xref: /external/eigen/blas/testing/dblat3.f

      PROGRAM DBLAT3
*
*  Test program for the DOUBLE PRECISION Level 3 Blas.
*
*  The program must be driven by a short data file. The first 14 records
*  of the file are read using list-directed input, the last 6 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 20 lines:
*  'DBLAT3.SUMM'     NAME OF SUMMARY OUTPUT FILE
*  6                 UNIT NUMBER OF SUMMARY FILE
*  'DBLAT3.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
*  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 1.3       VALUES OF BETA
*  DGEMM  T PUT F FOR NO TEST. SAME COLUMNS.
*  DSYMM  T PUT F FOR NO TEST. SAME COLUMNS.
*  DTRMM  T PUT F FOR NO TEST. SAME COLUMNS.
*  DTRSM  T PUT F FOR NO TEST. SAME COLUMNS.
*  DSYRK  T PUT F FOR NO TEST. SAME COLUMNS.
*  DSYR2K T PUT F FOR NO TEST. SAME COLUMNS.
*
*  See:
*
*     Dongarra J. J., Du Croz J. J., Duff I. S. and Hammarling S.
*     A Set of Level 3 Basic Linear Algebra Subprograms.
*
*     Technical Memorandum No.88 (Revision 1), Mathematics and
*     Computer Science Division, Argonne National Laboratory, 9700
*     South Cass Avenue, Argonne, Illinois 60439, US.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. Parameters ..
      INTEGER            NIN
      PARAMETER          ( NIN = 5 )
      INTEGER            NSUBS
      PARAMETER          ( NSUBS = 6 )
      DOUBLE PRECISION   ZERO, HALF, ONE
      PARAMETER          ( ZERO = 0.0D0, HALF = 0.5D0, ONE = 1.0D0 )
      INTEGER            NMAX
      PARAMETER          ( NMAX = 65 )
      INTEGER            NIDMAX, NALMAX, NBEMAX
      PARAMETER          ( NIDMAX = 9, NALMAX = 7, NBEMAX = 7 )
*     .. Local Scalars ..
      DOUBLE PRECISION   EPS, ERR, THRESH
      INTEGER            I, ISNUM, J, N, NALF, NBET, NIDIM, NOUT, NTRA
      LOGICAL            FATAL, LTESTT, REWI, SAME, SFATAL, TRACE,
     $                   TSTERR
      CHARACTER*1        TRANSA, TRANSB
      CHARACTER*6        SNAMET
      CHARACTER*32       SNAPS, SUMMRY
*     .. Local Arrays ..
      DOUBLE PRECISION   AA( NMAX*NMAX ), AB( NMAX, 2*NMAX ),
     $                   ALF( NALMAX ), AS( NMAX*NMAX ),
     $                   BB( NMAX*NMAX ), BET( NBEMAX ),
     $                   BS( NMAX*NMAX ), C( NMAX, NMAX ),
     $                   CC( NMAX*NMAX ), CS( NMAX*NMAX ), CT( NMAX ),
     $                   G( NMAX ), W( 2*NMAX )
      INTEGER            IDIM( NIDMAX )
      LOGICAL            LTEST( NSUBS )
      CHARACTER*6        SNAMES( NSUBS )
*     .. External Functions ..
      DOUBLE PRECISION   DDIFF
      LOGICAL            LDE
      EXTERNAL           DDIFF, LDE
*     .. External Subroutines ..
      EXTERNAL           DCHK1, DCHK2, DCHK3, DCHK4, DCHK5, DCHKE, DMMCH
*     .. Intrinsic Functions ..
      INTRINSIC          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/'DGEMM ', 'DSYMM ', 'DTRMM ', 'DTRSM ',
     $                   'DSYRK ', 'DSYR2K'/
*     .. 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 = 'NEW' )
      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 = 'NEW' )
      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 220
      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 220
         END IF
   10 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 220
      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 220
      END IF
      READ( NIN, FMT = * )( BET( I ), I = 1, NBET )
*
*     Report values of parameters.
*
      WRITE( NOUT, FMT = 9995 )
      WRITE( NOUT, FMT = 9994 )( IDIM( I ), I = 1, NIDIM )
      WRITE( NOUT, FMT = 9993 )( ALF( I ), I = 1, NALF )
      WRITE( NOUT, FMT = 9992 )( BET( I ), I = 1, NBET )
      IF( .NOT.TSTERR )THEN
         WRITE( NOUT, FMT = * )
         WRITE( NOUT, FMT = 9984 )
      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 20 I = 1, NSUBS
         LTEST( I ) = .FALSE.
   20 CONTINUE
   30 READ( NIN, FMT = 9988, END = 60 )SNAMET, LTESTT
      DO 40 I = 1, NSUBS
         IF( SNAMET.EQ.SNAMES( I ) )
     $      GO TO 50
   40 CONTINUE
      WRITE( NOUT, FMT = 9990 )SNAMET
      STOP
   50 LTEST( I ) = LTESTT
      GO TO 30
*
   60 CONTINUE
      CLOSE ( NIN )
*
*     Compute EPS (the machine precision).
*
      EPS = ONE
   70 CONTINUE
      IF( DDIFF( ONE + EPS, ONE ).EQ.ZERO )
     $   GO TO 80
      EPS = HALF*EPS
      GO TO 70
   80 CONTINUE
      EPS = EPS + EPS
      WRITE( NOUT, FMT = 9998 )EPS
*
*     Check the reliability of DMMCH using exact data.
*
      N = MIN( 32, NMAX )
      DO 100 J = 1, N
         DO 90 I = 1, N
            AB( I, J ) = MAX( I - J + 1, 0 )
   90    CONTINUE
         AB( J, NMAX + 1 ) = J
         AB( 1, NMAX + J ) = J
         C( J, 1 ) = ZERO
  100 CONTINUE
      DO 110 J = 1, N
         CC( J ) = J*( ( J + 1 )*J )/2 - ( ( J + 1 )*J*( J - 1 ) )/3
  110 CONTINUE
*     CC holds the exact result. On exit from DMMCH CT holds
*     the result computed by DMMCH.
      TRANSA = 'N'
      TRANSB = 'N'
      CALL DMMCH( TRANSA, TRANSB, N, 1, N, ONE, AB, NMAX,
     $            AB( 1, NMAX + 1 ), NMAX, ZERO, C, NMAX, CT, G, CC,
     $            NMAX, EPS, ERR, FATAL, NOUT, .TRUE. )
      SAME = LDE( CC, CT, N )
      IF( .NOT.SAME.OR.ERR.NE.ZERO )THEN
         WRITE( NOUT, FMT = 9989 )TRANSA, TRANSB, SAME, ERR
         STOP
      END IF
      TRANSB = 'T'
      CALL DMMCH( TRANSA, TRANSB, N, 1, N, ONE, AB, NMAX,
     $            AB( 1, NMAX + 1 ), NMAX, ZERO, C, NMAX, CT, G, CC,
     $            NMAX, EPS, ERR, FATAL, NOUT, .TRUE. )
      SAME = LDE( CC, CT, N )
      IF( .NOT.SAME.OR.ERR.NE.ZERO )THEN
         WRITE( NOUT, FMT = 9989 )TRANSA, TRANSB, SAME, ERR
         STOP
      END IF
      DO 120 J = 1, N
         AB( J, NMAX + 1 ) = N - J + 1
         AB( 1, NMAX + J ) = N - J + 1
  120 CONTINUE
      DO 130 J = 1, N
         CC( N - J + 1 ) = J*( ( J + 1 )*J )/2 -
     $                     ( ( J + 1 )*J*( J - 1 ) )/3
  130 CONTINUE
      TRANSA = 'T'
      TRANSB = 'N'
      CALL DMMCH( TRANSA, TRANSB, N, 1, N, ONE, AB, NMAX,
     $            AB( 1, NMAX + 1 ), NMAX, ZERO, C, NMAX, CT, G, CC,
     $            NMAX, EPS, ERR, FATAL, NOUT, .TRUE. )
      SAME = LDE( CC, CT, N )
      IF( .NOT.SAME.OR.ERR.NE.ZERO )THEN
         WRITE( NOUT, FMT = 9989 )TRANSA, TRANSB, SAME, ERR
         STOP
      END IF
      TRANSB = 'T'
      CALL DMMCH( TRANSA, TRANSB, N, 1, N, ONE, AB, NMAX,
     $            AB( 1, NMAX + 1 ), NMAX, ZERO, C, NMAX, CT, G, CC,
     $            NMAX, EPS, ERR, FATAL, NOUT, .TRUE. )
      SAME = LDE( CC, CT, N )
      IF( .NOT.SAME.OR.ERR.NE.ZERO )THEN
         WRITE( NOUT, FMT = 9989 )TRANSA, TRANSB, SAME, ERR
         STOP
      END IF
*
*     Test each subroutine in turn.
*
      DO 200 ISNUM = 1, NSUBS
         WRITE( NOUT, FMT = * )
         IF( .NOT.LTEST( ISNUM ) )THEN
*           Subprogram is not to be tested.
            WRITE( NOUT, FMT = 9987 )SNAMES( ISNUM )
         ELSE
            SRNAMT = SNAMES( ISNUM )
*           Test error exits.
            IF( TSTERR )THEN
               CALL DCHKE( ISNUM, SNAMES( ISNUM ), NOUT )
               WRITE( NOUT, FMT = * )
            END IF
*           Test computations.
            INFOT = 0
            OK = .TRUE.
            FATAL = .FALSE.
            GO TO ( 140, 150, 160, 160, 170, 180 )ISNUM
*           Test DGEMM, 01.
  140       CALL DCHK1( SNAMES( ISNUM ), EPS, THRESH, NOUT, NTRA, TRACE,
     $                  REWI, FATAL, NIDIM, IDIM, NALF, ALF, NBET, BET,
     $                  NMAX, AB, AA, AS, AB( 1, NMAX + 1 ), BB, BS, C,
     $                  CC, CS, CT, G )
            GO TO 190
*           Test DSYMM, 02.
  150       CALL DCHK2( SNAMES( ISNUM ), EPS, THRESH, NOUT, NTRA, TRACE,
     $                  REWI, FATAL, NIDIM, IDIM, NALF, ALF, NBET, BET,
     $                  NMAX, AB, AA, AS, AB( 1, NMAX + 1 ), BB, BS, C,
     $                  CC, CS, CT, G )
            GO TO 190
*           Test DTRMM, 03, DTRSM, 04.
  160       CALL DCHK3( SNAMES( ISNUM ), EPS, THRESH, NOUT, NTRA, TRACE,
     $                  REWI, FATAL, NIDIM, IDIM, NALF, ALF, NMAX, AB,
     $                  AA, AS, AB( 1, NMAX + 1 ), BB, BS, CT, G, C )
            GO TO 190
*           Test DSYRK, 05.
  170       CALL DCHK4( SNAMES( ISNUM ), EPS, THRESH, NOUT, NTRA, TRACE,
     $                  REWI, FATAL, NIDIM, IDIM, NALF, ALF, NBET, BET,
     $                  NMAX, AB, AA, AS, AB( 1, NMAX + 1 ), BB, BS, C,
     $                  CC, CS, CT, G )
            GO TO 190
*           Test DSYR2K, 06.
  180       CALL DCHK5( SNAMES( ISNUM ), EPS, THRESH, NOUT, NTRA, TRACE,
     $                  REWI, FATAL, NIDIM, IDIM, NALF, ALF, NBET, BET,
     $                  NMAX, AB, AA, AS, BB, BS, C, CC, CS, CT, G, W )
            GO TO 190
*
  190       IF( FATAL.AND.SFATAL )
     $         GO TO 210
         END IF
  200 CONTINUE
      WRITE( NOUT, FMT = 9986 )
      GO TO 230
*
  210 CONTINUE
      WRITE( NOUT, FMT = 9985 )
      GO TO 230
*
  220 CONTINUE
      WRITE( NOUT, FMT = 9991 )
*
  230 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, D9.1 )
 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( ' TESTS OF THE DOUBLE PRECISION LEVEL 3 BLAS', //' THE F',
     $      'OLLOWING PARAMETER VALUES WILL BE USED:' )
 9994 FORMAT( '   FOR N              ', 9I6 )
 9993 FORMAT( '   FOR ALPHA          ', 7F6.1 )
 9992 FORMAT( '   FOR BETA           ', 7F6.1 )
 9991 FORMAT( ' AMEND DATA FILE OR INCREASE ARRAY SIZES IN PROGRAM',
     $      /' ******* TESTS ABANDONED *******' )
 9990 FORMAT( ' SUBPROGRAM NAME ', A6, ' NOT RECOGNIZED', /' ******* T',
     $      'ESTS ABANDONED *******' )
 9989 FORMAT( ' ERROR IN DMMCH -  IN-LINE DOT PRODUCTS ARE BEING EVALU',
     $      'ATED WRONGLY.', /' DMMCH WAS CALLED WITH TRANSA = ', A1,
     $      ' AND TRANSB = ', A1, /' AND RETURNED SAME = ', L1, ' AND ',
     $      'ERR = ', F12.3, '.', /' THIS MAY BE DUE TO FAULTS IN THE ',
     $      'ARITHMETIC OR THE COMPILER.', /' ******* TESTS ABANDONED ',
     $      '*******' )
 9988 FORMAT( A6, L2 )
 9987 FORMAT( 1X, A6, ' WAS NOT TESTED' )
 9986 FORMAT( /' END OF TESTS' )
 9985 FORMAT( /' ******* FATAL ERROR - TESTS ABANDONED *******' )
 9984 FORMAT( ' ERROR-EXITS WILL NOT BE TESTED' )
*
*     End of DBLAT3.
*
      END
      SUBROUTINE DCHK1( SNAME, EPS, THRESH, NOUT, NTRA, TRACE, REWI,
     $                  FATAL, NIDIM, IDIM, NALF, ALF, NBET, BET, NMAX,
     $                  A, AA, AS, B, BB, BS, C, CC, CS, CT, G )
*
*  Tests DGEMM.
*
*  Auxiliary routine for test program for Level 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. Parameters ..
      DOUBLE PRECISION   ZERO
      PARAMETER          ( ZERO = 0.0D0 )
*     .. Scalar Arguments ..
      DOUBLE PRECISION   EPS, THRESH
      INTEGER            NALF, NBET, NIDIM, NMAX, NOUT, NTRA
      LOGICAL            FATAL, REWI, TRACE
      CHARACTER*6        SNAME
*     .. Array Arguments ..
      DOUBLE PRECISION   A( NMAX, NMAX ), AA( NMAX*NMAX ), ALF( NALF ),
     $                   AS( NMAX*NMAX ), B( NMAX, NMAX ),
     $                   BB( NMAX*NMAX ), BET( NBET ), BS( NMAX*NMAX ),
     $                   C( NMAX, NMAX ), CC( NMAX*NMAX ),
     $                   CS( NMAX*NMAX ), CT( NMAX ), G( NMAX )
      INTEGER            IDIM( NIDIM )
*     .. Local Scalars ..
      DOUBLE PRECISION   ALPHA, ALS, BETA, BLS, ERR, ERRMAX
      INTEGER            I, IA, IB, ICA, ICB, IK, IM, IN, K, KS, LAA,
     $                   LBB, LCC, LDA, LDAS, LDB, LDBS, LDC, LDCS, M,
     $                   MA, MB, MS, N, NA, NARGS, NB, NC, NS
      LOGICAL            NULL, RESET, SAME, TRANA, TRANB
      CHARACTER*1        TRANAS, TRANBS, TRANSA, TRANSB
      CHARACTER*3        ICH
*     .. Local Arrays ..
      LOGICAL            ISAME( 13 )
*     .. External Functions ..
      LOGICAL            LDE, LDERES
      EXTERNAL           LDE, LDERES
*     .. External Subroutines ..
      EXTERNAL           DGEMM, DMAKE, DMMCH
*     .. Intrinsic Functions ..
      INTRINSIC          MAX
*     .. Scalars in Common ..
      INTEGER            INFOT, NOUTC
      LOGICAL            LERR, OK
*     .. Common blocks ..
      COMMON             /INFOC/INFOT, NOUTC, OK, LERR
*     .. Data statements ..
      DATA               ICH/'NTC'/
*     .. Executable Statements ..
*
      NARGS = 13
      NC = 0
      RESET = .TRUE.
      ERRMAX = ZERO
*
      DO 110 IM = 1, NIDIM
         M = IDIM( IM )
*
         DO 100 IN = 1, NIDIM
            N = IDIM( IN )
*           Set LDC to 1 more than minimum value if room.
            LDC = M
            IF( LDC.LT.NMAX )
     $         LDC = LDC + 1
*           Skip tests if not enough room.
            IF( LDC.GT.NMAX )
     $         GO TO 100
            LCC = LDC*N
            NULL = N.LE.0.OR.M.LE.0
*
            DO 90 IK = 1, NIDIM
               K = IDIM( IK )
*
               DO 80 ICA = 1, 3
                  TRANSA = ICH( ICA: ICA )
                  TRANA = TRANSA.EQ.'T'.OR.TRANSA.EQ.'C'
*
                  IF( TRANA )THEN
                     MA = K
                     NA = M
                  ELSE
                     MA = M
                     NA = K
                  END IF
*                 Set LDA to 1 more than minimum value if room.
                  LDA = MA
                  IF( LDA.LT.NMAX )
     $               LDA = LDA + 1
*                 Skip tests if not enough room.
                  IF( LDA.GT.NMAX )
     $               GO TO 80
                  LAA = LDA*NA
*
*                 Generate the matrix A.
*
                  CALL DMAKE( 'GE', ' ', ' ', MA, NA, A, NMAX, AA, LDA,
     $                        RESET, ZERO )
*
                  DO 70 ICB = 1, 3
                     TRANSB = ICH( ICB: ICB )
                     TRANB = TRANSB.EQ.'T'.OR.TRANSB.EQ.'C'
*
                     IF( TRANB )THEN
                        MB = N
                        NB = K
                     ELSE
                        MB = K
                        NB = N
                     END IF
*                    Set LDB to 1 more than minimum value if room.
                     LDB = MB
                     IF( LDB.LT.NMAX )
     $                  LDB = LDB + 1
*                    Skip tests if not enough room.
                     IF( LDB.GT.NMAX )
     $                  GO TO 70
                     LBB = LDB*NB
*
*                    Generate the matrix B.
*
                     CALL DMAKE( 'GE', ' ', ' ', MB, NB, B, NMAX, BB,
     $                           LDB, RESET, ZERO )
*
                     DO 60 IA = 1, NALF
                        ALPHA = ALF( IA )
*
                        DO 50 IB = 1, NBET
                           BETA = BET( IB )
*
*                          Generate the matrix C.
*
                           CALL DMAKE( 'GE', ' ', ' ', M, N, C, NMAX,
     $                                 CC, LDC, RESET, ZERO )
*
                           NC = NC + 1
*
*                          Save every datum before calling the
*                          subroutine.
*
                           TRANAS = TRANSA
                           TRANBS = TRANSB
                           MS = M
                           NS = N
                           KS = K
                           ALS = ALPHA
                           DO 10 I = 1, LAA
                              AS( I ) = AA( I )
   10                      CONTINUE
                           LDAS = LDA
                           DO 20 I = 1, LBB
                              BS( I ) = BB( I )
   20                      CONTINUE
                           LDBS = LDB
                           BLS = BETA
                           DO 30 I = 1, LCC
                              CS( I ) = CC( I )
   30                      CONTINUE
                           LDCS = LDC
*
*                          Call the subroutine.
*
                           IF( TRACE )
     $                        WRITE( NTRA, FMT = 9995 )NC, SNAME,
     $                        TRANSA, TRANSB, M, N, K, ALPHA, LDA, LDB,
     $                        BETA, LDC
                           IF( REWI )
     $                        REWIND NTRA
                           CALL DGEMM( TRANSA, TRANSB, M, N, K, ALPHA,
     $                                 AA, LDA, BB, LDB, BETA, CC, LDC )
*
*                          Check if error-exit was taken incorrectly.
*
                           IF( .NOT.OK )THEN
                              WRITE( NOUT, FMT = 9994 )
                              FATAL = .TRUE.
                              GO TO 120
                           END IF
*
*                          See what data changed inside subroutines.
*
                           ISAME( 1 ) = TRANSA.EQ.TRANAS
                           ISAME( 2 ) = TRANSB.EQ.TRANBS
                           ISAME( 3 ) = MS.EQ.M
                           ISAME( 4 ) = NS.EQ.N
                           ISAME( 5 ) = KS.EQ.K
                           ISAME( 6 ) = ALS.EQ.ALPHA
                           ISAME( 7 ) = LDE( AS, AA, LAA )
                           ISAME( 8 ) = LDAS.EQ.LDA
                           ISAME( 9 ) = LDE( BS, BB, LBB )
                           ISAME( 10 ) = LDBS.EQ.LDB
                           ISAME( 11 ) = BLS.EQ.BETA
                           IF( NULL )THEN
                              ISAME( 12 ) = LDE( CS, CC, LCC )
                           ELSE
                              ISAME( 12 ) = LDERES( 'GE', ' ', M, N, CS,
     $                                      CC, LDC )
                           END IF
                           ISAME( 13 ) = LDCS.EQ.LDC
*
*                          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 DMMCH( TRANSA, TRANSB, M, N, K,
     $                                    ALPHA, A, NMAX, B, NMAX, BETA,
     $                                    C, NMAX, CT, G, CC, LDC, EPS,
     $                                    ERR, FATAL, NOUT, .TRUE. )
                              ERRMAX = MAX( ERRMAX, ERR )
*                             If got really bad answer, report and
*                             return.
                              IF( FATAL )
     $                           GO TO 120
                           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
      WRITE( NOUT, FMT = 9995 )NC, SNAME, TRANSA, TRANSB, M, N, K,
     $   ALPHA, LDA, LDB, BETA, LDC
*
  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, ''',''', A1, ''',',
     $      3( I3, ',' ), F4.1, ', A,', I3, ', B,', I3, ',', F4.1, ', ',
     $      'C,', I3, ').' )
 9994 FORMAT( ' ******* FATAL ERROR - ERROR-EXIT TAKEN ON VALID CALL *',
     $      '******' )
*
*     End of DCHK1.
*
      END
      SUBROUTINE DCHK2( SNAME, EPS, THRESH, NOUT, NTRA, TRACE, REWI,
     $                  FATAL, NIDIM, IDIM, NALF, ALF, NBET, BET, NMAX,
     $                  A, AA, AS, B, BB, BS, C, CC, CS, CT, G )
*
*  Tests DSYMM.
*
*  Auxiliary routine for test program for Level 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. Parameters ..
      DOUBLE PRECISION   ZERO
      PARAMETER          ( ZERO = 0.0D0 )
*     .. Scalar Arguments ..
      DOUBLE PRECISION   EPS, THRESH
      INTEGER            NALF, NBET, NIDIM, NMAX, NOUT, NTRA
      LOGICAL            FATAL, REWI, TRACE
      CHARACTER*6        SNAME
*     .. Array Arguments ..
      DOUBLE PRECISION   A( NMAX, NMAX ), AA( NMAX*NMAX ), ALF( NALF ),
     $                   AS( NMAX*NMAX ), B( NMAX, NMAX ),
     $                   BB( NMAX*NMAX ), BET( NBET ), BS( NMAX*NMAX ),
     $                   C( NMAX, NMAX ), CC( NMAX*NMAX ),
     $                   CS( NMAX*NMAX ), CT( NMAX ), G( NMAX )
      INTEGER            IDIM( NIDIM )
*     .. Local Scalars ..
      DOUBLE PRECISION   ALPHA, ALS, BETA, BLS, ERR, ERRMAX
      INTEGER            I, IA, IB, ICS, ICU, IM, IN, LAA, LBB, LCC,
     $                   LDA, LDAS, LDB, LDBS, LDC, LDCS, M, MS, N, NA,
     $                   NARGS, NC, NS
      LOGICAL            LEFT, NULL, RESET, SAME
      CHARACTER*1        SIDE, SIDES, UPLO, UPLOS
      CHARACTER*2        ICHS, ICHU
*     .. Local Arrays ..
      LOGICAL            ISAME( 13 )
*     .. External Functions ..
      LOGICAL            LDE, LDERES
      EXTERNAL           LDE, LDERES
*     .. External Subroutines ..
      EXTERNAL           DMAKE, DMMCH, DSYMM
*     .. Intrinsic Functions ..
      INTRINSIC          MAX
*     .. Scalars in Common ..
      INTEGER            INFOT, NOUTC
      LOGICAL            LERR, OK
*     .. Common blocks ..
      COMMON             /INFOC/INFOT, NOUTC, OK, LERR
*     .. Data statements ..
      DATA               ICHS/'LR'/, ICHU/'UL'/
*     .. Executable Statements ..
*
      NARGS = 12
      NC = 0
      RESET = .TRUE.
      ERRMAX = ZERO
*
      DO 100 IM = 1, NIDIM
         M = IDIM( IM )
*
         DO 90 IN = 1, NIDIM
            N = IDIM( IN )
*           Set LDC to 1 more than minimum value if room.
            LDC = M
            IF( LDC.LT.NMAX )
     $         LDC = LDC + 1
*           Skip tests if not enough room.
            IF( LDC.GT.NMAX )
     $         GO TO 90
            LCC = LDC*N
            NULL = N.LE.0.OR.M.LE.0
*
*           Set LDB to 1 more than minimum value if room.
            LDB = M
            IF( LDB.LT.NMAX )
     $         LDB = LDB + 1
*           Skip tests if not enough room.
            IF( LDB.GT.NMAX )
     $         GO TO 90
            LBB = LDB*N
*
*           Generate the matrix B.
*
            CALL DMAKE( 'GE', ' ', ' ', M, N, B, NMAX, BB, LDB, RESET,
     $                  ZERO )
*
            DO 80 ICS = 1, 2
               SIDE = ICHS( ICS: ICS )
               LEFT = SIDE.EQ.'L'
*
               IF( LEFT )THEN
                  NA = M
               ELSE
                  NA = N
               END IF
*              Set LDA to 1 more than minimum value if room.
               LDA = NA
               IF( LDA.LT.NMAX )
     $            LDA = LDA + 1
*              Skip tests if not enough room.
               IF( LDA.GT.NMAX )
     $            GO TO 80
               LAA = LDA*NA
*
               DO 70 ICU = 1, 2
                  UPLO = ICHU( ICU: ICU )
*
*                 Generate the symmetric matrix A.
*
                  CALL DMAKE( 'SY', UPLO, ' ', NA, NA, A, NMAX, AA, LDA,
     $                        RESET, ZERO )
*
                  DO 60 IA = 1, NALF
                     ALPHA = ALF( IA )
*
                     DO 50 IB = 1, NBET
                        BETA = BET( IB )
*
*                       Generate the matrix C.
*
                        CALL DMAKE( 'GE', ' ', ' ', M, N, C, NMAX, CC,
     $                              LDC, RESET, ZERO )
*
                        NC = NC + 1
*
*                       Save every datum before calling the
*                       subroutine.
*
                        SIDES = SIDE
                        UPLOS = UPLO
                        MS = M
                        NS = N
                        ALS = ALPHA
                        DO 10 I = 1, LAA
                           AS( I ) = AA( I )
   10                   CONTINUE
                        LDAS = LDA
                        DO 20 I = 1, LBB
                           BS( I ) = BB( I )
   20                   CONTINUE
                        LDBS = LDB
                        BLS = BETA
                        DO 30 I = 1, LCC
                           CS( I ) = CC( I )
   30                   CONTINUE
                        LDCS = LDC
*
*                       Call the subroutine.
*
                        IF( TRACE )
     $                     WRITE( NTRA, FMT = 9995 )NC, SNAME, SIDE,
     $                     UPLO, M, N, ALPHA, LDA, LDB, BETA, LDC
                        IF( REWI )
     $                     REWIND NTRA
                        CALL DSYMM( SIDE, UPLO, M, N, ALPHA, AA, LDA,
     $                              BB, LDB, BETA, CC, LDC )
*
*                       Check if error-exit was taken incorrectly.
*
                        IF( .NOT.OK )THEN
                           WRITE( NOUT, FMT = 9994 )
                           FATAL = .TRUE.
                           GO TO 110
                        END IF
*
*                       See what data changed inside subroutines.
*
                        ISAME( 1 ) = SIDES.EQ.SIDE
                        ISAME( 2 ) = UPLOS.EQ.UPLO
                        ISAME( 3 ) = MS.EQ.M
                        ISAME( 4 ) = NS.EQ.N
                        ISAME( 5 ) = ALS.EQ.ALPHA
                        ISAME( 6 ) = LDE( AS, AA, LAA )
                        ISAME( 7 ) = LDAS.EQ.LDA
                        ISAME( 8 ) = LDE( BS, BB, LBB )
                        ISAME( 9 ) = LDBS.EQ.LDB
                        ISAME( 10 ) = BLS.EQ.BETA
                        IF( NULL )THEN
                           ISAME( 11 ) = LDE( CS, CC, LCC )
                        ELSE
                           ISAME( 11 ) = LDERES( 'GE', ' ', M, N, CS,
     $                                   CC, LDC )
                        END IF
                        ISAME( 12 ) = LDCS.EQ.LDC
*
*                       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 110
                        END IF
*
                        IF( .NOT.NULL )THEN
*
*                          Check the result.
*
                           IF( LEFT )THEN
                              CALL DMMCH( 'N', 'N', M, N, M, ALPHA, A,
     $                                    NMAX, B, NMAX, BETA, C, NMAX,
     $                                    CT, G, CC, LDC, EPS, ERR,
     $                                    FATAL, NOUT, .TRUE. )
                           ELSE
                              CALL DMMCH( 'N', 'N', M, N, N, ALPHA, B,
     $                                    NMAX, A, NMAX, BETA, C, NMAX,
     $                                    CT, G, CC, LDC, EPS, ERR,
     $                                    FATAL, NOUT, .TRUE. )
                           END IF
                           ERRMAX = MAX( ERRMAX, ERR )
*                          If got really bad answer, report and
*                          return.
                           IF( FATAL )
     $                        GO TO 110
                        END IF
*
   50                CONTINUE
*
   60             CONTINUE
*
   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 120
*
  110 CONTINUE
      WRITE( NOUT, FMT = 9996 )SNAME
      WRITE( NOUT, FMT = 9995 )NC, SNAME, SIDE, UPLO, M, N, ALPHA, LDA,
     $   LDB, BETA, LDC
*
  120 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, '(', 2( '''', A1, ''',' ), 2( I3, ',' ),
     $      F4.1, ', A,', I3, ', B,', I3, ',', F4.1, ', C,', I3, ')   ',
     $      ' .' )
 9994 FORMAT( ' ******* FATAL ERROR - ERROR-EXIT TAKEN ON VALID CALL *',
     $      '******' )
*
*     End of DCHK2.
*
      END
      SUBROUTINE DCHK3( SNAME, EPS, THRESH, NOUT, NTRA, TRACE, REWI,
     $                  FATAL, NIDIM, IDIM, NALF, ALF, NMAX, A, AA, AS,
     $                  B, BB, BS, CT, G, C )
*
*  Tests DTRMM and DTRSM.
*
*  Auxiliary routine for test program for Level 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. Parameters ..
      DOUBLE PRECISION   ZERO, ONE
      PARAMETER          ( ZERO = 0.0D0, ONE = 1.0D0 )
*     .. Scalar Arguments ..
      DOUBLE PRECISION   EPS, THRESH
      INTEGER            NALF, NIDIM, NMAX, NOUT, NTRA
      LOGICAL            FATAL, REWI, TRACE
      CHARACTER*6        SNAME
*     .. Array Arguments ..
      DOUBLE PRECISION   A( NMAX, NMAX ), AA( NMAX*NMAX ), ALF( NALF ),
     $                   AS( NMAX*NMAX ), B( NMAX, NMAX ),
     $                   BB( NMAX*NMAX ), BS( NMAX*NMAX ),
     $                   C( NMAX, NMAX ), CT( NMAX ), G( NMAX )
      INTEGER            IDIM( NIDIM )
*     .. Local Scalars ..
      DOUBLE PRECISION   ALPHA, ALS, ERR, ERRMAX
      INTEGER            I, IA, ICD, ICS, ICT, ICU, IM, IN, J, LAA, LBB,
     $                   LDA, LDAS, LDB, LDBS, M, MS, N, NA, NARGS, NC,
     $                   NS
      LOGICAL            LEFT, NULL, RESET, SAME
      CHARACTER*1        DIAG, DIAGS, SIDE, SIDES, TRANAS, TRANSA, UPLO,
     $                   UPLOS
      CHARACTER*2        ICHD, ICHS, ICHU
      CHARACTER*3        ICHT
*     .. Local Arrays ..
      LOGICAL            ISAME( 13 )
*     .. External Functions ..
      LOGICAL            LDE, LDERES
      EXTERNAL           LDE, LDERES
*     .. External Subroutines ..
      EXTERNAL           DMAKE, DMMCH, DTRMM, DTRSM
*     .. Intrinsic Functions ..
      INTRINSIC          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'/, ICHS/'LR'/
*     .. Executable Statements ..
*
      NARGS = 11
      NC = 0
      RESET = .TRUE.
      ERRMAX = ZERO
*     Set up zero matrix for DMMCH.
      DO 20 J = 1, NMAX
         DO 10 I = 1, NMAX
            C( I, J ) = ZERO
   10    CONTINUE
   20 CONTINUE
*
      DO 140 IM = 1, NIDIM
         M = IDIM( IM )
*
         DO 130 IN = 1, NIDIM
            N = IDIM( IN )
*           Set LDB to 1 more than minimum value if room.
            LDB = M
            IF( LDB.LT.NMAX )
     $         LDB = LDB + 1
*           Skip tests if not enough room.
            IF( LDB.GT.NMAX )
     $         GO TO 130
            LBB = LDB*N
            NULL = M.LE.0.OR.N.LE.0
*
            DO 120 ICS = 1, 2
               SIDE = ICHS( ICS: ICS )
               LEFT = SIDE.EQ.'L'
               IF( LEFT )THEN
                  NA = M
               ELSE
                  NA = N
               END IF
*              Set LDA to 1 more than minimum value if room.
               LDA = NA
               IF( LDA.LT.NMAX )
     $            LDA = LDA + 1
*              Skip tests if not enough room.
               IF( LDA.GT.NMAX )
     $            GO TO 130
               LAA = LDA*NA
*
               DO 110 ICU = 1, 2
                  UPLO = ICHU( ICU: ICU )
*
                  DO 100 ICT = 1, 3
                     TRANSA = ICHT( ICT: ICT )
*
                     DO 90 ICD = 1, 2
                        DIAG = ICHD( ICD: ICD )
*
                        DO 80 IA = 1, NALF
                           ALPHA = ALF( IA )
*
*                          Generate the matrix A.
*
                           CALL DMAKE( 'TR', UPLO, DIAG, NA, NA, A,
     $                                 NMAX, AA, LDA, RESET, ZERO )
*
*                          Generate the matrix B.
*
                           CALL DMAKE( 'GE', ' ', ' ', M, N, B, NMAX,
     $                                 BB, LDB, RESET, ZERO )
*
                           NC = NC + 1
*
*                          Save every datum before calling the
*                          subroutine.
*
                           SIDES = SIDE
                           UPLOS = UPLO
                           TRANAS = TRANSA
                           DIAGS = DIAG
                           MS = M
                           NS = N
                           ALS = ALPHA
                           DO 30 I = 1, LAA
                              AS( I ) = AA( I )
   30                      CONTINUE
                           LDAS = LDA
                           DO 40 I = 1, LBB
                              BS( I ) = BB( I )
   40                      CONTINUE
                           LDBS = LDB
*
*                          Call the subroutine.
*
                           IF( SNAME( 4: 5 ).EQ.'MM' )THEN
                              IF( TRACE )
     $                           WRITE( NTRA, FMT = 9995 )NC, SNAME,
     $                           SIDE, UPLO, TRANSA, DIAG, M, N, ALPHA,
     $                           LDA, LDB
                              IF( REWI )
     $                           REWIND NTRA
                              CALL DTRMM( SIDE, UPLO, TRANSA, DIAG, M,
     $                                    N, ALPHA, AA, LDA, BB, LDB )
                           ELSE IF( SNAME( 4: 5 ).EQ.'SM' )THEN
                              IF( TRACE )
     $                           WRITE( NTRA, FMT = 9995 )NC, SNAME,
     $                           SIDE, UPLO, TRANSA, DIAG, M, N, ALPHA,
     $                           LDA, LDB
                              IF( REWI )
     $                           REWIND NTRA
                              CALL DTRSM( SIDE, UPLO, TRANSA, DIAG, M,
     $                                    N, ALPHA, AA, LDA, BB, LDB )
                           END IF
*
*                          Check if error-exit was taken incorrectly.
*
                           IF( .NOT.OK )THEN
                              WRITE( NOUT, FMT = 9994 )
                              FATAL = .TRUE.
                              GO TO 150
                           END IF
*
*                          See what data changed inside subroutines.
*
                           ISAME( 1 ) = SIDES.EQ.SIDE
                           ISAME( 2 ) = UPLOS.EQ.UPLO
                           ISAME( 3 ) = TRANAS.EQ.TRANSA
                           ISAME( 4 ) = DIAGS.EQ.DIAG
                           ISAME( 5 ) = MS.EQ.M
                           ISAME( 6 ) = NS.EQ.N
                           ISAME( 7 ) = ALS.EQ.ALPHA
                           ISAME( 8 ) = LDE( AS, AA, LAA )
                           ISAME( 9 ) = LDAS.EQ.LDA
                           IF( NULL )THEN
                              ISAME( 10 ) = LDE( BS, BB, LBB )
                           ELSE
                              ISAME( 10 ) = LDERES( 'GE', ' ', M, N, BS,
     $                                      BB, LDB )
                           END IF
                           ISAME( 11 ) = LDBS.EQ.LDB
*
*                          If data was incorrectly changed, report and
*                          return.
*
                           SAME = .TRUE.
                           DO 50 I = 1, NARGS
                              SAME = SAME.AND.ISAME( I )
                              IF( .NOT.ISAME( I ) )
     $                           WRITE( NOUT, FMT = 9998 )I
   50                      CONTINUE
                           IF( .NOT.SAME )THEN
                              FATAL = .TRUE.
                              GO TO 150
                           END IF
*
                           IF( .NOT.NULL )THEN
                              IF( SNAME( 4: 5 ).EQ.'MM' )THEN
*
*                                Check the result.
*
                                 IF( LEFT )THEN
                                    CALL DMMCH( TRANSA, 'N', M, N, M,
     $                                          ALPHA, A, NMAX, B, NMAX,
     $                                          ZERO, C, NMAX, CT, G,
     $                                          BB, LDB, EPS, ERR,
     $                                          FATAL, NOUT, .TRUE. )
                                 ELSE
                                    CALL DMMCH( 'N', TRANSA, M, N, N,
     $                                          ALPHA, B, NMAX, A, NMAX,
     $                                          ZERO, C, NMAX, CT, G,
     $                                          BB, LDB, EPS, ERR,
     $                                          FATAL, NOUT, .TRUE. )
                                 END IF
                              ELSE IF( SNAME( 4: 5 ).EQ.'SM' )THEN
*
*                                Compute approximation to original
*                                matrix.
*
                                 DO 70 J = 1, N
                                    DO 60 I = 1, M
                                       C( I, J ) = BB( I + ( J - 1 )*
     $                                             LDB )
                                       BB( I + ( J - 1 )*LDB ) = ALPHA*
     $                                    B( I, J )
   60                               CONTINUE
   70                            CONTINUE
*
                                 IF( LEFT )THEN
                                    CALL DMMCH( TRANSA, 'N', M, N, M,
     $                                          ONE, A, NMAX, C, NMAX,
     $                                          ZERO, B, NMAX, CT, G,
     $                                          BB, LDB, EPS, ERR,
     $                                          FATAL, NOUT, .FALSE. )
                                 ELSE
                                    CALL DMMCH( 'N', TRANSA, M, N, N,
     $                                          ONE, C, NMAX, A, NMAX,
     $                                          ZERO, B, NMAX, CT, G,
     $                                          BB, LDB, EPS, ERR,
     $                                          FATAL, NOUT, .FALSE. )
                                 END IF
                              END IF
                              ERRMAX = MAX( ERRMAX, ERR )
*                             If got really bad answer, report and
*                             return.
                              IF( FATAL )
     $                           GO TO 150
                           END IF
*
   80                   CONTINUE
*
   90                CONTINUE
*
  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 160
*
  150 CONTINUE
      WRITE( NOUT, FMT = 9996 )SNAME
      WRITE( NOUT, FMT = 9995 )NC, SNAME, SIDE, UPLO, TRANSA, DIAG, M,
     $   N, ALPHA, LDA, LDB
*
  160 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, '(', 4( '''', A1, ''',' ), 2( I3, ',' ),
     $      F4.1, ', A,', I3, ', B,', I3, ')        .' )
 9994 FORMAT( ' ******* FATAL ERROR - ERROR-EXIT TAKEN ON VALID CALL *',
     $      '******' )
*
*     End of DCHK3.
*
      END
      SUBROUTINE DCHK4( SNAME, EPS, THRESH, NOUT, NTRA, TRACE, REWI,
     $                  FATAL, NIDIM, IDIM, NALF, ALF, NBET, BET, NMAX,
     $                  A, AA, AS, B, BB, BS, C, CC, CS, CT, G )
*
*  Tests DSYRK.
*
*  Auxiliary routine for test program for Level 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. Parameters ..
      DOUBLE PRECISION   ZERO
      PARAMETER          ( ZERO = 0.0D0 )
*     .. Scalar Arguments ..
      DOUBLE PRECISION   EPS, THRESH
      INTEGER            NALF, NBET, NIDIM, NMAX, NOUT, NTRA
      LOGICAL            FATAL, REWI, TRACE
      CHARACTER*6        SNAME
*     .. Array Arguments ..
      DOUBLE PRECISION   A( NMAX, NMAX ), AA( NMAX*NMAX ), ALF( NALF ),
     $                   AS( NMAX*NMAX ), B( NMAX, NMAX ),
     $                   BB( NMAX*NMAX ), BET( NBET ), BS( NMAX*NMAX ),
     $                   C( NMAX, NMAX ), CC( NMAX*NMAX ),
     $                   CS( NMAX*NMAX ), CT( NMAX ), G( NMAX )
      INTEGER            IDIM( NIDIM )
*     .. Local Scalars ..
      DOUBLE PRECISION   ALPHA, ALS, BETA, BETS, ERR, ERRMAX
      INTEGER            I, IA, IB, ICT, ICU, IK, IN, J, JC, JJ, K, KS,
     $                   LAA, LCC, LDA, LDAS, LDC, LDCS, LJ, MA, N, NA,
     $                   NARGS, NC, NS
      LOGICAL            NULL, RESET, SAME, TRAN, UPPER
      CHARACTER*1        TRANS, TRANSS, UPLO, UPLOS
      CHARACTER*2        ICHU
      CHARACTER*3        ICHT
*     .. Local Arrays ..
      LOGICAL            ISAME( 13 )
*     .. External Functions ..
      LOGICAL            LDE, LDERES
      EXTERNAL           LDE, LDERES
*     .. External Subroutines ..
      EXTERNAL           DMAKE, DMMCH, DSYRK
*     .. Intrinsic Functions ..
      INTRINSIC          MAX
*     .. Scalars in Common ..
      INTEGER            INFOT, NOUTC
      LOGICAL            LERR, OK
*     .. Common blocks ..
      COMMON             /INFOC/INFOT, NOUTC, OK, LERR
*     .. Data statements ..
      DATA               ICHT/'NTC'/, ICHU/'UL'/
*     .. Executable Statements ..
*
      NARGS = 10
      NC = 0
      RESET = .TRUE.
      ERRMAX = ZERO
*
      DO 100 IN = 1, NIDIM
         N = IDIM( IN )
*        Set LDC to 1 more than minimum value if room.
         LDC = N
         IF( LDC.LT.NMAX )
     $      LDC = LDC + 1
*        Skip tests if not enough room.
         IF( LDC.GT.NMAX )
     $      GO TO 100
         LCC = LDC*N
         NULL = N.LE.0
*
         DO 90 IK = 1, NIDIM
            K = IDIM( IK )
*
            DO 80 ICT = 1, 3
               TRANS = ICHT( ICT: ICT )
               TRAN = TRANS.EQ.'T'.OR.TRANS.EQ.'C'
               IF( TRAN )THEN
                  MA = K
                  NA = N
               ELSE
                  MA = N
                  NA = K
               END IF
*              Set LDA to 1 more than minimum value if room.
               LDA = MA
               IF( LDA.LT.NMAX )
     $            LDA = LDA + 1
*              Skip tests if not enough room.
               IF( LDA.GT.NMAX )
     $            GO TO 80
               LAA = LDA*NA
*
*              Generate the matrix A.
*
               CALL DMAKE( 'GE', ' ', ' ', MA, NA, A, NMAX, AA, LDA,
     $                     RESET, ZERO )
*
               DO 70 ICU = 1, 2
                  UPLO = ICHU( ICU: ICU )
                  UPPER = UPLO.EQ.'U'
*
                  DO 60 IA = 1, NALF
                     ALPHA = ALF( IA )
*
                     DO 50 IB = 1, NBET
                        BETA = BET( IB )
*
*                       Generate the matrix C.
*
                        CALL DMAKE( 'SY', UPLO, ' ', N, N, C, NMAX, CC,
     $                              LDC, RESET, ZERO )
*
                        NC = NC + 1
*
*                       Save every datum before calling the subroutine.
*
                        UPLOS = UPLO
                        TRANSS = TRANS
                        NS = N
                        KS = K
                        ALS = ALPHA
                        DO 10 I = 1, LAA
                           AS( I ) = AA( I )
   10                   CONTINUE
                        LDAS = LDA
                        BETS = BETA
                        DO 20 I = 1, LCC
                           CS( I ) = CC( I )
   20                   CONTINUE
                        LDCS = LDC
*
*                       Call the subroutine.
*
                        IF( TRACE )
     $                     WRITE( NTRA, FMT = 9994 )NC, SNAME, UPLO,
     $                     TRANS, N, K, ALPHA, LDA, BETA, LDC
                        IF( REWI )
     $                     REWIND NTRA
                        CALL DSYRK( UPLO, TRANS, N, K, ALPHA, AA, LDA,
     $                              BETA, CC, LDC )
*
*                       Check if error-exit was taken incorrectly.
*
                        IF( .NOT.OK )THEN
                           WRITE( NOUT, FMT = 9993 )
                           FATAL = .TRUE.
                           GO TO 120
                        END IF
*
*                       See what data changed inside subroutines.
*
                        ISAME( 1 ) = UPLOS.EQ.UPLO
                        ISAME( 2 ) = TRANSS.EQ.TRANS
                        ISAME( 3 ) = NS.EQ.N
                        ISAME( 4 ) = KS.EQ.K
                        ISAME( 5 ) = ALS.EQ.ALPHA
                        ISAME( 6 ) = LDE( AS, AA, LAA )
                        ISAME( 7 ) = LDAS.EQ.LDA
                        ISAME( 8 ) = BETS.EQ.BETA
                        IF( NULL )THEN
                           ISAME( 9 ) = LDE( CS, CC, LCC )
                        ELSE
                           ISAME( 9 ) = LDERES( 'SY', UPLO, N, N, CS,
     $                                  CC, LDC )
                        END IF
                        ISAME( 10 ) = LDCS.EQ.LDC
*
*                       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.
*
                           JC = 1
                           DO 40 J = 1, N
                              IF( UPPER )THEN
                                 JJ = 1
                                 LJ = J
                              ELSE
                                 JJ = J
                                 LJ = N - J + 1
                              END IF
                              IF( TRAN )THEN
                                 CALL DMMCH( 'T', 'N', LJ, 1, K, ALPHA,
     $                                       A( 1, JJ ), NMAX,
     $                                       A( 1, J ), NMAX, BETA,
     $                                       C( JJ, J ), NMAX, CT, G,
     $                                       CC( JC ), LDC, EPS, ERR,
     $                                       FATAL, NOUT, .TRUE. )
                              ELSE
                                 CALL DMMCH( 'N', 'T', LJ, 1, K, ALPHA,
     $                                       A( JJ, 1 ), NMAX,
     $                                       A( J, 1 ), NMAX, BETA,
     $                                       C( JJ, J ), NMAX, CT, G,
     $                                       CC( JC ), LDC, EPS, ERR,
     $                                       FATAL, NOUT, .TRUE. )
                              END IF
                              IF( UPPER )THEN
                                 JC = JC + LDC
                              ELSE
                                 JC = JC + LDC + 1
                              END IF
                              ERRMAX = MAX( ERRMAX, ERR )
*                             If got really bad answer, report and
*                             return.
                              IF( FATAL )
     $                           GO TO 110
   40                      CONTINUE
                        END IF
*
   50                CONTINUE
*
   60             CONTINUE
*
   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
      IF( N.GT.1 )
     $   WRITE( NOUT, FMT = 9995 )J
*
  120 CONTINUE
      WRITE( NOUT, FMT = 9996 )SNAME
      WRITE( NOUT, FMT = 9994 )NC, SNAME, UPLO, TRANS, N, K, ALPHA,
     $   LDA, BETA, LDC
*
  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, '(', 2( '''', A1, ''',' ), 2( I3, ',' ),
     $      F4.1, ', A,', I3, ',', F4.1, ', C,', I3, ')           .' )
 9993 FORMAT( ' ******* FATAL ERROR - ERROR-EXIT TAKEN ON VALID CALL *',
     $      '******' )
*
*     End of DCHK4.
*
      END
      SUBROUTINE DCHK5( SNAME, EPS, THRESH, NOUT, NTRA, TRACE, REWI,
     $                  FATAL, NIDIM, IDIM, NALF, ALF, NBET, BET, NMAX,
     $                  AB, AA, AS, BB, BS, C, CC, CS, CT, G, W )
*
*  Tests DSYR2K.
*
*  Auxiliary routine for test program for Level 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. Parameters ..
      DOUBLE PRECISION   ZERO
      PARAMETER          ( ZERO = 0.0D0 )
*     .. Scalar Arguments ..
      DOUBLE PRECISION   EPS, THRESH
      INTEGER            NALF, NBET, NIDIM, NMAX, NOUT, NTRA
      LOGICAL            FATAL, REWI, TRACE
      CHARACTER*6        SNAME
*     .. Array Arguments ..
      DOUBLE PRECISION   AA( NMAX*NMAX ), AB( 2*NMAX*NMAX ),
     $                   ALF( NALF ), AS( NMAX*NMAX ), BB( NMAX*NMAX ),
     $                   BET( NBET ), BS( NMAX*NMAX ), C( NMAX, NMAX ),
     $                   CC( NMAX*NMAX ), CS( NMAX*NMAX ), CT( NMAX ),
     $                   G( NMAX ), W( 2*NMAX )
      INTEGER            IDIM( NIDIM )
*     .. Local Scalars ..
      DOUBLE PRECISION   ALPHA, ALS, BETA, BETS, ERR, ERRMAX
      INTEGER            I, IA, IB, ICT, ICU, IK, IN, J, JC, JJ, JJAB,
     $                   K, KS, LAA, LBB, LCC, LDA, LDAS, LDB, LDBS,
     $                   LDC, LDCS, LJ, MA, N, NA, NARGS, NC, NS
      LOGICAL            NULL, RESET, SAME, TRAN, UPPER
      CHARACTER*1        TRANS, TRANSS, UPLO, UPLOS
      CHARACTER*2        ICHU
      CHARACTER*3        ICHT
*     .. Local Arrays ..
      LOGICAL            ISAME( 13 )
*     .. External Functions ..
      LOGICAL            LDE, LDERES
      EXTERNAL           LDE, LDERES
*     .. External Subroutines ..
      EXTERNAL           DMAKE, DMMCH, DSYR2K
*     .. Intrinsic Functions ..
      INTRINSIC          MAX
*     .. Scalars in Common ..
      INTEGER            INFOT, NOUTC
      LOGICAL            LERR, OK
*     .. Common blocks ..
      COMMON             /INFOC/INFOT, NOUTC, OK, LERR
*     .. Data statements ..
      DATA               ICHT/'NTC'/, ICHU/'UL'/
*     .. Executable Statements ..
*
      NARGS = 12
      NC = 0
      RESET = .TRUE.
      ERRMAX = ZERO
*
      DO 130 IN = 1, NIDIM
         N = IDIM( IN )
*        Set LDC to 1 more than minimum value if room.
         LDC = N
         IF( LDC.LT.NMAX )
     $      LDC = LDC + 1
*        Skip tests if not enough room.
         IF( LDC.GT.NMAX )
     $      GO TO 130
         LCC = LDC*N
         NULL = N.LE.0
*
         DO 120 IK = 1, NIDIM
            K = IDIM( IK )
*
            DO 110 ICT = 1, 3
               TRANS = ICHT( ICT: ICT )
               TRAN = TRANS.EQ.'T'.OR.TRANS.EQ.'C'
               IF( TRAN )THEN
                  MA = K
                  NA = N
               ELSE
                  MA = N
                  NA = K
               END IF
*              Set LDA to 1 more than minimum value if room.
               LDA = MA
               IF( LDA.LT.NMAX )
     $            LDA = LDA + 1
*              Skip tests if not enough room.
               IF( LDA.GT.NMAX )
     $            GO TO 110
               LAA = LDA*NA
*
*              Generate the matrix A.
*
               IF( TRAN )THEN
                  CALL DMAKE( 'GE', ' ', ' ', MA, NA, AB, 2*NMAX, AA,
     $                        LDA, RESET, ZERO )
               ELSE
                  CALL DMAKE( 'GE', ' ', ' ', MA, NA, AB, NMAX, AA, LDA,
     $                        RESET, ZERO )
               END IF
*
*              Generate the matrix B.
*
               LDB = LDA
               LBB = LAA
               IF( TRAN )THEN
                  CALL DMAKE( 'GE', ' ', ' ', MA, NA, AB( K + 1 ),
     $                        2*NMAX, BB, LDB, RESET, ZERO )
               ELSE
                  CALL DMAKE( 'GE', ' ', ' ', MA, NA, AB( K*NMAX + 1 ),
     $                        NMAX, BB, LDB, RESET, ZERO )
               END IF
*
               DO 100 ICU = 1, 2
                  UPLO = ICHU( ICU: ICU )
                  UPPER = UPLO.EQ.'U'
*
                  DO 90 IA = 1, NALF
                     ALPHA = ALF( IA )
*
                     DO 80 IB = 1, NBET
                        BETA = BET( IB )
*
*                       Generate the matrix C.
*
                        CALL DMAKE( 'SY', UPLO, ' ', N, N, C, NMAX, CC,
     $                              LDC, RESET, ZERO )
*
                        NC = NC + 1
*
*                       Save every datum before calling the subroutine.
*
                        UPLOS = UPLO
                        TRANSS = TRANS
                        NS = N
                        KS = K
                        ALS = ALPHA
                        DO 10 I = 1, LAA
                           AS( I ) = AA( I )
   10                   CONTINUE
                        LDAS = LDA
                        DO 20 I = 1, LBB
                           BS( I ) = BB( I )
   20                   CONTINUE
                        LDBS = LDB
                        BETS = BETA
                        DO 30 I = 1, LCC
                           CS( I ) = CC( I )
   30                   CONTINUE
                        LDCS = LDC
*
*                       Call the subroutine.
*
                        IF( TRACE )
     $                     WRITE( NTRA, FMT = 9994 )NC, SNAME, UPLO,
     $                     TRANS, N, K, ALPHA, LDA, LDB, BETA, LDC
                        IF( REWI )
     $                     REWIND NTRA
                        CALL DSYR2K( UPLO, TRANS, N, K, ALPHA, AA, LDA,
     $                               BB, LDB, BETA, CC, LDC )
*
*                       Check if error-exit was taken incorrectly.
*
                        IF( .NOT.OK )THEN
                           WRITE( NOUT, FMT = 9993 )
                           FATAL = .TRUE.
                           GO TO 150
                        END IF
*
*                       See what data changed inside subroutines.
*
                        ISAME( 1 ) = UPLOS.EQ.UPLO
                        ISAME( 2 ) = TRANSS.EQ.TRANS
                        ISAME( 3 ) = NS.EQ.N
                        ISAME( 4 ) = KS.EQ.K
                        ISAME( 5 ) = ALS.EQ.ALPHA
                        ISAME( 6 ) = LDE( AS, AA, LAA )
                        ISAME( 7 ) = LDAS.EQ.LDA
                        ISAME( 8 ) = LDE( BS, BB, LBB )
                        ISAME( 9 ) = LDBS.EQ.LDB
                        ISAME( 10 ) = BETS.EQ.BETA
                        IF( NULL )THEN
                           ISAME( 11 ) = LDE( CS, CC, LCC )
                        ELSE
                           ISAME( 11 ) = LDERES( 'SY', UPLO, N, N, CS,
     $                                   CC, LDC )
                        END IF
                        ISAME( 12 ) = LDCS.EQ.LDC
*
*                       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 150
                        END IF
*
                        IF( .NOT.NULL )THEN
*
*                          Check the result column by column.
*
                           JJAB = 1
                           JC = 1
                           DO 70 J = 1, N
                              IF( UPPER )THEN
                                 JJ = 1
                                 LJ = J
                              ELSE
                                 JJ = J
                                 LJ = N - J + 1
                              END IF
                              IF( TRAN )THEN
                                 DO 50 I = 1, K
                                    W( I ) = AB( ( J - 1 )*2*NMAX + K +
     $                                       I )
                                    W( K + I ) = AB( ( J - 1 )*2*NMAX +
     $                                           I )
   50                            CONTINUE
                                 CALL DMMCH( 'T', 'N', LJ, 1, 2*K,
     $                                       ALPHA, AB( JJAB ), 2*NMAX,
     $                                       W, 2*NMAX, BETA,
     $                                       C( JJ, J ), NMAX, CT, G,
     $                                       CC( JC ), LDC, EPS, ERR,
     $                                       FATAL, NOUT, .TRUE. )
                              ELSE
                                 DO 60 I = 1, K
                                    W( I ) = AB( ( K + I - 1 )*NMAX +
     $                                       J )
                                    W( K + I ) = AB( ( I - 1 )*NMAX +
     $                                           J )
   60                            CONTINUE
                                 CALL DMMCH( 'N', 'N', LJ, 1, 2*K,
     $                                       ALPHA, AB( JJ ), NMAX, W,
     $                                       2*NMAX, BETA, C( JJ, J ),
     $                                       NMAX, CT, G, CC( JC ), LDC,
     $                                       EPS, ERR, FATAL, NOUT,
     $                                       .TRUE. )
                              END IF
                              IF( UPPER )THEN
                                 JC = JC + LDC
                              ELSE
                                 JC = JC + LDC + 1
                                 IF( TRAN )
     $                              JJAB = JJAB + 2*NMAX
                              END IF
                              ERRMAX = MAX( ERRMAX, ERR )
*                             If got really bad answer, report and
*                             return.
                              IF( FATAL )
     $                           GO TO 140
   70                      CONTINUE
                        END IF
*
   80                CONTINUE
*
   90             CONTINUE
*
  100          CONTINUE
*
  110       CONTINUE
*
  120    CONTINUE
*
  130 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 160
*
  140 CONTINUE
      IF( N.GT.1 )
     $   WRITE( NOUT, FMT = 9995 )J
*
  150 CONTINUE
      WRITE( NOUT, FMT = 9996 )SNAME
      WRITE( NOUT, FMT = 9994 )NC, SNAME, UPLO, TRANS, N, K, ALPHA,
     $   LDA, LDB, BETA, LDC
*
  160 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( '''', A1, ''',' ), 2( I3, ',' ),
     $      F4.1, ', A,', I3, ', B,', I3, ',', F4.1, ', C,', I3, ')   ',
     $      ' .' )
 9993 FORMAT( ' ******* FATAL ERROR - ERROR-EXIT TAKEN ON VALID CALL *',
     $      '******' )
*
*     End of DCHK5.
*
      END
      SUBROUTINE DCHKE( ISNUM, SRNAMT, NOUT )
*
*  Tests the error exits from the Level 3 Blas.
*  Requires a special version of the error-handling routine XERBLA.
*  ALPHA, BETA, A, B and C should not need to be defined.
*
*  Auxiliary routine for test program for Level 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. Scalar Arguments ..
      INTEGER            ISNUM, NOUT
      CHARACTER*6        SRNAMT
*     .. Scalars in Common ..
      INTEGER            INFOT, NOUTC
      LOGICAL            LERR, OK
*     .. Local Scalars ..
      DOUBLE PRECISION   ALPHA, BETA
*     .. Local Arrays ..
      DOUBLE PRECISION   A( 2, 1 ), B( 2, 1 ), C( 2, 1 )
*     .. External Subroutines ..
      EXTERNAL           CHKXER, DGEMM, DSYMM, DSYR2K, DSYRK, DTRMM,
     $                   DTRSM
*     .. 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 )ISNUM
   10 INFOT = 1
      CALL DGEMM( '/', 'N', 0, 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 1
      CALL DGEMM( '/', 'T', 0, 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 2
      CALL DGEMM( 'N', '/', 0, 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 2
      CALL DGEMM( 'T', '/', 0, 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DGEMM( 'N', 'N', -1, 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DGEMM( 'N', 'T', -1, 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DGEMM( 'T', 'N', -1, 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DGEMM( 'T', 'T', -1, 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DGEMM( 'N', 'N', 0, -1, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DGEMM( 'N', 'T', 0, -1, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DGEMM( 'T', 'N', 0, -1, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DGEMM( 'T', 'T', 0, -1, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DGEMM( 'N', 'N', 0, 0, -1, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DGEMM( 'N', 'T', 0, 0, -1, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DGEMM( 'T', 'N', 0, 0, -1, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DGEMM( 'T', 'T', 0, 0, -1, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 8
      CALL DGEMM( 'N', 'N', 2, 0, 0, ALPHA, A, 1, B, 1, BETA, C, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 8
      CALL DGEMM( 'N', 'T', 2, 0, 0, ALPHA, A, 1, B, 1, BETA, C, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 8
      CALL DGEMM( 'T', 'N', 0, 0, 2, ALPHA, A, 1, B, 2, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 8
      CALL DGEMM( 'T', 'T', 0, 0, 2, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 10
      CALL DGEMM( 'N', 'N', 0, 0, 2, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 10
      CALL DGEMM( 'T', 'N', 0, 0, 2, ALPHA, A, 2, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 10
      CALL DGEMM( 'N', 'T', 0, 2, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 10
      CALL DGEMM( 'T', 'T', 0, 2, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 13
      CALL DGEMM( 'N', 'N', 2, 0, 0, ALPHA, A, 2, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 13
      CALL DGEMM( 'N', 'T', 2, 0, 0, ALPHA, A, 2, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 13
      CALL DGEMM( 'T', 'N', 2, 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 13
      CALL DGEMM( 'T', 'T', 2, 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      GO TO 70
   20 INFOT = 1
      CALL DSYMM( '/', 'U', 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 2
      CALL DSYMM( 'L', '/', 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DSYMM( 'L', 'U', -1, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DSYMM( 'R', 'U', -1, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DSYMM( 'L', 'L', -1, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DSYMM( 'R', 'L', -1, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DSYMM( 'L', 'U', 0, -1, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DSYMM( 'R', 'U', 0, -1, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DSYMM( 'L', 'L', 0, -1, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DSYMM( 'R', 'L', 0, -1, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 7
      CALL DSYMM( 'L', 'U', 2, 0, ALPHA, A, 1, B, 2, BETA, C, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 7
      CALL DSYMM( 'R', 'U', 0, 2, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 7
      CALL DSYMM( 'L', 'L', 2, 0, ALPHA, A, 1, B, 2, BETA, C, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 7
      CALL DSYMM( 'R', 'L', 0, 2, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DSYMM( 'L', 'U', 2, 0, ALPHA, A, 2, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DSYMM( 'R', 'U', 2, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DSYMM( 'L', 'L', 2, 0, ALPHA, A, 2, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DSYMM( 'R', 'L', 2, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 12
      CALL DSYMM( 'L', 'U', 2, 0, ALPHA, A, 2, B, 2, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 12
      CALL DSYMM( 'R', 'U', 2, 0, ALPHA, A, 1, B, 2, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 12
      CALL DSYMM( 'L', 'L', 2, 0, ALPHA, A, 2, B, 2, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 12
      CALL DSYMM( 'R', 'L', 2, 0, ALPHA, A, 1, B, 2, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      GO TO 70
   30 INFOT = 1
      CALL DTRMM( '/', 'U', 'N', 'N', 0, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 2
      CALL DTRMM( 'L', '/', 'N', 'N', 0, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DTRMM( 'L', 'U', '/', 'N', 0, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DTRMM( 'L', 'U', 'N', '/', 0, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRMM( 'L', 'U', 'N', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRMM( 'L', 'U', 'T', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRMM( 'R', 'U', 'N', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRMM( 'R', 'U', 'T', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRMM( 'L', 'L', 'N', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRMM( 'L', 'L', 'T', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRMM( 'R', 'L', 'N', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRMM( 'R', 'L', 'T', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRMM( 'L', 'U', 'N', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRMM( 'L', 'U', 'T', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRMM( 'R', 'U', 'N', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRMM( 'R', 'U', 'T', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRMM( 'L', 'L', 'N', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRMM( 'L', 'L', 'T', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRMM( 'R', 'L', 'N', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRMM( 'R', 'L', 'T', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRMM( 'L', 'U', 'N', 'N', 2, 0, ALPHA, A, 1, B, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRMM( 'L', 'U', 'T', 'N', 2, 0, ALPHA, A, 1, B, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRMM( 'R', 'U', 'N', 'N', 0, 2, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRMM( 'R', 'U', 'T', 'N', 0, 2, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRMM( 'L', 'L', 'N', 'N', 2, 0, ALPHA, A, 1, B, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRMM( 'L', 'L', 'T', 'N', 2, 0, ALPHA, A, 1, B, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRMM( 'R', 'L', 'N', 'N', 0, 2, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRMM( 'R', 'L', 'T', 'N', 0, 2, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRMM( 'L', 'U', 'N', 'N', 2, 0, ALPHA, A, 2, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRMM( 'L', 'U', 'T', 'N', 2, 0, ALPHA, A, 2, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRMM( 'R', 'U', 'N', 'N', 2, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRMM( 'R', 'U', 'T', 'N', 2, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRMM( 'L', 'L', 'N', 'N', 2, 0, ALPHA, A, 2, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRMM( 'L', 'L', 'T', 'N', 2, 0, ALPHA, A, 2, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRMM( 'R', 'L', 'N', 'N', 2, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRMM( 'R', 'L', 'T', 'N', 2, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      GO TO 70
   40 INFOT = 1
      CALL DTRSM( '/', 'U', 'N', 'N', 0, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 2
      CALL DTRSM( 'L', '/', 'N', 'N', 0, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DTRSM( 'L', 'U', '/', 'N', 0, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DTRSM( 'L', 'U', 'N', '/', 0, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRSM( 'L', 'U', 'N', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRSM( 'L', 'U', 'T', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRSM( 'R', 'U', 'N', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRSM( 'R', 'U', 'T', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRSM( 'L', 'L', 'N', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRSM( 'L', 'L', 'T', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRSM( 'R', 'L', 'N', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 5
      CALL DTRSM( 'R', 'L', 'T', 'N', -1, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRSM( 'L', 'U', 'N', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRSM( 'L', 'U', 'T', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRSM( 'R', 'U', 'N', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRSM( 'R', 'U', 'T', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRSM( 'L', 'L', 'N', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRSM( 'L', 'L', 'T', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRSM( 'R', 'L', 'N', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 6
      CALL DTRSM( 'R', 'L', 'T', 'N', 0, -1, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRSM( 'L', 'U', 'N', 'N', 2, 0, ALPHA, A, 1, B, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRSM( 'L', 'U', 'T', 'N', 2, 0, ALPHA, A, 1, B, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRSM( 'R', 'U', 'N', 'N', 0, 2, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRSM( 'R', 'U', 'T', 'N', 0, 2, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRSM( 'L', 'L', 'N', 'N', 2, 0, ALPHA, A, 1, B, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRSM( 'L', 'L', 'T', 'N', 2, 0, ALPHA, A, 1, B, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRSM( 'R', 'L', 'N', 'N', 0, 2, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DTRSM( 'R', 'L', 'T', 'N', 0, 2, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRSM( 'L', 'U', 'N', 'N', 2, 0, ALPHA, A, 2, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRSM( 'L', 'U', 'T', 'N', 2, 0, ALPHA, A, 2, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRSM( 'R', 'U', 'N', 'N', 2, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRSM( 'R', 'U', 'T', 'N', 2, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRSM( 'L', 'L', 'N', 'N', 2, 0, ALPHA, A, 2, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRSM( 'L', 'L', 'T', 'N', 2, 0, ALPHA, A, 2, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRSM( 'R', 'L', 'N', 'N', 2, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 11
      CALL DTRSM( 'R', 'L', 'T', 'N', 2, 0, ALPHA, A, 1, B, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      GO TO 70
   50 INFOT = 1
      CALL DSYRK( '/', 'N', 0, 0, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 2
      CALL DSYRK( 'U', '/', 0, 0, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DSYRK( 'U', 'N', -1, 0, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DSYRK( 'U', 'T', -1, 0, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DSYRK( 'L', 'N', -1, 0, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DSYRK( 'L', 'T', -1, 0, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DSYRK( 'U', 'N', 0, -1, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DSYRK( 'U', 'T', 0, -1, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DSYRK( 'L', 'N', 0, -1, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DSYRK( 'L', 'T', 0, -1, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 7
      CALL DSYRK( 'U', 'N', 2, 0, ALPHA, A, 1, BETA, C, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 7
      CALL DSYRK( 'U', 'T', 0, 2, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 7
      CALL DSYRK( 'L', 'N', 2, 0, ALPHA, A, 1, BETA, C, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 7
      CALL DSYRK( 'L', 'T', 0, 2, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 10
      CALL DSYRK( 'U', 'N', 2, 0, ALPHA, A, 2, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 10
      CALL DSYRK( 'U', 'T', 2, 0, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 10
      CALL DSYRK( 'L', 'N', 2, 0, ALPHA, A, 2, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 10
      CALL DSYRK( 'L', 'T', 2, 0, ALPHA, A, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      GO TO 70
   60 INFOT = 1
      CALL DSYR2K( '/', 'N', 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 2
      CALL DSYR2K( 'U', '/', 0, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DSYR2K( 'U', 'N', -1, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DSYR2K( 'U', 'T', -1, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DSYR2K( 'L', 'N', -1, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 3
      CALL DSYR2K( 'L', 'T', -1, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DSYR2K( 'U', 'N', 0, -1, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DSYR2K( 'U', 'T', 0, -1, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DSYR2K( 'L', 'N', 0, -1, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 4
      CALL DSYR2K( 'L', 'T', 0, -1, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 7
      CALL DSYR2K( 'U', 'N', 2, 0, ALPHA, A, 1, B, 1, BETA, C, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 7
      CALL DSYR2K( 'U', 'T', 0, 2, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 7
      CALL DSYR2K( 'L', 'N', 2, 0, ALPHA, A, 1, B, 1, BETA, C, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 7
      CALL DSYR2K( 'L', 'T', 0, 2, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DSYR2K( 'U', 'N', 2, 0, ALPHA, A, 2, B, 1, BETA, C, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DSYR2K( 'U', 'T', 0, 2, ALPHA, A, 2, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DSYR2K( 'L', 'N', 2, 0, ALPHA, A, 2, B, 1, BETA, C, 2 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 9
      CALL DSYR2K( 'L', 'T', 0, 2, ALPHA, A, 2, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 12
      CALL DSYR2K( 'U', 'N', 2, 0, ALPHA, A, 2, B, 2, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 12
      CALL DSYR2K( 'U', 'T', 2, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 12
      CALL DSYR2K( 'L', 'N', 2, 0, ALPHA, A, 2, B, 2, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
      INFOT = 12
      CALL DSYR2K( 'L', 'T', 2, 0, ALPHA, A, 1, B, 1, BETA, C, 1 )
      CALL CHKXER( SRNAMT, INFOT, NOUT, LERR, OK )
*
   70 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 DCHKE.
*
      END
      SUBROUTINE DMAKE( TYPE, UPLO, DIAG, M, N, A, NMAX, AA, LDA, RESET,
     $                  TRANSL )
*
*  Generates values for an M by N matrix A.
*  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', 'SY' or 'TR'.
*
*  Auxiliary routine for test program for Level 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. Parameters ..
      DOUBLE PRECISION   ZERO, ONE
      PARAMETER          ( ZERO = 0.0D0, ONE = 1.0D0 )
      DOUBLE PRECISION   ROGUE
      PARAMETER          ( ROGUE = -1.0D10 )
*     .. Scalar Arguments ..
      DOUBLE PRECISION   TRANSL
      INTEGER            LDA, M, N, NMAX
      LOGICAL            RESET
      CHARACTER*1        DIAG, UPLO
      CHARACTER*2        TYPE
*     .. Array Arguments ..
      DOUBLE PRECISION   A( NMAX, * ), AA( * )
*     .. Local Scalars ..
      INTEGER            I, IBEG, IEND, J
      LOGICAL            GEN, LOWER, SYM, TRI, UNIT, UPPER
*     .. External Functions ..
      DOUBLE PRECISION   DBEG
      EXTERNAL           DBEG
*     .. Executable Statements ..
      GEN = TYPE.EQ.'GE'
      SYM = TYPE.EQ.'SY'
      TRI = TYPE.EQ.'TR'
      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
               A( I, J ) = DBEG( RESET ) + TRANSL
               IF( I.NE.J )THEN
*                 Set some elements to zero
                  IF( N.GT.3.AND.J.EQ.N/2 )
     $               A( I, J ) = ZERO
                  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.'SY'.OR.TYPE.EQ.'TR' )THEN
         DO 90 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 60 I = 1, IBEG - 1
               AA( I + ( J - 1 )*LDA ) = ROGUE
   60       CONTINUE
            DO 70 I = IBEG, IEND
               AA( I + ( J - 1 )*LDA ) = A( I, J )
   70       CONTINUE
            DO 80 I = IEND + 1, LDA
               AA( I + ( J - 1 )*LDA ) = ROGUE
   80       CONTINUE
   90    CONTINUE
      END IF
      RETURN
*
*     End of DMAKE.
*
      END
      SUBROUTINE DMMCH( TRANSA, TRANSB, M, N, KK, ALPHA, A, LDA, B, LDB,
     $                  BETA, C, LDC, CT, G, CC, LDCC, EPS, ERR, FATAL,
     $                  NOUT, MV )
*
*  Checks the results of the computational tests.
*
*  Auxiliary routine for test program for Level 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. Parameters ..
      DOUBLE PRECISION   ZERO, ONE
      PARAMETER          ( ZERO = 0.0D0, ONE = 1.0D0 )
*     .. Scalar Arguments ..
      DOUBLE PRECISION   ALPHA, BETA, EPS, ERR
      INTEGER            KK, LDA, LDB, LDC, LDCC, M, N, NOUT
      LOGICAL            FATAL, MV
      CHARACTER*1        TRANSA, TRANSB
*     .. Array Arguments ..
      DOUBLE PRECISION   A( LDA, * ), B( LDB, * ), C( LDC, * ),
     $                   CC( LDCC, * ), CT( * ), G( * )
*     .. Local Scalars ..
      DOUBLE PRECISION   ERRI
      INTEGER            I, J, K
      LOGICAL            TRANA, TRANB
*     .. Intrinsic Functions ..
      INTRINSIC          ABS, MAX, SQRT
*     .. Executable Statements ..
      TRANA = TRANSA.EQ.'T'.OR.TRANSA.EQ.'C'
      TRANB = TRANSB.EQ.'T'.OR.TRANSB.EQ.'C'
*
*     Compute expected result, one column at a time, in CT using data
*     in A, B and C.
*     Compute gauges in G.
*
      DO 120 J = 1, N
*
         DO 10 I = 1, M
            CT( I ) = ZERO
            G( I ) = ZERO
   10    CONTINUE
         IF( .NOT.TRANA.AND..NOT.TRANB )THEN
            DO 30 K = 1, KK
               DO 20 I = 1, M
                  CT( I ) = CT( I ) + A( I, K )*B( K, J )
                  G( I ) = G( I ) + ABS( A( I, K ) )*ABS( B( K, J ) )
   20          CONTINUE
   30       CONTINUE
         ELSE IF( TRANA.AND..NOT.TRANB )THEN
            DO 50 K = 1, KK
               DO 40 I = 1, M
                  CT( I ) = CT( I ) + A( K, I )*B( K, J )
                  G( I ) = G( I ) + ABS( A( K, I ) )*ABS( B( K, J ) )
   40          CONTINUE
   50       CONTINUE
         ELSE IF( .NOT.TRANA.AND.TRANB )THEN
            DO 70 K = 1, KK
               DO 60 I = 1, M
                  CT( I ) = CT( I ) + A( I, K )*B( J, K )
                  G( I ) = G( I ) + ABS( A( I, K ) )*ABS( B( J, K ) )
   60          CONTINUE
   70       CONTINUE
         ELSE IF( TRANA.AND.TRANB )THEN
            DO 90 K = 1, KK
               DO 80 I = 1, M
                  CT( I ) = CT( I ) + A( K, I )*B( J, K )
                  G( I ) = G( I ) + ABS( A( K, I ) )*ABS( B( J, K ) )
   80          CONTINUE
   90       CONTINUE
         END IF
         DO 100 I = 1, M
            CT( I ) = ALPHA*CT( I ) + BETA*C( I, J )
            G( I ) = ABS( ALPHA )*G( I ) + ABS( BETA )*ABS( C( I, J ) )
  100    CONTINUE
*
*        Compute the error ratio for this result.
*
         ERR = ZERO
         DO 110 I = 1, M
            ERRI = ABS( CT( I ) - CC( I, J ) )/EPS
            IF( G( I ).NE.ZERO )
     $         ERRI = ERRI/G( I )
            ERR = MAX( ERR, ERRI )
            IF( ERR*SQRT( EPS ).GE.ONE )
     $         GO TO 130
  110    CONTINUE
*
  120 CONTINUE
*
*     If the loop completes, all results are at least half accurate.
      GO TO 150
*
*     Report fatal error.
*
  130 FATAL = .TRUE.
      WRITE( NOUT, FMT = 9999 )
      DO 140 I = 1, M
         IF( MV )THEN
            WRITE( NOUT, FMT = 9998 )I, CT( I ), CC( I, J )
         ELSE
            WRITE( NOUT, FMT = 9998 )I, CC( I, J ), CT( I )
         END IF
  140 CONTINUE
      IF( N.GT.1 )
     $   WRITE( NOUT, FMT = 9997 )J
*
  150 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 )
 9997 FORMAT( '      THESE ARE THE RESULTS FOR COLUMN ', I3 )
*
*     End of DMMCH.
*
      END
      LOGICAL FUNCTION LDE( RI, RJ, LR )
*
*  Tests if two arrays are identical.
*
*  Auxiliary routine for test program for Level 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. Scalar Arguments ..
      INTEGER            LR
*     .. Array Arguments ..
      DOUBLE PRECISION   RI( * ), RJ( * )
*     .. Local Scalars ..
      INTEGER            I
*     .. Executable Statements ..
      DO 10 I = 1, LR
         IF( RI( I ).NE.RJ( I ) )
     $      GO TO 20
   10 CONTINUE
      LDE = .TRUE.
      GO TO 30
   20 CONTINUE
      LDE = .FALSE.
   30 RETURN
*
*     End of LDE.
*
      END
      LOGICAL FUNCTION LDERES( TYPE, UPLO, M, N, AA, AS, LDA )
*
*  Tests if selected elements in two arrays are equal.
*
*  TYPE is 'GE' or 'SY'.
*
*  Auxiliary routine for test program for Level 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. Scalar Arguments ..
      INTEGER            LDA, M, N
      CHARACTER*1        UPLO
      CHARACTER*2        TYPE
*     .. Array Arguments ..
      DOUBLE PRECISION   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
*
   60 CONTINUE
      LDERES = .TRUE.
      GO TO 80
   70 CONTINUE
      LDERES = .FALSE.
   80 RETURN
*
*     End of LDERES.
*
      END
      DOUBLE PRECISION FUNCTION DBEG( RESET )
*
*  Generates random numbers uniformly distributed between -0.5 and 0.5.
*
*  Auxiliary routine for test program for Level 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. Scalar Arguments ..
      LOGICAL            RESET
*     .. Local Scalars ..
      INTEGER            I, IC, MI
*     .. Save statement ..
      SAVE               I, IC, MI
*     .. 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
      DBEG = ( I - 500 )/1001.0D0
      RETURN
*
*     End of DBEG.
*
      END
      DOUBLE PRECISION FUNCTION DDIFF( X, Y )
*
*  Auxiliary routine for test program for Level 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. Scalar Arguments ..
      DOUBLE PRECISION   X, Y
*     .. Executable Statements ..
      DDIFF = X - Y
      RETURN
*
*     End of DDIFF.
*
      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 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. 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 3 BLAS
*  routines.
*
*  XERBLA  is an error handler for the Level 3 BLAS routines.
*
*  It is called by the Level 3 BLAS routines if an input parameter is
*  invalid.
*
*  Auxiliary routine for test program for Level 3 Blas.
*
*  -- Written on 8-February-1989.
*     Jack Dongarra, Argonne National Laboratory.
*     Iain Duff, AERE Harwell.
*     Jeremy Du Croz, Numerical Algorithms Group Ltd.
*     Sven Hammarling, Numerical Algorithms Group Ltd.
*
*     .. 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