| 1 |
|
C $Header$ |
| 2 |
|
C $Name$ |
| 3 |
|
|
| 4 |
|
#include "CPP_EEOPTIONS.h" |
| 5 |
|
|
| 6 |
|
SUBROUTINE EXCH_UV_XY_RX( |
| 7 |
|
U Uphi, Vphi, withSigns, |
| 8 |
|
I myThid ) |
| 9 |
|
C /==========================================================\ |
| 10 |
|
C | SUBROUTINE EXCH_UV_XY_RX | |
| 11 |
|
C | o Handle exchanges for _RX, two-dimensional arrays. | |
| 12 |
|
C |==========================================================| |
| 13 |
|
C | Do true shared-memory data transfers and "messaging" | |
| 14 |
|
C | tranfers for blocking case of data transfers. | |
| 15 |
|
C | Applications call this routine using | |
| 16 |
|
C | CALL EXCH..( x, myThid ) | |
| 17 |
|
C | where x is a two-dimensional array with overlaps. | |
| 18 |
|
C | This routine does true-shared-memory copies for blocks | |
| 19 |
|
C | within a thread. It will also do MPI meesaging between | |
| 20 |
|
C | different processes. | |
| 21 |
|
C | Note: | |
| 22 |
|
C | ===== | |
| 23 |
|
C | This routine is a default mode interface to the more | |
| 24 |
|
C | general exchange routine. Under default mode the | |
| 25 |
|
C | exchange is for an edge width of OLx, and OLy and | |
| 26 |
|
C | updates corner points as well as edges ( slightly more | |
| 27 |
|
C | synchronisation required). | |
| 28 |
|
C \==========================================================/ |
| 29 |
|
IMPLICIT NONE |
| 30 |
|
|
| 31 |
|
C === Global data === |
| 32 |
|
#include "SIZE.h" |
| 33 |
|
#include "EEPARAMS.h" |
| 34 |
|
#include "EESUPPORT.h" |
| 35 |
|
|
| 36 |
|
C === Routine arguments === |
| 37 |
|
C phi - Array with overlap regions are to be exchanged |
| 38 |
|
C Note - The interface to EXCH_RL assumes that |
| 39 |
|
C the standard Fortran 77 sequence association rules |
| 40 |
|
C apply. |
| 41 |
|
C myThid - My thread id. |
| 42 |
|
_RX Uphi(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 43 |
|
_RX Vphi(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 44 |
|
LOGICAL withSigns |
| 45 |
|
INTEGER myThid |
| 46 |
|
CEndOfInterface |
| 47 |
|
|
| 48 |
|
C == Local variables == |
| 49 |
|
C OL[wens] - Overlap extents in west, east, north, south. |
| 50 |
|
C exchWidth[XY] - Extent of regions that will be exchanged. |
| 51 |
|
INTEGER OLw, OLe, OLn, OLs, exchWidthX, exchWidthY, myNz |
| 52 |
|
|
| 53 |
|
OLw = OLx |
| 54 |
|
OLe = OLx |
| 55 |
|
OLn = OLy |
| 56 |
|
OLs = OLy |
| 57 |
|
exchWidthX = OLx |
| 58 |
|
exchWidthY = OLy |
| 59 |
|
myNz = 1 |
| 60 |
|
C ** NOTE ** The exchange routine we use here does not |
| 61 |
|
C require the preceeding and following barriers. |
| 62 |
|
C However, the slow, simple exchange interface |
| 63 |
|
C that is calling it here is meant to ensure |
| 64 |
|
C that threads are synchronised before exchanges |
| 65 |
|
C begine. |
| 66 |
|
IF (useCubedSphereExchange) THEN |
| 67 |
|
CALL EXCH_UV_RX_CUBE( Uphi, Vphi, withSigns, |
| 68 |
|
I OLw, OLe, OLs, OLn, myNz, |
| 69 |
|
I exchWidthX, exchWidthY, |
| 70 |
|
I FORWARD_SIMULATION, EXCH_UPDATE_CORNERS, myThid ) |
| 71 |
|
ELSE |
| 72 |
|
c CALL EXCH_RX( Uphi, |
| 73 |
|
c I OLw, OLe, OLs, OLn, myNz, |
| 74 |
|
c I exchWidthX, exchWidthY, |
| 75 |
|
c I FORWARD_SIMULATION, EXCH_UPDATE_CORNERS, myThid ) |
| 76 |
|
c CALL EXCH_RX( Vphi, |
| 77 |
|
c I OLw, OLe, OLs, OLn, myNz, |
| 78 |
|
c I exchWidthX, exchWidthY, |
| 79 |
|
c I FORWARD_SIMULATION, EXCH_UPDATE_CORNERS, myThid ) |
| 80 |
|
c_jmc: for JAM compatibility, replace the 2 CALLs above by the 2 CPP_MACROs: |
| 81 |
|
_EXCH_XY_RX( Uphi, myThid ) |
| 82 |
|
_EXCH_XY_RX( Vphi, myThid ) |
| 83 |
|
ENDIF |
| 84 |
|
|
| 85 |
|
RETURN |
| 86 |
|
END |
Parent Directory
| 
Revision Log
| 
Revision Graph
| 
Patch