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C $Header: /u/gcmpack/models/MITgcmUV/model/src/checkpoint.F,v 1.2 1999/07/30 15:42:58 adcroft Exp $ |
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|
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#include "CPP_OPTIONS.h" |
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|
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C-- File read_write.F: Routines to handle mid-level I/O interface. |
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C-- Contents |
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C-- o SET_WRITE_GLOBAL_PICKUP |
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C-- o READ_CHECKPOINT - Write out checkpoint files for restarting. |
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C-- o WRITE_CHECKPOINT - Write out checkpoint files for restarting. |
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|
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SUBROUTINE SET_WRITE_GLOBAL_PICKUP ( flag ) |
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IMPLICIT NONE |
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C SET_WRITE_GLOBAL_FLD( flag ) sets an internal logical state to |
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C indicate whether files written by subsequent call to the |
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C READ_WRITE_FLD package should create "global" or "tiled" files. |
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C flag = .TRUE. indicates "global" files |
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C flag = .FALSE. indicates "tiled" files |
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C |
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C Arguments |
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LOGICAL flag |
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C Common |
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COMMON /PCKP_GBLFLS/ globalFile |
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LOGICAL globalFile |
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C |
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globalFile=flag |
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C |
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RETURN |
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END |
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|
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CStartofinterface |
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SUBROUTINE READ_CHECKPOINT ( myIt, myThid ) |
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C /==========================================================\ |
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C | SUBROUTINE READ_PICKUP | |
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C | o Controlling routine for IO to write restart file. | |
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C |==========================================================| |
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C | Read model checkpoint files for use in restart. | |
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C \==========================================================/ |
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IMPLICIT NONE |
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|
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C == Global variables === |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "DYNVARS.h" |
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#include "CG2D.h" |
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#ifdef ALLOW_NONHYDROSTATIC |
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#include "GW.h" |
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#endif |
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|
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INTEGER IO_ERRCOUNT |
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EXTERNAL IO_ERRCOUNT |
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|
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C == Routine arguments == |
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C myThid - Thread number for this instance of the routine. |
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C myIt - Iteration number |
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INTEGER myThid |
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INTEGER myIt |
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CEndofinterface |
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|
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C == Local variables == |
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INTEGER oldPrec |
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CHARACTER*(MAX_LEN_FNAM) fn |
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INTEGER prec |
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|
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C-- Going to really do some IO. Make everyone except master thread wait. |
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_BARRIER |
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_BEGIN_MASTER( myThid ) |
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|
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C Force 64-bit IO |
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oldPrec = readBinaryPrec |
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readBinaryPrec = precFloat64 |
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|
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#ifdef OLD_STYLE_WITH_MANY_FILES |
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C-- Read model fields |
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C Raw fields |
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CALL READ_REC_XYZ_RL( 'uVel', uVel, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'gU', gU, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'gUNm1', gUNm1, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'vVel', vVel, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'gV', gV, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'gVNm1', gVNm1, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'theta', theta, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'gT', gT, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'gTNm1', gTNm1, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'salt', salt, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'gS', gS, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'gSNm1', gSNm1, 1,myIter, myThid) |
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CALL READ_REC_XY_RL ('cg2d_x', cg2d_x, 1,myIter, myThid) |
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#ifdef INCLUDE_CD_CODE |
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CALL READ_REC_XY_RL |
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& ( 'cg2d_xNM1',suff, cg2d_xNM1, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'uVelD', uVelD, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'vVelD', vVelD, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'uNM1', uNM1, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'vNM1', vNM1, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'guCD', guCD, 1,myIter, myThid) |
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CALL READ_REC_XYZ_RL( 'gvCD', gvCD, 1,myIter, myThid) |
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#endif |
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#ifdef ALLOW_NONHYDROSTATIC |
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IF ( nonHydrostatic ) THEN |
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CALL READ_REC_XYZ_RL( 'wVel',wVel, 1,myIter,myThid) |
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CALL READ_REC_XYZ_RL( 'gW',gW, 1,myIter,myThid) |
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CALL READ_REC_XYZ_RL( 'gWnm1',gWnm1, 1,myIter,myThid) |
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ENDIF |
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#endif |
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#else |
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|
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prec = precFloat64 |
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|
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C-- Read model fields |
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WRITE(fn,'(A,I10.10)') 'pickup.',myIt |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,uVel, 1,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,gU, 2,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,gUnm1, 3,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,vVel, 4,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,gV, 5,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,gVnm1, 6,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,theta, 7,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,gT, 8,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,gTnm1, 9,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,salt, 10,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,gS, 11,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,gSnm1, 12,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL', 1,cg2d_x,12*Nr+1,myThid) |
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#ifdef INCLUDE_CD_CODE |
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WRITE(fn,'(A,I10.10)') 'pickup_cd.',myIt |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,uVelD, 1,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,vVelD, 2,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,uNM1, 3,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,vNM1, 4,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,guCD, 5,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,gvCD, 6,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL', 1,cg2d_xNM1,6*Nr+1,myThid) |
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#endif |
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#ifdef ALLOW_NONHYDROSTATIC |
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IF ( nonHydrostatic ) THEN |
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WRITE(fn,'(A,I10.10)') 'pickup_nh.',myIt |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,wVel, 1,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,gW, 2,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,gWnm1,3,myThid) |
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ENDIF |
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#endif |
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|
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#endif |
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|
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C Reset default IO precision |
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readBinaryPrec = oldPrec |
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|
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_END_MASTER( myThid ) |
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_BARRIER |
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|
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C-- Fill in edge regions |
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_EXCH_XYZ_R8(uVel , myThid ) |
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_EXCH_XYZ_R8(gu , myThid ) |
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_EXCH_XYZ_R8(guNM1 , myThid ) |
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_EXCH_XYZ_R8(vVel , myThid ) |
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_EXCH_XYZ_R8(gv , myThid ) |
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_EXCH_XYZ_R8(gvNM1 , myThid ) |
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_EXCH_XYZ_R8(theta , myThid ) |
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_EXCH_XYZ_R8(gt , myThid ) |
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_EXCH_XYZ_R8(gtNM1 , myThid ) |
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_EXCH_XYZ_R8(salt , myThid ) |
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_EXCH_XYZ_R8(gs , myThid ) |
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_EXCH_XYZ_R8(gsNM1 , myThid ) |
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_EXCH_XY_R8 (cg2d_x, myThid ) |
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#ifdef INCLUDE_CD_CODE |
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_EXCH_XY_R8( cg2d_xNM1, myThid ) |
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_EXCH_XYZ_R8( uVelD, myThid ) |
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_EXCH_XYZ_R8( vVelD, myThid ) |
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_EXCH_XYZ_R8( uNM1, myThid ) |
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_EXCH_XYZ_R8( vNM1, myThid ) |
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_EXCH_XYZ_R8( guCD, myThid ) |
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_EXCH_XYZ_R8( gvCD, myThid ) |
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#endif |
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#ifdef ALLOW_NONHYDROSTATIC |
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IF ( nonHydrostatic ) THEN |
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_EXCH_XYZ_R8(wVel , myThid ) |
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_EXCH_XYZ_R8(gW , myThid ) |
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_EXCH_XYZ_R8(gWNM1 , myThid ) |
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ENDIF |
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#endif |
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|
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RETURN |
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END |
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|
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CStartofinterface |
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SUBROUTINE WRITE_CHECKPOINT ( modelEnd, myCurrentTime, |
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& myIt, myThid ) |
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C /==========================================================\ |
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C | SUBROUTINE WRITE_PICKUP | |
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C | o Controlling routine for IO to write restart file. | |
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C |==========================================================| |
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C | Write model checkpoint files for use in restart. | |
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C | This routine writes both "rolling-checkpoint" files | |
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C | and permanent checkpoint files. A rolling checkpoint | |
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C | works through a circular list of suffices. Generally the | |
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C | circular list has two entries so that a rolling | |
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C | checkpoint will overwrite the last rolling checkpoint | |
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C | but one. This is useful for running long jobs without | |
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C | filling too much disk space. | |
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C | In a permanent checkpoint data is written suffixed by | |
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C | the current timestep number. This sort of checkpoint can | |
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C | be used to provided a snap-shot from which the model | |
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C | can be rerun. | |
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C \==========================================================/ |
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IMPLICIT NONE |
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|
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C == Global variables === |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "DYNVARS.h" |
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#include "CG2D.h" |
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#ifdef ALLOW_NONHYDROSTATIC |
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#include "GW.h" |
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#endif |
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|
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LOGICAL DIFFERENT_MULTIPLE |
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EXTERNAL DIFFERENT_MULTIPLE |
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INTEGER IO_ERRCOUNT |
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EXTERNAL IO_ERRCOUNT |
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|
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C == Routine arguments == |
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C modelEnd - Checkpoint call at end of model run. |
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C myThid - Thread number for this instance of the routine. |
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C myIt - Iteration number |
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C myCurrentTime - Current time of simulation ( s ) |
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LOGICAL modelEnd |
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INTEGER myThid |
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INTEGER myIt |
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_RL myCurrentTime |
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CEndofinterface |
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|
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C == Common blocks == |
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COMMON /PCKP_GBLFLS/ globalFile |
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LOGICAL globalFile |
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|
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C == Local variables == |
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C permCheckPoint - Flag indicating whether a permanent checkpoint will |
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C be written. |
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LOGICAL permCheckPoint |
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INTEGER oldPrec |
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CHARACTER*(MAX_LEN_FNAM) fn |
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INTEGER prec |
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LOGICAL lgf |
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|
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permCheckPoint = .FALSE. |
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permCheckPoint= |
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& DIFFERENT_MULTIPLE(pChkptFreq,myCurrentTime, |
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& myCurrentTime-deltaTClock) |
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|
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IF ( |
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& (.NOT. modelEnd .AND. ( |
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& permCheckPoint |
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& .OR. |
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& DIFFERENT_MULTIPLE(chkptFreq, |
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& myCurrentTime,myCurrentTime-deltaTClock) |
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& ) |
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& ) |
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& .OR. |
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& ( |
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& modelEnd |
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& .AND. .NOT. |
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& permCheckPoint |
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& .AND. .NOT. |
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& DIFFERENT_MULTIPLE(chkptFreq, |
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& myCurrentTime,myCurrentTime-deltaTClock) |
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& ) |
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& ) THEN |
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|
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C-- Going to really do some IO. Make everyone except master thread wait. |
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_BARRIER |
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_BEGIN_MASTER( myThid ) |
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|
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C Force 64-bit IO |
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oldPrec = writeBinaryPrec |
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writeBinaryPrec = precFloat64 |
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|
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#ifdef OLD_STYLE_WITH_MANY_FILES |
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C-- Write model fields |
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C Raw fields |
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CALL WRITE_REC_XYZ_RL( 'uVel', uVel, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'gU', gU, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'gUNm1', gUNm1, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'vVel', vVel, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'gV', gV, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'gVNm1', gVNm1, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'theta', theta, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'gT', gT, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'gTNm1', gTNm1, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'salt', salt, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'gS', gS, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'gSNm1', gSNm1, 1,myIter, myThid) |
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CALL WRITE_REC_XY_RL ('cg2d_x', cg2d_x, 1,myIter, myThid) |
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#ifdef INCLUDE_CD_CODE |
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CALL WRITE_REC_XY_RL |
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& ( 'cg2d_xNM1', cg2d_xNM1, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'uVelD', uVelD, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'vVelD', vVelD, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'uNM1', uNM1, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'vNM1', vNM1, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'guCD', guCD, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'gvCD', gvCD, 1,myIter, myThid) |
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#endif |
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#ifdef ALLOW_NONHYDROSTATIC |
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IF ( nonHydrostatic ) THEN |
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CALL WRITE_REC_XYZ_RL( 'wVel',wVel, 1,myIter,myThid) |
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CALL WRITE_REC_XYZ_RL( 'gW',gW, 1,myIter,myThid) |
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CALL WRITE_REC_XYZ_RL( 'gWnm1',gWnm1, 1,myIter,myThid) |
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ENDIF |
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#endif |
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|
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#else |
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|
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prec = precFloat64 |
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lgf = globalFile |
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|
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C-- Write model fields |
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IF ( permCheckPoint ) THEN |
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WRITE(fn,'(A,I10.10)') 'pickup.',myIt |
321 |
ELSE |
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WRITE(fn,'(A,A)') 'pickup.',checkPtSuff(nCheckLev) |
323 |
ENDIF |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,uVel, 1,myIt,myThid) |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gU, 2,myIt,myThid) |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gUnm1, 3,myIt,myThid) |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,vVel, 4,myIt,myThid) |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gV, 5,myIt,myThid) |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gVnm1, 6,myIt,myThid) |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,theta, 7,myIt,myThid) |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gT, 8,myIt,myThid) |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gTnm1, 9,myIt,myThid) |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,salt, 10,myIt,myThid) |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gS, 11,myIt,myThid) |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gSnm1,12,myIt,myThid) |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL', 1,cg2d_x,12*Nr+1, |
337 |
& myIt,myThid) |
338 |
#ifdef INCLUDE_CD_CODE |
339 |
IF ( permCheckPoint ) THEN |
340 |
WRITE(fn,'(A,I10.10)') 'pickup_cd.',myIt |
341 |
ELSE |
342 |
WRITE(fn,'(A,A)') 'pickup_cd.',checkPtSuff(nCheckLev) |
343 |
ENDIF |
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CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,uVelD,1,myIt,myThid) |
345 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,vVelD,2,myIt,myThid) |
346 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,uNM1, 3,myIt,myThid) |
347 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,vNM1, 4,myIt,myThid) |
348 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,guCD, 5,myIt,myThid) |
349 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gvCD, 6,myIt,myThid) |
350 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL', 1,cg2d_xNM1,6*Nr+1, |
351 |
& myIt,myThid) |
352 |
#endif |
353 |
#ifdef ALLOW_NONHYDROSTATIC |
354 |
IF ( nonHydrostatic ) THEN |
355 |
IF ( permCheckPoint ) THEN |
356 |
WRITE(fn,'(A,I10.10)') 'pickup_nh.',myIt |
357 |
ELSE |
358 |
WRITE(fn,'(A,A)') 'pickup_nh.',checkPtSuff(nCheckLev) |
359 |
ENDIF |
360 |
WRITE(fn,'(A,I10.10)') 'pickup_nh.',myIt |
361 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,wVel, 1,myIt,myThid) |
362 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gW, 2,myIt,myThid) |
363 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gWnm1,3,myIt,myThid) |
364 |
ENDIF |
365 |
#endif |
366 |
IF ( .NOT. permCheckPoint ) THEN |
367 |
nCheckLev = MOD(nCheckLev, maxNoChkptLev)+1 |
368 |
ENDIF |
369 |
|
370 |
#endif |
371 |
|
372 |
C-- Reset binary precision |
373 |
writeBinaryPrec = oldPrec |
374 |
|
375 |
_END_MASTER( myThid ) |
376 |
_BARRIER |
377 |
|
378 |
ENDIF |
379 |
|
380 |
RETURN |
381 |
END |