1 |
C $Header: /u/gcmpack/MITgcm/pkg/exch2/w2_eeboot.F,v 1.13 2010/04/16 18:14:24 jmc 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 |
|
12 |
C !DESCRIPTION: |
13 |
C *==========================================================* |
14 |
C | SUBROUTINE W2_EEBOOT |
15 |
C | o Setup execution "environment" for WRAPPER2 |
16 |
C *==========================================================* |
17 |
C | WRAPPER2 provides complex topology support. In this routine |
18 |
C | we setup the base topology for the default halo operations. |
19 |
C *==========================================================* |
20 |
|
21 |
C !USES: |
22 |
IMPLICIT NONE |
23 |
|
24 |
#include "SIZE.h" |
25 |
#include "EEPARAMS.h" |
26 |
#include "W2_EXCH2_SIZE.h" |
27 |
#include "W2_EXCH2_TOPOLOGY.h" |
28 |
#include "W2_EXCH2_PARAMS.h" |
29 |
#include "W2_EXCH2_BUFFER.h" |
30 |
CEOP |
31 |
|
32 |
C !FUNCTIONS: |
33 |
INTEGER ILNBLNK |
34 |
EXTERNAL ILNBLNK |
35 |
|
36 |
C == Local variables == |
37 |
INTEGER thisProc |
38 |
CHARACTER*(MAX_LEN_MBUF) msgBuf |
39 |
CHARACTER*(MAX_LEN_FNAM) fName |
40 |
c INTEGER W2_oUnit |
41 |
INTEGER stdUnit, iLen |
42 |
CHARACTER commFlag |
43 |
INTEGER myTileId |
44 |
INTEGER myThid, I, J |
45 |
INTEGER np, ii, jj, bi, bj |
46 |
INTEGER iErr, tNx, tNy |
47 |
|
48 |
C Set dummy myThid value (we are not multi-threaded here) |
49 |
myThid = 1 |
50 |
|
51 |
C Initialise to zero EXCH2_TOPOLOGY common blocks |
52 |
exch2_nTiles = 0 |
53 |
DO I = 1,W2_maxNbTiles |
54 |
exch2_tNx(I) = 0 |
55 |
exch2_tNy(I) = 0 |
56 |
exch2_tBasex(I) = 0 |
57 |
exch2_tBasey(I) = 0 |
58 |
exch2_txGlobalo(I) = 0 |
59 |
exch2_tyGlobalo(I) = 0 |
60 |
exch2_isWedge(I) = 0 |
61 |
exch2_isNedge(I) = 0 |
62 |
exch2_isEedge(I) = 0 |
63 |
exch2_isSedge(I) = 0 |
64 |
exch2_tProc(I) = 0 |
65 |
exch2_myFace(I) = 0 |
66 |
exch2_mydNx(I) = 0 |
67 |
exch2_mydNy(I) = 0 |
68 |
exch2_nNeighbours(I) = 0 |
69 |
DO J = 1,W2_maxNeighbours |
70 |
exch2_neighbourId(J,I) = 0 |
71 |
exch2_opposingSend(J,I) = 0 |
72 |
DO ii = 1,4 |
73 |
exch2_pij(ii,J,I) = 0 |
74 |
ENDDO |
75 |
exch2_oi(J,I) = 0 |
76 |
exch2_oj(J,I) = 0 |
77 |
exch2_iLo(J,I) = 0 |
78 |
exch2_iHi(J,I) = 0 |
79 |
exch2_jLo(J,I) = 0 |
80 |
exch2_jHi(J,I) = 0 |
81 |
ENDDO |
82 |
ENDDO |
83 |
W2_oUnit = standardMessageUnit |
84 |
|
85 |
C Set W2-EXCH2 parameters |
86 |
CALL W2_READPARMS( myThid ) |
87 |
|
88 |
stdUnit = standardMessageUnit |
89 |
WRITE(msgBuf,'(A)') '===== Start setting W2 TOPOLOGY:' |
90 |
CALL PRINT_MESSAGE( msgBuf, stdUnit, SQUEEZE_RIGHT, myThid ) |
91 |
|
92 |
C Open message output-file (if needed) |
93 |
IF ( W2_printMsg .LT. 0 ) THEN |
94 |
WRITE(fName,'(A,I4.4,A)') |
95 |
& 'w2_tile_topology.',myProcId,'.log' |
96 |
iLen = ILNBLNK(fName) |
97 |
CALL MDSFINDUNIT( W2_oUnit, myThid ) |
98 |
OPEN( W2_oUnit, file=fName(1:iLen), |
99 |
& status='unknown', form='formatted') |
100 |
WRITE(msgBuf,'(2A)') ' write to log-file: ', fName(1:iLen) |
101 |
CALL PRINT_MESSAGE( msgBuf, stdUnit, SQUEEZE_RIGHT, myThid ) |
102 |
ENDIF |
103 |
|
104 |
C Define topology for every tile |
105 |
CALL W2_E2SETUP( myThid ) |
106 |
|
107 |
C Decide which tiles this process handles - do this inline for now, but |
108 |
C should go in subroutine. |
109 |
C Set which rank processes "own" which tiles. This should probably |
110 |
C be queried as part of some hand-shaking but for now we use the |
111 |
C functional relationship that was used above. |
112 |
C Fill also W2_procTileList for Single-CPU-IO. |
113 |
|
114 |
C Number of tiles I handle is nSx*nSy |
115 |
thisProc = 1 + myProcId |
116 |
J = 0 |
117 |
DO I=1,exch2_nTiles |
118 |
IF ( exch2_myFace(I) .NE. 0 ) THEN |
119 |
C-- old ordering (makes no difference if nSy*nPy=1 ) |
120 |
c np = 1 + J/(nSx*nSy) |
121 |
c jj = MOD(J,nSx*nSy) |
122 |
c bj = 1 + jj/nSx |
123 |
c bi = 1 + MOD(jj,nSx) |
124 |
C-- new ordering: for single sub-domain (nFacets=1) case, match default setting |
125 |
jj = J/(nSx*nPx) |
126 |
ii = MOD(J,nSx*nPx) |
127 |
C-- natural way to order processors: |
128 |
c np = 1 + ii/nSx + (jj/nSy)*nPx |
129 |
C-- switch processor order to match MPI_CART set-up |
130 |
np = 1 + jj/nSy + (ii/nSx)*nPy |
131 |
bj = 1 + MOD(jj,nSy) |
132 |
bi = 1 + MOD(ii,nSx) |
133 |
C-- |
134 |
exch2_tProc(I) = np |
135 |
W2_procTileList(bi,bj,np) = I |
136 |
IF ( np.EQ.thisProc ) W2_myTileList(bi,bj) = I |
137 |
J = J + 1 |
138 |
ENDIF |
139 |
ENDDO |
140 |
IF ( J .NE. nSx*nSy*nPx*nPy ) THEN |
141 |
STOP |
142 |
& 'ERROR W2_EEBOOT: number of active tiles is not nPx*nSx*nPy*nSy' |
143 |
ENDIF |
144 |
|
145 |
C-- Check tile sizes |
146 |
iErr = 0 |
147 |
DO bj=1,nSy |
148 |
DO bi=1,nSx |
149 |
myTileId = W2_myTileList(bi,bj) |
150 |
tNx = exch2_tNx(myTileId) |
151 |
tNy = exch2_tNy(myTileId) |
152 |
IF ( tNx .NE. sNx ) THEN |
153 |
WRITE(msgBuf,'(3(A,I5))') |
154 |
& 'ERROR: S/R W2_EEBOOT Topology for tile', myTileId, |
155 |
& 'tNx=', tNx, ' is not equal to subgrid size sNx=', sNx |
156 |
CALL PRINT_MESSAGE(msgBuf, |
157 |
& errorMessageUnit, SQUEEZE_RIGHT, 1 ) |
158 |
iErr = iErr+1 |
159 |
ENDIF |
160 |
IF ( tNy .NE. sNy ) THEN |
161 |
WRITE(msgBuf,'(3(A,I5))') |
162 |
& 'ERROR: S/R W2_EEBOOT Topology for tile', myTileId, |
163 |
& 'tNy=', tNy, ' is not equal to subgrid size sNy=', sNy |
164 |
CALL PRINT_MESSAGE(msgBuf, |
165 |
& errorMessageUnit, SQUEEZE_RIGHT, 1 ) |
166 |
iErr = iErr+1 |
167 |
ENDIF |
168 |
ENDDO |
169 |
ENDDO |
170 |
IF ( iErr .NE. 0 ) THEN |
171 |
STOP 'ABNORMAL END: W2_EEBOOT' |
172 |
ENDIF |
173 |
|
174 |
C-- Print tiles connection for this process and set myCommonFlag : |
175 |
WRITE(msgBuf,'(A)') '===== W2 TILE TOPOLOGY =====' |
176 |
CALL PRINT_MESSAGE( msgBuf, W2_oUnit, SQUEEZE_BOTH, myThid ) |
177 |
DO bj=1,nSy |
178 |
DO bi=1,nSx |
179 |
myTileId = W2_myTileList(bi,bj) |
180 |
c WRITE(msgBuf,'(A,I4)') ' TILE: ', myTileId |
181 |
WRITE(msgBuf,'(A,I5,A,I3)') ' TILE: ', myTileId, |
182 |
& ' , Nb of Neighbours =', exch2_nNeighbours(myTileId) |
183 |
CALL PRINT_MESSAGE( msgBuf, W2_oUnit, SQUEEZE_RIGHT, myThid ) |
184 |
DO J=1,exch2_nNeighbours(myTileId) |
185 |
commFlag = 'M' |
186 |
DO jj=1,nSy |
187 |
DO ii=1,nSx |
188 |
IF ( W2_myTileList(ii,jj).EQ.exch2_neighbourId(J,myTileId) ) |
189 |
& commFlag = 'P' |
190 |
ENDDO |
191 |
ENDDO |
192 |
IF ( commFlag .EQ. 'M' ) THEN |
193 |
WRITE(msgBuf,'(A,I3,A,I5,A,I3,2A,I5,A)') |
194 |
& ' NEIGHBOUR',J,' = TILE', exch2_neighbourId(J,myTileId), |
195 |
& ' (n=', exch2_opposingSend(J,myTileId), ') Comm = MSG', |
196 |
& ' (PROC=',exch2_tProc(exch2_neighbourId(J,myTileId)),')' |
197 |
CALL PRINT_MESSAGE( msgBuf, W2_oUnit, SQUEEZE_RIGHT, myThid ) |
198 |
ENDIF |
199 |
IF ( commFlag .EQ. 'P' ) THEN |
200 |
WRITE(msgBuf,'(A,I3,A,I5,A,I3,2A,I5,A)') |
201 |
& ' NEIGHBOUR',J,' = TILE', exch2_neighbourId(J,myTileId), |
202 |
& ' (n=', exch2_opposingSend(J,myTileId), ') Comm = PUT', |
203 |
& ' (PROC=',exch2_tProc(exch2_neighbourId(J,myTileId)),')' |
204 |
CALL PRINT_MESSAGE( msgBuf, W2_oUnit, SQUEEZE_RIGHT, myThid ) |
205 |
ENDIF |
206 |
W2_myCommFlag(J,bi,bj) = commFlag |
207 |
ENDDO |
208 |
ENDDO |
209 |
ENDDO |
210 |
|
211 |
C Set filling value for face-corner halo regions |
212 |
e2FillValue_RL = 0. _d 0 |
213 |
e2FillValue_RS = 0. _d 0 |
214 |
e2FillValue_R4 = 0.e0 |
215 |
e2FillValue_R8 = 0.d0 |
216 |
C- for testing only: put a large value (should not affects the results) |
217 |
c e2FillValue_RL = 1. _d+20 |
218 |
c e2FillValue_RS = 1. _d+20 |
219 |
c e2FillValue_R4 = 1.e+20 |
220 |
c e2FillValue_R8 = 1.d+20 |
221 |
|
222 |
C Print out the topology communication schedule |
223 |
IF ( W2_printMsg .NE. 0 ) THEN |
224 |
CALL W2_PRINT_COMM_SEQUENCE( myThid ) |
225 |
ENDIF |
226 |
|
227 |
C Close message output-file (if needed) |
228 |
IF ( W2_oUnit.NE.standardMessageUnit ) THEN |
229 |
WRITE(msgBuf,'(A)') '=== End TOPOLOGY report ===' |
230 |
CALL PRINT_MESSAGE( msgBuf, W2_oUnit, SQUEEZE_BOTH, myThid ) |
231 |
CLOSE( W2_oUnit ) |
232 |
ENDIF |
233 |
WRITE(msgBuf,'(A)') '===== setting W2 TOPOLOGY: Done' |
234 |
CALL PRINT_MESSAGE( msgBuf, stdUnit, SQUEEZE_RIGHT, myThid ) |
235 |
WRITE(msgBuf,'(A)') ' ' |
236 |
CALL PRINT_MESSAGE( msgBuf, stdUnit, SQUEEZE_RIGHT, myThid ) |
237 |
|
238 |
RETURN |
239 |
END |