| 1 |
C $Header: /u/gcmpack/MITgcm_contrib/eh3_spgr/hs94.cs-32x32x5/code_v2/w2_eeboot.F,v 1.2 2005/09/24 19:38:18 edhill Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
#include "CPP_EEOPTIONS.h" |
| 5 |
|
| 6 |
CBOP |
| 7 |
C !ROUTINE: W2_EEBOOT |
| 8 |
|
| 9 |
C !INTERFACE: |
| 10 |
SUBROUTINE W2_EEBOOT |
| 11 |
IMPLICIT NONE |
| 12 |
|
| 13 |
C !DESCRIPTION: |
| 14 |
C *==========================================================* |
| 15 |
C | SUBROUTINE W2_EEBOOT |
| 16 |
C | o Setup execution "environment" for WRAPPER2 |
| 17 |
C *==========================================================* |
| 18 |
C | WRAPPER2 provides complex topology support. In this routine |
| 19 |
C | we setup the base topology for the default halo operations. |
| 20 |
C *==========================================================* |
| 21 |
#include "SIZE.h" |
| 22 |
#include "EEPARAMS.h" |
| 23 |
#include "EESUPPORT.h" |
| 24 |
#include "W2_EXCH2_TOPOLOGY.h" |
| 25 |
#include "W2_EXCH2_PARAMS.h" |
| 26 |
|
| 27 |
C == Local variables == |
| 28 |
INTEGER nt_check, nt_perproc |
| 29 |
INTEGER thisPtileLo, thisPtileHi |
| 30 |
CHARACTER*(MAX_LEN_MBUF) msgBuffer |
| 31 |
CHARACTER commFlag |
| 32 |
INTEGER myTileId |
| 33 |
INTEGER myThid, I, J, II |
| 34 |
INTEGER iErr, tNx, tNy |
| 35 |
INTEGER pRank |
| 36 |
#ifdef ALLOW_USE_MPI |
| 37 |
INTEGER npe,itemp(nSx),mpiBufSize,mpiRequest |
| 38 |
INTEGER istatus(MPI_STATUS_SIZE) |
| 39 |
#endif |
| 40 |
|
| 41 |
C Set dummy myThid value (we are not multi-threaded here) |
| 42 |
myThid = 1 |
| 43 |
|
| 44 |
IF ( W2_read_acsii_topo ) THEN |
| 45 |
CALL W2_READ_ATOPO |
| 46 |
ELSE |
| 47 |
C Define toplogy for every tile |
| 48 |
CALL W2_E2SETUP |
| 49 |
ENDIF |
| 50 |
|
| 51 |
C Decide which tiles this process handles - do this inline for now, but |
| 52 |
C should go in subroutine. |
| 53 |
C Total number of tiles should be divisible by nPx and nSx |
| 54 |
C ( there is no two dimensional decomposition for W2 ) and |
| 55 |
C number of tiles per process should be nSx |
| 56 |
nt_check = NTILES/(nPx*nSx) |
| 57 |
nt_check = nt_check*nPx*nSx |
| 58 |
IF ( nt_check .NE. NTILES ) THEN |
| 59 |
STOP |
| 60 |
&'ERROR: W2_EEBOOT number of tiles is not divisible by nPx*nSx' |
| 61 |
ENDIF |
| 62 |
nt_perproc = NTILES/nPx |
| 63 |
IF ( nt_perproc .NE. nSx ) THEN |
| 64 |
STOP |
| 65 |
&'ERROR: W2_EEBOOT tiles per process is not equal to nSx' |
| 66 |
ENDIF |
| 67 |
C Number of tiles I handle is nSx, range of tile numbers I handle |
| 68 |
C depends on my rank. |
| 69 |
#ifdef ALLOW_USE_MPI |
| 70 |
thisPtileLo = myPid*nt_perproc+1 |
| 71 |
thisPtileHi = (myPid+1)*nt_perproc |
| 72 |
#else |
| 73 |
thisPtileLo = 1 |
| 74 |
thisPtileHi = nt_perproc |
| 75 |
#endif |
| 76 |
DO I=thisPtileLo, thisPtileHi |
| 77 |
W2_myTileList(I-thisPtileLo+1)=I |
| 78 |
ENDDO |
| 79 |
iErr = 0 |
| 80 |
|
| 81 |
DO I=1,nSx |
| 82 |
C Check tile sizes |
| 83 |
myTileId = W2_myTileList(I) |
| 84 |
tnx = exch2_tnx(myTileId) |
| 85 |
tny = exch2_tny(myTileId) |
| 86 |
IF ( tnx .NE. sNx ) THEN |
| 87 |
WRITE(msgBuffer,'(A,I4,A,I4)') |
| 88 |
& 'ERROR: S/R W2_EEBOOT Topology tnx=', |
| 89 |
& tnx, |
| 90 |
& ' is not equal to subgrid size sNx=', |
| 91 |
& sNx |
| 92 |
CALL PRINT_MESSAGE(msgBuffer, |
| 93 |
& errorMessageUnit, SQUEEZE_RIGHT, 1 ) |
| 94 |
iErr = iErr+1 |
| 95 |
ENDIF |
| 96 |
IF ( tny .NE. sNy ) THEN |
| 97 |
WRITE(msgBuffer,'(A,I4,A,I4,A,I4)') |
| 98 |
& 'ERROR: S/R W2_EEBOOT Topology for tile ',myTileId, |
| 99 |
& ' tny=', |
| 100 |
& tny, |
| 101 |
& ' is not equal to subgrid size sNy=', |
| 102 |
& sNy |
| 103 |
CALL PRINT_MESSAGE(msgBuffer, |
| 104 |
& errorMessageUnit, SQUEEZE_RIGHT, 1 ) |
| 105 |
iErr = iErr+1 |
| 106 |
ENDIF |
| 107 |
ENDDO |
| 108 |
IF ( iErr .NE. 0 ) THEN |
| 109 |
STOP 'ABNORMAL END: W2_EEBOOT' |
| 110 |
ENDIF |
| 111 |
|
| 112 |
C Set which rank processes "own" which tiles. This should probably |
| 113 |
C be queried as part of some hand-shaking but for now we use the |
| 114 |
C functiional relationship that was used above. |
| 115 |
DO I=1,nTiles |
| 116 |
pRank = (I-1)/nt_perproc |
| 117 |
exch2_tProc(I) = pRank+1 |
| 118 |
ENDDO |
| 119 |
|
| 120 |
WRITE(msgBuffer,'(A)') '===== W2 TILE TOPLOGY =====' |
| 121 |
CALL PRINT_MESSAGE(msgBuffer,standardMessageUnit, |
| 122 |
& SQUEEZE_BOTH,myThid) |
| 123 |
DO I=1,nSx |
| 124 |
myTileId = W2_myTileList(I) |
| 125 |
WRITE(msgBuffer,'(A,I4)') ' TILE: ', myTileId |
| 126 |
CALL PRINT_MESSAGE(msgBuffer,standardMessageUnit, |
| 127 |
& SQUEEZE_RIGHT,myThid) |
| 128 |
DO J=1,exch2_nNeighbours(myTileId) |
| 129 |
commFlag = 'M' |
| 130 |
DO II=1,nSx |
| 131 |
IF ( W2_myTileList(II) .EQ. exch2_neighbourId(J,myTileId) ) |
| 132 |
& commFlag = 'P' |
| 133 |
ENDDO |
| 134 |
IF ( commFlag .EQ. 'M' ) THEN |
| 135 |
WRITE(msgBuffer,'(A,I4,A,I4,A,A,I4,A)') |
| 136 |
& ' NEIGHBOUR ',J,' = TILE ', |
| 137 |
& exch2_neighbourId(J,myTileId), ' Comm = MSG', |
| 138 |
& ' ( PROC = ',exch2_tProc(exch2_neighbourId(J,myTileId)),')' |
| 139 |
CALL PRINT_MESSAGE(msgBuffer,standardMessageUnit, |
| 140 |
& SQUEEZE_RIGHT,myThid) |
| 141 |
ENDIF |
| 142 |
IF ( commFlag .EQ. 'P' ) THEN |
| 143 |
WRITE(msgBuffer,'(A,I4,A,I4,A,A,I4,A)') |
| 144 |
& ' NEIGHBOUR ',J,' = TILE ', |
| 145 |
& exch2_neighbourId(J,myTileId), ' Comm = PUT', |
| 146 |
& ' ( PROC = ',exch2_tProc(exch2_neighbourId(J,myTileId)),')' |
| 147 |
CALL PRINT_MESSAGE(msgBuffer,standardMessageUnit, |
| 148 |
& SQUEEZE_RIGHT,myThid) |
| 149 |
ENDIF |
| 150 |
W2_myCommFlag(J,I) = commFlag |
| 151 |
ENDDO |
| 152 |
ENDDO |
| 153 |
|
| 154 |
C Fill in values for W2_mpi_myTileList |
| 155 |
#ifdef ALLOW_USE_MPI |
| 156 |
mpiBufSize=nSx |
| 157 |
mpiRequest=0 |
| 158 |
DO npe = 0, numberOfProcs-1 |
| 159 |
CALL MPI_ISEND (W2_myTileList, mpiBufSize, MPI_INTEGER, |
| 160 |
& npe, mpiMyId, MPI_COMM_MODEL, mpiRequest, ierr) |
| 161 |
ENDDO |
| 162 |
DO npe = 0, numberOfProcs-1 |
| 163 |
CALL MPI_RECV (itemp, mpiBufSize, MPI_INTEGER, |
| 164 |
& npe, npe, MPI_COMM_MODEL, istatus, ierr) |
| 165 |
DO I=1,nSx |
| 166 |
W2_mpi_myTileList(npe+1,I)=itemp(I) |
| 167 |
ENDDO |
| 168 |
ENDDO |
| 169 |
#else /* ALLOW_USE_MPI */ |
| 170 |
DO I=1,nSx |
| 171 |
W2_mpi_myTileList(1,I)=W2_myTileList(I) |
| 172 |
ENDDO |
| 173 |
#endif /* ALLOW_USE_MPI */ |
| 174 |
|
| 175 |
C Set filling value for face-corner halo regions |
| 176 |
e2FillValue_RL = 0. _d 0 |
| 177 |
e2FillValue_RS = 0. _d 0 |
| 178 |
e2FillValue_R4 = 0.e0 |
| 179 |
e2FillValue_R8 = 0.d0 |
| 180 |
C- for testing only: put a large value (should not affects the results) |
| 181 |
c e2FillValue_RL = 1. _d+20 |
| 182 |
c e2FillValue_RS = 1. _d+20 |
| 183 |
c e2FillValue_R4 = 1.e+20 |
| 184 |
c e2FillValue_R8 = 1.d+20 |
| 185 |
|
| 186 |
|
| 187 |
#ifdef ALLOW_USE_MPI |
| 188 |
IF ( myPid .EQ. 0 ) THEN |
| 189 |
CALL W2_WRITE_ATOPO |
| 190 |
ENDIF |
| 191 |
#else |
| 192 |
CALL W2_WRITE_ATOPO |
| 193 |
#endif |
| 194 |
|
| 195 |
C Print out the topology communication schedule |
| 196 |
CALL W2_PRINT_COMM_SEQUENCE |
| 197 |
C |
| 198 |
RETURN |
| 199 |
END |
Parent Directory
| 
Revision Log
| 
Revision Graph