/[MITgcm]/MITgcm/model/src/do_the_model_io.F
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Contents of /MITgcm/model/src/do_the_model_io.F

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Revision 1.2 - (show annotations) (download)
Fri Apr 24 02:05:40 1998 UTC (26 years ago) by cnh
Branch: MAIN
CVS Tags: redigm, checkpoint1, kloop1, kloop2
Changes since 1.1: +1 -1 lines
Further $Id to $Header conversions

1 C $Header: do_the_model_io.F,v 1.1.1.1 1998/04/22 19:15:30 cnh Exp $
2
3 #include "CPP_EEOPTIONS.h"
4
5 SUBROUTINE DO_THE_MODEL_IO(myIter, myThid)
6 C /==========================================================\
7 C | SUBROUTINE DO_THE_MODEL_IO |
8 C | o Controlling routine for IO in model main time-stepping |
9 C | loop. |
10 C |==========================================================|
11 C | Many systems do not have thread safe IO so it is easier |
12 C | to lump everything together and do dumping of fields |
13 C | and updating of forcing terms in a single place. |
14 C | The approach to IO used here is that writes are only |
15 C | performed by thread 1 and that a process only writes out |
16 C | its data ( since it doen't know about anyone elses data!)|
17 C | Reading on the other hand is assumed to be from a file |
18 C | containing all the data for all the processes. Only the |
19 C | portion of data of interest to this process is actually |
20 C | loaded. To work well this assumes the existence of some |
21 C | reliable tool to join datasets together at the end of a |
22 C | run. |
23 C | Notes |
24 C | ===== |
25 C | We allow thread 2-nThreads to continue whilst thread 1 |
26 C | does IO. The assumption is that the other threads won't |
27 C | do anything to update their interior regions before |
28 C | thread 1 has finished writing them out. |
29 C \==========================================================/
30
31 C == Global variables ===
32 #include "SIZE.h"
33 #include "EEPARAMS.h"
34 #include "PARAMS.h"
35 #include "DYNVARS.h"
36 #include "CG2D.h"
37
38 C == Routine arguments ==
39 C myThid - Thread number for this instance of the routine.
40 C myIter - Iteration number
41 INTEGER myThid
42 INTEGER myIter
43
44 C == Local variables ==
45
46 C-- Generaly only thread 1 does IO here. It can't start until everyone's
47 C-- fields are ready.
48 IF ( MOD(myIter,10) .NE. 0 ) RETURN
49 _BARRIER
50
51 C-- Write "text-plots" of certain fields
52 CALL PLOT_FIELD_XYZR8( uVel , 'uVel ' , Nz, myIter, myThid )
53 CALL PLOT_FIELD_XYZR8( vVel , 'vVel ' , Nz, myIter, myThid )
54 CALL PLOT_FIELD_XYZR8( theta, 'Theta ' , Nz, myIter, myThid )
55 CALL PLOT_FIELD_XYZR8( rho, 'rho ' , Nz, myIter, myThid )
56 CALL PLOT_FIELD_XYR8( cg2d_x, 'cg2d_x ' , myIter, myThid )
57 _BARRIER
58 C
59 RETURN
60 END
61

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