| 1 |
jmc |
1.6 |
C $Header: /u/gcmpack/MITgcm/eesupp/src/exch_rx.template,v 1.5 2005/11/07 18:21:11 cnh Exp $ |
| 2 |
cnh |
1.3 |
C $Name: $ |
| 3 |
adcroft |
1.2 |
|
| 4 |
|
|
#include "CPP_EEOPTIONS.h" |
| 5 |
|
|
|
| 6 |
cnh |
1.3 |
CBOP |
| 7 |
|
|
|
| 8 |
|
|
C !ROUTINE: EXCH_RX |
| 9 |
|
|
|
| 10 |
|
|
C !INTERFACE: |
| 11 |
jmc |
1.6 |
SUBROUTINE EXCH_RX( |
| 12 |
adcroft |
1.2 |
U array, |
| 13 |
|
|
I myOLw, myOLe, myOLs, myOLn, myNz, |
| 14 |
|
|
I exchWidthX, exchWidthY, |
| 15 |
|
|
I simulationMode, cornerMode, myThid ) |
| 16 |
|
|
IMPLICIT NONE |
| 17 |
|
|
|
| 18 |
cnh |
1.3 |
C !DESCRIPTION: |
| 19 |
|
|
C *==========================================================* |
| 20 |
jmc |
1.6 |
C | SUBROUTINE EXCH_RX |
| 21 |
|
|
C | o Control edge exchanges for RX array. |
| 22 |
cnh |
1.3 |
C *==========================================================* |
| 23 |
jmc |
1.6 |
C | |
| 24 |
|
|
C | Controlling routine for exchange of XY edges of an array |
| 25 |
|
|
C | distributed in X and Y. The routine interfaces to |
| 26 |
|
|
C | communication routines that can use messages passing |
| 27 |
|
|
C | exchanges, put type exchanges or get type exchanges. |
| 28 |
|
|
C | This allows anything from MPI to raw memory channel to |
| 29 |
|
|
C | memmap segments to be used as a inter-process and/or |
| 30 |
|
|
C | inter-thread communiation and synchronisation |
| 31 |
|
|
C | mechanism. |
| 32 |
|
|
C | Notes -- |
| 33 |
|
|
C | 1. Some low-level mechanisms such as raw memory-channel |
| 34 |
|
|
C | or SGI/CRAY shmem put do not have direct Fortran bindings |
| 35 |
|
|
C | and are invoked through C stub routines. |
| 36 |
|
|
C | 2. Although this routine is fairly general but it does |
| 37 |
|
|
C | require nSx and nSy are the same for all innvocations. |
| 38 |
|
|
C | There are many common data structures ( myByLo, |
| 39 |
|
|
C | westCommunicationMode, mpiIdW etc... ) tied in with |
| 40 |
|
|
C | (nSx,nSy). To support arbitray nSx and nSy would require |
| 41 |
|
|
C | general forms of these. |
| 42 |
cnh |
1.3 |
C | 3. RX arrays are used to generate code for both _RL and |
| 43 |
jmc |
1.6 |
C | _RS forms. |
| 44 |
cnh |
1.3 |
C *==========================================================* |
| 45 |
|
|
|
| 46 |
|
|
C !USES: |
| 47 |
adcroft |
1.2 |
C == Global data == |
| 48 |
|
|
#include "SIZE.h" |
| 49 |
|
|
#include "EEPARAMS.h" |
| 50 |
|
|
#include "EESUPPORT.h" |
| 51 |
|
|
#include "EXCH.h" |
| 52 |
|
|
|
| 53 |
cnh |
1.3 |
C !INPUT/OUTPUT PARAMETERS: |
| 54 |
adcroft |
1.2 |
C == Routine arguments == |
| 55 |
cnh |
1.3 |
C array :: Array with edges to exchange. |
| 56 |
|
|
C myOLw :: West, East, North and South overlap region sizes. |
| 57 |
adcroft |
1.2 |
C myOLe |
| 58 |
|
|
C myOLn |
| 59 |
|
|
C myOLs |
| 60 |
cnh |
1.3 |
C exchWidthX :: Width of data region exchanged in X. |
| 61 |
|
|
C exchWidthY :: Width of data region exchanged in Y. |
| 62 |
jmc |
1.6 |
C Note -- |
| 63 |
cnh |
1.3 |
C 1. In theory one could have a send width and |
| 64 |
|
|
C a receive width for each face of each tile. The only |
| 65 |
|
|
C restriction woul be that the send width of one |
| 66 |
|
|
C face should equal the receive width of the sent to |
| 67 |
jmc |
1.6 |
C tile face. Dont know if this would be useful. I |
| 68 |
|
|
C have left it out for now as it requires additional |
| 69 |
cnh |
1.3 |
C bookeeping. |
| 70 |
jmc |
1.6 |
C simulationMode :: Forward or reverse mode exchange ( provides |
| 71 |
cnh |
1.3 |
C support for adjoint integration of code. ) |
| 72 |
jmc |
1.6 |
C cornerMode :: Flag indicating whether corner updates are |
| 73 |
cnh |
1.3 |
C needed. |
| 74 |
|
|
C myThid :: Thread number of this instance of S/R EXCH... |
| 75 |
adcroft |
1.2 |
INTEGER myOLw |
| 76 |
|
|
INTEGER myOLe |
| 77 |
|
|
INTEGER myOLs |
| 78 |
|
|
INTEGER myOLn |
| 79 |
|
|
INTEGER myNz |
| 80 |
|
|
INTEGER exchWidthX |
| 81 |
|
|
INTEGER exchWidthY |
| 82 |
|
|
INTEGER simulationMode |
| 83 |
|
|
INTEGER cornerMode |
| 84 |
|
|
INTEGER myThid |
| 85 |
|
|
_RX array(1-myOLw:sNx+myOLe, |
| 86 |
jmc |
1.6 |
& 1-myOLs:sNy+myOLn, |
| 87 |
adcroft |
1.2 |
& myNZ, nSx, nSy) |
| 88 |
|
|
|
| 89 |
cnh |
1.3 |
C !LOCAL VARIABLES: |
| 90 |
adcroft |
1.2 |
C == Local variables == |
| 91 |
cnh |
1.3 |
C theSimulationMode :: Holds working copy of simulation mode |
| 92 |
|
|
C theCornerMode :: Holds working copy of corner mode |
| 93 |
jmc |
1.6 |
C i,j,k,bi,bj :: Loop counters |
| 94 |
adcroft |
1.2 |
INTEGER theSimulationMode |
| 95 |
|
|
INTEGER theCornerMode |
| 96 |
jmc |
1.6 |
INTEGER i,j,k,bi,bj |
| 97 |
cnh |
1.3 |
CEOP |
| 98 |
adcroft |
1.2 |
|
| 99 |
cnh |
1.5 |
_BARRIER |
| 100 |
|
|
|
| 101 |
adcroft |
1.2 |
theSimulationMode = simulationMode |
| 102 |
|
|
theCornerMode = cornerMode |
| 103 |
|
|
|
| 104 |
|
|
C-- Error checks |
| 105 |
jmc |
1.6 |
IF ( exchWidthX .GT. myOLw ) |
| 106 |
adcroft |
1.2 |
& STOP ' S/R EXCH_RX: exchWidthX .GT. myOLw' |
| 107 |
jmc |
1.6 |
IF ( exchWidthX .GT. myOLe ) |
| 108 |
adcroft |
1.2 |
& STOP ' S/R EXCH_RX: exchWidthX .GT. myOLe' |
| 109 |
jmc |
1.6 |
IF ( exchWidthY .GT. myOLs ) |
| 110 |
adcroft |
1.2 |
& STOP ' S/R EXCH_RX: exchWidthY .GT. myOLs' |
| 111 |
jmc |
1.6 |
IF ( exchWidthY .GT. myOLn ) |
| 112 |
adcroft |
1.2 |
& STOP ' S/R EXCH_RX: exchWidthY .GT. myOLn' |
| 113 |
jmc |
1.6 |
IF ( myOLw .GT. MAX_OLX_EXCH ) |
| 114 |
adcroft |
1.2 |
& STOP ' S/R EXCH_RX: myOLw .GT. MAX_OLX_EXCH' |
| 115 |
jmc |
1.6 |
IF ( myOLe .GT. MAX_OLX_EXCH ) |
| 116 |
adcroft |
1.2 |
& STOP ' S/R EXCH_RX: myOLe .GT. MAX_OLX_EXCH' |
| 117 |
jmc |
1.6 |
IF ( myOLn .GT. MAX_OLX_EXCH ) |
| 118 |
adcroft |
1.2 |
& STOP ' S/R EXCH_RX: myOLn .GT. MAX_OLY_EXCH' |
| 119 |
jmc |
1.6 |
IF ( myOLs .GT. MAX_OLY_EXCH ) |
| 120 |
adcroft |
1.2 |
& STOP ' S/R EXCH_RX: myOLs .GT. MAX_OLY_EXCH' |
| 121 |
jmc |
1.6 |
IF ( myNZ .GT. MAX_NR_EXCH ) |
| 122 |
adcroft |
1.2 |
& STOP ' S/R EXCH_RX: myNZ .GT. MAX_NR_EXCH ' |
| 123 |
|
|
IF ( theSimulationMode .NE. FORWARD_SIMULATION |
| 124 |
|
|
& .AND. theSimulationMode .NE. REVERSE_SIMULATION |
| 125 |
|
|
& ) STOP ' S/R EXCH_RX: Unrecognised simulationMode ' |
| 126 |
|
|
IF ( theCornerMode .NE. EXCH_IGNORE_CORNERS |
| 127 |
|
|
& .AND. theCornerMode .NE. EXCH_UPDATE_CORNERS |
| 128 |
|
|
& ) STOP ' S/R EXCH_RX: Unrecognised cornerMode ' |
| 129 |
|
|
|
| 130 |
|
|
C-- Cycle edge buffer level |
| 131 |
|
|
CALL EXCH_CYCLE_EBL( myThid ) |
| 132 |
|
|
|
| 133 |
jmc |
1.6 |
IF ( theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
| 134 |
|
|
|
| 135 |
|
|
IF ( Nx .EQ. 1 ) THEN |
| 136 |
|
|
C Special case for zonal average model i.e. case where Nx == 1 |
| 137 |
|
|
C In this case a reverse mode exchange simply add values from all i <> 1 |
| 138 |
|
|
C to i=1 element and reset to zero. |
| 139 |
|
|
DO bj=myByLo(myThid),myByHi(myThid) |
| 140 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 141 |
|
|
DO k = 1,myNz |
| 142 |
|
|
DO j = 1-myOLs,sNy+myOLn |
| 143 |
|
|
DO i = 1-myOLw,0 |
| 144 |
|
|
array(1,j,k,bi,bj) = array(1,j,k,bi,bj) |
| 145 |
|
|
& + array(i,j,k,bi,bj) |
| 146 |
|
|
array(i,j,k,bi,bj) = 0. |
| 147 |
|
|
ENDDO |
| 148 |
|
|
DO i = sNx+1,sNx+myOLe |
| 149 |
|
|
array(1,j,k,bi,bj) = array(1,j,k,bi,bj) |
| 150 |
|
|
& + array(i,j,k,bi,bj) |
| 151 |
|
|
array(i,j,k,bi,bj) = 0. |
| 152 |
|
|
ENDDO |
| 153 |
|
|
ENDDO |
| 154 |
|
|
ENDDO |
| 155 |
|
|
ENDDO |
| 156 |
|
|
ENDDO |
| 157 |
|
|
ENDIF |
| 158 |
|
|
|
| 159 |
|
|
IF ( Ny .EQ. 1 ) THEN |
| 160 |
|
|
C Special case for X-slice domain i.e. case where Ny == 1 |
| 161 |
|
|
C In this case a reverse mode exchange simply add values from all j <> 1 |
| 162 |
|
|
C to j=1 element and reset to zero. |
| 163 |
|
|
DO bj=myByLo(myThid),myByHi(myThid) |
| 164 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 165 |
|
|
DO k = 1,myNz |
| 166 |
|
|
DO j = 1-myOLs,0 |
| 167 |
|
|
DO i = 1-myOLw,sNx+myOLe |
| 168 |
|
|
array(i,1,k,bi,bj) = array(i,1,k,bi,bj) |
| 169 |
|
|
& + array(i,j,k,bi,bj) |
| 170 |
|
|
array(i,j,k,bi,bj) = 0. |
| 171 |
|
|
ENDDO |
| 172 |
|
|
ENDDO |
| 173 |
|
|
DO j = sNy+1,sNy+myOLn |
| 174 |
|
|
DO i = 1-myOLw,sNx+myOLe |
| 175 |
|
|
array(i,1,k,bi,bj) = array(i,1,k,bi,bj) |
| 176 |
|
|
& + array(i,j,k,bi,bj) |
| 177 |
|
|
array(i,j,k,bi,bj) = 0. |
| 178 |
|
|
ENDDO |
| 179 |
|
|
ENDDO |
| 180 |
|
|
ENDDO |
| 181 |
|
|
ENDDO |
| 182 |
|
|
ENDDO |
| 183 |
|
|
ENDIF |
| 184 |
|
|
|
| 185 |
|
|
C-- end of special cases of forward exch |
| 186 |
|
|
ENDIF |
| 187 |
|
|
|
| 188 |
adcroft |
1.2 |
IF ( theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
| 189 |
|
|
C-- "Put" east and west edges. |
| 190 |
|
|
CALL EXCH_RX_SEND_PUT_X( array, |
| 191 |
|
|
I myOLw, myOLe, myOLs, myOLn, myNz, |
| 192 |
|
|
I exchWidthX, exchWidthY, |
| 193 |
|
|
I theSimulationMode, theCornerMode, myThid ) |
| 194 |
jmc |
1.6 |
C-- If corners are important then sync and update east and west edges |
| 195 |
adcroft |
1.2 |
C-- before doing north and south exchanges. |
| 196 |
|
|
IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) THEN |
| 197 |
|
|
CALL EXCH_RX_RECV_GET_X( array, |
| 198 |
|
|
I myOLw, myOLe, myOLs, myOLn, myNz, |
| 199 |
|
|
I exchWidthX, exchWidthY, |
| 200 |
|
|
I theSimulationMode, theCornerMode, myThid ) |
| 201 |
|
|
ENDIF |
| 202 |
|
|
C "Put" north and south edges. |
| 203 |
|
|
CALL EXCH_RX_SEND_PUT_Y( array, |
| 204 |
|
|
I myOLw, myOLe, myOLs, myOLn, myNz, |
| 205 |
|
|
I exchWidthX, exchWidthY, |
| 206 |
|
|
I theSimulationMode, theCornerMode, myThid ) |
| 207 |
|
|
C-- Sync and update north, south (and east, west if corner updating |
| 208 |
|
|
C-- not active). |
| 209 |
|
|
IF ( theCornerMode .NE. EXCH_UPDATE_CORNERS ) THEN |
| 210 |
|
|
CALL EXCH_RX_RECV_GET_X( array, |
| 211 |
|
|
I myOLw, myOLe, myOLs, myOLn, myNz, |
| 212 |
|
|
I exchWidthX, exchWidthY, |
| 213 |
|
|
I theSimulationMode, theCornerMode, myThid ) |
| 214 |
|
|
ENDIF |
| 215 |
|
|
CALL EXCH_RX_RECV_GET_Y( array, |
| 216 |
|
|
I myOLw, myOLe, myOLs, myOLn, myNz, |
| 217 |
|
|
I exchWidthX, exchWidthY, |
| 218 |
|
|
I theSimulationMode, theCornerMode, myThid ) |
| 219 |
|
|
ENDIF |
| 220 |
|
|
|
| 221 |
|
|
IF ( theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
| 222 |
|
|
C "Put" north and south edges. |
| 223 |
|
|
CALL EXCH_RX_SEND_PUT_Y( array, |
| 224 |
|
|
I myOLw, myOLe, myOLs, myOLn, myNz, |
| 225 |
|
|
I exchWidthX, exchWidthY, |
| 226 |
|
|
I theSimulationMode, theCornerMode, myThid ) |
| 227 |
|
|
C-- If corners are important then sync and update east and west edges |
| 228 |
|
|
C-- before doing north and south exchanges. |
| 229 |
|
|
IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) THEN |
| 230 |
|
|
CALL EXCH_RX_RECV_GET_Y( array, |
| 231 |
|
|
I myOLw, myOLe, myOLs, myOLn, myNz, |
| 232 |
|
|
I exchWidthX, exchWidthY, |
| 233 |
|
|
I theSimulationMode, theCornerMode, myThid ) |
| 234 |
|
|
ENDIF |
| 235 |
|
|
C-- "Put" east and west edges. |
| 236 |
|
|
CALL EXCH_RX_SEND_PUT_X( array, |
| 237 |
|
|
I myOLw, myOLe, myOLs, myOLn, myNz, |
| 238 |
|
|
I exchWidthX, exchWidthY, |
| 239 |
|
|
I theSimulationMode, theCornerMode, myThid ) |
| 240 |
|
|
C-- Sync and update east, west (and north, south if corner updating |
| 241 |
|
|
C-- not active). |
| 242 |
|
|
IF ( theCornerMode .NE. EXCH_UPDATE_CORNERS ) THEN |
| 243 |
|
|
CALL EXCH_RX_RECV_GET_Y( array, |
| 244 |
|
|
I myOLw, myOLe, myOLs, myOLn, myNz, |
| 245 |
|
|
I exchWidthX, exchWidthY, |
| 246 |
|
|
I theSimulationMode, theCornerMode, myThid ) |
| 247 |
|
|
ENDIF |
| 248 |
|
|
CALL EXCH_RX_RECV_GET_X( array, |
| 249 |
|
|
I myOLw, myOLe, myOLs, myOLn, myNz, |
| 250 |
|
|
I exchWidthX, exchWidthY, |
| 251 |
|
|
I theSimulationMode, theCornerMode, myThid ) |
| 252 |
|
|
ENDIF |
| 253 |
jmc |
1.6 |
|
| 254 |
|
|
IF ( theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
| 255 |
|
|
|
| 256 |
|
|
IF ( Nx .EQ. 1 ) THEN |
| 257 |
jmc |
1.4 |
C Special case for zonal average model i.e. case where Nx == 1 |
| 258 |
adcroft |
1.2 |
C In this case a forward mode exchange simply sets array to |
| 259 |
|
|
C the i=1 value for all i. |
| 260 |
jmc |
1.6 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 261 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 262 |
|
|
DO k = 1,myNz |
| 263 |
|
|
DO j = 1-myOLs,sNy+myOLn |
| 264 |
|
|
DO i = 1-myOLw,sNx+myOLe |
| 265 |
|
|
array(i,j,k,bi,bj) = array(1,j,k,bi,bj) |
| 266 |
|
|
ENDDO |
| 267 |
jmc |
1.4 |
ENDDO |
| 268 |
|
|
ENDDO |
| 269 |
|
|
ENDDO |
| 270 |
|
|
ENDDO |
| 271 |
jmc |
1.6 |
ENDIF |
| 272 |
|
|
|
| 273 |
|
|
IF ( Ny .EQ. 1 ) THEN |
| 274 |
jmc |
1.4 |
C Special case for X-slice domain i.e. case where Ny == 1 |
| 275 |
|
|
C In this case a forward mode exchange simply sets array to |
| 276 |
|
|
C the j=1 value for all j. |
| 277 |
jmc |
1.6 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 278 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 279 |
|
|
DO k = 1,myNz |
| 280 |
|
|
DO j = 1-myOLs,sNy+myOLn |
| 281 |
|
|
DO i = 1-myOLw,sNx+myOLe |
| 282 |
|
|
array(i,j,k,bi,bj) = array(i,1,k,bi,bj) |
| 283 |
|
|
ENDDO |
| 284 |
adcroft |
1.2 |
ENDDO |
| 285 |
|
|
ENDDO |
| 286 |
|
|
ENDDO |
| 287 |
|
|
ENDDO |
| 288 |
jmc |
1.6 |
ENDIF |
| 289 |
|
|
|
| 290 |
|
|
C-- end of special cases of forward exch |
| 291 |
adcroft |
1.2 |
ENDIF |
| 292 |
|
|
|
| 293 |
|
|
RETURN |
| 294 |
|
|
END |
Parent Directory
| 
Revision Log
| 
Revision Graph