| 1 |
C $Header: /u/gcmpack/MITgcm/pkg/obcs/obcs_readparms.F,v 1.35 2011/06/02 22:49:39 jmc Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
#include "OBCS_OPTIONS.h" |
| 5 |
|
| 6 |
CBOP |
| 7 |
C !ROUTINE: OBCS_READPARMS |
| 8 |
C !INTERFACE: |
| 9 |
SUBROUTINE OBCS_READPARMS( myThid ) |
| 10 |
|
| 11 |
C !DESCRIPTION: \bv |
| 12 |
C *==========================================================* |
| 13 |
C | SUBROUTINE OBCS_READPARMS |
| 14 |
C | o Routine to initialize OBCS variables and constants. |
| 15 |
C *==========================================================* |
| 16 |
C \ev |
| 17 |
|
| 18 |
C !USES: |
| 19 |
IMPLICIT NONE |
| 20 |
C === Global variables === |
| 21 |
#include "SIZE.h" |
| 22 |
#include "EEPARAMS.h" |
| 23 |
#include "PARAMS.h" |
| 24 |
#include "OBCS_PARAMS.h" |
| 25 |
#include "OBCS_GRID.h" |
| 26 |
#include "OBCS_SEAICE.h" |
| 27 |
#ifdef ALLOW_ORLANSKI |
| 28 |
#include "ORLANSKI.h" |
| 29 |
#endif |
| 30 |
#ifdef ALLOW_PTRACERS |
| 31 |
#include "PTRACERS_SIZE.h" |
| 32 |
#include "OBCS_PTRACERS.h" |
| 33 |
#endif /* ALLOW_PTRACERS */ |
| 34 |
#ifdef ALLOW_EXCH2 |
| 35 |
#include "W2_EXCH2_SIZE.h" |
| 36 |
#include "W2_EXCH2_TOPOLOGY.h" |
| 37 |
#include "W2_EXCH2_PARAMS.h" |
| 38 |
#endif /* ALLOW_EXCH2 */ |
| 39 |
|
| 40 |
C !INPUT/OUTPUT PARAMETERS: |
| 41 |
C === Routine arguments === |
| 42 |
INTEGER myThid |
| 43 |
|
| 44 |
#ifdef ALLOW_OBCS |
| 45 |
|
| 46 |
C !LOCAL VARIABLES: |
| 47 |
C === Local variables === |
| 48 |
C msgBuf :: Informational/error message buffer |
| 49 |
C iUnit :: Work variable for IO unit number |
| 50 |
CHARACTER*(MAX_LEN_MBUF) msgBuf |
| 51 |
INTEGER iUnit |
| 52 |
INTEGER I, J |
| 53 |
INTEGER bi, bj, iG, jG, iGm, jGm |
| 54 |
#ifdef ALLOW_PTRACERS |
| 55 |
INTEGER iTracer |
| 56 |
#endif |
| 57 |
#ifdef ALLOW_EXCH2 |
| 58 |
INTEGER tN |
| 59 |
#endif /* ALLOW_EXCH2 */ |
| 60 |
|
| 61 |
C These are input arrays (of integers) that contain the *absolute* |
| 62 |
C computational index of an open-boundary (OB) point. |
| 63 |
C A zero (0) element means there is no corresponding OB in that column/row. |
| 64 |
C The computational coordinate refers to "tracer" cells. |
| 65 |
C For a northern/southern OB, the OB V point is to the south/north. |
| 66 |
C For an eastern/western OB, the OB U point is to the west/east. |
| 67 |
C eg. |
| 68 |
C OB_Jnorth(3)=34 means that: |
| 69 |
C T( 3 ,34) is a an OB point |
| 70 |
C U(3:4,34) is a an OB point |
| 71 |
C V( 4 ,34) is a an OB point |
| 72 |
C while |
| 73 |
C OB_Jsouth(3)=1 means that: |
| 74 |
C T( 3 ,1) is a an OB point |
| 75 |
C U(3:4,1) is a an OB point |
| 76 |
C V( 4 ,2) is a an OB point |
| 77 |
C |
| 78 |
C For convenience, negative values for Jnorth/Ieast refer to |
| 79 |
C points relative to the Northern/Eastern edges of the model |
| 80 |
C eg. OB_Jnorth(3)=-1 means that the point (3,Ny) is a northern O-B. |
| 81 |
C |
| 82 |
C With exch2, the global domain used for specifying the boundary (and |
| 83 |
C boundary value files) is different for N,S and E,W boundaries: |
| 84 |
C - for N,S, the facets are stacked in x (like W2_mapIO=-1) |
| 85 |
C - for E,W, the facets are stacked in y, so that E,W boundaries in |
| 86 |
C different facets cannot have the same I |
| 87 |
C |
| 88 |
C OB_Jnorth(W2_maxXStackNx) :: global index array of northern open-boundary point |
| 89 |
C OB_Jsouth(W2_maxXStackNx) :: global index array of southern open-boundary point |
| 90 |
C OB_Ieast(W2_maxYStackNy) :: global index array of eastern open-boundary point |
| 91 |
C OB_Iwest(W2_maxYStackNy) :: global index array of western open-boundary point |
| 92 |
|
| 93 |
COMMON/OBCS_GLOBAL/ OB_Jnorth, OB_Jsouth, OB_Ieast, OB_Iwest |
| 94 |
#ifdef ALLOW_EXCH2 |
| 95 |
INTEGER OB_Jnorth(W2_maxXStackNx) |
| 96 |
INTEGER OB_Jsouth(W2_maxXStackNx) |
| 97 |
INTEGER OB_Ieast(W2_maxYStackNy) |
| 98 |
INTEGER OB_Iwest(W2_maxYStackNy) |
| 99 |
#else |
| 100 |
INTEGER OB_Jnorth(Nx) |
| 101 |
INTEGER OB_Jsouth(Nx) |
| 102 |
INTEGER OB_Ieast(Ny) |
| 103 |
INTEGER OB_Iwest(Ny) |
| 104 |
#endif |
| 105 |
|
| 106 |
C With exch2, we use different global domains for specifying |
| 107 |
C N,S resp. E,W boundaries (and for reading in the corresponding data): |
| 108 |
C |
| 109 |
C OBNS_Nx :: width of global domain for OB_Jnorth, OB_Jsouth |
| 110 |
C OBNS_Ny :: height of global domain for OB_Jnorth, OB_Jsouth |
| 111 |
C OBEW_Nx :: width of global domain for OB_Ieast, OB_Iwest |
| 112 |
C OBEW_Ny :: height of global domain for OB_Ieast, OB_Iwest |
| 113 |
|
| 114 |
INTEGER OBNS_Nx, OBNS_Ny |
| 115 |
INTEGER OBEW_Nx, OBEW_Ny |
| 116 |
|
| 117 |
#ifdef ALLOW_EXCH2 |
| 118 |
C buf :: used to exchange OB_Jnorth, ... |
| 119 |
_RS buf(1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
| 120 |
#endif |
| 121 |
CEOP |
| 122 |
|
| 123 |
C retired parameters |
| 124 |
INTEGER nRetired |
| 125 |
LOGICAL useOBCSYearlyFields |
| 126 |
|
| 127 |
NAMELIST /OBCS_PARM01/ |
| 128 |
& insideOBmaskFile, |
| 129 |
& OB_Jnorth,OB_Jsouth,OB_Ieast,OB_Iwest, |
| 130 |
& useOrlanskiNorth,useOrlanskiSouth, |
| 131 |
& useOrlanskiEast,useOrlanskiWest, |
| 132 |
& useStevensNorth,useStevensSouth, |
| 133 |
& useStevensEast,useStevensWest, |
| 134 |
& OBNuFile,OBNvFile,OBNtFile,OBNsFile,OBNaFile,OBNhFile, |
| 135 |
& OBSuFile,OBSvFile,OBStFile,OBSsFile,OBSaFile,OBShFile, |
| 136 |
& OBEuFile,OBEvFile,OBEtFile,OBEsFile,OBEaFile,OBEhFile, |
| 137 |
& OBWuFile,OBWvFile,OBWtFile,OBWsFile,OBWaFile,OBWhFile, |
| 138 |
& OBNslFile,OBSslFile,OBEslFile,OBWslFile, |
| 139 |
& OBNsnFile,OBSsnFile,OBEsnFile,OBWsnFile, |
| 140 |
& OBNuiceFile,OBSuiceFile,OBEuiceFile,OBWuiceFile, |
| 141 |
& OBNviceFile,OBSviceFile,OBEviceFile,OBWviceFile, |
| 142 |
& OBNetaFile, OBSetaFile, OBEetaFile, OBWetaFile, |
| 143 |
& OBNwFile, OBSwFile, OBEwFile, OBWwFile, |
| 144 |
#ifdef ALLOW_PTRACERS |
| 145 |
& OBNptrFile,OBSptrFile,OBEptrFile,OBWptrFile, |
| 146 |
#endif |
| 147 |
& useOBCSsponge, useOBCSbalance, useOBCSprescribe, |
| 148 |
& OBCS_balanceFacN, OBCS_balanceFacS, |
| 149 |
& OBCS_balanceFacE, OBCS_balanceFacW, |
| 150 |
& useOBCSYearlyFields, OBCSfixTopo, |
| 151 |
& OBCS_uvApplyFac, |
| 152 |
& OBCS_monitorFreq, OBCS_monSelect, OBCSprintDiags |
| 153 |
|
| 154 |
#ifdef ALLOW_ORLANSKI |
| 155 |
NAMELIST /OBCS_PARM02/ |
| 156 |
& CMAX, cvelTimeScale, CFIX, useFixedCEast, useFixedCWest |
| 157 |
#endif |
| 158 |
|
| 159 |
#ifdef ALLOW_OBCS_SPONGE |
| 160 |
NAMELIST /OBCS_PARM03/ |
| 161 |
& Urelaxobcsinner,Urelaxobcsbound, |
| 162 |
& Vrelaxobcsinner,Vrelaxobcsbound, |
| 163 |
& spongeThickness |
| 164 |
#endif |
| 165 |
#ifdef ALLOW_OBCS_STEVENS |
| 166 |
NAMELIST /OBCS_PARM04/ |
| 167 |
& TrelaxStevens,SrelaxStevens, |
| 168 |
& useStevensPhaseVel,useStevensAdvection |
| 169 |
#endif /* ALLOW_OBCS_STEVENS */ |
| 170 |
|
| 171 |
_BEGIN_MASTER(myThid) |
| 172 |
|
| 173 |
#ifdef ALLOW_EXCH2 |
| 174 |
OBNS_Nx = exch2_xStack_Nx |
| 175 |
OBNS_Ny = exch2_xStack_Ny |
| 176 |
OBEW_Nx = exch2_yStack_Nx |
| 177 |
OBEW_Ny = exch2_yStack_Ny |
| 178 |
#else |
| 179 |
OBNS_Nx = Nx |
| 180 |
OBNS_Ny = Ny |
| 181 |
OBEW_Nx = Nx |
| 182 |
OBEW_Ny = Ny |
| 183 |
#endif |
| 184 |
|
| 185 |
C-- Default flags and values for OBCS |
| 186 |
insideOBmaskFile = ' ' |
| 187 |
DO I=1,OBNS_Nx |
| 188 |
OB_Jnorth(I)=0 |
| 189 |
OB_Jsouth(I)=0 |
| 190 |
ENDDO |
| 191 |
DO J=1,OBEW_Ny |
| 192 |
OB_Ieast(J)=0 |
| 193 |
OB_Iwest(J)=0 |
| 194 |
ENDDO |
| 195 |
useOrlanskiNorth =.FALSE. |
| 196 |
useOrlanskiSouth =.FALSE. |
| 197 |
useOrlanskiEast =.FALSE. |
| 198 |
useOrlanskiWest =.FALSE. |
| 199 |
useStevensNorth =.FALSE. |
| 200 |
useStevensSouth =.FALSE. |
| 201 |
useStevensEast =.FALSE. |
| 202 |
useStevensWest =.FALSE. |
| 203 |
useStevensPhaseVel =.TRUE. |
| 204 |
useStevensAdvection=.TRUE. |
| 205 |
useOBCSsponge =.FALSE. |
| 206 |
useOBCSbalance =.FALSE. |
| 207 |
OBCS_balanceFacN = 1. _d 0 |
| 208 |
OBCS_balanceFacS = 1. _d 0 |
| 209 |
OBCS_balanceFacE = 1. _d 0 |
| 210 |
OBCS_balanceFacW = 1. _d 0 |
| 211 |
useOBCSprescribe =.FALSE. |
| 212 |
OBCSfixTopo =.FALSE. |
| 213 |
OBCS_uvApplyFac = 1. _d 0 |
| 214 |
OBCS_monitorFreq = monitorFreq |
| 215 |
OBCS_monSelect = 0 |
| 216 |
OBCSprintDiags = debugLevel.GE.debLevC |
| 217 |
|
| 218 |
OBNuFile = ' ' |
| 219 |
OBNvFile = ' ' |
| 220 |
OBNtFile = ' ' |
| 221 |
OBNsFile = ' ' |
| 222 |
OBNaFile = ' ' |
| 223 |
OBNslFile = ' ' |
| 224 |
OBNsnFile = ' ' |
| 225 |
OBNuiceFile = ' ' |
| 226 |
OBNviceFile = ' ' |
| 227 |
OBNhFile = ' ' |
| 228 |
OBSuFile = ' ' |
| 229 |
OBSvFile = ' ' |
| 230 |
OBStFile = ' ' |
| 231 |
OBSsFile = ' ' |
| 232 |
OBSaFile = ' ' |
| 233 |
OBShFile = ' ' |
| 234 |
OBSslFile = ' ' |
| 235 |
OBSsnFile = ' ' |
| 236 |
OBSuiceFile = ' ' |
| 237 |
OBSviceFile = ' ' |
| 238 |
OBEuFile = ' ' |
| 239 |
OBEvFile = ' ' |
| 240 |
OBEtFile = ' ' |
| 241 |
OBEsFile = ' ' |
| 242 |
OBEaFile = ' ' |
| 243 |
OBEhFile = ' ' |
| 244 |
OBEslFile = ' ' |
| 245 |
OBEsnFile = ' ' |
| 246 |
OBEuiceFile = ' ' |
| 247 |
OBEviceFile = ' ' |
| 248 |
OBWuFile = ' ' |
| 249 |
OBWvFile = ' ' |
| 250 |
OBWtFile = ' ' |
| 251 |
OBWsFile = ' ' |
| 252 |
OBWaFile = ' ' |
| 253 |
OBWhFile = ' ' |
| 254 |
OBWslFile = ' ' |
| 255 |
OBWsnFile = ' ' |
| 256 |
OBWuiceFile = ' ' |
| 257 |
OBWviceFile = ' ' |
| 258 |
OBNetaFile = ' ' |
| 259 |
OBSetaFile = ' ' |
| 260 |
OBEetaFile = ' ' |
| 261 |
OBWetaFile = ' ' |
| 262 |
OBNwFile = ' ' |
| 263 |
OBSwFile = ' ' |
| 264 |
OBEwFile = ' ' |
| 265 |
OBWwFile = ' ' |
| 266 |
#ifdef ALLOW_PTRACERS |
| 267 |
DO iTracer = 1, PTRACERS_num |
| 268 |
OBNptrFile(iTracer) = ' ' |
| 269 |
OBSptrFile(iTracer) = ' ' |
| 270 |
OBEptrFile(iTracer) = ' ' |
| 271 |
OBWptrFile(iTracer) = ' ' |
| 272 |
ENDDO |
| 273 |
#endif |
| 274 |
C- retired parameters |
| 275 |
nRetired = 0 |
| 276 |
useOBCSYearlyFields = .FALSE. |
| 277 |
|
| 278 |
C Open and read the data.obcs file |
| 279 |
WRITE(msgBuf,'(A)') ' OBCS_READPARMS: opening data.obcs' |
| 280 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 281 |
& SQUEEZE_RIGHT , myThid ) |
| 282 |
CALL OPEN_COPY_DATA_FILE( |
| 283 |
I 'data.obcs', 'OBCS_READPARMS', |
| 284 |
O iUnit, |
| 285 |
I myThid ) |
| 286 |
|
| 287 |
C-- Read parameters from open data file |
| 288 |
READ(UNIT=iUnit,NML=OBCS_PARM01) |
| 289 |
|
| 290 |
C- retired parameter |
| 291 |
IF ( useOBCSYearlyFields ) THEN |
| 292 |
nRetired = nRetired + 1 |
| 293 |
WRITE(msgBuf,'(A,A)') |
| 294 |
& 'OBCS_READPARMS: "useOBCSYearlyFields"', |
| 295 |
& ' no longer allowed in file "data.obcs"' |
| 296 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 297 |
WRITE(msgBuf,'(A,A)') 'OBCS_READPARMS: ', |
| 298 |
& ' was moved to "data.exf", namelist: "EXF_NML_OBCS"' |
| 299 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 300 |
ENDIF |
| 301 |
|
| 302 |
#ifdef ALLOW_ORLANSKI |
| 303 |
C Default Orlanski radiation parameters |
| 304 |
CMAX = 0.45 _d 0 /* maximum allowable phase speed-CFL for AB-II */ |
| 305 |
cvelTimeScale = 2000.0 _d 0 /* Averaging period for phase speed in sec. */ |
| 306 |
CFIX = 0.8 _d 0 /* Fixed boundary phase speed in m/s */ |
| 307 |
useFixedCEast=.FALSE. |
| 308 |
useFixedCWest=.FALSE. |
| 309 |
IF (useOrlanskiNorth.OR. |
| 310 |
& useOrlanskiSouth.OR. |
| 311 |
& useOrlanskiEast.OR. |
| 312 |
& useOrlanskiWest) |
| 313 |
& READ(UNIT=iUnit,NML=OBCS_PARM02) |
| 314 |
#endif |
| 315 |
|
| 316 |
#ifdef ALLOW_OBCS_SPONGE |
| 317 |
C Default sponge layer parameters: |
| 318 |
C sponge layer is turned off by default |
| 319 |
spongeThickness = 0 |
| 320 |
Urelaxobcsinner = 0. _d 0 |
| 321 |
Urelaxobcsbound = 0. _d 0 |
| 322 |
Vrelaxobcsinner = 0. _d 0 |
| 323 |
Vrelaxobcsbound = 0. _d 0 |
| 324 |
CML this was the previous default in units of days |
| 325 |
CML spongeThickness = 2 |
| 326 |
CML Urelaxobcsinner = 5. _d 0 |
| 327 |
CML Urelaxobcsbound = 1. _d 0 |
| 328 |
CML Vrelaxobcsinner = 5. _d 0 |
| 329 |
CML Vrelaxobcsbound = 1. _d 0 |
| 330 |
IF (useOBCSsponge) |
| 331 |
& READ(UNIT=iUnit,NML=OBCS_PARM03) |
| 332 |
#endif |
| 333 |
#ifdef ALLOW_OBCS_STEVENS |
| 334 |
TrelaxStevens = 0. _d 0 |
| 335 |
SrelaxStevens = 0. _d 0 |
| 336 |
IF ( useStevensNorth .OR. useStevensSouth |
| 337 |
& .OR. useStevensEast .OR. useStevensWest ) |
| 338 |
& READ(UNIT=iUnit,NML=OBCS_PARM04) |
| 339 |
#endif |
| 340 |
|
| 341 |
WRITE(msgBuf,'(A)') ' OBCS_READPARMS: finished reading data.obcs' |
| 342 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 343 |
& SQUEEZE_RIGHT , myThid ) |
| 344 |
|
| 345 |
C-- Close the open data file |
| 346 |
CLOSE(iUnit) |
| 347 |
|
| 348 |
C- retired parameter |
| 349 |
IF ( nRetired .GT. 0 ) THEN |
| 350 |
WRITE(msgBuf,'(A)') |
| 351 |
& 'OBCS_READPARMS: reading parameter file "data.obcs"' |
| 352 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 353 |
WRITE(msgBuf,'(A)') |
| 354 |
& 'some out of date parameters were found in namelist' |
| 355 |
CALL PRINT_ERROR( msgBuf, myThid ) |
| 356 |
STOP 'ABNORMAL END: S/R OBCS_READPARMS' |
| 357 |
ENDIF |
| 358 |
|
| 359 |
C- Account for periodicity if negative indices were supplied |
| 360 |
DO J=1,OBEW_Ny |
| 361 |
IF (OB_Ieast(J).LT.0) OB_Ieast(J)=OB_Ieast(J)+OBEW_Nx+1 |
| 362 |
ENDDO |
| 363 |
DO I=1,OBNS_Nx |
| 364 |
IF (OB_Jnorth(I).LT.0) OB_Jnorth(I)=OB_Jnorth(I)+OBNS_Ny+1 |
| 365 |
ENDDO |
| 366 |
IF ( debugLevel.GE.debLevA ) THEN |
| 367 |
c write(*,*) 'OB Jn =',OB_Jnorth |
| 368 |
c write(*,*) 'OB Js =',OB_Jsouth |
| 369 |
c write(*,*) 'OB Ie =',OB_Ieast |
| 370 |
c write(*,*) 'OB Iw =',OB_Iwest |
| 371 |
WRITE(msgBuf,'(A)') ' Northern OB global indices : OB_Jnorth =' |
| 372 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 373 |
& SQUEEZE_RIGHT, myThid ) |
| 374 |
CALL PRINT_LIST_I( OB_Jnorth, 1, OBNS_Nx, INDEX_I, |
| 375 |
& .FALSE., .TRUE., standardMessageUnit ) |
| 376 |
WRITE(msgBuf,'(A)') ' Southern OB global indices : OB_Jsouth =' |
| 377 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 378 |
& SQUEEZE_RIGHT, myThid ) |
| 379 |
CALL PRINT_LIST_I( OB_Jsouth, 1, OBNS_Nx, INDEX_I, |
| 380 |
& .FALSE., .TRUE., standardMessageUnit ) |
| 381 |
WRITE(msgBuf,'(A)') ' Eastern OB global indices : OB_Ieast =' |
| 382 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 383 |
& SQUEEZE_RIGHT, myThid ) |
| 384 |
CALL PRINT_LIST_I( OB_Ieast, 1, OBEW_Ny, INDEX_J, |
| 385 |
& .FALSE., .TRUE., standardMessageUnit ) |
| 386 |
WRITE(msgBuf,'(A)') ' Western OB global indices : OB_Iwest =' |
| 387 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 388 |
& SQUEEZE_RIGHT, myThid ) |
| 389 |
CALL PRINT_LIST_I( OB_Iwest, 1, OBEW_Ny, INDEX_J, |
| 390 |
& .FALSE., .TRUE., standardMessageUnit ) |
| 391 |
WRITE(msgBuf,'(A)') ' ' |
| 392 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 393 |
& SQUEEZE_RIGHT, myThid ) |
| 394 |
ENDIF |
| 395 |
|
| 396 |
_END_MASTER(myThid) |
| 397 |
C-- Everyone else must wait for the parameters to be loaded |
| 398 |
_BARRIER |
| 399 |
|
| 400 |
C-- Calculate the tiled index arrays OB_Jn/Js/Ie/Iw here from the |
| 401 |
C global arrays OB_Jnorth/Jsouth/Ieast/Iwest. |
| 402 |
C Note: This part of the code has been moved from obcs_init_fixed to |
| 403 |
C routine routine because the OB_Jn/Js/Ie/Iw index arrays are |
| 404 |
C required by ini_depth which is called before obcs_init_fixed |
| 405 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 406 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 407 |
|
| 408 |
DO I=1-Olx,sNx+Olx |
| 409 |
OB_Jn(I,bi,bj)=0 |
| 410 |
OB_Js(I,bi,bj)=0 |
| 411 |
ENDDO |
| 412 |
|
| 413 |
DO J=1-Oly,sNy+Oly |
| 414 |
OB_Ie(J,bi,bj)=0 |
| 415 |
OB_Iw(J,bi,bj)=0 |
| 416 |
ENDDO |
| 417 |
|
| 418 |
#ifdef ALLOW_EXCH2 |
| 419 |
C We apply OBCS only inside tile and exchange overlaps later |
| 420 |
tN = W2_myTileList(bi,bj) |
| 421 |
C 1. N/S boundaries |
| 422 |
DO J=1,sNy |
| 423 |
C convert from local y index J to global y index jG |
| 424 |
c for N/S boundaries, we use faces stacked in x direction |
| 425 |
jG = exch2_tyXStackLo(tN)+J-1 |
| 426 |
C loop over local x index I |
| 427 |
DO I=1,sNx |
| 428 |
iG = exch2_txXStackLo(tN)+I-1 |
| 429 |
IF (jG.EQ.OB_Jnorth(iG)) OB_Jn(I,bi,bj)=J |
| 430 |
IF (jG.EQ.OB_Jsouth(iG)) OB_Js(I,bi,bj)=J |
| 431 |
ENDDO |
| 432 |
ENDDO |
| 433 |
C 2. E/W boundaries |
| 434 |
DO J=1,sNy |
| 435 |
C convert from local y index J to global y index jG |
| 436 |
c for E/W boundaries, we use faces stacked in y direction |
| 437 |
jG = exch2_tyYStackLo(tN)+J-1 |
| 438 |
C loop over local x index I |
| 439 |
DO I=1,sNx |
| 440 |
iG = exch2_txYStackLo(tN)+I-1 |
| 441 |
IF (iG.EQ.OB_Ieast(jG)) OB_Ie(J,bi,bj)=I |
| 442 |
IF (iG.EQ.OB_Iwest(jG)) OB_Iw(J,bi,bj)=I |
| 443 |
ENDDO |
| 444 |
ENDDO |
| 445 |
|
| 446 |
#else /* ALLOW_EXCH2 */ |
| 447 |
|
| 448 |
DO J=1-Oly,sNy+Oly |
| 449 |
C convert from local y index J to global y index jG |
| 450 |
jG = myYGlobalLo-1+(bj-1)*sNy+J |
| 451 |
C use periodicity to deal with out of range points caused by the overlaps. |
| 452 |
C they will be excluded by the mask in any case, but this saves array |
| 453 |
C out-of-bounds errors here. |
| 454 |
jGm = 1+mod( jG-1+Ny , Ny ) |
| 455 |
C loop over local x index I |
| 456 |
DO I=1,sNx |
| 457 |
iG = myXGlobalLo-1+(bi-1)*sNx+I |
| 458 |
iGm = 1+mod( iG-1+Nx , Nx ) |
| 459 |
C OB_Ieast(jGm) allows for the eastern boundary to be at variable x locations |
| 460 |
IF (iG.EQ.OB_Ieast(jGm)) OB_Ie(J,bi,bj)=I |
| 461 |
IF (iG.EQ.OB_Iwest(jGm)) OB_Iw(J,bi,bj)=I |
| 462 |
ENDDO |
| 463 |
ENDDO |
| 464 |
DO J=1,sNy |
| 465 |
jG = myYGlobalLo-1+(bj-1)*sNy+J |
| 466 |
jGm = 1+mod( jG-1+Ny , Ny ) |
| 467 |
DO I=1-Olx,sNx+Olx |
| 468 |
iG = myXGlobalLo-1+(bi-1)*sNx+I |
| 469 |
iGm = 1+mod( iG-1+Nx , Nx ) |
| 470 |
C OB_Jnorth(iGm) allows for the northern boundary to be at variable y locations |
| 471 |
IF (jG.EQ.OB_Jnorth(iGm)) OB_Jn(I,bi,bj)=J |
| 472 |
IF (jG.EQ.OB_Jsouth(iGm)) OB_Js(I,bi,bj)=J |
| 473 |
ENDDO |
| 474 |
ENDDO |
| 475 |
#endif /* ALLOW_EXCH2 */ |
| 476 |
|
| 477 |
C bi,bj-loops |
| 478 |
ENDDO |
| 479 |
ENDDO |
| 480 |
|
| 481 |
#ifdef ALLOW_EXCH2 |
| 482 |
C exchange with neighbors |
| 483 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 484 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 485 |
DO J=1,sNy |
| 486 |
buf(sNx,J,bi,bj) = OB_Ie(J,bi,bj) |
| 487 |
buf( 1,J,bi,bj) = OB_Iw(J,bi,bj) |
| 488 |
ENDDO |
| 489 |
ENDDO |
| 490 |
ENDDO |
| 491 |
CALL EXCH_3D_RS( buf, 1, myThid ) |
| 492 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 493 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 494 |
DO J=1-Oly,sNy+Oly |
| 495 |
OB_Ie(J,bi,bj) = buf(sNx,J,bi,bj) |
| 496 |
OB_Iw(J,bi,bj) = buf( 1,J,bi,bj) |
| 497 |
ENDDO |
| 498 |
ENDDO |
| 499 |
ENDDO |
| 500 |
|
| 501 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 502 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 503 |
DO I=1,sNx |
| 504 |
buf(I,sNy,bi,bj) = OB_Jn(I,bi,bj) |
| 505 |
buf(I, 1,bi,bj) = OB_Js(I,bi,bj) |
| 506 |
ENDDO |
| 507 |
ENDDO |
| 508 |
ENDDO |
| 509 |
CALL EXCH_3D_RS( buf, 1, myThid ) |
| 510 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 511 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 512 |
DO I=1-Olx,sNx+Olx |
| 513 |
OB_Jn(I,bi,bj) = buf(I,sNy,bi,bj) |
| 514 |
OB_Js(I,bi,bj) = buf(I, 1,bi,bj) |
| 515 |
ENDDO |
| 516 |
ENDDO |
| 517 |
ENDDO |
| 518 |
#endif /* ALLOW_EXCH2 */ |
| 519 |
|
| 520 |
#endif /* ALLOW_OBCS */ |
| 521 |
RETURN |
| 522 |
END |
Parent Directory
| 
Revision Log
| 
Revision Graph