| 1 |
C $Header: /u/gcmpack/MITgcm/pkg/exch2/w2_set_map_tiles.F,v 1.2 2009/06/18 22:37:58 jmc Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
#include "CPP_EEOPTIONS.h" |
| 5 |
#include "W2_OPTIONS.h" |
| 6 |
|
| 7 |
C-- File w2_set_map_tiles.F: |
| 8 |
C-- Contents |
| 9 |
C-- o W2_SET_MAP_TILES :: Set tiles and IO mapping |
| 10 |
C-- o FIND_GCD_N :: Returns the Greatest Common Divisor |
| 11 |
|
| 12 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 13 |
CBOP 0 |
| 14 |
C !ROUTINE: W2_SET_MAP_TILES |
| 15 |
|
| 16 |
C !INTERFACE: |
| 17 |
SUBROUTINE W2_SET_MAP_TILES( myThid ) |
| 18 |
|
| 19 |
C !DESCRIPTION: |
| 20 |
C Set-up tiles mapping and IO global mapping |
| 21 |
|
| 22 |
C !USES: |
| 23 |
IMPLICIT NONE |
| 24 |
|
| 25 |
C Tile topology settings data structures |
| 26 |
#include "SIZE.h" |
| 27 |
#include "EEPARAMS.h" |
| 28 |
#include "W2_EXCH2_SIZE.h" |
| 29 |
#include "W2_EXCH2_PARAMS.h" |
| 30 |
#include "W2_EXCH2_TOPOLOGY.h" |
| 31 |
|
| 32 |
C !INPUT PARAMETERS: |
| 33 |
C myThid :: my Thread Id number |
| 34 |
C (Note: not relevant since threading has not yet started) |
| 35 |
INTEGER myThid |
| 36 |
|
| 37 |
C !FUNCTIONS: |
| 38 |
INTEGER FIND_GCD_N |
| 39 |
EXTERNAL FIND_GCD_N |
| 40 |
|
| 41 |
C !LOCAL VARIABLES: |
| 42 |
C === Local variables === |
| 43 |
C msgBuf :: Informational/error message buffer |
| 44 |
CHARACTER*(MAX_LEN_MBUF) msgBuf |
| 45 |
INTEGER tNx, tNy, fNx, fNy, nbPts, fBaseX |
| 46 |
INTEGER nbTx, nbTy |
| 47 |
INTEGER j, ii, k, tId, tx, ty |
| 48 |
INTEGER divide, nnx(W2_maxNbFacets) |
| 49 |
INTEGER errCnt, tCnt |
| 50 |
LOGICAL tileIsActive, prtFlag |
| 51 |
CEOP |
| 52 |
|
| 53 |
C Set-up tiles mapping and IO global mapping |
| 54 |
WRITE(msgBuf,'(2A)') 'W2_SET_MAP_TILES:', |
| 55 |
& ' tile mapping within facet and global Map:' |
| 56 |
CALL PRINT_MESSAGE( msgBuf, W2_oUnit, SQUEEZE_RIGHT, myThid ) |
| 57 |
prtFlag = ABS(W2_printMsg).GE.2 |
| 58 |
& .OR. ( W2_printMsg .NE.0 .AND. myProcId.EQ.0 ) |
| 59 |
|
| 60 |
tNx = sNx |
| 61 |
tNy = sNy |
| 62 |
C-- Check that tile dims divide facet dims |
| 63 |
errCnt = 0 |
| 64 |
tCnt = 0 |
| 65 |
nbPts = 0 |
| 66 |
DO j=1,nFacets |
| 67 |
fNx = facet_dims(2*j-1) |
| 68 |
fNy = facet_dims( 2*j ) |
| 69 |
nbTx = fNx/tNx |
| 70 |
nbTy = fNy/tNy |
| 71 |
IF ( nbTx*tNx .NE. fNx ) THEN |
| 72 |
WRITE(msgBuf,'(A,I3,2(A,I7))') 'Facet',j, |
| 73 |
& ' : X-size=', fNx, ' not multiple of sNx=', tNx |
| 74 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 75 |
errCnt = errCnt + 1 |
| 76 |
ENDIF |
| 77 |
IF ( nbTy*tNy .NE. fNy ) THEN |
| 78 |
WRITE(msgBuf,'(A,I3,2(A,I7))') 'Facet',j, |
| 79 |
& ' : Y-size=', fNy, ' not multiple of sNy=', tNy |
| 80 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 81 |
errCnt = errCnt + 1 |
| 82 |
ENDIF |
| 83 |
facet_owns(1,j) = tCnt+1 |
| 84 |
tCnt = tCnt + nbTx*nbTy |
| 85 |
facet_owns(2,j) = tCnt |
| 86 |
nbPts = nbPts + fNx*fNy |
| 87 |
ENDDO |
| 88 |
IF ( errCnt.GT.0 ) THEN |
| 89 |
WRITE(msgBuf,'(A,I3,A)') |
| 90 |
& ' W2_SET_MAP_TILES: found', errCnt, ' Fatal errors' |
| 91 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 92 |
STOP 'ABNORMAL END: S/R W2_SET_MAP_TILES' |
| 93 |
ENDIF |
| 94 |
C-- Check that domain size and (SIZE.h + blankList) match: |
| 95 |
IF ( tCnt.NE.nTiles ) THEN |
| 96 |
WRITE(msgBuf,'(A,I6,A)') |
| 97 |
& 'W2_SET_MAP_TILES: Domain Total # of tiles =', tCnt, ' does' |
| 98 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 99 |
WRITE(msgBuf,'(A,I6)') |
| 100 |
& 'W2_SET_MAP_TILES: not match (SIZE.h+blankList)=', nTiles |
| 101 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 102 |
STOP 'ABNORMAL END: S/R W2_SET_MAP_TILES' |
| 103 |
ENDIF |
| 104 |
|
| 105 |
IF ( W2_mapIO.EQ.1 ) THEN |
| 106 |
C-- Compact IO map (mostly in Y dir): search for Greatest Common Divisor |
| 107 |
C of all x-size (faster to apply GCD to Nb of Tiles in X): |
| 108 |
DO j=1,nFacets |
| 109 |
nnx(j) = facet_dims(2*j-1)/tNx |
| 110 |
ENDDO |
| 111 |
divide = FIND_GCD_N( nnx, nFacets) |
| 112 |
W2_mapIO = divide*tNx |
| 113 |
WRITE(msgBuf,'(A,2(I5,A))') ' W2_mapIO =', W2_mapIO, |
| 114 |
& ' (=', divide, '*sNx)' |
| 115 |
CALL PRINT_MESSAGE( msgBuf, W2_oUnit, SQUEEZE_RIGHT, myThid ) |
| 116 |
ENDIF |
| 117 |
|
| 118 |
C-- Global Map size: |
| 119 |
IF ( W2_mapIO.EQ.-1 ) THEN |
| 120 |
exch2_global_Nx = 0 |
| 121 |
exch2_global_Ny = 0 |
| 122 |
DO j=1,nFacets |
| 123 |
exch2_global_Nx = exch2_global_Nx + facet_dims(2*j-1) |
| 124 |
exch2_global_Ny = MAX( exch2_global_Ny, facet_dims(2*j) ) |
| 125 |
ENDDO |
| 126 |
ELSEIF ( W2_mapIO.EQ.0 ) THEN |
| 127 |
exch2_global_Nx = nbPts |
| 128 |
exch2_global_Ny = 1 |
| 129 |
ELSE |
| 130 |
exch2_global_Nx = W2_mapIO |
| 131 |
exch2_global_Ny = nbPts/W2_mapIO |
| 132 |
ENDIF |
| 133 |
WRITE(msgBuf,'(A,2(A,I8))') ' Global Map (IO):', |
| 134 |
& ' X-size=', exch2_global_Nx, ' , Y-size=', exch2_global_Ny |
| 135 |
CALL PRINT_MESSAGE( msgBuf, W2_oUnit, SQUEEZE_RIGHT, myThid ) |
| 136 |
|
| 137 |
C-- Set tiles mapping within facet (sub-domain) and within Global Map |
| 138 |
WRITE(msgBuf,'(2A)') 'W2_SET_MAP_TILES:', |
| 139 |
& ' tile offset within facet and global Map:' |
| 140 |
CALL PRINT_MESSAGE( msgBuf, W2_oUnit, SQUEEZE_RIGHT, myThid ) |
| 141 |
tId = 0 |
| 142 |
nbPts = 0 |
| 143 |
fBaseX = 0 |
| 144 |
DO j=1,nFacets |
| 145 |
fNx = facet_dims(2*j-1) |
| 146 |
fNy = facet_dims( 2*j ) |
| 147 |
nbTx = fNx/tNx |
| 148 |
nbTy = fNy/tNy |
| 149 |
WRITE(W2_oUnit,'(A,I3,2(A,I6),A,I5,2(A,I4),A)') |
| 150 |
& '- facet', j, ' : X-size=', fNx, ' , Y-size=', fNy, |
| 151 |
& ' ;', nbTx*nbTy, ' tiles (Tx,Ty=', nbTx,',',nbTy,')' |
| 152 |
c CALL PRINT_MESSAGE( msgBuf, W2_oUnit, SQUEEZE_RIGHT, myThid ) |
| 153 |
DO ty=1,nbTy |
| 154 |
DO tx=1,nbTx |
| 155 |
tId = tId + 1 |
| 156 |
C-- Tags blank tile by removing facet # (exch2_myFace) but keeps its location |
| 157 |
tileIsActive = .TRUE. |
| 158 |
DO k=1,nBlankTiles |
| 159 |
IF ( blankList(k).EQ.tId ) tileIsActive = .FALSE. |
| 160 |
ENDDO |
| 161 |
IF ( tileIsActive ) exch2_myFace(tId) = j |
| 162 |
exch2_mydNx ( tId ) = fNx |
| 163 |
exch2_mydNy ( tId ) = fNy |
| 164 |
exch2_tNx ( tId ) = tNx |
| 165 |
exch2_tNy ( tId ) = tNy |
| 166 |
exch2_tBasex( tId ) = (tx-1)*tNx |
| 167 |
exch2_tBasey( tId ) = (ty-1)*tNy |
| 168 |
C-- Global IO Mapping |
| 169 |
IF ( W2_mapIO.EQ.-1 ) THEN |
| 170 |
C- Old format |
| 171 |
exch2_txGlobalo( tId ) = 1 + exch2_tBasex(tId) + fBaseX |
| 172 |
exch2_tyGlobalo( tId ) = 1 + exch2_tBasey(tId) |
| 173 |
ELSEIF ( W2_mapIO.EQ.0 ) THEN |
| 174 |
C- Compact format = 1 long line |
| 175 |
ii = nbPts + exch2_tBasex(tId) + exch2_tBasey(tId)*fNx |
| 176 |
exch2_txGlobalo( tId ) = 1 + ii |
| 177 |
exch2_tyGlobalo( tId ) = 1 |
| 178 |
ELSE |
| 179 |
C Compact format: piled in the Y direction |
| 180 |
ii = nbPts + exch2_tBasex(tId) + exch2_tBasey(tId)*fNx |
| 181 |
exch2_txGlobalo( tId ) = 1 + MOD(ii,W2_mapIO) |
| 182 |
exch2_tyGlobalo( tId ) = 1 + ii/W2_mapIO |
| 183 |
ENDIF |
| 184 |
IF ( prtFlag ) |
| 185 |
& WRITE(W2_oUnit,'(A,I5,3(A,I3),2A,2I5,2A,2I8)') ' tile',tId, |
| 186 |
& ' on facet', exch2_myFace(tId),' (',tx,',',ty,'):', |
| 187 |
& ' offset=', exch2_tBasex(tId), exch2_tBasey(tId),' ;', |
| 188 |
& ' on Glob.Map=', exch2_txGlobalo(tId),exch2_tyGlobalo(tId) |
| 189 |
ENDDO |
| 190 |
ENDDO |
| 191 |
fBaseX = fBaseX + fNx |
| 192 |
nbPts = nbPts + fNx*fNy |
| 193 |
ENDDO |
| 194 |
|
| 195 |
RETURN |
| 196 |
END |
| 197 |
|
| 198 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 199 |
CBOP |
| 200 |
C !ROUTINE: FIND_GCD_N |
| 201 |
|
| 202 |
C !INTERFACE: |
| 203 |
INTEGER FUNCTION FIND_GCD_N( fldList, nFld ) |
| 204 |
|
| 205 |
C !DESCRIPTION: |
| 206 |
C *==========================================================* |
| 207 |
C | FUNCTION FIND_GCD_N |
| 208 |
C | o Find the Greatest Common Divisor of N integers |
| 209 |
C *==========================================================* |
| 210 |
|
| 211 |
C !USES: |
| 212 |
IMPLICIT NONE |
| 213 |
|
| 214 |
C !INPUT PARAMETERS: |
| 215 |
C fldList :: list of integers to search for GCD |
| 216 |
C nFLd :: length of the input integer list. |
| 217 |
INTEGER nFLd |
| 218 |
INTEGER fldList(nFld) |
| 219 |
|
| 220 |
C !LOCAL VARIABLES: |
| 221 |
INTEGER mnFld, divide |
| 222 |
INTEGER j, ii |
| 223 |
LOGICAL flag |
| 224 |
LOGICAL localDBg |
| 225 |
CEOP |
| 226 |
PARAMETER ( localDBg = .FALSE. ) |
| 227 |
c PARAMETER ( localDBg = .TRUE. ) |
| 228 |
|
| 229 |
mnFld = fldList(1) |
| 230 |
DO j=1,nFld |
| 231 |
mnFld = MIN( mnFld, fldList(j) ) |
| 232 |
ENDDO |
| 233 |
IF (localDBg) WRITE(0,'(A,I8)') 'FIND_GCD_N: mnFld=',mnFld |
| 234 |
|
| 235 |
IF (mnFld.GT.1 ) THEN |
| 236 |
divide = 1 |
| 237 |
ii = 2 |
| 238 |
DO WHILE ( ii.LE.mnFld ) |
| 239 |
IF (localDBg) WRITE(0,'(A,I8)') ' GCD : try',ii |
| 240 |
flag = .TRUE. |
| 241 |
DO j=1,nFld |
| 242 |
flag = flag.AND.(MOD(fldList(j),ii).EQ.0 ) |
| 243 |
ENDDO |
| 244 |
IF ( flag ) THEN |
| 245 |
divide = divide*ii |
| 246 |
DO j=1,nFld |
| 247 |
fldList(j) = fldList(j)/ii |
| 248 |
ENDDO |
| 249 |
IF (localDBg) WRITE(0,'(A,I8)') |
| 250 |
& 'FIND_GCD_N: com.fact=',ii |
| 251 |
mnFld = mnFld/ii |
| 252 |
ELSE |
| 253 |
ii = ii+2 |
| 254 |
IF (ii.EQ.4) ii=3 |
| 255 |
ENDIF |
| 256 |
ENDDO |
| 257 |
C- Put back the original Nb: |
| 258 |
IF (localDBg) WRITE(0,'(10I8)') (fldList(j),j=1,nFld) |
| 259 |
DO j=1,nFld |
| 260 |
fldList(j) = fldList(j)*divide |
| 261 |
ENDDO |
| 262 |
ELSE |
| 263 |
divide = MAX( 0, mnFld ) |
| 264 |
ENDIF |
| 265 |
|
| 266 |
FIND_GCD_N = divide |
| 267 |
|
| 268 |
RETURN |
| 269 |
END |
Parent Directory
| 
Revision Log
| 
Revision Graph