/[MITgcm]/MITgcm/eesupp/src/eedie.F
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Annotation of /MITgcm/eesupp/src/eedie.F

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Revision 1.1 - (hide annotations) (download)
Wed Apr 22 19:15:30 1998 UTC (26 years ago) by cnh
Branch: MAIN
Branch point for: cnh
Initial revision

1 cnh 1.1 C $Id$
2    
3     #include "CPP_EEOPTIONS.h"
4    
5     CStartOfInterface
6     SUBROUTINE EEDIE
7     C /==========================================================\
8     C | SUBROUTINE EEDIE |
9     C | o Close execution "environment", particularly perform |
10     C | steps to terminate parallel processing. |
11     C |==========================================================|
12     C | Note: This routine can also be compiled with CPP |
13     C | directives set so that no multi-processing is initialised|
14     C | This is OK and should work fine. |
15     C \==========================================================/
16    
17     C == Global variables ==
18     #include "SIZE.h"
19     #include "EEPARAMS.h"
20     #include "EESUPPORT.h"
21     CEndOfInterface
22    
23     C == Local variables ==
24     C msgBuf - I/O Buffer
25     C nThreadsDone - Used to count number of completed threads.
26     C I - Loop counter.
27     CHARACTER*(MAX_LEN_MBUF) msgBuf
28     INTEGER nThreadsDone
29     INTEGER I
30     #ifdef ALLOW_USE_MPI
31     C mpiRC - Error code reporting variable used
32     C with MPI.
33     INTEGER mpiRC
34     #endif /* ALLOW_USE_MPI */
35    
36     C-- Check that all the threads have ended
37     C No thread should reach this loop before all threads have set
38     C threadIsComplete to TRUE. If they do then either there is a bug
39     C in the code or the behaviour of the parallel compiler directives
40     C are not right for this code. In the latter case different directives
41     C may be available or the compiler itself may have a bug or you may
42     C need a different parallel compiler for main.F
43     nThreadsDone = 0
44     DO I = 1, nThreads
45     IF ( threadIsComplete(I) ) nThreadsDone = nThreadsDone+1
46     ENDDO
47     IF ( nThreadsDone .LT. nThreads ) THEN
48     WRITE(msgBuf,'(A,I,A,I,A)')
49     & 'S/R EEDIE: Only ',nThreadsDone,
50     & ' threads have completed, ',nThreads,' are expected for this configuration!'
51     WRITE(0,*) msgBuf
52     WRITE(0,*) 'Possibly you have different values of setenv PARALLEL and nThreads?'
53     eeEndError = .TRUE.
54     fatalError = .TRUE.
55     ENDIF
56    
57     #ifdef ALLOW_USE_MPI
58     C--
59     C-- MPI style multiple-process termination
60     C-- ======================================
61     #ifndef ALWAYS_USE_MPI
62     IF ( usingMPI ) THEN
63     #endif
64     CALL MPI_FINALIZE ( mpiRC )
65     IF ( mpiRC .NE. MPI_SUCCESS ) THEN
66     eeEndError = .TRUE.
67     fatalError = .TRUE.
68     WRITE(msgBuf,'(A,I)')
69     & 'S/R FIN_PROCS: MPI_FINALIZE return code',
70     & mpiRC
71     CALL PRINT_ERROR( msgBuf, 1 )
72     ENDIF
73     C
74     #ifndef ALWAYS_USE_MPI
75     ENDIF
76     #endif
77     #endif /* ALLOW_USE_MPI */
78    
79    
80     RETURN
81     END

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