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C $Header: /u/gcmpack/MITgcm/model/src/checkpoint.F,v 1.32 2003/12/15 00:53:09 jmc Exp $ |
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C $Name: $ |
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|
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#include "PACKAGES_CONFIG.h" |
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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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CBOP |
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C !ROUTINE: READ_CHECKPOINT |
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C !INTERFACE: |
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SUBROUTINE READ_CHECKPOINT ( myIter, myThid ) |
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C !DESCRIPTION: \bv |
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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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C \ev |
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C !USES: |
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IMPLICIT NONE |
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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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#ifdef ALLOW_NONHYDROSTATIC |
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#include "GW.h" |
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#include "SOLVE_FOR_PRESSURE3D.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 !INPUT/OUTPUT PARAMETERS: |
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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 myIter - Iteration number |
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INTEGER myThid |
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INTEGER myIter |
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|
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C oldPrec :: Temp. for hold I/O precision information |
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C prec |
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C fn :: Temp. for building file name. |
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INTEGER oldPrec |
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CHARACTER*(MAX_LEN_FNAM) fn |
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CHARACTER*(10) suff |
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INTEGER prec |
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CEOP |
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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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#ifdef OLD_STYLE_WITH_MANY_FILES |
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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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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 ('etaN', etaN, 1,myIter, myThid) |
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|
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#ifdef ALLOW_NONHYDROSTATIC |
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IF ( nonHydrostatic ) THEN |
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CALL READ_REC_XYZ_RL('phi_nh',phi_nh,1,myIter,myThid) |
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CALL READ_REC_XYZ_RL( 'gW',gW, 1,myIter,myThid) |
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c CALL READ_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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C Reset default IO precision |
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readBinaryPrec = oldPrec |
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|
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#else /* OLD_STYLE_WITH_MANY_FILES */ |
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|
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prec = precFloat64 |
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|
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C-- Suffix for pickup files |
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IF (pickupSuff.EQ.' ') THEN |
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WRITE(suff,'(I10.10)') myIter |
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ELSE |
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WRITE(suff,'(A10)') pickupSuff |
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ENDIF |
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|
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C-- Read model fields |
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WRITE(fn,'(A,A10)') 'pickup.',suff |
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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,etaN,12*Nr+1,myThid) |
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#ifdef NONLIN_FRSURF |
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IF ( nonlinFreeSurf.GE.0) |
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& CALL MDSREADFIELD(fn,prec,'RL',1,etaH,12*Nr+2,myThid) |
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#endif |
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|
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IF ( useDynP_inEos_Zc ) THEN |
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WRITE(fn,'(A,A10)') 'pickup_ph.',suff |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,totPhiHyd,1,myThid) |
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ENDIF |
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|
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#ifdef ALLOW_NONHYDROSTATIC |
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IF ( nonHydrostatic ) THEN |
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WRITE(fn,'(A,A10)') 'pickup_nh.',suff |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,phi_nh,1,myThid) |
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CALL MDSREADFIELD(fn,prec,'RL',Nr,gW, 2,myThid) |
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c 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 /* OLD_STYLE_WITH_MANY_FILES */ |
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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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CALL EXCH_UV_XYZ_RL(uVel,vVel,.TRUE.,myThid) |
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CALL EXCH_UV_XYZ_RL(gU,gV,.TRUE.,myThid) |
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CALL EXCH_UV_XYZ_RL(gUnm1,gVnm1,.TRUE.,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 (etaN, myThid ) |
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_EXCH_XY_R8( etaH, myThid ) |
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|
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IF ( useDynP_inEos_Zc ) |
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& _EXCH_XYZ_RL( totPhiHyd, myThid ) |
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|
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#ifdef ALLOW_NONHYDROSTATIC |
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IF ( nonHydrostatic ) THEN |
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_EXCH_XYZ_R8(phi_nh, myThid ) |
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_EXCH_XYZ_R8(gW , myThid ) |
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c _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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CBOP |
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C !ROUTINE: WRITE_CHECKPOINT |
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C !INTERFACE: |
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SUBROUTINE WRITE_CHECKPOINT ( modelEnd, myTime, |
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& myIter, myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE WRITE_CHECKPOINT |
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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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C \ev |
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|
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C !USES: |
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IMPLICIT NONE |
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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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#ifdef ALLOW_NONHYDROSTATIC |
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#include "GW.h" |
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#include "SOLVE_FOR_PRESSURE3D.h" |
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#endif |
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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 !INPUT/OUTPUT PARAMETERS: |
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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 myIter :: Iteration number |
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C myTime :: Current time of simulation ( s ) |
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LOGICAL modelEnd |
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INTEGER myThid |
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INTEGER myIter |
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_RL myTime |
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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 == 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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C tempCheckPoint :: Flag indicating if it is time to write a non-permanent |
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C checkpoint (that will be permanent if permCheckPoint=T) |
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C oldPrc :: Temp. for holding I/O precision |
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C fn :: Temp. for building file name string. |
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C lgf :: Flag to indicate whether to use global file mode. |
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LOGICAL permCheckPoint, tempCheckPoint |
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INTEGER oldPrec |
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CHARACTER*(MAX_LEN_FNAM) fn |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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INTEGER prec |
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LOGICAL lgf |
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CEOP |
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|
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permCheckPoint = .FALSE. |
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tempCheckPoint = .FALSE. |
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permCheckPoint= |
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& DIFFERENT_MULTIPLE(pChkptFreq,myTime,myTime-deltaTClock) |
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tempCheckPoint= |
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& DIFFERENT_MULTIPLE( ChkptFreq,myTime,myTime-deltaTClock) |
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|
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IF ( |
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& ( .NOT.modelEnd .AND. (permCheckPoint.OR.tempCheckPoint) ) |
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& .OR. |
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& ( modelEnd .AND. .NOT.(permCheckPoint.OR.tempCheckPoint) ) |
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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. |
| 278 |
_BARRIER |
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_BEGIN_MASTER( myThid ) |
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|
| 281 |
#ifdef OLD_STYLE_WITH_MANY_FILES |
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C Force 64-bit IO |
| 283 |
oldPrec = writeBinaryPrec |
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writeBinaryPrec = precFloat64 |
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|
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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) |
| 294 |
CALL WRITE_REC_XYZ_RL( 'theta', theta, 1,myIter, myThid) |
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CALL WRITE_REC_XYZ_RL( 'gT', gT, 1,myIter, myThid) |
| 296 |
CALL WRITE_REC_XYZ_RL( 'gTNm1', gTNm1, 1,myIter, myThid) |
| 297 |
CALL WRITE_REC_XYZ_RL( 'salt', salt, 1,myIter, myThid) |
| 298 |
CALL WRITE_REC_XYZ_RL( 'gS', gS, 1,myIter, myThid) |
| 299 |
CALL WRITE_REC_XYZ_RL( 'gSNm1', gSNm1, 1,myIter, myThid) |
| 300 |
CALL WRITE_REC_XY_RL ('etaN', etaN, 1,myIter, myThid) |
| 301 |
|
| 302 |
#ifdef ALLOW_NONHYDROSTATIC |
| 303 |
IF ( nonHydrostatic ) THEN |
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CALL WRITE_REC_XYZ_RL('phi_nh',phi_nh,1,myIter,myThid) |
| 305 |
CALL WRITE_REC_XYZ_RL( 'gW',gW, 1,myIter,myThid) |
| 306 |
c CALL WRITE_REC_XYZ_RL( 'gWnm1',gWnm1, 1,myIter,myThid) |
| 307 |
ENDIF |
| 308 |
#endif |
| 309 |
|
| 310 |
C-- Reset binary precision |
| 311 |
writeBinaryPrec = oldPrec |
| 312 |
|
| 313 |
#else /* OLD_STYLE_WITH_MANY_FILES */ |
| 314 |
|
| 315 |
prec = precFloat64 |
| 316 |
lgf = globalFile |
| 317 |
|
| 318 |
C-- Write model fields |
| 319 |
IF ( permCheckPoint ) THEN |
| 320 |
WRITE(fn,'(A,I10.10)') 'pickup.',myIter |
| 321 |
ELSE |
| 322 |
WRITE(fn,'(A,A)') 'pickup.',checkPtSuff(nCheckLev) |
| 323 |
ENDIF |
| 324 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,uVel, 1,myIter,myThid) |
| 325 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gU, 2,myIter,myThid) |
| 326 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gUnm1, 3,myIter,myThid) |
| 327 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,vVel, 4,myIter,myThid) |
| 328 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gV, 5,myIter,myThid) |
| 329 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gVnm1, 6,myIter,myThid) |
| 330 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,theta, 7,myIter,myThid) |
| 331 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gT, 8,myIter,myThid) |
| 332 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gTnm1, 9,myIter,myThid) |
| 333 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,salt, 10,myIter,myThid) |
| 334 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gS, 11,myIter,myThid) |
| 335 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gSnm1,12,myIter,myThid) |
| 336 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL', 1,etaN,12*Nr+1, |
| 337 |
& myIter,myThid) |
| 338 |
#ifdef NONLIN_FRSURF |
| 339 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL', 1,etaH,12*Nr+2, |
| 340 |
& myIter,myThid) |
| 341 |
#endif |
| 342 |
|
| 343 |
IF ( useDynP_inEos_Zc ) THEN |
| 344 |
IF ( permCheckPoint ) THEN |
| 345 |
WRITE(fn,'(A,I10.10)') 'pickup_ph.',myIter |
| 346 |
ELSE |
| 347 |
WRITE(fn,'(A,A)') 'pickup_ph.',checkPtSuff(nCheckLev) |
| 348 |
ENDIF |
| 349 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,totPhiHyd, |
| 350 |
& 1,myIter,myThid) |
| 351 |
ENDIF |
| 352 |
|
| 353 |
#ifdef ALLOW_NONHYDROSTATIC |
| 354 |
IF ( nonHydrostatic ) THEN |
| 355 |
IF ( permCheckPoint ) THEN |
| 356 |
WRITE(fn,'(A,I10.10)') 'pickup_nh.',myIter |
| 357 |
ELSE |
| 358 |
WRITE(fn,'(A,A)') 'pickup_nh.',checkPtSuff(nCheckLev) |
| 359 |
ENDIF |
| 360 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,phi_nh,1,myIter,myThid) |
| 361 |
CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gW, 2,myIter,myThid) |
| 362 |
c CALL MDSWRITEFIELD(fn,prec,lgf,'RL',Nr,gWnm1,3,myIter,myThid) |
| 363 |
ENDIF |
| 364 |
#endif |
| 365 |
|
| 366 |
#endif /* OLD_STYLE_WITH_MANY_FILES */ |
| 367 |
|
| 368 |
C-- Write suffix for stdout information |
| 369 |
IF ( permCheckPoint ) THEN |
| 370 |
WRITE(fn,'(I10.10)') myIter |
| 371 |
ELSE |
| 372 |
WRITE(fn,'(A)') checkPtSuff(nCheckLev) |
| 373 |
ENDIF |
| 374 |
|
| 375 |
IF ( .NOT. permCheckPoint ) THEN |
| 376 |
nCheckLev = MOD(nCheckLev, maxNoChkptLev)+1 |
| 377 |
ENDIF |
| 378 |
|
| 379 |
_END_MASTER(myThid) |
| 380 |
_BARRIER |
| 381 |
|
| 382 |
C-- Write information to stdout so there is a record that the |
| 383 |
C checkpoint was completed |
| 384 |
_BEGIN_MASTER(myThid) |
| 385 |
WRITE(msgBuf,'(A11,I10,1X,A10)') |
| 386 |
& "%CHECKPOINT ",myIter,fn |
| 387 |
CALL PRINT_MESSAGE(msgBuf,standardMessageUnit,SQUEEZE_RIGHT,1) |
| 388 |
_END_MASTER(myThid) |
| 389 |
|
| 390 |
ENDIF |
| 391 |
|
| 392 |
RETURN |
| 393 |
END |
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