| 1 |
C $Header: /u/gcmpack/MITgcm/pkg/exch2/exch2_rx2_cube_ad.template,v 1.1 2007/07/27 22:15:23 heimbach Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
#include "CPP_EEOPTIONS.h" |
| 5 |
|
| 6 |
#undef Dbg |
| 7 |
|
| 8 |
CBOP |
| 9 |
C !ROUTINE: EXCH_RX2_CUBE |
| 10 |
|
| 11 |
C !INTERFACE: |
| 12 |
SUBROUTINE EXCH2_RX2_CUBE_AD( |
| 13 |
U array1, array2, signOption, fieldCode, |
| 14 |
I myOLw, myOLe, myOLn, myOLs, myNz, |
| 15 |
I exchWidthX, exchWidthY, |
| 16 |
I simulationMode, cornerMode, myThid ) |
| 17 |
IMPLICIT NONE |
| 18 |
|
| 19 |
C !DESCRIPTION: |
| 20 |
|
| 21 |
C !USES: |
| 22 |
C == Global data == |
| 23 |
#include "SIZE.h" |
| 24 |
#include "EEPARAMS.h" |
| 25 |
#include "EESUPPORT.h" |
| 26 |
#include "EXCH.h" |
| 27 |
#include "W2_EXCH2_TOPOLOGY.h" |
| 28 |
#include "W2_EXCH2_PARAMS.h" |
| 29 |
|
| 30 |
C !INPUT/OUTPUT PARAMETERS: |
| 31 |
C array :: Array with edges to exchange. |
| 32 |
C myOLw :: West, East, North and South overlap region sizes. |
| 33 |
C myOLe |
| 34 |
C myOLn |
| 35 |
C myOLs |
| 36 |
C exchWidthX :: Width of data region exchanged in X. |
| 37 |
C exchWidthY :: Width of data region exchanged in Y. |
| 38 |
C myThid :: Thread number of this instance of S/R EXCH... |
| 39 |
LOGICAL signOption |
| 40 |
CHARACTER*2 fieldCode |
| 41 |
INTEGER myOLw |
| 42 |
INTEGER myOLe |
| 43 |
INTEGER myOLs |
| 44 |
INTEGER myOLn |
| 45 |
INTEGER myNz |
| 46 |
INTEGER exchWidthX |
| 47 |
INTEGER exchWidthY |
| 48 |
INTEGER simulationMode |
| 49 |
INTEGER cornerMode |
| 50 |
INTEGER myThid |
| 51 |
_RX array1(1-myOLw:sNx+myOLe, |
| 52 |
& 1-myOLs:sNy+myOLn, |
| 53 |
& myNZ, nSx, nSy) |
| 54 |
_RX array2(1-myOLw:sNx+myOLe, |
| 55 |
& 1-myOLs:sNy+myOLn, |
| 56 |
& myNZ, nSx, nSy) |
| 57 |
|
| 58 |
C !LOCAL VARIABLES: |
| 59 |
C theSimulationMode :: Holds working copy of simulation mode |
| 60 |
C theCornerMode :: Holds working copy of corner mode |
| 61 |
C I,J,K,bl,bt,bn,bs :: Loop and index counters |
| 62 |
C be,bw |
| 63 |
INTEGER theSimulationMode |
| 64 |
INTEGER theCornerMode |
| 65 |
c INTEGER I,J,K |
| 66 |
c INTEGER bl,bt,bn,bs,be,bw |
| 67 |
INTEGER I |
| 68 |
C Variables for working through W2 topology |
| 69 |
INTEGER e2_msgHandles(2,MAX_NEIGHBOURS, nSx) |
| 70 |
INTEGER thisTile, farTile, N, nN, oN |
| 71 |
INTEGER tIlo, tIhi, tJlo, tJhi, tKlo, tKhi |
| 72 |
INTEGER tIStride, tJStride, tKStride |
| 73 |
INTEGER i1Lo, i1Hi, j1Lo, j1Hi, k1Lo, k1Hi |
| 74 |
INTEGER i2Lo, i2Hi, j2Lo, j2Hi, k2Lo, k2Hi |
| 75 |
C == Statement function == |
| 76 |
C tilemod - Permutes indices to return neighboring tile index on |
| 77 |
C six face cube. |
| 78 |
c INTEGER tilemod |
| 79 |
|
| 80 |
C MPI stuff (should be in a routine call) |
| 81 |
#ifdef ALLOW_USE_MPI |
| 82 |
INTEGER mpiStatus(MPI_STATUS_SIZE) |
| 83 |
INTEGER mpiRc |
| 84 |
INTEGER wHandle |
| 85 |
#endif |
| 86 |
CEOP |
| 87 |
|
| 88 |
theSimulationMode = simulationMode |
| 89 |
theCornerMode = cornerMode |
| 90 |
|
| 91 |
C For now tile<->tile exchanges are sequentialised through |
| 92 |
C thread 1. This is a temporary feature for preliminary testing until |
| 93 |
C general tile decomposistion is in place (CNH April 11, 2001) |
| 94 |
CALL BAR2( myThid ) |
| 95 |
|
| 96 |
C Receive messages or extract buffer copies |
| 97 |
DO I=myBxLo(myThid), myBxHi(myThid) |
| 98 |
thisTile=W2_myTileList(I) |
| 99 |
nN=exch2_nNeighbours(thisTile) |
| 100 |
CRG communication depends on order!!! |
| 101 |
CRG DO N=1,nN |
| 102 |
DO N=nN,1,-1 |
| 103 |
farTile=exch2_neighbourId(N,thisTile) |
| 104 |
tIlo =exch2_iLo(N,thisTile) |
| 105 |
tIhi =exch2_iHi(N,thisTile) |
| 106 |
tJlo =exch2_jLo(N,thisTile) |
| 107 |
tJhi =exch2_jHi(N,thisTile) |
| 108 |
CALL EXCH2_GET_RECV_BOUNDS( |
| 109 |
I fieldCode, exchWidthX, |
| 110 |
O tiStride, tjStride, |
| 111 |
U tIlo, tiHi, tjLo, tjHi ) |
| 112 |
tKLo=1 |
| 113 |
tKHi=myNz |
| 114 |
tKStride=1 |
| 115 |
i1Lo = 1-myOLw |
| 116 |
i1Hi = sNx+myOLe |
| 117 |
j1Lo = 1-myOLs |
| 118 |
j1Hi = sNy+myOLs |
| 119 |
k1Lo = 1 |
| 120 |
k1Hi = myNz |
| 121 |
i2Lo = 1-myOLw |
| 122 |
i2Hi = sNx+myOLe |
| 123 |
j2Lo = 1-myOLs |
| 124 |
j2Hi = sNy+myOLs |
| 125 |
k2Lo = 1 |
| 126 |
k2Hi = myNz |
| 127 |
C Receive from neighbour N to fill my points |
| 128 |
C (tIlo:tIhi:tiStride,tJlo:tJhi,tJStride,tKlo:tKhi,tKStride) |
| 129 |
C in "array". |
| 130 |
C Note: when transferring data within a process: |
| 131 |
C o e2Bufr entry to read is entry associated with opposing send record |
| 132 |
C o e2_msgHandle entry to read is entry associated with opposing send |
| 133 |
C record. |
| 134 |
CALL EXCH2_RECV_RX2_AD( |
| 135 |
I tIlo, tIhi, tiStride, |
| 136 |
I tJlo, tJhi, tjStride, |
| 137 |
I tKlo, tKhi, tkStride, |
| 138 |
I thisTile, I, N, |
| 139 |
I e2Bufr1_RX, e2Bufr2_RX, e2BufrRecSize, |
| 140 |
I MAX_NEIGHBOURS, nSx, |
| 141 |
I array1(1-myOLw,1-myOLs,1,I,1), |
| 142 |
I i1Lo, i1Hi, j1Lo, j1Hi, k1Lo, k1Hi, |
| 143 |
I array2(1-myOLw,1-myOLs,1,I,1), |
| 144 |
I i2Lo, i2Hi, j2Lo, j2Hi, k2Lo, k2Hi, |
| 145 |
O e2_msgHandles(1,N,I), |
| 146 |
O e2_msgHandles(2,N,I), |
| 147 |
I W2_myTileList, |
| 148 |
I W2_myCommFlag(N,I), |
| 149 |
I myThid ) |
| 150 |
ENDDO |
| 151 |
ENDDO |
| 152 |
|
| 153 |
C without MPI: wait until all threads finish filling buffer |
| 154 |
CALL BAR2( myThid ) |
| 155 |
|
| 156 |
C Post sends as messages or buffer copies |
| 157 |
DO I=myBxLo(myThid), myBxHi(myThid) |
| 158 |
thisTile=W2_myTileList(I) |
| 159 |
nN=exch2_nNeighbours(thisTile) |
| 160 |
DO N=1,nN |
| 161 |
farTile=exch2_neighbourId(N,thisTile) |
| 162 |
oN=exch2_opposingSend(N,thisTile) |
| 163 |
tIlo =exch2_iLo(oN,farTile) |
| 164 |
tIhi =exch2_iHi(oN,farTile) |
| 165 |
tJlo =exch2_jLo(oN,farTile) |
| 166 |
tJhi =exch2_jHi(oN,farTile) |
| 167 |
CALL EXCH2_GET_SEND_BOUNDS( |
| 168 |
I fieldCode, exchWidthX, |
| 169 |
O tiStride, tjStride, |
| 170 |
U tIlo, tiHi, tjLo, tjHi ) |
| 171 |
tKLo=1 |
| 172 |
tKHi=myNz |
| 173 |
tKStride=1 |
| 174 |
i1Lo = 1-myOLw |
| 175 |
i1Hi = sNx+myOLe |
| 176 |
j1Lo = 1-myOLs |
| 177 |
j1Hi = sNy+myOLs |
| 178 |
k1Lo = 1 |
| 179 |
k1Hi = myNz |
| 180 |
i2Lo = 1-myOLw |
| 181 |
i2Hi = sNx+myOLe |
| 182 |
j2Lo = 1-myOLs |
| 183 |
j2Hi = sNy+myOLs |
| 184 |
k2Lo = 1 |
| 185 |
k2Hi = myNz |
| 186 |
C Send to neighbour N to fill neighbor points |
| 187 |
C (tIlo:tIhi:tiStride,tJlo:tJhi,tJStride,tKlo:tKhi,tKStride) |
| 188 |
C in its copy of "array". |
| 189 |
CALL EXCH2_SEND_RX2_AD( |
| 190 |
I tIlo, tIhi, tiStride, |
| 191 |
I tJlo, tJhi, tjStride, |
| 192 |
I tKlo, tKhi, tkStride, |
| 193 |
I thisTile, N, |
| 194 |
I e2Bufr1_RX(1,N,I,1), e2BufrRecSize, |
| 195 |
I e2Bufr2_RX(1,N,I,1), |
| 196 |
I array1(1-myOLw,1-myOLs,1,I,1), |
| 197 |
I i1Lo, i1Hi, j1Lo, j1Hi, k1Lo, k1Hi, |
| 198 |
I array2(1-myOLw,1-myOLs,1,I,1), |
| 199 |
I i2Lo, i2Hi, j2Lo, j2Hi, k2Lo, k2Hi, |
| 200 |
O e2_msgHandles(1,N,I), |
| 201 |
O e2_msgHandles(2,N,I), |
| 202 |
I W2_myCommFlag(N,I), signOption, |
| 203 |
I myThid ) |
| 204 |
ENDDO |
| 205 |
ENDDO |
| 206 |
|
| 207 |
C Clear message handles/locks |
| 208 |
DO I=1,nSx |
| 209 |
thisTile=W2_myTileList(I) |
| 210 |
nN=exch2_nNeighbours(thisTile) |
| 211 |
DO N=1,nN |
| 212 |
C Note: In a between process tile-tile data transport using |
| 213 |
C MPI the sender needs to clear an Isend wait handle here. |
| 214 |
C In a within process tile-tile data transport using true |
| 215 |
C shared address space/or direct transfer through commonly |
| 216 |
C addressable memory blocks the receiver needs to assert |
| 217 |
C that is has consumed the buffer the sender filled here. |
| 218 |
farTile=exch2_neighbourId(N,thisTile) |
| 219 |
IF ( W2_myCommFlag(N,I) .EQ. 'M' ) THEN |
| 220 |
#ifdef ALLOW_USE_MPI |
| 221 |
wHandle = e2_msgHandles(1,N,I) |
| 222 |
CALL MPI_Wait( wHandle, mpiStatus, mpiRc ) |
| 223 |
wHandle = e2_msgHandles(2,N,I) |
| 224 |
CALL MPI_Wait( wHandle, mpiStatus, mpiRc ) |
| 225 |
#endif |
| 226 |
ELSEIF ( W2_myCommFlag(N,I) .EQ. 'P' ) THEN |
| 227 |
ELSE |
| 228 |
ENDIF |
| 229 |
ENDDO |
| 230 |
ENDDO |
| 231 |
|
| 232 |
CALL BAR2(myThid) |
| 233 |
|
| 234 |
RETURN |
| 235 |
END |
| 236 |
|
| 237 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 238 |
|
| 239 |
CEH3 ;;; Local Variables: *** |
| 240 |
CEH3 ;;; mode:fortran *** |
| 241 |
CEH3 ;;; End: *** |
Parent Directory
| 
Revision Log
| 
Revision Graph