IF
ERRMAX = MAX( ERRMAX,
ERR )
*
If got really bad answer, report and
return.
IF( FATAL )
$
GO TO 120
ELSE
* Avoid repeating tests with N.le.0.
GO TO 110
END IF
*
60
CONTINUE
*
70
CONTINUE
*
80
CONTINUE
*
90
CONTINUE
*
100
CONTINUE
*
110
CONTINUE
*
* Report result.
*
IF( ERRMAX.LT.THRESH )
THEN
WRITE( NOUT,
FMT = 9999 )SNAME, NC
ELSE
WRITE( NOUT,
FMT = 9997 )SNAME, NC, ERRMAX
END IF
GO TO 130
*
120
CONTINUE
WRITE( NOUT,
FMT = 9996 )SNAME
IF( FULL )
THEN
WRITE( NOUT,
FMT = 9993 )NC, SNAME, UPLO, TRANS, DIAG, N, LDA,
$ INCX
ELSE IF( BANDED )
THEN
WRITE( NOUT,
FMT = 9994 )NC, SNAME, UPLO, TRANS, DIAG, N, K,
$ LDA, INCX
ELSE IF( PACKED )
THEN
WRITE( NOUT,
FMT = 9995 )NC, SNAME, UPLO, TRANS, DIAG, N, INCX
END IF
*
130
CONTINUE
RETURN
*
9999
FORMAT(
' ', A6,
' PASSED THE COMPUTATIONAL TESTS (', I6,
' CALL',
$
'S)' )
9998
FORMAT(
' ******* FATAL ERROR - PARAMETER NUMBER ', I2,
' WAS CH',
$
'ANGED INCORRECTLY *******' )
9997
FORMAT(
' ', A6,
' COMPLETED THE COMPUTATIONAL TESTS (', I6,
' C',
$
'ALLS)', /
' ******* BUT WITH MAXIMUM TEST RATIO', F8.2,
$
' - SUSPECT *******' )
9996
FORMAT(
' ******* ', A6,
' FAILED ON CALL NUMBER:' )
9995
FORMAT( 1X, I6,
': ', A6,
'(', 3(
'''', A1,
''',' ), I3,
', AP, ',
$
'X,', I2,
') .' )
9994
FORMAT( 1X, I6,
': ', A6,
'(', 3(
'''', A1,
''',' ), 2( I3,
',' ),
$
' A,', I3,
', X,', I2,
') .' )
9993
FORMAT( 1X, I6,
': ', A6,
'(', 3(
'''', A1,
''',' ), I3,
', A,',
$ I3,
', X,', I2,
') .' )
9992
FORMAT(
' ******* FATAL ERROR - ERROR-EXIT TAKEN ON VALID CALL *',
$
'******' )
*
*
End of SCHK3.
*
END
SUBROUTINE SCHK4( SNAME, EPS, THRESH, NOUT, NTRA, TRACE, REWI,
$ FATAL, NIDIM, IDIM, NALF, ALF, NINC, INC, NMAX,
$ INCMAX, A, AA, AS, X, XX, XS, Y, YY, YS, YT, G,
$ Z )
*
* Tests SGER.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Parameters ..
REAL ZERO, HALF, ONE
PARAMETER ( ZERO = 0.0, HALF = 0.5, ONE = 1.0 )
* .. Scalar Arguments ..
REAL EPS, THRESH
INTEGER INCMAX, NALF, NIDIM, NINC, NMAX, NOUT, NTRA
LOGICAL FATAL, REWI, TRACE
CHARACTER*6 SNAME
* .. Array Arguments ..
REAL A( NMAX, NMAX ), AA( NMAX*NMAX ), ALF( NALF ),
$ AS( NMAX*NMAX ), G( NMAX ), X( NMAX ),
$ XS( NMAX*INCMAX ), XX( NMAX*INCMAX ),
$ Y( NMAX ), YS( NMAX*INCMAX ), YT( NMAX ),
$ YY( NMAX*INCMAX ), Z( NMAX )
INTEGER IDIM( NIDIM ), INC( NINC )
* .. Local Scalars ..
REAL ALPHA, ALS,
ERR, ERRMAX, TRANSL
INTEGER I, IA, IM,
IN, INCX, INCXS, INCY, INCYS, IX,
$ IY, J, LAA, LDA, LDAS, LX, LY, M, MS, N, NARGS,
$ NC, ND, NS
LOGICAL NULL, RESET, SAME
* .. Local Arrays ..
REAL W( 1 )
LOGICAL ISAME( 13 )
* ..
External Functions ..
LOGICAL LSE, LSERES
EXTERNAL LSE, LSERES
* ..
External Subroutines ..
EXTERNAL SGER, SMAKE, SMVCH
* ..
Intrinsic Functions ..
INTRINSIC ABS, MAX, MIN
* .. Scalars
in Common ..
INTEGER INFOT, NOUTC
LOGICAL LERR, OK
* ..
Common blocks ..
COMMON /INFOC/INFOT, NOUTC, OK, LERR
* .. Executable Statements ..
* Define the
number of arguments.
NARGS = 9
*
NC = 0
RESET = .
TRUE.
ERRMAX = ZERO
*
DO 120
IN = 1, NIDIM
N = IDIM(
IN )
ND = N/2 + 1
*
DO 110 IM = 1, 2
IF( IM.EQ.1 )
$ M = MAX( N - ND, 0 )
IF( IM.EQ.2 )
$ M = MIN( N + ND, NMAX )
*
* Set LDA
to 1 more than minimum value
if room.
LDA = M
IF( LDA.LT.NMAX )
$ LDA = LDA + 1
* Skip tests
if not enough room.
IF( LDA.GT.NMAX )
$
GO TO 110
LAA = LDA*N
NULL = N.LE.0.OR.M.LE.0
*
DO 100 IX = 1, NINC
INCX = INC( IX )
LX = ABS( INCX )*M
*
* Generate the vector X.
*
TRANSL = HALF
CALL SMAKE(
'GE',
' ',
' ', 1, M, X, 1, XX, ABS( INCX ),
$ 0, M - 1, RESET, TRANSL )
IF( M.GT.1 )
THEN
X( M/2 ) = ZERO
XX( 1 + ABS( INCX )*( M/2 - 1 ) ) = ZERO
END IF
*
DO 90 IY = 1, NINC
INCY = INC( IY )
LY = ABS( INCY )*N
*
* Generate the vector Y.
*
TRANSL = ZERO
CALL SMAKE(
'GE',
' ',
' ', 1, N, Y, 1, YY,
$ ABS( INCY ), 0, N - 1, RESET, TRANSL )
IF( N.GT.1 )
THEN
Y( N/2 ) = ZERO
YY( 1 + ABS( INCY )*( N/2 - 1 ) ) = ZERO
END IF
*
DO 80 IA = 1, NALF
ALPHA = ALF( IA )
*
* Generate the matrix A.
*
TRANSL = ZERO
CALL SMAKE( SNAME( 2: 3 ),
' ',
' ', M, N, A, NMAX,
$ AA, LDA, M - 1, N - 1, RESET, TRANSL )
*
NC = NC + 1
*
*
Save every datum before calling the
subroutine.
*
MS = M
NS = N
ALS = ALPHA
DO 10 I = 1, LAA
AS( I ) = AA( I )
10
CONTINUE
LDAS = LDA
DO 20 I = 1, LX
XS( I ) = XX( I )
20
CONTINUE
INCXS = INCX
DO 30 I = 1, LY
YS( I ) = YY( I )
30
CONTINUE
INCYS = INCY
*
*
Call the
subroutine.
*
IF( TRACE )
$
WRITE( NTRA,
FMT = 9994 )NC, SNAME, M, N,
$ ALPHA, INCX, INCY, LDA
IF( REWI )
$
REWIND NTRA
CALL SGER( M, N, ALPHA, XX, INCX, YY, INCY, AA,
$ LDA )
*
* Check
if error-exit was taken incorrectly.
*
IF( .NOT.OK )
THEN
WRITE( NOUT,
FMT = 9993 )
FATAL = .
TRUE.
GO TO 140
END IF
*
* See what
data changed inside
subroutine.
*
ISAME( 1 ) = MS.EQ.M
ISAME( 2 ) = NS.EQ.N
ISAME( 3 ) = ALS.EQ.ALPHA
ISAME( 4 ) = LSE( XS, XX, LX )
ISAME( 5 ) = INCXS.EQ.INCX
ISAME( 6 ) = LSE( YS, YY, LY )
ISAME( 7 ) = INCYS.EQ.INCY
IF(
NULL )
THEN
ISAME( 8 ) = LSE( AS, AA, LAA )
ELSE
ISAME( 8 ) = LSERES(
'GE',
' ', M, N, AS, AA,
$ LDA )
END IF
ISAME( 9 ) = LDAS.EQ.LDA
*
*
If data was incorrectly changed, report and
return.
*
SAME = .
TRUE.
DO 40 I = 1, NARGS
SAME = SAME.AND.ISAME( I )
IF( .NOT.ISAME( I ) )
$
WRITE( NOUT,
FMT = 9998 )I
40
CONTINUE
IF( .NOT.SAME )
THEN
FATAL = .
TRUE.
GO TO 140
END IF
*
IF( .NOT.
NULL )
THEN
*
* Check the result column by column.
*
IF( INCX.GT.0 )
THEN
DO 50 I = 1, M
Z( I ) = X( I )
50
CONTINUE
ELSE
DO 60 I = 1, M
Z( I ) = X( M - I + 1 )
60
CONTINUE
END IF
DO 70 J = 1, N
IF( INCY.GT.0 )
THEN
W( 1 ) = Y( J )
ELSE
W( 1 ) = Y( N - J + 1 )
END IF
CALL SMVCH(
'N', M, 1, ALPHA, Z, NMAX, W, 1,
$ ONE, A( 1, J ), 1, YT, G,
$ AA( 1 + ( J - 1 )*LDA ), EPS,
$
ERR, FATAL, NOUT, .
TRUE. )
ERRMAX = MAX( ERRMAX,
ERR )
*
If got really bad answer, report and
return.
IF( FATAL )
$
GO TO 130
70
CONTINUE
ELSE
* Avoid repeating tests with M.le.0 or N.le.0.
GO TO 110
END IF
*
80
CONTINUE
*
90
CONTINUE
*
100
CONTINUE
*
110
CONTINUE
*
120
CONTINUE
*
* Report result.
*
IF( ERRMAX.LT.THRESH )
THEN
WRITE( NOUT,
FMT = 9999 )SNAME, NC
ELSE
WRITE( NOUT,
FMT = 9997 )SNAME, NC, ERRMAX
END IF
GO TO 150
*
130
CONTINUE
WRITE( NOUT,
FMT = 9995 )J
*
140
CONTINUE
WRITE( NOUT,
FMT = 9996 )SNAME
WRITE( NOUT,
FMT = 9994 )NC, SNAME, M, N, ALPHA, INCX, INCY, LDA
*
150
CONTINUE
RETURN
*
9999
FORMAT(
' ', A6,
' PASSED THE COMPUTATIONAL TESTS (', I6,
' CALL',
$
'S)' )
9998
FORMAT(
' ******* FATAL ERROR - PARAMETER NUMBER ', I2,
' WAS CH',
$
'ANGED INCORRECTLY *******' )
9997
FORMAT(
' ', A6,
' COMPLETED THE COMPUTATIONAL TESTS (', I6,
' C',
$
'ALLS)', /
' ******* BUT WITH MAXIMUM TEST RATIO', F8.2,
$
' - SUSPECT *******' )
9996
FORMAT(
' ******* ', A6,
' FAILED ON CALL NUMBER:' )
9995
FORMAT(
' THESE ARE THE RESULTS FOR COLUMN ', I3 )
9994
FORMAT( 1X, I6,
': ', A6,
'(', 2( I3,
',' ), F4.1,
', X,', I2,
$
', Y,', I2,
', A,', I3,
') .' )
9993
FORMAT(
' ******* FATAL ERROR - ERROR-EXIT TAKEN ON VALID CALL *',
$
'******' )
*
*
End of SCHK4.
*
END
SUBROUTINE SCHK5( SNAME, EPS, THRESH, NOUT, NTRA, TRACE, REWI,
$ FATAL, NIDIM, IDIM, NALF, ALF, NINC, INC, NMAX,
$ INCMAX, A, AA, AS, X, XX, XS, Y, YY, YS, YT, G,
$ Z )
*
* Tests SSYR and SSPR.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Parameters ..
REAL ZERO, HALF, ONE
PARAMETER ( ZERO = 0.0, HALF = 0.5, ONE = 1.0 )
* .. Scalar Arguments ..
REAL EPS, THRESH
INTEGER INCMAX, NALF, NIDIM, NINC, NMAX, NOUT, NTRA
LOGICAL FATAL, REWI, TRACE
CHARACTER*6 SNAME
* .. Array Arguments ..
REAL A( NMAX, NMAX ), AA( NMAX*NMAX ), ALF( NALF ),
$ AS( NMAX*NMAX ), G( NMAX ), X( NMAX ),
$ XS( NMAX*INCMAX ), XX( NMAX*INCMAX ),
$ Y( NMAX ), YS( NMAX*INCMAX ), YT( NMAX ),
$ YY( NMAX*INCMAX ), Z( NMAX )
INTEGER IDIM( NIDIM ), INC( NINC )
* .. Local Scalars ..
REAL ALPHA, ALS,
ERR, ERRMAX, TRANSL
INTEGER I, IA, IC,
IN, INCX, INCXS, IX, J, JA, JJ, LAA,
$ LDA, LDAS, LJ, LX, N, NARGS, NC, NS
LOGICAL FULL,
NULL, PACKED, RESET, SAME, UPPER
CHARACTER*1 UPLO, UPLOS
CHARACTER*2 ICH
* .. Local Arrays ..
REAL W( 1 )
LOGICAL ISAME( 13 )
* ..
External Functions ..
LOGICAL LSE, LSERES
EXTERNAL LSE, LSERES
* ..
External Subroutines ..
EXTERNAL SMAKE, SMVCH, SSPR, SSYR
* ..
Intrinsic Functions ..
INTRINSIC ABS, MAX
* .. Scalars
in Common ..
INTEGER INFOT, NOUTC
LOGICAL LERR, OK
* ..
Common blocks ..
COMMON /INFOC/INFOT, NOUTC, OK, LERR
* ..
Data statements ..
DATA ICH/
'UL'/
* .. Executable Statements ..
FULL = SNAME( 3: 3 ).EQ.
'Y'
PACKED = SNAME( 3: 3 ).EQ.
'P'
* Define the
number of arguments.
IF( FULL )
THEN
NARGS = 7
ELSE IF( PACKED )
THEN
NARGS = 6
END IF
*
NC = 0
RESET = .
TRUE.
ERRMAX = ZERO
*
DO 100
IN = 1, NIDIM
N = IDIM(
IN )
* Set LDA
to 1 more than minimum value
if room.
LDA = N
IF( LDA.LT.NMAX )
$ LDA = LDA + 1
* Skip tests
if not enough room.
IF( LDA.GT.NMAX )
$
GO TO 100
IF( PACKED )
THEN
LAA = ( N*( N + 1 ) )/2
ELSE
LAA = LDA*N
END IF
*
DO 90 IC = 1, 2
UPLO = ICH( IC: IC )
UPPER = UPLO.EQ.
'U'
*
DO 80 IX = 1, NINC
INCX = INC( IX )
LX = ABS( INCX )*N
*
* Generate the vector X.
*
TRANSL = HALF
CALL SMAKE(
'GE',
' ',
' ', 1, N, X, 1, XX, ABS( INCX ),
$ 0, N - 1, RESET, TRANSL )
IF( N.GT.1 )
THEN
X( N/2 ) = ZERO
XX( 1 + ABS( INCX )*( N/2 - 1 ) ) = ZERO
END IF
*
DO 70 IA = 1, NALF
ALPHA = ALF( IA )
NULL = N.LE.0.OR.ALPHA.EQ.ZERO
*
* Generate the matrix A.
*
TRANSL = ZERO
CALL SMAKE( SNAME( 2: 3 ), UPLO,
' ', N, N, A, NMAX,
$ AA, LDA, N - 1, N - 1, RESET, TRANSL )
*
NC = NC + 1
*
*
Save every datum before calling the
subroutine.
*
UPLOS = UPLO
NS = N
ALS = ALPHA
DO 10 I = 1, LAA
AS( I ) = AA( I )
10
CONTINUE
LDAS = LDA
DO 20 I = 1, LX
XS( I ) = XX( I )
20
CONTINUE
INCXS = INCX
*
*
Call the
subroutine.
*
IF( FULL )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9993 )NC, SNAME, UPLO, N,
$ ALPHA, INCX, LDA
IF( REWI )
$
REWIND NTRA
CALL SSYR( UPLO, N, ALPHA, XX, INCX, AA, LDA )
ELSE IF( PACKED )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9994 )NC, SNAME, UPLO, N,
$ ALPHA, INCX
IF( REWI )
$
REWIND NTRA
CALL SSPR( UPLO, N, ALPHA, XX, INCX, AA )
END IF
*
* Check
if error-exit was taken incorrectly.
*
IF( .NOT.OK )
THEN
WRITE( NOUT,
FMT = 9992 )
FATAL = .
TRUE.
GO TO 120
END IF
*
* See what
data changed inside subroutines.
*
ISAME( 1 ) = UPLO.EQ.UPLOS
ISAME( 2 ) = NS.EQ.N
ISAME( 3 ) = ALS.EQ.ALPHA
ISAME( 4 ) = LSE( XS, XX, LX )
ISAME( 5 ) = INCXS.EQ.INCX
IF(
NULL )
THEN
ISAME( 6 ) = LSE( AS, AA, LAA )
ELSE
ISAME( 6 ) = LSERES( SNAME( 2: 3 ), UPLO, N, N, AS,
$ AA, LDA )
END IF
IF( .NOT.PACKED )
THEN
ISAME( 7 ) = LDAS.EQ.LDA
END IF
*
*
If data was incorrectly changed, report and
return.
*
SAME = .
TRUE.
DO 30 I = 1, NARGS
SAME = SAME.AND.ISAME( I )
IF( .NOT.ISAME( I ) )
$
WRITE( NOUT,
FMT = 9998 )I
30
CONTINUE
IF( .NOT.SAME )
THEN
FATAL = .
TRUE.
GO TO 120
END IF
*
IF( .NOT.
NULL )
THEN
*
* Check the result column by column.
*
IF( INCX.GT.0 )
THEN
DO 40 I = 1, N
Z( I ) = X( I )
40
CONTINUE
ELSE
DO 50 I = 1, N
Z( I ) = X( N - I + 1 )
50
CONTINUE
END IF
JA = 1
DO 60 J = 1, N
W( 1 ) = Z( J )
IF( UPPER )
THEN
JJ = 1
LJ = J
ELSE
JJ = J
LJ = N - J + 1
END IF
CALL SMVCH(
'N', LJ, 1, ALPHA, Z( JJ ), LJ, W,
$ 1, ONE, A( JJ, J ), 1, YT, G,
$ AA( JA ), EPS,
ERR, FATAL, NOUT,
$ .
TRUE. )
IF( FULL )
THEN
IF( UPPER )
THEN
JA = JA + LDA
ELSE
JA = JA + LDA + 1
END IF
ELSE
JA = JA + LJ
END IF
ERRMAX = MAX( ERRMAX,
ERR )
*
If got really bad answer, report and
return.
IF( FATAL )
$
GO TO 110
60
CONTINUE
ELSE
* Avoid repeating tests
if N.le.0.
IF( N.LE.0 )
$
GO TO 100
END IF
*
70
CONTINUE
*
80
CONTINUE
*
90
CONTINUE
*
100
CONTINUE
*
* Report result.
*
IF( ERRMAX.LT.THRESH )
THEN
WRITE( NOUT,
FMT = 9999 )SNAME, NC
ELSE
WRITE( NOUT,
FMT = 9997 )SNAME, NC, ERRMAX
END IF
GO TO 130
*
110
CONTINUE
WRITE( NOUT,
FMT = 9995 )J
*
120
CONTINUE
WRITE( NOUT,
FMT = 9996 )SNAME
IF( FULL )
THEN
WRITE( NOUT,
FMT = 9993 )NC, SNAME, UPLO, N, ALPHA, INCX, LDA
ELSE IF( PACKED )
THEN
WRITE( NOUT,
FMT = 9994 )NC, SNAME, UPLO, N, ALPHA, INCX
END IF
*
130
CONTINUE
RETURN
*
9999
FORMAT(
' ', A6,
' PASSED THE COMPUTATIONAL TESTS (', I6,
' CALL',
$
'S)' )
9998
FORMAT(
' ******* FATAL ERROR - PARAMETER NUMBER ', I2,
' WAS CH',
$
'ANGED INCORRECTLY *******' )
9997
FORMAT(
' ', A6,
' COMPLETED THE COMPUTATIONAL TESTS (', I6,
' C',
$
'ALLS)', /
' ******* BUT WITH MAXIMUM TEST RATIO', F8.2,
$
' - SUSPECT *******' )
9996
FORMAT(
' ******* ', A6,
' FAILED ON CALL NUMBER:' )
9995
FORMAT(
' THESE ARE THE RESULTS FOR COLUMN ', I3 )
9994
FORMAT( 1X, I6,
': ', A6,
'(''', A1,
''',', I3,
',', F4.1,
', X,',
$ I2,
', AP) .' )
9993
FORMAT( 1X, I6,
': ', A6,
'(''', A1,
''',', I3,
',', F4.1,
', X,',
$ I2,
', A,', I3,
') .' )
9992
FORMAT(
' ******* FATAL ERROR - ERROR-EXIT TAKEN ON VALID CALL *',
$
'******' )
*
*
End of SCHK5.
*
END
SUBROUTINE SCHK6( SNAME, EPS, THRESH, NOUT, NTRA, TRACE, REWI,
$ FATAL, NIDIM, IDIM, NALF, ALF, NINC, INC, NMAX,
$ INCMAX, A, AA, AS, X, XX, XS, Y, YY, YS, YT, G,
$ Z )
*
* Tests SSYR2 and SSPR2.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Parameters ..
REAL ZERO, HALF, ONE
PARAMETER ( ZERO = 0.0, HALF = 0.5, ONE = 1.0 )
* .. Scalar Arguments ..
REAL EPS, THRESH
INTEGER INCMAX, NALF, NIDIM, NINC, NMAX, NOUT, NTRA
LOGICAL FATAL, REWI, TRACE
CHARACTER*6 SNAME
* .. Array Arguments ..
REAL A( NMAX, NMAX ), AA( NMAX*NMAX ), ALF( NALF ),
$ AS( NMAX*NMAX ), G( NMAX ), X( NMAX ),
$ XS( NMAX*INCMAX ), XX( NMAX*INCMAX ),
$ Y( NMAX ), YS( NMAX*INCMAX ), YT( NMAX ),
$ YY( NMAX*INCMAX ), Z( NMAX, 2 )
INTEGER IDIM( NIDIM ), INC( NINC )
* .. Local Scalars ..
REAL ALPHA, ALS,
ERR, ERRMAX, TRANSL
INTEGER I, IA, IC,
IN, INCX, INCXS, INCY, INCYS, IX,
$ IY, J, JA, JJ, LAA, LDA, LDAS, LJ, LX, LY, N,
$ NARGS, NC, NS
LOGICAL FULL,
NULL, PACKED, RESET, SAME, UPPER
CHARACTER*1 UPLO, UPLOS
CHARACTER*2 ICH
* .. Local Arrays ..
REAL W( 2 )
LOGICAL ISAME( 13 )
* ..
External Functions ..
LOGICAL LSE, LSERES
EXTERNAL LSE, LSERES
* ..
External Subroutines ..
EXTERNAL SMAKE, SMVCH, SSPR2, SSYR2
* ..
Intrinsic Functions ..
INTRINSIC ABS, MAX
* .. Scalars
in Common ..
INTEGER INFOT, NOUTC
LOGICAL LERR, OK
* ..
Common blocks ..
COMMON /INFOC/INFOT, NOUTC, OK, LERR
* ..
Data statements ..
DATA ICH/
'UL'/
* .. Executable Statements ..
FULL = SNAME( 3: 3 ).EQ.
'Y'
PACKED = SNAME( 3: 3 ).EQ.
'P'
* Define the
number of arguments.
IF( FULL )
THEN
NARGS = 9
ELSE IF( PACKED )
THEN
NARGS = 8
END IF
*
NC = 0
RESET = .
TRUE.
ERRMAX = ZERO
*
DO 140
IN = 1, NIDIM
N = IDIM(
IN )
* Set LDA
to 1 more than minimum value
if room.
LDA = N
IF( LDA.LT.NMAX )
$ LDA = LDA + 1
* Skip tests
if not enough room.
IF( LDA.GT.NMAX )
$
GO TO 140
IF( PACKED )
THEN
LAA = ( N*( N + 1 ) )/2
ELSE
LAA = LDA*N
END IF
*
DO 130 IC = 1, 2
UPLO = ICH( IC: IC )
UPPER = UPLO.EQ.
'U'
*
DO 120 IX = 1, NINC
INCX = INC( IX )
LX = ABS( INCX )*N
*
* Generate the vector X.
*
TRANSL = HALF
CALL SMAKE(
'GE',
' ',
' ', 1, N, X, 1, XX, ABS( INCX ),
$ 0, N - 1, RESET, TRANSL )
IF( N.GT.1 )
THEN
X( N/2 ) = ZERO
XX( 1 + ABS( INCX )*( N/2 - 1 ) ) = ZERO
END IF
*
DO 110 IY = 1, NINC
INCY = INC( IY )
LY = ABS( INCY )*N
*
* Generate the vector Y.
*
TRANSL = ZERO
CALL SMAKE(
'GE',
' ',
' ', 1, N, Y, 1, YY,
$ ABS( INCY ), 0, N - 1, RESET, TRANSL )
IF( N.GT.1 )
THEN
Y( N/2 ) = ZERO
YY( 1 + ABS( INCY )*( N/2 - 1 ) ) = ZERO
END IF
*
DO 100 IA = 1, NALF
ALPHA = ALF( IA )
NULL = N.LE.0.OR.ALPHA.EQ.ZERO
*
* Generate the matrix A.
*
TRANSL = ZERO
CALL SMAKE( SNAME( 2: 3 ), UPLO,
' ', N, N, A,
$ NMAX, AA, LDA, N - 1, N - 1, RESET,
$ TRANSL )
*
NC = NC + 1
*
*
Save every datum before calling the
subroutine.
*
UPLOS = UPLO
NS = N
ALS = ALPHA
DO 10 I = 1, LAA
AS( I ) = AA( I )
10
CONTINUE
LDAS = LDA
DO 20 I = 1, LX
XS( I ) = XX( I )
20
CONTINUE
INCXS = INCX
DO 30 I = 1, LY
YS( I ) = YY( I )
30
CONTINUE
INCYS = INCY
*
*
Call the
subroutine.
*
IF( FULL )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9993 )NC, SNAME, UPLO, N,
$ ALPHA, INCX, INCY, LDA
IF( REWI )
$
REWIND NTRA
CALL SSYR2( UPLO, N, ALPHA, XX, INCX, YY, INCY,
$ AA, LDA )
ELSE IF( PACKED )
THEN
IF( TRACE )
$
WRITE( NTRA,
FMT = 9994 )NC, SNAME, UPLO, N,
$ ALPHA, INCX, INCY
IF( REWI )
$
REWIND NTRA
CALL SSPR2( UPLO, N, ALPHA, XX, INCX, YY, INCY,
$ AA )
END IF
*
* Check
if error-exit was taken incorrectly.
*
IF( .NOT.OK )
THEN
WRITE( NOUT,
FMT = 9992 )
FATAL = .
TRUE.
GO TO 160
END IF
*
* See what
data changed inside subroutines.
*
ISAME( 1 ) = UPLO.EQ.UPLOS
ISAME( 2 ) = NS.EQ.N
ISAME( 3 ) = ALS.EQ.ALPHA
ISAME( 4 ) = LSE( XS, XX, LX )
ISAME( 5 ) = INCXS.EQ.INCX
ISAME( 6 ) = LSE( YS, YY, LY )
ISAME( 7 ) = INCYS.EQ.INCY
IF(
NULL )
THEN
ISAME( 8 ) = LSE( AS, AA, LAA )
ELSE
ISAME( 8 ) = LSERES( SNAME( 2: 3 ), UPLO, N, N,
$ AS, AA, LDA )
END IF
IF( .NOT.PACKED )
THEN
ISAME( 9 ) = LDAS.EQ.LDA
END IF
*
*
If data was incorrectly changed, report and
return.
*
SAME = .
TRUE.
DO 40 I = 1, NARGS
SAME = SAME.AND.ISAME( I )
IF( .NOT.ISAME( I ) )
$
WRITE( NOUT,
FMT = 9998 )I
40
CONTINUE
IF( .NOT.SAME )
THEN
FATAL = .
TRUE.
GO TO 160
END IF
*
IF( .NOT.
NULL )
THEN
*
* Check the result column by column.
*
IF( INCX.GT.0 )
THEN
DO 50 I = 1, N
Z( I, 1 ) = X( I )
50
CONTINUE
ELSE
DO 60 I = 1, N
Z( I, 1 ) = X( N - I + 1 )
60
CONTINUE
END IF
IF( INCY.GT.0 )
THEN
DO 70 I = 1, N
Z( I, 2 ) = Y( I )
70
CONTINUE
ELSE
DO 80 I = 1, N
Z( I, 2 ) = Y( N - I + 1 )
80
CONTINUE
END IF
JA = 1
DO 90 J = 1, N
W( 1 ) = Z( J, 2 )
W( 2 ) = Z( J, 1 )
IF( UPPER )
THEN
JJ = 1
LJ = J
ELSE
JJ = J
LJ = N - J + 1
END IF
CALL SMVCH(
'N', LJ, 2, ALPHA, Z( JJ, 1 ),
$ NMAX, W, 1, ONE, A( JJ, J ), 1,
$ YT, G, AA( JA ), EPS,
ERR, FATAL,
$ NOUT, .
TRUE. )
IF( FULL )
THEN
IF( UPPER )
THEN
JA = JA + LDA
ELSE
JA = JA + LDA + 1
END IF
ELSE
JA = JA + LJ
END IF
ERRMAX = MAX( ERRMAX,
ERR )
*
If got really bad answer, report and
return.
IF( FATAL )
$
GO TO 150
90
CONTINUE
ELSE
* Avoid repeating tests with N.le.0.
IF( N.LE.0 )
$
GO TO 140
END IF
*
100
CONTINUE
*
110
CONTINUE
*
120
CONTINUE
*
130
CONTINUE
*
140
CONTINUE
*
* Report result.
*
IF( ERRMAX.LT.THRESH )
THEN
WRITE( NOUT,
FMT = 9999 )SNAME, NC
ELSE
WRITE( NOUT,
FMT = 9997 )SNAME, NC, ERRMAX
END IF
GO TO 170
*
150
CONTINUE
WRITE( NOUT,
FMT = 9995 )J
*
160
CONTINUE
WRITE( NOUT,
FMT = 9996 )SNAME
IF( FULL )
THEN
WRITE( NOUT,
FMT = 9993 )NC, SNAME, UPLO, N, ALPHA, INCX,
$ INCY, LDA
ELSE IF( PACKED )
THEN
WRITE( NOUT,
FMT = 9994 )NC, SNAME, UPLO, N, ALPHA, INCX, INCY
END IF
*
170
CONTINUE
RETURN
*
9999
FORMAT(
' ', A6,
' PASSED THE COMPUTATIONAL TESTS (', I6,
' CALL',
$
'S)' )
9998
FORMAT(
' ******* FATAL ERROR - PARAMETER NUMBER ', I2,
' WAS CH',
$
'ANGED INCORRECTLY *******' )
9997
FORMAT(
' ', A6,
' COMPLETED THE COMPUTATIONAL TESTS (', I6,
' C',
$
'ALLS)', /
' ******* BUT WITH MAXIMUM TEST RATIO', F8.2,
$
' - SUSPECT *******' )
9996
FORMAT(
' ******* ', A6,
' FAILED ON CALL NUMBER:' )
9995
FORMAT(
' THESE ARE THE RESULTS FOR COLUMN ', I3 )
9994
FORMAT( 1X, I6,
': ', A6,
'(''', A1,
''',', I3,
',', F4.1,
', X,',
$ I2,
', Y,', I2,
', AP) .' )
9993
FORMAT( 1X, I6,
': ', A6,
'(''', A1,
''',', I3,
',', F4.1,
', X,',
$ I2,
', Y,', I2,
', A,', I3,
') .' )
9992
FORMAT(
' ******* FATAL ERROR - ERROR-EXIT TAKEN ON VALID CALL *',
$
'******' )
*
*
End of SCHK6.
*
END
SUBROUTINE SCHKE( ISNUM, SRNAMT, NOUT )
*
* Tests the error exits from the Level 2 Blas.
* Requires a special version of the error-handling routine XERBLA.
* ALPHA, BETA, A, X and Y should not need
to be defined.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Scalar Arguments ..
INTEGER ISNUM, NOUT
CHARACTER*6 SRNAMT
* .. Scalars
in Common ..
INTEGER INFOT, NOUTC
LOGICAL LERR, OK
* .. Local Scalars ..
REAL ALPHA, BETA
* .. Local Arrays ..
REAL A( 1, 1 ), X( 1 ), Y( 1 )
* ..
External Subroutines ..
EXTERNAL CHKXER, SGBMV, SGEMV, SGER, SSBMV, SSPMV, SSPR,
$ SSPR2, SSYMV, SSYR, SSYR2, STBMV, STBSV, STPMV,
$ STPSV, STRMV, STRSV
* ..
Common blocks ..
COMMON /INFOC/INFOT, NOUTC, OK, LERR
* .. Executable Statements ..
* OK is set
to .
FALSE. by the special version of XERBLA or by CHKXER
*
if anything is wrong.
OK = .
TRUE.
* LERR is set
to .
TRUE. by the special version of XERBLA each time
* it is called, and is
then tested and re-set by CHKXER.
LERR = .
FALSE.
GO TO ( 10, 20, 30, 40, 50, 60, 70, 80,
$ 90, 100, 110, 120, 130, 140, 150,
$ 160 )ISNUM
10 INFOT = 1
CALL SGEMV(
'/', 0, 0, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGEMV(
'N', -1, 0, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 3
CALL SGEMV(
'N', 0, -1, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 6
CALL SGEMV(
'N', 2, 0, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 8
CALL SGEMV(
'N', 0, 0, ALPHA, A, 1, X, 0, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 11
CALL SGEMV(
'N', 0, 0, ALPHA, A, 1, X, 1, BETA, Y, 0 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
20 INFOT = 1
CALL SGBMV(
'/', 0, 0, 0, 0, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGBMV(
'N', -1, 0, 0, 0, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 3
CALL SGBMV(
'N', 0, -1, 0, 0, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 4
CALL SGBMV(
'N', 0, 0, -1, 0, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SGBMV(
'N', 2, 0, 0, -1, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 8
CALL SGBMV(
'N', 0, 0, 1, 0, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 10
CALL SGBMV(
'N', 0, 0, 0, 0, ALPHA, A, 1, X, 0, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 13
CALL SGBMV(
'N', 0, 0, 0, 0, ALPHA, A, 1, X, 1, BETA, Y, 0 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
30 INFOT = 1
CALL SSYMV(
'/', 0, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SSYMV(
'U', -1, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SSYMV(
'U', 2, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 7
CALL SSYMV(
'U', 0, ALPHA, A, 1, X, 0, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 10
CALL SSYMV(
'U', 0, ALPHA, A, 1, X, 1, BETA, Y, 0 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
40 INFOT = 1
CALL SSBMV(
'/', 0, 0, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SSBMV(
'U', -1, 0, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 3
CALL SSBMV(
'U', 0, -1, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 6
CALL SSBMV(
'U', 0, 1, ALPHA, A, 1, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 8
CALL SSBMV(
'U', 0, 0, ALPHA, A, 1, X, 0, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 11
CALL SSBMV(
'U', 0, 0, ALPHA, A, 1, X, 1, BETA, Y, 0 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
50 INFOT = 1
CALL SSPMV(
'/', 0, ALPHA, A, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SSPMV(
'U', -1, ALPHA, A, X, 1, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 6
CALL SSPMV(
'U', 0, ALPHA, A, X, 0, BETA, Y, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 9
CALL SSPMV(
'U', 0, ALPHA, A, X, 1, BETA, Y, 0 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
60 INFOT = 1
CALL STRMV(
'/',
'N',
'N', 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL STRMV(
'U',
'/',
'N', 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 3
CALL STRMV(
'U',
'N',
'/', 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 4
CALL STRMV(
'U',
'N',
'N', -1, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 6
CALL STRMV(
'U',
'N',
'N', 2, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 8
CALL STRMV(
'U',
'N',
'N', 0, A, 1, X, 0 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
70 INFOT = 1
CALL STBMV(
'/',
'N',
'N', 0, 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL STBMV(
'U',
'/',
'N', 0, 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 3
CALL STBMV(
'U',
'N',
'/', 0, 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 4
CALL STBMV(
'U',
'N',
'N', -1, 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 5
CALL STBMV(
'U',
'N',
'N', 0, -1, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 7
CALL STBMV(
'U',
'N',
'N', 0, 1, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 9
CALL STBMV(
'U',
'N',
'N', 0, 0, A, 1, X, 0 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
80 INFOT = 1
CALL STPMV(
'/',
'N',
'N', 0, A, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL STPMV(
'U',
'/',
'N', 0, A, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 3
CALL STPMV(
'U',
'N',
'/', 0, A, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 4
CALL STPMV(
'U',
'N',
'N', -1, A, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 7
CALL STPMV(
'U',
'N',
'N', 0, A, X, 0 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
90 INFOT = 1
CALL STRSV(
'/',
'N',
'N', 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL STRSV(
'U',
'/',
'N', 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 3
CALL STRSV(
'U',
'N',
'/', 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 4
CALL STRSV(
'U',
'N',
'N', -1, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 6
CALL STRSV(
'U',
'N',
'N', 2, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 8
CALL STRSV(
'U',
'N',
'N', 0, A, 1, X, 0 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
100 INFOT = 1
CALL STBSV(
'/',
'N',
'N', 0, 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL STBSV(
'U',
'/',
'N', 0, 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 3
CALL STBSV(
'U',
'N',
'/', 0, 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 4
CALL STBSV(
'U',
'N',
'N', -1, 0, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 5
CALL STBSV(
'U',
'N',
'N', 0, -1, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 7
CALL STBSV(
'U',
'N',
'N', 0, 1, A, 1, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 9
CALL STBSV(
'U',
'N',
'N', 0, 0, A, 1, X, 0 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
110 INFOT = 1
CALL STPSV(
'/',
'N',
'N', 0, A, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL STPSV(
'U',
'/',
'N', 0, A, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 3
CALL STPSV(
'U',
'N',
'/', 0, A, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 4
CALL STPSV(
'U',
'N',
'N', -1, A, X, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 7
CALL STPSV(
'U',
'N',
'N', 0, A, X, 0 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
120 INFOT = 1
CALL SGER( -1, 0, ALPHA, X, 1, Y, 1, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGER( 0, -1, ALPHA, X, 1, Y, 1, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SGER( 0, 0, ALPHA, X, 0, Y, 1, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 7
CALL SGER( 0, 0, ALPHA, X, 1, Y, 0, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 9
CALL SGER( 2, 0, ALPHA, X, 1, Y, 1, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
130 INFOT = 1
CALL SSYR(
'/', 0, ALPHA, X, 1, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SSYR(
'U', -1, ALPHA, X, 1, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SSYR(
'U', 0, ALPHA, X, 0, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 7
CALL SSYR(
'U', 2, ALPHA, X, 1, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
140 INFOT = 1
CALL SSPR(
'/', 0, ALPHA, X, 1, A )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SSPR(
'U', -1, ALPHA, X, 1, A )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SSPR(
'U', 0, ALPHA, X, 0, A )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
150 INFOT = 1
CALL SSYR2(
'/', 0, ALPHA, X, 1, Y, 1, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SSYR2(
'U', -1, ALPHA, X, 1, Y, 1, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SSYR2(
'U', 0, ALPHA, X, 0, Y, 1, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 7
CALL SSYR2(
'U', 0, ALPHA, X, 1, Y, 0, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 9
CALL SSYR2(
'U', 2, ALPHA, X, 1, Y, 1, A, 1 )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
GO TO 170
160 INFOT = 1
CALL SSPR2(
'/', 0, ALPHA, X, 1, Y, 1, A )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SSPR2(
'U', -1, ALPHA, X, 1, Y, 1, A )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SSPR2(
'U', 0, ALPHA, X, 0, Y, 1, A )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
INFOT = 7
CALL SSPR2(
'U', 0, ALPHA, X, 1, Y, 0, A )
CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
*
170
IF( OK )
THEN
WRITE( NOUT,
FMT = 9999 )SRNAMT
ELSE
WRITE( NOUT,
FMT = 9998 )SRNAMT
END IF
RETURN
*
9999
FORMAT(
' ', A6,
' PASSED THE TESTS OF ERROR-EXITS' )
9998
FORMAT(
' ******* ', A6,
' FAILED THE TESTS OF ERROR-EXITS *****',
$
'**' )
*
*
End of SCHKE.
*
END
SUBROUTINE SMAKE(
TYPE, UPLO, DIAG, M, N, A, NMAX, AA, LDA, KL,
$ KU, RESET, TRANSL )
*
* Generates values for an M by N matrix A within the bandwidth
* defined by KL and KU.
* Stores the values
in the array AA
in the
data structure required
* by the routine, with unwanted elements set
to rogue value.
*
*
TYPE is
'GE',
'GB',
'SY',
'SB',
'SP',
'TR',
'TB' OR
'TP'.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Parameters ..
REAL ZERO, ONE
PARAMETER ( ZERO = 0.0, ONE = 1.0 )
REAL ROGUE
PARAMETER ( ROGUE = -1.0E10 )
* .. Scalar Arguments ..
REAL TRANSL
INTEGER KL, KU, LDA, M, N, NMAX
LOGICAL RESET
CHARACTER*1 DIAG, UPLO
CHARACTER*2
TYPE
* .. Array Arguments ..
REAL A( NMAX, * ), AA( * )
* .. Local Scalars ..
INTEGER I, I1, I2, I3, IBEG, IEND, IOFF, J, KK
LOGICAL GEN, LOWER, SYM, TRI,
UNIT, UPPER
* ..
External Functions ..
REAL SBEG
EXTERNAL SBEG
* ..
Intrinsic Functions ..
INTRINSIC MAX, MIN
* .. Executable Statements ..
GEN =
TYPE( 1: 1 ).EQ.
'G'
SYM =
TYPE( 1: 1 ).EQ.
'S'
TRI =
TYPE( 1: 1 ).EQ.
'T'
UPPER = ( SYM.OR.TRI ).AND.UPLO.EQ.
'U'
LOWER = ( SYM.OR.TRI ).AND.UPLO.EQ.
'L'
UNIT = TRI.AND.DIAG.EQ.
'U'
*
* Generate
data in array A.
*
DO 20 J = 1, N
DO 10 I = 1, M
IF( GEN.OR.( UPPER.AND.I.LE.J ).OR.( LOWER.AND.I.GE.J ) )
$
THEN
IF( ( I.LE.J.AND.J - I.LE.KU ).OR.
$ ( I.GE.J.AND.I - J.LE.KL ) )
THEN
A( I, J ) = SBEG( RESET ) + TRANSL
ELSE
A( I, J ) = ZERO
END IF
IF( I.NE.J )
THEN
IF( SYM )
THEN
A( J, I ) = A( I, J )
ELSE IF( TRI )
THEN
A( J, I ) = ZERO
END IF
END IF
END IF
10
CONTINUE
IF( TRI )
$ A( J, J ) = A( J, J ) + ONE
IF(
UNIT )
$ A( J, J ) = ONE
20
CONTINUE
*
* Store elements
in array AS
in data structure required by routine.
*
IF(
TYPE.EQ.
'GE' )
THEN
DO 50 J = 1, N
DO 30 I = 1, M
AA( I + ( J - 1 )*LDA ) = A( I, J )
30
CONTINUE
DO 40 I = M + 1, LDA
AA( I + ( J - 1 )*LDA ) = ROGUE
40
CONTINUE
50
CONTINUE
ELSE IF(
TYPE.EQ.
'GB' )
THEN
DO 90 J = 1, N
DO 60 I1 = 1, KU + 1 - J
AA( I1 + ( J - 1 )*LDA ) = ROGUE
60
CONTINUE
DO 70 I2 = I1, MIN( KL + KU + 1, KU + 1 + M - J )
AA( I2 + ( J - 1 )*LDA ) = A( I2 + J - KU - 1, J )
70
CONTINUE
DO 80 I3 = I2, LDA
AA( I3 + ( J - 1 )*LDA ) = ROGUE
80
CONTINUE
90
CONTINUE
ELSE IF(
TYPE.EQ.
'SY'.OR.
TYPE.EQ.
'TR' )
THEN
DO 130 J = 1, N
IF( UPPER )
THEN
IBEG = 1
IF(
UNIT )
THEN
IEND = J - 1
ELSE
IEND = J
END IF
ELSE
IF(
UNIT )
THEN
IBEG = J + 1
ELSE
IBEG = J
END IF
IEND = N
END IF
DO 100 I = 1, IBEG - 1
AA( I + ( J - 1 )*LDA ) = ROGUE
100
CONTINUE
DO 110 I = IBEG, IEND
AA( I + ( J - 1 )*LDA ) = A( I, J )
110
CONTINUE
DO 120 I = IEND + 1, LDA
AA( I + ( J - 1 )*LDA ) = ROGUE
120
CONTINUE
130
CONTINUE
ELSE IF(
TYPE.EQ.
'SB'.OR.
TYPE.EQ.
'TB' )
THEN
DO 170 J = 1, N
IF( UPPER )
THEN
KK = KL + 1
IBEG = MAX( 1, KL + 2 - J )
IF(
UNIT )
THEN
IEND = KL
ELSE
IEND = KL + 1
END IF
ELSE
KK = 1
IF(
UNIT )
THEN
IBEG = 2
ELSE
IBEG = 1
END IF
IEND = MIN( KL + 1, 1 + M - J )
END IF
DO 140 I = 1, IBEG - 1
AA( I + ( J - 1 )*LDA ) = ROGUE
140
CONTINUE
DO 150 I = IBEG, IEND
AA( I + ( J - 1 )*LDA ) = A( I + J - KK, J )
150
CONTINUE
DO 160 I = IEND + 1, LDA
AA( I + ( J - 1 )*LDA ) = ROGUE
160
CONTINUE
170
CONTINUE
ELSE IF(
TYPE.EQ.
'SP'.OR.
TYPE.EQ.
'TP' )
THEN
IOFF = 0
DO 190 J = 1, N
IF( UPPER )
THEN
IBEG = 1
IEND = J
ELSE
IBEG = J
IEND = N
END IF
DO 180 I = IBEG, IEND
IOFF = IOFF + 1
AA( IOFF ) = A( I, J )
IF( I.EQ.J )
THEN
IF(
UNIT )
$ AA( IOFF ) = ROGUE
END IF
180
CONTINUE
190
CONTINUE
END IF
RETURN
*
*
End of SMAKE.
*
END
SUBROUTINE SMVCH( TRANS, M, N, ALPHA, A, NMAX, X, INCX, BETA, Y,
$ INCY, YT, G, YY, EPS,
ERR, FATAL, NOUT, MV )
*
* Checks the results of the computational tests.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Parameters ..
REAL ZERO, ONE
PARAMETER ( ZERO = 0.0, ONE = 1.0 )
* .. Scalar Arguments ..
REAL ALPHA, BETA, EPS,
ERR
INTEGER INCX, INCY, M, N, NMAX, NOUT
LOGICAL FATAL, MV
CHARACTER*1 TRANS
* .. Array Arguments ..
REAL A( NMAX, * ), G( * ), X( * ), Y( * ), YT( * ),
$ YY( * )
* .. Local Scalars ..
REAL ERRI
INTEGER I, INCXL, INCYL, IY, J, JX, KX, KY, ML, NL
LOGICAL TRAN
* ..
Intrinsic Functions ..
INTRINSIC ABS, MAX, SQRT
* .. Executable Statements ..
TRAN = TRANS.EQ.
'T'.OR.TRANS.EQ.
'C'
IF( TRAN )
THEN
ML = N
NL = M
ELSE
ML = M
NL = N
END IF
IF( INCX.LT.0 )
THEN
KX = NL
INCXL = -1
ELSE
KX = 1
INCXL = 1
END IF
IF( INCY.LT.0 )
THEN
KY = ML
INCYL = -1
ELSE
KY = 1
INCYL = 1
END IF
*
* Compute expected result
in YT using
data in A, X and Y.
* Compute gauges
in G.
*
IY = KY
DO 30 I = 1, ML
YT( IY ) = ZERO
G( IY ) = ZERO
JX = KX
IF( TRAN )
THEN
DO 10 J = 1, NL
YT( IY ) = YT( IY ) + A( J, I )*X( JX )
G( IY ) = G( IY ) + ABS( A( J, I )*X( JX ) )
JX = JX + INCXL
10
CONTINUE
ELSE
DO 20 J = 1, NL
YT( IY ) = YT( IY ) + A( I, J )*X( JX )
G( IY ) = G( IY ) + ABS( A( I, J )*X( JX ) )
JX = JX + INCXL
20
CONTINUE
END IF
YT( IY ) = ALPHA*YT( IY ) + BETA*Y( IY )
G( IY ) = ABS( ALPHA )*G( IY ) + ABS( BETA*Y( IY ) )
IY = IY + INCYL
30
CONTINUE
*
* Compute the error ratio for this result.
*
ERR = ZERO
DO 40 I = 1, ML
ERRI = ABS( YT( I ) - YY( 1 + ( I - 1 )*ABS( INCY ) ) )/EPS
IF( G( I ).NE.ZERO )
$ ERRI = ERRI/G( I )
ERR = MAX(
ERR, ERRI )
IF(
ERR*SQRT( EPS ).GE.ONE )
$
GO TO 50
40
CONTINUE
*
If the loop completes, all results are at least half accurate.
GO TO 70
*
* Report fatal error.
*
50 FATAL = .
TRUE.
WRITE( NOUT,
FMT = 9999 )
DO 60 I = 1, ML
IF( MV )
THEN
WRITE( NOUT,
FMT = 9998 )I, YT( I ),
$ YY( 1 + ( I - 1 )*ABS( INCY ) )
ELSE
WRITE( NOUT,
FMT = 9998 )I,
$ YY( 1 + ( I - 1 )*ABS( INCY ) ), YT(I)
END IF
60
CONTINUE
*
70
CONTINUE
RETURN
*
9999
FORMAT(
' ******* FATAL ERROR - COMPUTED RESULT IS LESS THAN HAL',
$
'F ACCURATE *******', /
' EXPECTED RESULT COMPU',
$
'TED RESULT' )
9998
FORMAT( 1X, I7, 2G18.6 )
*
*
End of SMVCH.
*
END
LOGICAL FUNCTION LSE( RI, RJ, LR )
*
* Tests
if two arrays are identical.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Scalar Arguments ..
INTEGER LR
* .. Array Arguments ..
REAL RI( * ), RJ( * )
* .. Local Scalars ..
INTEGER I
* .. Executable Statements ..
DO 10 I = 1, LR
IF( RI( I ).NE.RJ( I ) )
$
GO TO 20
10
CONTINUE
LSE = .
TRUE.
GO TO 30
20
CONTINUE
LSE = .
FALSE.
30
RETURN
*
*
End of LSE.
*
END
LOGICAL FUNCTION LSERES(
TYPE, UPLO, M, N, AA, AS, LDA )
*
* Tests
if selected elements
in two arrays are equal.
*
*
TYPE is
'GE',
'SY' or
'SP'.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Scalar Arguments ..
INTEGER LDA, M, N
CHARACTER*1 UPLO
CHARACTER*2
TYPE
* .. Array Arguments ..
REAL AA( LDA, * ), AS( LDA, * )
* .. Local Scalars ..
INTEGER I, IBEG, IEND, J
LOGICAL UPPER
* .. Executable Statements ..
UPPER = UPLO.EQ.
'U'
IF(
TYPE.EQ.
'GE' )
THEN
DO 20 J = 1, N
DO 10 I = M + 1, LDA
IF( AA( I, J ).NE.AS( I, J ) )
$
GO TO 70
10
CONTINUE
20
CONTINUE
ELSE IF(
TYPE.EQ.
'SY' )
THEN
DO 50 J = 1, N
IF( UPPER )
THEN
IBEG = 1
IEND = J
ELSE
IBEG = J
IEND = N
END IF
DO 30 I = 1, IBEG - 1
IF( AA( I, J ).NE.AS( I, J ) )
$
GO TO 70
30
CONTINUE
DO 40 I = IEND + 1, LDA
IF( AA( I, J ).NE.AS( I, J ) )
$
GO TO 70
40
CONTINUE
50
CONTINUE
END IF
*
LSERES = .
TRUE.
GO TO 80
70
CONTINUE
LSERES = .
FALSE.
80
RETURN
*
*
End of LSERES.
*
END
REAL FUNCTION SBEG( RESET )
*
* Generates random numbers uniformly distributed between -0.5 and 0.5.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Scalar Arguments ..
LOGICAL RESET
* .. Local Scalars ..
INTEGER I, IC, MI
* ..
Save statement ..
SAVE I, IC, MI
* ..
Intrinsic Functions ..
INTRINSIC REAL
* .. Executable Statements ..
IF( RESET )
THEN
* Initialize local variables.
MI = 891
I = 7
IC = 0
RESET = .
FALSE.
END IF
*
* The
sequence of values of I is bounded between 1 and 999.
*
If initial I = 1,2,3,6,7 or 9, the period will be 50.
*
If initial I = 4 or 8, the period will be 25.
*
If initial I = 5, the period will be 10.
* IC is used
to break up the period by skipping 1 value of I
in 6.
*
IC = IC + 1
10 I = I*MI
I = I - 1000*( I/1000 )
IF( IC.GE.5 )
THEN
IC = 0
GO TO 10
END IF
SBEG =
REAL( I - 500 )/1001.0
RETURN
*
*
End of SBEG.
*
END
REAL FUNCTION SDIFF( X, Y )
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
*
* .. Scalar Arguments ..
REAL X, Y
* .. Executable Statements ..
SDIFF = X - Y
RETURN
*
*
End of SDIFF.
*
END
SUBROUTINE CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
*
* Tests whether XERBLA has detected an error when it should.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Scalar Arguments ..
INTEGER INFOT, NOUT
LOGICAL LERR, OK
CHARACTER*6 SRNAMT
* .. Executable Statements ..
IF( .NOT.LERR )
THEN
WRITE( NOUT,
FMT = 9999 )INFOT, SRNAMT
OK = .
FALSE.
END IF
LERR = .
FALSE.
RETURN
*
9999
FORMAT(
' ***** ILLEGAL VALUE OF PARAMETER NUMBER ', I2,
' NOT D',
$
'ETECTED BY ', A6,
' *****' )
*
*
End of CHKXER.
*
END
SUBROUTINE XERBLA( SRNAME, INFO )
*
* This is a special version of XERBLA
to be used only as part of
* the test
program for testing error exits from the Level 2 BLAS
* routines.
*
* XERBLA is an error handler for the Level 2 BLAS routines.
*
* It is called by the Level 2 BLAS routines
if an input
parameter is
* invalid.
*
* Auxiliary routine for test
program for Level 2 Blas.
*
* -- Written on 10-August-1987.
* Richard Hanson, Sandia National Labs.
* Jeremy Du Croz, NAG Central Office.
*
* .. Scalar Arguments ..
INTEGER INFO
CHARACTER*6 SRNAME
* .. Scalars
in Common ..
INTEGER INFOT, NOUT
LOGICAL LERR, OK
CHARACTER*6 SRNAMT
* ..
Common blocks ..
COMMON /INFOC/INFOT, NOUT, OK, LERR
COMMON /SRNAMC/SRNAMT
* .. Executable Statements ..
LERR = .
TRUE.
IF( INFO.NE.INFOT )
THEN
IF( INFOT.NE.0 )
THEN
WRITE( NOUT,
FMT = 9999 )INFO, INFOT
ELSE
WRITE( NOUT,
FMT = 9997 )INFO
END IF
OK = .
FALSE.
END IF
IF( SRNAME.NE.SRNAMT )
THEN
WRITE( NOUT,
FMT = 9998 )SRNAME, SRNAMT
OK = .
FALSE.
END IF
RETURN
*
9999
FORMAT(
' ******* XERBLA WAS CALLED WITH INFO = ', I6,
' INSTEAD',
$
' OF ', I2,
' *******' )
9998
FORMAT(
' ******* XERBLA WAS CALLED WITH SRNAME = ', A6,
' INSTE',
$
'AD OF ', A6,
' *******' )
9997
FORMAT(
' ******* XERBLA WAS CALLED WITH INFO = ', I6,
$
' *******' )
*
*
End of XERBLA
*
END
