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SUBROUTINE BTSETUP( MEM, MEMLEN, CMEM, CMEMLEN, OUTNUM,
$ TESTSDRV, TESTBSBR, TESTCOMB, TESTAUX,
$ IAM, NNODES )
*
* -- BLACS tester (version 1.0) --
* University of Tennessee
* December 15, 1994
*
* .. Scalar Arguments ..
LOGICAL TESTSDRV, TESTBSBR, TESTCOMB, TESTAUX
INTEGER MEMLEN, CMEMLEN, OUTNUM, IAM, NNODES
* ..
* .. Array Arguments ..
INTEGER MEM(MEMLEN)
CHARACTER*1 CMEM(CMEMLEN)
* ..
*
* Purpose
* =======
* BTSETUP: Fills in process number array, and sets up machine on
* dynamic systems.
*
* Arguments
* =========
* MEM (input) INTEGER array, dimension MEMSIZE
* Scratch pad memory area.
*
* MEMLEN (input) INTEGER
* Number of safe elements in MEM.
*
* CMEM (input) CHARACTER array, dimension CMEMSIZE
* Scratch pad memory area.
*
* CMEMLEN (input) INTEGER
* Number of safe elements in MEM.
*
* OUTNUM (input/output) INTEGER
* Unit number of output file for top level error information.
* Input for process 0. Set to zero as output for all other
* processes as a safety precaution.
*
* TESTSDRV (input) LOGICAL
* Will there be point-to-point tests in this test run?
*
* TESTBSBR (input) LOGICAL
* Will there be broadcast tests in this test run?
*
* TESTCOMB (input) LOGICAL
* Will there be combine-operator tests in this test run?
*
* TESTAUX (input) LOGICAL
* Will there be auxiliary tests in this test run?
*
* IAM (input/output) INTEGER
* This process's node number.
*
* NNODES (input/output) INTEGER
* Number of processes that are started up by this subroutine.
*
* ====================================================================
*
* .. Local Scalars ..
INTEGER I, CONTEXT, MEMUSED, CMEMUSED, NGRID, PPTR, QPTR
* ..
* .. External Functions ..
INTEGER BLACS_PNUM
EXTERNAL BLACS_PNUM
* ..
* .. External Subroutines ..
EXTERNAL BLACS_SETUP, BLACS_GRIDINIT, BLACS_GRIDEXIT
* ..
* .. Common blocks ..
COMMON /BTPNUM/ BTPNUMS
* ..
* .. Arrays in Common ..
INTEGER BTPNUMS(0:999)
* ..
* .. Executable Statements ..
*
IF( NNODES .GT. 0 ) RETURN
IF ( IAM .EQ. 0 ) THEN
IF ( TESTSDRV ) THEN
*
* Determine the max number of nodes required by a SDRV tests
*
CALL RDSDRV( MEMUSED, MEM, MEMLEN, CMEMUSED, CMEM, CMEMLEN,
$ OUTNUM )
IF( (MEMUSED + 24) .GT. MEMLEN ) THEN
WRITE(OUTNUM, *) 'Not enough memory to read in sdrv.dat'
STOP
END IF
*
I = MEMUSED + 1
CALL BTUNPACK( 'SDRV', MEM, MEMUSED, MEM(I+1), MEM(I+2),
$ MEM(I+22), MEM(I+23), MEM(I+12), MEM(I+20),
$ MEM(I+3), MEM(I+13), NGRID, MEM(I+4),
$ MEM(I+14), MEM(I+21), MEM(I+5), MEM(I+15),
$ MEM(I+6), MEM(I+16), MEM(I+7), MEM(I+17),
$ MEM(I+8), MEM(I+18), MEM(I+9), MEM(I+19),
$ MEM(I+11), PPTR, QPTR )
*
DO 10 I = 0, NGRID-1
NNODES = MAX0( MEM(PPTR+I) * MEM(QPTR+I), NNODES )
10 CONTINUE
END IF
IF( TESTBSBR ) THEN
*
* Determine the maximum number of nodes required by a
* broadcast test case
*
CALL RDBSBR( MEMUSED, MEM, MEMLEN, CMEMUSED, CMEM, CMEMLEN,
$ OUTNUM )
I = MEMUSED + 1
CALL BTUNPACK( 'BSBR', MEM, MEMUSED, MEM(I+1), MEM(I+2),
$ MEM(I+22), MEM(I+23), MEM(I+12), MEM(I+20),
$ MEM(I+3), MEM(I+13), NGRID, MEM(I+4),
$ MEM(I+14), MEM(I+21), MEM(I+5), MEM(I+15),
$ MEM(I+6), MEM(I+16), MEM(I+7), MEM(I+17),
$ MEM(I+8), MEM(I+18), MEM(I+9), MEM(I+19),
$ MEM(I+11), PPTR, QPTR )
DO 20 I = 0, NGRID-1
NNODES = MAX0( MEM(PPTR+I) * MEM(QPTR+I), NNODES )
20 CONTINUE
*
END IF
IF( TESTCOMB ) THEN
*
* Determine the maximum number of nodes required by a
* combine test case
*
CALL RDCOMB( MEMUSED, MEM, MEMLEN, CMEMUSED, CMEM, CMEMLEN,
$ OUTNUM )
I = MEMUSED + 1
CALL BTUNPACK( 'COMB', MEM, MEMUSED, MEM(I+1), MEM(I+2),
$ MEM(I+22), MEM(I+23), MEM(I+12), MEM(I+20),
$ MEM(I+3), MEM(I+13), NGRID, MEM(I+4),
$ MEM(I+14), MEM(I+21), MEM(I+5), MEM(I+15),
$ MEM(I+6), MEM(I+16), MEM(I+7), MEM(I+17),
$ MEM(I+8), MEM(I+18), MEM(I+9), MEM(I+19),
$ MEM(I+11), PPTR, QPTR )
*
DO 30 I = 0, NGRID-1
NNODES = MAX0( MEM(PPTR+I) * MEM(QPTR+I), NNODES )
30 CONTINUE
END IF
END IF
*
* If we run auxiliary tests, must have at least two nodes,
* otherwise, minimum is 1
*
IF( TESTAUX ) THEN
NNODES = MAX0( NNODES, 2 )
ELSE
NNODES = MAX0( NNODES, 1 )
END IF
*
CALL BLACS_SETUP( IAM, NNODES )
*
* We've buried a PNUM array in the common block above, and here
* we initialize it. The reason for carrying this along is so that
* the TSEND and TRECV subroutines can report test results back to
* the first process, which can then be the sole process
* writing output files.
*
CALL BLACS_GET( 0, 0, CONTEXT )
CALL BLACS_GRIDINIT( CONTEXT, 'r', 1, NNODES )
*
DO 40 I = 0, NNODES-1
BTPNUMS(I) = BLACS_PNUM( CONTEXT, 0, I )
40 CONTINUE
*
CALL BLACS_GRIDEXIT( CONTEXT )
*
RETURN
*
* End of BTSETUP.
*
END
*
INTEGER FUNCTION IBTMYPROC()
*
* -- BLACS tester (version 1.0) --
* University of Tennessee
* December 15, 1994
*
* Purpose
* =======
* IBTMYPROC: returns a process number between 0 .. NPROCS-1. On
* systems not natively in this numbering scheme, translates to it.
*
* ====================================================================
*
* .. External Functions ..
INTEGER IBTNPROCS
EXTERNAL IBTNPROCS
* ..
* .. Common blocks ..
COMMON /BTPNUM/ BTPNUMS
* ..
* .. Arrays in Common ..
INTEGER BTPNUMS(0:999)
* ..
* .. Local Scalars ..
INTEGER IAM, I, K
* ..
* .. Save statement ..
SAVE IAM
* ..
* .. Data statements ..
DATA IAM /-1/
* ..
* .. Executable Statements ..
*
IF (IAM .EQ. -1) THEN
CALL PVMFMYTID(K)
DO 10 I = 0, IBTNPROCS()-1
IF( K .EQ. BTPNUMS(I) ) IAM = I
10 CONTINUE
END IF
*
IBTMYPROC = IAM
RETURN
*
* End of IBTMYPROC
*
END
*
INTEGER FUNCTION IBTNPROCS()
*
* -- BLACS tester (version 1.0) --
* University of Tennessee
* December 15, 1994
*
* Purpose
* =======
* IBTNPROCS: returns the number of processes in the machine.
*
* ====================================================================
* .. Local Scalars ..
INTEGER IAM, NNODES
* ..
*
* Got to use BLACS, since it set up the machine . . .
*
CALL BLACS_PINFO(IAM, NNODES)
IBTNPROCS = NNODES
*
RETURN
*
* End of IBTNPROCS
*
END
*
SUBROUTINE BTSEND(DTYPE, N, BUFF, DEST, MSGID)
*
* -- BLACS tester (version 1.0) --
* University of Tennessee
* December 15, 1994
*
* .. Scalar Arguments ..
INTEGER N, DTYPE, DEST, MSGID
* ..
* .. Array Arguments ..
REAL BUFF(*)
* ..
*
* PURPOSE
* =======
* BTSEND: Communication primitive used to send messages independent
* of the BLACS. May safely be either locally or globally blocking.
*
* Arguments
* =========
* DTYPE (input) INTEGER
* Indicates what data type BUFF is (same as PVM):
* 1 = RAW BYTES
* 3 = INTEGER
* 4 = SINGLE PRECISION REAL
* 6 = DOUBLE PRECISION REAL
* 5 = SINGLE PRECISION COMPLEX
* 7 = DOUBLE PRECISION COMPLEX
*
* N (input) INTEGER
* The number of elements of type DTYPE in BUFF.
*
* BUFF (input) accepted as INTEGER array
* The array to be communicated. Its true data type is
* indicated by DTYPE.
*
* DEST (input) INTEGER
* The destination of the message.
*
* MSGID (input) INTEGER
* The message ID (AKA message tag or type).
*
* =====================================================================
* .. External Functions ..
INTEGER IBTNPROCS
EXTERNAL IBTNPROCS
* ..
* .. Common blocks ..
COMMON /BTPNUM/ BTPNUMS
* ..
* .. Arrays in Common ..
INTEGER BTPNUMS(0:999)
* ..
* .. Include Files ..
INCLUDE 'fpvm3.h'
* ..
* .. Local Scalars ..
INTEGER INFO, PVMTYPE
* ..
* .. Executable Statements ..
*
* Map internal type parameters to PVM
*
IF( DTYPE .EQ. 1 ) THEN
PVMTYPE = BYTE1
ELSE IF( DTYPE .EQ. 3 ) THEN
PVMTYPE = INTEGER4
ELSE IF( DTYPE .EQ. 4 ) THEN
PVMTYPE = REAL4
ELSE IF( DTYPE .EQ. 5 ) THEN
PVMTYPE = COMPLEX8
ELSE IF( DTYPE .EQ. 6 ) THEN
PVMTYPE = REAL8
ELSE IF( DTYPE .EQ. 7 ) THEN
PVMTYPE = COMPLEX16
END IF
*
* pack and send data to specified process
*
CALL PVMFINITSEND(PVMDATADEFAULT, INFO)
CALL PVMFPACK(DTYPE, BUFF, N, 1, INFO)
IF( DEST .EQ. -1 ) THEN
CALL PVMFMCAST(IBTNPROCS(), BTPNUMS, MSGID, INFO)
ELSE
CALL PVMFSEND(BTPNUMS(DEST) , MSGID, INFO)
ENDIF
*
RETURN
*
* End BTSEND
*
END
*
SUBROUTINE BTRECV(DTYPE, N, BUFF, SRC, MSGID)
*
* -- BLACS tester (version 1.0) --
* University of Tennessee
* December 15, 1994
*
*
* .. Scalar Arguments ..
INTEGER N, DTYPE, SRC, MSGID
* ..
* .. Array Arguments ..
REAL BUFF(*)
* ..
*
* PURPOSE
* =======
* BTRECV: Globally blocking receive.
*
* Arguments
* =========
* DTYPE (input) INTEGER
* Indicates what data type BUFF is:
* 1 = RAW BYTES
* 3 = INTEGER
* 4 = SINGLE PRECISION REAL
* 6 = DOUBLE PRECISION REAL
* 5 = SINGLE PRECISION COMPLEX
* 7 = DOUBLE PRECISION COMPLEX
*
* N (input) INTEGER
* The number of elements of type DTYPE in BUFF.
*
* BUFF (output) INTEGER
* The buffer to receive into.
*
* SRC (input) INTEGER
* The source of the message.
*
* MSGID (input) INTEGER
* The message ID.
*
* =====================================================================
*
* .. Common blocks ..
COMMON /BTPNUM/ BTPNUMS
* ..
* .. Arrays in Common ..
INTEGER BTPNUMS(0:999)
* ..
* .. Include Files ..
INCLUDE 'fpvm3.h'
* ..
* .. Local Scalars ..
INTEGER INFO, PVMTYPE
* ..
* .. Executable Statements ..
*
* Map internal type parameters to PVM
*
IF( DTYPE .EQ. 1 ) THEN
PVMTYPE = BYTE1
ELSE IF( DTYPE .EQ. 3 ) THEN
PVMTYPE = INTEGER4
ELSE IF( DTYPE .EQ. 4 ) THEN
PVMTYPE = REAL4
ELSE IF( DTYPE .EQ. 5 ) THEN
PVMTYPE = COMPLEX8
ELSE IF( DTYPE .EQ. 6 ) THEN
PVMTYPE = REAL8
ELSE IF( DTYPE .EQ. 7 ) THEN
PVMTYPE = COMPLEX16
END IF
CALL PVMFRECV(BTPNUMS(SRC), MSGID, INFO)
CALL PVMFUNPACK(DTYPE, BUFF, N, 1, INFO)
* ..
* .. Local Scalars ..
*
RETURN
*
* End of BTRECV
*
END
*
INTEGER FUNCTION IBTSIZEOF(TYPE)
*
* -- BLACS tester (version 1.0) --
* University of Tennessee
* December 15, 1994
*
* .. Scalar Arguments ..
CHARACTER*1 TYPE
* ..
*
* Purpose
* =======
* IBTSIZEOF: Returns the size, in bytes, of the 5 data types.
* If your platform has a different size for DOUBLE PRECISION, you must
* change the parameter statement in BLACSTEST as well.
*
* Arguments
* =========
* TYPE (input) CHARACTER*1
* The data type who's size is to be determined:
* 'I' : INTEGER
* 'S' : SINGLE PRECISION REAL
* 'D' : DOUBLE PRECISION REAL
* 'C' : SINGLE PRECISION COMPLEX
* 'Z' : DOUBLE PRECISION COMPLEX
*
* =====================================================================
*
* .. External Functions ..
LOGICAL LSAME
EXTERNAL LSAME
* ..
* .. Local Scalars ..
INTEGER LENGTH
* ..
* .. Executable Statements ..
*
IF( LSAME(TYPE, 'I') ) THEN
LENGTH = 4
ELSE IF( LSAME(TYPE, 'S') ) THEN
LENGTH = 4
ELSE IF( LSAME(TYPE, 'D') ) THEN
LENGTH = 8
ELSE IF( LSAME(TYPE, 'C') ) THEN
LENGTH = 8
ELSE IF( LSAME(TYPE, 'Z') ) THEN
LENGTH = 16
END IF
IBTSIZEOF = LENGTH
*
RETURN
END
|
