1 |
jmc |
1.6 |
C $Header: /u/gcmpack/MITgcm/pkg/exch2/exch2_recv_rx2.template,v 1.5 2008/07/29 20:25:23 jmc Exp $ |
2 |
edhill |
1.2 |
C $Name: $ |
3 |
|
|
|
4 |
jmc |
1.4 |
#include "CPP_EEOPTIONS.h" |
5 |
|
|
#include "W2_OPTIONS.h" |
6 |
afe |
1.1 |
|
7 |
|
|
SUBROUTINE EXCH2_RECV_RX2( |
8 |
jmc |
1.6 |
I tIlo1, tIhi1, tIlo2, tIhi2, tiStride, |
9 |
|
|
I tJlo1, tJhi1, tJlo2, tJhi2, tjStride, |
10 |
afe |
1.1 |
I tKlo, tKhi, tkStride, |
11 |
|
|
I thisTile, thisI, nN, |
12 |
|
|
I e2Bufr1_RX, e2Bufr2_RX, e2BufrRecSize, |
13 |
|
|
I mnb, nt, |
14 |
|
|
U array1, |
15 |
|
|
I i1Lo, i1Hi, j1Lo, j1Hi, k1Lo, k1Hi, |
16 |
|
|
U array2, |
17 |
|
|
I i2Lo, i2Hi, j2Lo, j2Hi, k2Lo, k2Hi, |
18 |
|
|
U e2_msgHandles, myTiles, |
19 |
|
|
I commSetting, |
20 |
|
|
I myThid ) |
21 |
|
|
|
22 |
|
|
IMPLICIT NONE |
23 |
|
|
|
24 |
jmc |
1.4 |
#include "SIZE.h" |
25 |
|
|
#include "EEPARAMS.h" |
26 |
|
|
#include "EESUPPORT.h" |
27 |
afe |
1.1 |
#include "W2_EXCH2_TOPOLOGY.h" |
28 |
|
|
|
29 |
|
|
C === Routine arguments === |
30 |
jmc |
1.6 |
C tIlo1,tIhi1,tIstride :: index range in I that will be filled in target "array1" |
31 |
|
|
C tIlo2,tIhi2,tIstride :: index range in I that will be filled in target "array2" |
32 |
|
|
C tJlo1,tJhi1,tJstride :: index range in J that will be filled in target "array1" |
33 |
|
|
C tJlo2,tJhi2,tJstride :: index range in J that will be filled in target "array2" |
34 |
|
|
C tKlo, tKhi, tKstride :: index range in K that will be filled in target arrays |
35 |
afe |
1.1 |
C thisTile :: Rank of the receiveing tile |
36 |
|
|
C thisI :: Index of the receiving tile within this process (used |
37 |
|
|
C :: to select buffer slots that are allowed). |
38 |
|
|
C nN :: Neighbour entry that we are processing |
39 |
|
|
C e2Bufr1_RX :: Data transport buffer array. This array is used in one of |
40 |
|
|
C :: two ways. For PUT communication the entry in the buffer |
41 |
|
|
C :: associated with the source for this receive (determined |
42 |
|
|
C :: from the opposing_send index) is read. For MSG communication |
43 |
|
|
C :: the entry in the buffer associated with this neighbor of this |
44 |
|
|
C :: tile is used as a receive location for loading a linear |
45 |
|
|
C :: stream of bytes. |
46 |
|
|
C e2BufrRecSize :: Number of elements in each entry of e2Bufr1_RX |
47 |
|
|
C mnb :: Second dimension of e2Bufr1_RX |
48 |
|
|
C nt :: Third dimension of e2Bufr1_RX |
49 |
|
|
C array :: Target array that this receive writes to. |
50 |
|
|
C i1Lo, i1Hi :: I coordinate bounds of target array |
51 |
|
|
C j1Lo, j1Hi :: J coordinate bounds of target array |
52 |
|
|
C k1Lo, k1Hi :: K coordinate bounds of target array |
53 |
|
|
C e2_msgHandles :: Synchronization and coordination data structure used to coordinate access |
54 |
|
|
C :: to e2Bufr1_RX or to regulate message buffering. In PUT communication |
55 |
|
|
C :: sender will increment handle entry once data is ready in buffer. |
56 |
|
|
C :: Receiver will decrement handle once data is consumed from buffer. For |
57 |
|
|
C :: MPI MSG communication MPI_Wait uses hanlde to check Isend has cleared. |
58 |
|
|
C :: This is done in routine after receives. |
59 |
|
|
C myTiles :: List of nt tiles that this process owns. |
60 |
|
|
C commSetting :: Mode of communication used to exchnage with this neighbor |
61 |
jmc |
1.6 |
C myThid :: Thread number of this instance of EXCH2_RECV_RX2 |
62 |
|
|
|
63 |
|
|
INTEGER tIlo1, tIhi1, tIlo2, tIhi2, tiStride |
64 |
|
|
INTEGER tJlo1, tJhi1, tJlo2, tJhi2, tjStride |
65 |
|
|
INTEGER tKlo, tKhi, tkStride |
66 |
afe |
1.1 |
INTEGER i1Lo, i1Hi, j1Lo, j1Hi, k1Lo, k1Hi |
67 |
|
|
INTEGER i2Lo, i2Hi, j2Lo, j2Hi, k2Lo, k2Hi |
68 |
|
|
INTEGER thisTile, nN, thisI |
69 |
jmc |
1.5 |
INTEGER e2BufrRecSize |
70 |
afe |
1.1 |
INTEGER mnb, nt |
71 |
|
|
_RX e2Bufr1_RX( e2BufrRecSize, mnb, nt, 2 ) |
72 |
|
|
_RX e2Bufr2_RX( e2BufrRecSize, mnb, nt, 2 ) |
73 |
|
|
_RX array1(i1Lo:i1Hi,j1Lo:j1Hi,k1Lo:k1Hi) |
74 |
|
|
_RX array2(i2Lo:i2Hi,j2Lo:j2Hi,k2Lo:k2Hi) |
75 |
|
|
INTEGER e2_msgHandles(2, mnb, nt) |
76 |
|
|
INTEGER myThid |
77 |
|
|
INTEGER myTiles(nt) |
78 |
|
|
CHARACTER commSetting |
79 |
|
|
|
80 |
|
|
C == Local variables == |
81 |
|
|
C itl, jtl, ktl :: Loop counters |
82 |
|
|
C :: itl etc... target local |
83 |
|
|
INTEGER itl, jtl, ktl |
84 |
|
|
C tt :: Target tile |
85 |
|
|
C iBufr1 :: Buffer counter |
86 |
|
|
C iBufr2 :: |
87 |
|
|
INTEGER tt |
88 |
|
|
INTEGER iBufr1, iBufr2 |
89 |
|
|
C mb, nb :: Selects e2Bufr, msgHandle record to use |
90 |
|
|
C ir :: |
91 |
|
|
INTEGER mb, nb, ir |
92 |
jmc |
1.5 |
C oN :: Opposing send record number |
93 |
afe |
1.1 |
INTEGER oN |
94 |
|
|
C Loop counters |
95 |
jmc |
1.3 |
INTEGER I |
96 |
afe |
1.1 |
|
97 |
|
|
C MPI setup |
98 |
jmc |
1.3 |
#ifdef ALLOW_USE_MPI |
99 |
jmc |
1.6 |
INTEGER nri1, nrj1, nrk1 |
100 |
|
|
INTEGER nri2, nrj2, nrk2 |
101 |
jmc |
1.3 |
INTEGER theTag1, theTag2, theType |
102 |
afe |
1.1 |
INTEGER sProc, tProc |
103 |
|
|
INTEGER mpiStatus(MPI_STATUS_SIZE), mpiRc |
104 |
jmc |
1.3 |
#ifdef W2_E2_DEBUG_ON |
105 |
|
|
CHARACTER*(MAX_LEN_MBUF) messageBuffer |
106 |
|
|
#endif |
107 |
afe |
1.1 |
#endif |
108 |
|
|
|
109 |
|
|
tt=exch2_neighbourId(nN, thisTile ) |
110 |
jmc |
1.5 |
oN=exch2_opposingSend(nN, thisTile ) |
111 |
afe |
1.1 |
|
112 |
jmc |
1.5 |
C Handle receive end data transport according to communication mechanism between |
113 |
afe |
1.1 |
C source and target tile |
114 |
|
|
IF ( commSetting .EQ. 'P' ) THEN |
115 |
|
|
C 1 Need to check and spin on data ready assertion for multithreaded mode, for now do nothing i.e. |
116 |
|
|
C assume only one thread per process. |
117 |
|
|
|
118 |
|
|
C 2 Need to set e2Bufr to use put buffer from opposing send. |
119 |
jmc |
1.5 |
oN = exch2_opposingSend(nN, thisTile ) |
120 |
afe |
1.1 |
mb = oN |
121 |
|
|
ir = 1 |
122 |
|
|
DO I=1,nt |
123 |
|
|
IF ( myTiles(I) .EQ. tt ) THEN |
124 |
|
|
nb = I |
125 |
|
|
ENDIF |
126 |
|
|
ENDDO |
127 |
|
|
C Get data from e2Bufr(1,mb,nb) |
128 |
|
|
ELSEIF ( commSetting .EQ. 'M' ) THEN |
129 |
|
|
#ifdef ALLOW_USE_MPI |
130 |
|
|
C Setup MPI stuff here |
131 |
|
|
nb = thisI |
132 |
|
|
mb = nN |
133 |
|
|
ir = 2 |
134 |
|
|
theTag1 = (tt-1)*MAX_NEIGHBOURS*2 + oN-1 |
135 |
|
|
& + 10000*( |
136 |
|
|
& (thisTile-1)*MAX_NEIGHBOURS*2 + oN-1 |
137 |
|
|
& ) |
138 |
|
|
theTag2 = (tt-1)*MAX_NEIGHBOURS*2 + MAX_NEIGHBOURS + oN-1 |
139 |
|
|
& + 10000*( |
140 |
|
|
& (thisTile-1)*MAX_NEIGHBOURS*2 + MAX_NEIGHBOURS + oN-1 |
141 |
|
|
& ) |
142 |
|
|
tProc = exch2_tProc(thisTile)-1 |
143 |
|
|
sProc = exch2_tProc(tt)-1 |
144 |
|
|
theType = MPI_REAL8 |
145 |
jmc |
1.6 |
nri1 = (tIhi1-tIlo1+1)/tiStride |
146 |
|
|
nrj1 = (tJhi1-tJlo1+1)/tjStride |
147 |
afe |
1.1 |
nrk1 = (tKhi-tKlo+1)/tkStride |
148 |
|
|
iBufr1 = nri1*nrj1*nrk1 |
149 |
jmc |
1.6 |
nri2 = (tIhi2-tIlo2+1)/tiStride |
150 |
|
|
nrj2 = (tJhi2-tJlo2+1)/tjStride |
151 |
afe |
1.1 |
nrk2 = (tKhi-tKlo+1)/tkStride |
152 |
|
|
iBufr2 = nri2*nrj2*nrk2 |
153 |
|
|
CALL MPI_Recv( e2Bufr1_RX(1,mb,nb,ir), iBufr1, theType, sProc, |
154 |
|
|
& theTag1, MPI_COMM_MODEL, mpiStatus, mpiRc ) |
155 |
|
|
CALL MPI_Recv( e2Bufr2_RX(1,mb,nb,ir), iBufr2, theType, sProc, |
156 |
|
|
& theTag2, MPI_COMM_MODEL, mpiStatus, mpiRc ) |
157 |
|
|
#ifdef W2_E2_DEBUG_ON |
158 |
|
|
WRITE(messageBuffer,'(A,I4,A,I4,A)') ' RECV FROM TILE=', tt, |
159 |
|
|
& ' (proc = ',sProc,')' |
160 |
|
|
CALL PRINT_MESSAGE(messageBuffer, |
161 |
|
|
I standardMessageUnit,SQUEEZE_RIGHT, |
162 |
|
|
I myThid) |
163 |
jmc |
1.6 |
WRITE(messageBuffer,'(A,I4,A,I4,A)') ' INTO TILE=',thisTile, |
164 |
afe |
1.1 |
& ' (proc = ',tProc,')' |
165 |
|
|
CALL PRINT_MESSAGE(messageBuffer, |
166 |
|
|
I standardMessageUnit,SQUEEZE_RIGHT, |
167 |
|
|
I myThid) |
168 |
|
|
WRITE(messageBuffer,'(A,I10)') ' TAG1=', theTag1 |
169 |
|
|
CALL PRINT_MESSAGE(messageBuffer, |
170 |
|
|
I standardMessageUnit,SQUEEZE_RIGHT, |
171 |
|
|
I myThid) |
172 |
|
|
WRITE(messageBuffer,'(A,I4)') ' NEL1=', iBufr1 |
173 |
|
|
CALL PRINT_MESSAGE(messageBuffer, |
174 |
|
|
I standardMessageUnit,SQUEEZE_RIGHT, |
175 |
|
|
I myThid) |
176 |
|
|
WRITE(messageBuffer,'(A,I10)') ' TAG2=', theTag2 |
177 |
|
|
CALL PRINT_MESSAGE(messageBuffer, |
178 |
|
|
I standardMessageUnit,SQUEEZE_RIGHT, |
179 |
|
|
I myThid) |
180 |
|
|
WRITE(messageBuffer,'(A,I4)') ' NEL2=', iBufr2 |
181 |
|
|
CALL PRINT_MESSAGE(messageBuffer, |
182 |
|
|
I standardMessageUnit,SQUEEZE_RIGHT, |
183 |
|
|
I myThid) |
184 |
|
|
#endif /* W2_E2_DEBUG_ON */ |
185 |
|
|
C Set mb to neighbour entry |
186 |
|
|
C Set nt to this tiles rank |
187 |
|
|
mb = nN |
188 |
|
|
#endif |
189 |
|
|
ELSE |
190 |
|
|
STOP 'EXCH2_RECV_RX2:: commSetting VALUE IS INVALID' |
191 |
|
|
ENDIF |
192 |
|
|
|
193 |
|
|
iBufr1=0 |
194 |
jmc |
1.6 |
DO ktl=tKlo,tKhi,tkStride |
195 |
|
|
DO jtl=tJLo1, tJHi1, tjStride |
196 |
|
|
DO itl=tILo1, tIHi1, tiStride |
197 |
afe |
1.1 |
C Read from e2Bufr1_RX(iBufr,mb,nb) |
198 |
|
|
iBufr1=iBufr1+1 |
199 |
|
|
array1(itl,jtl,ktl)=e2Bufr1_RX(iBufr1,mb,nb,ir) |
200 |
|
|
ENDDO |
201 |
|
|
ENDDO |
202 |
|
|
ENDDO |
203 |
|
|
|
204 |
|
|
iBufr2=0 |
205 |
jmc |
1.6 |
DO ktl=tKlo,tKhi,tkStride |
206 |
|
|
DO jtl=tJLo2, tJHi2, tjStride |
207 |
|
|
DO itl=tILo2, tIHi2, tiStride |
208 |
afe |
1.1 |
C Read from e2Bufr1_RX(iBufr,mb,nb) |
209 |
|
|
iBufr2=iBufr2+1 |
210 |
|
|
array2(itl,jtl,ktl)=e2Bufr2_RX(iBufr2,mb,nb,ir) |
211 |
|
|
ENDDO |
212 |
|
|
ENDDO |
213 |
|
|
ENDDO |
214 |
jmc |
1.5 |
|
215 |
afe |
1.1 |
RETURN |
216 |
|
|
END |
217 |
edhill |
1.2 |
|
218 |
|
|
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
219 |
|
|
|
220 |
|
|
CEH3 ;;; Local Variables: *** |
221 |
|
|
CEH3 ;;; mode:fortran *** |
222 |
|
|
CEH3 ;;; End: *** |