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C $Header: /u/gcmpack/models/MITgcmUV/model/src/do_the_model_io.F,v 1.7 1998/06/22 15:26:25 adcroft Exp $ |
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#include "CPP_EEOPTIONS.h" |
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SUBROUTINE DO_THE_MODEL_IO(myCurrentTime, myIter, myThid) |
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C /==========================================================\ |
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C | SUBROUTINE DO_THE_MODEL_IO | |
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C | o Controlling routine for IO in model main time-stepping | |
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C | loop. | |
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C |==========================================================| |
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C | Many systems do not have thread safe IO so it is easier | |
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C | to lump everything together and do dumping of fields | |
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C | and updating of forcing terms in a single place. | |
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C | The approach to IO used here is that writes are only | |
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C | performed by thread 1 and that a process only writes out | |
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C | its data ( since it doen't know about anyone elses data!)| |
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C | Reading on the other hand is assumed to be from a file | |
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C | containing all the data for all the processes. Only the | |
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C | portion of data of interest to this process is actually | |
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C | loaded. To work well this assumes the existence of some | |
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C | reliable tool to join datasets together at the end of a | |
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C | run. | |
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C | Notes | |
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C | ===== | |
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C | We allow thread 2-nThreads to continue whilst thread 1 | |
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C | does IO. The assumption is that the other threads won't | |
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C | do anything to update their interior regions before | |
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C | thread 1 has finished writing them out. | |
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C \==========================================================/ |
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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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LOGICAL DIFFERENT_MULTIPLE |
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EXTERNAL DIFFERENT_MULTIPLE |
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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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C myCurrentTime - Current time of simulation ( s ) |
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INTEGER myThid |
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INTEGER myIter |
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REAL myCurrentTime |
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|
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C == Local variables == |
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C suff - Hold suffix part of a filename |
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CHARACTER*(MAX_LEN_FNAM) suff |
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C-- Generaly only thread 1 does IO here. It can't start until everyone's |
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C-- fields are ready. |
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IF ( |
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& DIFFERENT_MULTIPLE(dumpFreq,myCurrentTime,myCurrentTime-deltaTClock) |
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& ) THEN |
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_BARRIER |
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C-- Write "text-plots" of certain fields |
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CALL PLOT_FIELD_XYZRL( uVel , 'Current uVel ' , Nz, myIter, myThid ) |
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CALL PLOT_FIELD_XYZRL( vVel , 'Current vVel ' , Nz, myIter, myThid ) |
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CALL PLOT_FIELD_XYZRL( theta, 'Current theta ' , Nz, myIter, myThid ) |
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CALL PLOT_FIELD_XYRL( cg2d_x, 'Current cg2d_x ' , myIter, myThid ) |
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ENDIF |
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C-- Write model state to binary file |
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CALL WRITE_STATE( .FALSE., myCurrentTime, myIter, myThid ) |
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C |
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RETURN |
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END |
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