| 1 |
ce107 |
1.1 |
SUBROUTINE INI_MP |
| 2 |
|
|
|
| 3 |
|
|
C Initialise multi-processing |
| 4 |
|
|
IMPLICIT NONE |
| 5 |
|
|
|
| 6 |
|
|
C == Global data == |
| 7 |
|
|
#include "SIZE.h" |
| 8 |
|
|
#include "EEPARAMS.h" |
| 9 |
|
|
|
| 10 |
|
|
#include "JAM_INFO.h" |
| 11 |
|
|
#include "MPI_INFO.h" |
| 12 |
|
|
|
| 13 |
|
|
#ifdef ALLOW_MPI |
| 14 |
|
|
#include "mpif.h" |
| 15 |
|
|
#endif |
| 16 |
|
|
|
| 17 |
|
|
C == Local variables == |
| 18 |
|
|
Real*8 dummyVal |
| 19 |
|
|
INTEGER rc |
| 20 |
|
|
CHARACTER*(MAX_LEN_FNAM) fnam |
| 21 |
|
|
INTEGER myTwoProcRank |
| 22 |
|
|
|
| 23 |
|
|
myXGlobalLo =1 |
| 24 |
|
|
myYGlobalLo =1 |
| 25 |
|
|
myProcId =0 |
| 26 |
|
|
numberOfProcs =1 |
| 27 |
|
|
Nx = sNx |
| 28 |
|
|
Ny = sNy |
| 29 |
|
|
standardMessageUnit=6 |
| 30 |
|
|
|
| 31 |
|
|
#ifdef USE_MPI_INIT |
| 32 |
|
|
C MPI Initialisation |
| 33 |
|
|
CALL MPI_INIT( rc ) |
| 34 |
|
|
C Get my proc. number |
| 35 |
|
|
CALL MPI_COMM_RANK( MPI_COMM_WORLD, mpi_pid, rc ) |
| 36 |
|
|
C Get total count of procs. |
| 37 |
|
|
CALL MPI_COMM_SIZE( MPI_COMM_WORLD, mpi_np , rc ) |
| 38 |
|
|
|
| 39 |
|
|
C Set up connectivity |
| 40 |
|
|
mpi_northId = mpi_pid+1 |
| 41 |
|
|
IF ( mpi_northId .EQ. mpi_np ) mpi_northId = 0 |
| 42 |
|
|
mpi_southId = mpi_pid-1 |
| 43 |
|
|
IF ( mpi_southId .LT. 0 ) mpi_southId = mpi_np-1 |
| 44 |
|
|
|
| 45 |
|
|
numberOfProcs = mpi_np |
| 46 |
|
|
myProcId = mpi_pid |
| 47 |
|
|
|
| 48 |
|
|
#endif |
| 49 |
|
|
|
| 50 |
|
|
|
| 51 |
|
|
#ifdef USE_JAM_INIT |
| 52 |
|
|
C JAM initialisation. This should work with or without |
| 53 |
|
|
C MPI. If we don't use MPI we have to start procs. by hand |
| 54 |
|
|
C though! |
| 55 |
|
|
|
| 56 |
|
|
myTwoProcRank=MOD(myProcId,2) |
| 57 |
|
|
IF ( myTwoProcRank .EQ. 0 ) THEN |
| 58 |
|
|
myTwoProcRank = 1 |
| 59 |
|
|
ELSE |
| 60 |
|
|
myTwoProcRank = 0 |
| 61 |
|
|
ENDIF |
| 62 |
|
|
CALL JAM_collective_init( myTwoProcRank ) |
| 63 |
|
|
|
| 64 |
|
|
CALL GET_JAM_self_address( jam_pid ) |
| 65 |
|
|
CALL GET_JAM_partition_size( jam_np ) |
| 66 |
|
|
jam_exchKey = 100 |
| 67 |
|
|
dummyVal = 0. |
| 68 |
|
|
CALL JAM_barrier_start( dummyVal ) |
| 69 |
|
|
CALL JAM_barrier_done( dummyVal ) |
| 70 |
|
|
|
| 71 |
|
|
C Set up connectivity |
| 72 |
|
|
jam_northId = jam_pid+1 |
| 73 |
|
|
IF ( jam_northId .EQ. jam_np ) jam_northId = 0 |
| 74 |
|
|
jam_southId = jam_pid-1 |
| 75 |
|
|
IF ( jam_southId .LT. 0 ) jam_southId = jam_np-1 |
| 76 |
|
|
|
| 77 |
|
|
numberOfProcs = jam_np |
| 78 |
|
|
myProcId = jam_pid |
| 79 |
|
|
|
| 80 |
|
|
mpi_northId = jam_northId |
| 81 |
|
|
mpi_southId = jam_southId |
| 82 |
|
|
|
| 83 |
|
|
#endif |
| 84 |
|
|
|
| 85 |
|
|
myYGlobalLo = myProcId*sNy+1 |
| 86 |
|
|
Ny = numberOfProcs*sNy |
| 87 |
|
|
|
| 88 |
|
|
IF ( numberOfProcs .GT. 1 ) THEN |
| 89 |
|
|
WRITE(fnam,'(A7,I6.6)') 'STDOUT.',myProcId |
| 90 |
|
|
OPEN(UNIT=standardMessageUnit,FILE=fnam) |
| 91 |
|
|
ENDIF |
| 92 |
|
|
|
| 93 |
|
|
|
| 94 |
|
|
RETURN |
| 95 |
|
|
END |
Parent Directory
| 
Revision Log
| 
Revision Graph