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C $Header: /u/gcmpack/MITgcm/pkg/longstep/longstep_check_iters.F,v 1.2 2009/06/28 04:58:41 jmc Exp $ |
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C $Name: $ |
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|
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#include "LONGSTEP_OPTIONS.h" |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP |
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C !ROUTINE: LONGSTEP_CHECK_ITERS |
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|
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C !INTERFACE: |
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SUBROUTINE LONGSTEP_CHECK_ITERS( myThid ) |
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|
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C !DESCRIPTION: |
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C Check that starttime and endtime are multiples of long time step. |
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C Fix endtime if not, abort if starttime is not. |
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|
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C !USES: |
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IMPLICIT NONE |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "LONGSTEP_PARAMS.h" |
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#include "PARAMS.h" |
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|
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C !INPUT PARAMETERS: |
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INTEGER myThid |
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CEOP |
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|
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#ifdef ALLOW_LONGSTEP |
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|
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C !LOCAL VARIABLES: |
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C extraIter :: extra iterations added to finish on a longstep |
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C msgBuf :: message buffer |
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INTEGER extraIter |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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|
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IF (MOD(nIter0, LS_nIter) .NE. 0) THEN |
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C Restarting from a pickup in the middle of a longstep will lead |
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C to invalid vel,... averages, so we abort |
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WRITE(msgBuf,'(2A,2I10)') |
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& ' LONGSTEP_CHECK_ITERS: nIter0 is not a multiple of', |
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& ' LS_niter', nIter0, LS_niter |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R LONGSTEP_CHECK_ITERS' |
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ENDIF |
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|
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IF (MOD(nEndIter, LS_nIter) .NE. 0) THEN |
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C Add as many time steps as necessary to bring endtime to the end |
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C of a long time step, so that the pickup will be valid. |
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WRITE(msgBuf,'(3A)') '**WARNING** ', |
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& ' LONGSTEP_CHECK_ITERS: nEndIter is not a multiple of', |
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& ' LS_niter:' |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid) |
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WRITE(msgBuf,'(2A,2I10)') '**WARNING** ', |
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& ' LONGSTEP_CHECK_ITERS: ', nEndIter, LS_niter |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid) |
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extraIter = LS_nIter - MOD(nEndIter, LS_nIter) |
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nEndIter = nEndIter + extraIter |
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nTimeSteps = nEndIter - nIter0 |
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endTime = baseTime + deltaTClock*float(nEndIter) |
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WRITE(msgBuf,'(2A)') '**WARNING** ', |
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& ' LONGSTEP_CHECK_ITERS: adjusting to' |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid) |
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WRITE(msgBuf,'(2A,I10)') '**WARNING** ', |
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& ' LONGSTEP_CHECK_ITERS: nEndIter =', nEndIter |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid) |
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WRITE(msgBuf,'(2A,I10)') '**WARNING** ', |
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& ' LONGSTEP_CHECK_ITERS: nTimeSteps =', nTimeSteps |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid) |
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WRITE(msgBuf,'(2A,1PE23.15)') '**WARNING** ', |
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& ' LONGSTEP_CHECK_ITERS: endTime =', endTime |
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CALL PRINT_MESSAGE( msgBuf, errorMessageUnit, |
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& SQUEEZE_RIGHT , myThid) |
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C log to standard output too |
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WRITE(msgBuf,'(2A)') 'S/R LONGSTEP_CHECK_ITERS: ', |
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& ' adjusting endTime:' |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT , 1) |
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CALL WRITE_0D_RL( endTime, INDEX_NONE,'endTime =', |
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&' /* Integration ending time ( s ). */') |
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CALL WRITE_0D_I( nTimeSteps, INDEX_NONE,'nTimeSteps =', |
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&' /* Number of timesteps */') |
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ENDIF |
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|
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#endif /* ALLOW_LONGSTEP */ |
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|
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RETURN |
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END |
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