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*
*
SUBROUTINE PDSEPINFO( CONTEXT, IAM, NIN, NOUT, MAXSETSIZE,
$ NMATSIZES, MATSIZES, NUPLOS, UPLOS,
$ NPCONFIGS, NPROWS, NPCOLS, NBS, NMATTYPES,
$ MATTYPES, MAXTYPE, SUBTESTS, THRESH, ORDER,
$ ABSTOL, INFO )
*
* -- ScaLAPACK routine (version 1.7) --
* University of Tennessee, Knoxville, Oak Ridge National Laboratory,
* and University of California, Berkeley.
* May 1, 1997
*
* Purpose
* =======
*
* PDSEPINFO reads the input test data file (INFILE), copies the
* information therein to all processes and returns this information
* in the corresponding parameters.
*
* Arguments
* =========
*
* CONTEXT (global input) INTEGER
* BLACS Context
*
* IAM (local input) INTEGER
* process number.
* IAM.EQ.0 on the proceesor that performs I/O
*
* NIN (global input) INTEGER
* The unit number of the input file.
*
* NOUT (global output) INTEGER
* The unit number for output file.
* if NOUT = 6, ouput to screen,
* if NOUT = 0, output to stderr
* Only defined for process 0.
*
* MAXSETSIZE (global output) INTEGER
* Maximum set size. Size of the following arrays:
* MATSIZES, MATTYPES, NBS, NPCOLS, NPROWS
*
* NMATSIZES (global output) INTEGER
* Number of matrix sizes to test
*
* MATSIZES (global output) INTEGER array dimension MAXSETSIZE
* Matrix sizes to test
*
* NUPLOS (global output) INTEGER
* Number of UPLO values to test
*
* UPLOS (global output) CHARACTER*1 array dimension 2
* Values of UPLO to test
*
* NPCONFIGS (global output) INTEGER
* Number of process configuratins (NPROW, NPCOL, NB)
*
* NPROWS (global output) INTEGER array dimension MAXSETSIZE
* Values of NPROW to test
*
* NPCOLS (global output) INTEGER array dimension MAXSETSIZE
* Values of NPCOL to test
*
* NBS (global output) INTEGER array dimension MAXSETSIZE
* Values of NB to test
*
* NMATTYPES (global output) INTEGER
* Number of matrix types to test
*
* MATTYPES (global output) INTEGER array dimension MAXSETSIZE
* Matrix types to test
* Refer to PDSEPTST for a complete description of the
* supported matrix types.
*
* MAXTYPE (global input) INTEGER
* Maximum allowed matrix type
*
* SUBTESTS (global output) CHARACTER
* 'N' = Do not perform subtests
* 'Y' = Perfrom subtests
*
*
* THRESH (global output) @(tupc)
* A test will count as "failed" if the "error", computed as
* described below, exceeds THRESH. Note that the error
* is scaled to be O(1), so THRESH should be a reasonably
* small multiple of 1, e.g., 10 or 100. In particular,
* it should not depend on the precision (single vs. double)
* or the size of the matrix. It must be at least zero.
* ( THRESH is set to 1/10 of the value defined in the .dat
* file when NOUT = 13. THRESH is set to 1/20 of the value
* defined in the .dat file when NOUT = 14. This allows us
* to specify more stringent criteria for our internal testing )
*
* ORDER (global output) INTEGER
* Number of reflectors used in test matrix creation.
* If ORDER is large, it will
* take more time to create the test matrices but they will
* be closer to random.
* ORDER .lt. N not implemented
*
* ABSTOL (global output) DOUBLE PRECISION
* The absolute tolerance for the eigenvalues. An
* eigenvalue is considered to be located if it has
* been determined to lie in an interval whose width
* is "abstol" or less. If "abstol" is less than or equal
* to zero, then ulp*|T| will be used, where |T| is
* the 1-norm of the matrix. If eigenvectors are
* desired later by inverse iteration ("PDSTEIN"),
* "abstol" MUST NOT be bigger than ulp*|T|.
*
* If ( ABSTOL .EQ. 0 in SEP.dat, it is set to
* 2.0 * PDLAMCH( 'u' ) in this routine.
*
* INFO (global output) INTEGER
* 0 = normal return
* -1 = end of file
* -2 = incorrrect data specification
*
* .. Scalar Arguments ..
CHARACTER SUBTESTS
INTEGER CONTEXT, IAM, INFO, MAXSETSIZE, MAXTYPE, NIN,
$ NMATSIZES, NMATTYPES, NOUT, NPCONFIGS, NUPLOS,
$ ORDER
DOUBLE PRECISION ABSTOL, THRESH
* ..
* .. Array Arguments ..
CHARACTER UPLOS( 2 )
INTEGER MATSIZES( MAXSETSIZE ), MATTYPES( MAXSETSIZE ),
$ NBS( MAXSETSIZE ), NPCOLS( MAXSETSIZE ),
$ NPROWS( MAXSETSIZE )
* ..
* .. Parameters ..
INTEGER BLOCK_CYCLIC_2D, DLEN_, DTYPE_, CTXT_, M_, N_,
$ MB_, NB_, RSRC_, CSRC_, LLD_
PARAMETER ( BLOCK_CYCLIC_2D = 1, DLEN_ = 9, DTYPE_ = 1,
$ CTXT_ = 2, M_ = 3, N_ = 4, MB_ = 5, NB_ = 6,
$ RSRC_ = 7, CSRC_ = 8, LLD_ = 9 )
DOUBLE PRECISION TWO, TEN, TWENTY
PARAMETER ( TWO = 2.0D0, TEN = 10.0D0, TWENTY = 20.0D0 )
* ..
* .. Local Scalars ..
CHARACTER*80 TESTSUMMRY
INTEGER I, ISUBTESTS
* ..
* .. External Functions ..
LOGICAL LSAME
DOUBLE PRECISION PDLAMCH
EXTERNAL LSAME, PDLAMCH
* ..
*
* .. External Subroutines ..
EXTERNAL DGEBR2D, DGEBS2D, IGEBR2D, IGEBS2D
* ..
*
* .. Local Arrays ..
INTEGER IUPLOS( 2 )
* ..
* .. Executable Statements ..
* This is just to keep ftnchek happy
IF( BLOCK_CYCLIC_2D*CSRC_*CTXT_*DLEN_*DTYPE_*LLD_*MB_*M_*NB_*N_*
$ RSRC_.LT.0 )RETURN
*
INFO = 0
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = 9997 )TESTSUMMRY
TESTSUMMRY = ' '
READ( NIN, FMT = 9997 )TESTSUMMRY
WRITE( NOUT, FMT = 9997 )TESTSUMMRY
END IF
*
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = * )NMATSIZES
CALL IGEBS2D( CONTEXT, 'All', ' ', 1, 1, NMATSIZES, 1 )
ELSE
CALL IGEBR2D( CONTEXT, 'All', ' ', 1, 1, NMATSIZES, 1, 0, 0 )
END IF
IF( NMATSIZES.EQ.-1 ) THEN
INFO = -1
GO TO 70
END IF
IF( NMATSIZES.LT.1 .OR. NMATSIZES.GT.MAXSETSIZE ) THEN
IF( IAM.EQ.0 ) THEN
WRITE( NOUT, FMT = 9999 )'Matrix size', NMATSIZES, 1,
$ MAXSETSIZE
END IF
INFO = -2
GO TO 70
END IF
*
*
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = * )( MATSIZES( I ), I = 1, NMATSIZES )
CALL IGEBS2D( CONTEXT, 'All', ' ', 1, NMATSIZES, MATSIZES, 1 )
ELSE
CALL IGEBR2D( CONTEXT, 'All', ' ', 1, NMATSIZES, MATSIZES, 1,
$ 0, 0 )
END IF
*
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = * )NUPLOS
CALL IGEBS2D( CONTEXT, 'All', ' ', 1, 1, NUPLOS, 1 )
ELSE
CALL IGEBR2D( CONTEXT, 'All', ' ', 1, 1, NUPLOS, 1, 0, 0 )
END IF
IF( NUPLOS.LT.1 .OR. NUPLOS.GT.2 ) THEN
IF( IAM.EQ.0 ) THEN
WRITE( NOUT, FMT = 9999 )'# of UPLOs', NUPLOS, 1, 2
END IF
INFO = -2
GO TO 70
END IF
*
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = * )( UPLOS( I ), I = 1, NUPLOS )
DO 10 I = 1, NUPLOS
IF( LSAME( UPLOS( I ), 'L' ) ) THEN
IUPLOS( I ) = 1
ELSE
IUPLOS( I ) = 2
END IF
10 CONTINUE
CALL IGEBS2D( CONTEXT, 'All', ' ', 1, NUPLOS, IUPLOS, 1 )
ELSE
CALL IGEBR2D( CONTEXT, 'All', ' ', 1, NUPLOS, IUPLOS, 1, 0, 0 )
END IF
DO 20 I = 1, NUPLOS
IF( IUPLOS( I ).EQ.1 ) THEN
UPLOS( I ) = 'L'
ELSE
UPLOS( I ) = 'U'
END IF
20 CONTINUE
*
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = * )NPCONFIGS
CALL IGEBS2D( CONTEXT, 'All', ' ', 1, 1, NPCONFIGS, 1 )
ELSE
CALL IGEBR2D( CONTEXT, 'All', ' ', 1, 1, NPCONFIGS, 1, 0, 0 )
END IF
IF( NPCONFIGS.LT.1 .OR. NPCONFIGS.GT.MAXSETSIZE ) THEN
IF( IAM.EQ.0 ) THEN
WRITE( NOUT, FMT = 9999 )'# proc configs', NPCONFIGS, 1,
$ MAXSETSIZE
END IF
INFO = -2
GO TO 70
END IF
*
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = * )( NPROWS( I ), I = 1, NPCONFIGS )
CALL IGEBS2D( CONTEXT, 'All', ' ', 1, NPCONFIGS, NPROWS, 1 )
ELSE
CALL IGEBR2D( CONTEXT, 'All', ' ', 1, NPCONFIGS, NPROWS, 1, 0,
$ 0 )
END IF
DO 30 I = 1, NPCONFIGS
IF( NPROWS( I ).LE.0 )
$ INFO = -2
30 CONTINUE
IF( INFO.EQ.-2 ) THEN
IF( IAM.EQ.0 ) THEN
WRITE( NOUT, FMT = 9996 )' NPROW'
END IF
GO TO 70
END IF
*
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = * )( NPCOLS( I ), I = 1, NPCONFIGS )
CALL IGEBS2D( CONTEXT, 'All', ' ', 1, NPCONFIGS, NPCOLS, 1 )
ELSE
CALL IGEBR2D( CONTEXT, 'All', ' ', 1, NPCONFIGS, NPCOLS, 1, 0,
$ 0 )
END IF
DO 40 I = 1, NPCONFIGS
IF( NPCOLS( I ).LE.0 )
$ INFO = -2
40 CONTINUE
IF( INFO.EQ.-2 ) THEN
IF( IAM.EQ.0 ) THEN
WRITE( NOUT, FMT = 9996 )' NPCOL'
END IF
GO TO 70
END IF
*
*
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = * )( NBS( I ), I = 1, NPCONFIGS )
CALL IGEBS2D( CONTEXT, 'All', ' ', 1, NPCONFIGS, NBS, 1 )
ELSE
CALL IGEBR2D( CONTEXT, 'All', ' ', 1, NPCONFIGS, NBS, 1, 0, 0 )
END IF
DO 50 I = 1, NPCONFIGS
IF( NBS( I ).LE.0 )
$ INFO = -2
50 CONTINUE
IF( INFO.EQ.-2 ) THEN
IF( IAM.EQ.0 ) THEN
WRITE( NOUT, FMT = 9996 )' NB'
END IF
GO TO 70
END IF
*
*
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = * )NMATTYPES
CALL IGEBS2D( CONTEXT, 'All', ' ', 1, 1, NMATTYPES, 1 )
ELSE
CALL IGEBR2D( CONTEXT, 'All', ' ', 1, 1, NMATTYPES, 1, 0, 0 )
END IF
IF( NMATTYPES.LT.1 .OR. NMATTYPES.GT.MAXSETSIZE ) THEN
IF( IAM.EQ.0 ) THEN
WRITE( NOUT, FMT = 9999 )'matrix types', NMATTYPES, 1,
$ MAXSETSIZE
END IF
INFO = -2
GO TO 70
END IF
*
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = * )( MATTYPES( I ), I = 1, NMATTYPES )
CALL IGEBS2D( CONTEXT, 'All', ' ', 1, NMATTYPES, MATTYPES, 1 )
ELSE
CALL IGEBR2D( CONTEXT, 'All', ' ', 1, NMATTYPES, MATTYPES, 1,
$ 0, 0 )
END IF
*
DO 60 I = 1, NMATTYPES
IF( MATTYPES( I ).LT.1 .OR. MATTYPES( I ).GT.MAXTYPE ) THEN
IF( IAM.EQ.0 ) THEN
WRITE( NOUT, FMT = 9999 )'matrix type', MATTYPES( I ),
$ 1, MAXTYPE
END IF
MATTYPES( I ) = 1
END IF
60 CONTINUE
*
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = * )SUBTESTS
IF( LSAME( SUBTESTS, 'Y' ) ) THEN
ISUBTESTS = 2
ELSE
ISUBTESTS = 1
END IF
CALL IGEBS2D( CONTEXT, 'All', ' ', 1, 1, ISUBTESTS, 1 )
ELSE
CALL IGEBR2D( CONTEXT, 'All', ' ', 1, 1, ISUBTESTS, 1, 0, 0 )
END IF
IF( ISUBTESTS.EQ.2 ) THEN
SUBTESTS = 'Y'
ELSE
SUBTESTS = 'N'
END IF
*
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = * )THRESH
IF( NOUT.EQ.13 )
$ THRESH = THRESH / TEN
IF( NOUT.EQ.14 )
$ THRESH = THRESH / TWENTY
CALL DGEBS2D( CONTEXT, 'All', ' ', 1, 1, THRESH, 1 )
ELSE
CALL DGEBR2D( CONTEXT, 'All', ' ', 1, 1, THRESH, 1, 0, 0 )
END IF
*
ORDER = 0
*
IF( IAM.EQ.0 ) THEN
READ( NIN, FMT = * )ABSTOL
CALL DGEBS2D( CONTEXT, 'All', ' ', 1, 1, ABSTOL, 1 )
ELSE
CALL DGEBR2D( CONTEXT, 'All', ' ', 1, 1, ABSTOL, 1, 0, 0 )
END IF
IF( ABSTOL.LT.0 )
$ ABSTOL = TWO*PDLAMCH( CONTEXT, 'U' )
*
INFO = 0
*
70 CONTINUE
RETURN
*
9999 FORMAT( A20, ' is:', I5, ' must be between:', I5, ' and', I5 )
9998 FORMAT( A20, ' is:', I5, ' must be:', I5, ' or', I5 )
9997 FORMAT( A )
9996 FORMAT( A20, ' must be positive' )
*
* End of PDSEPINFO
*
END
|
