/[MITgcm]/MITgcm/eesupp/src/exch_cycle_ebl.F
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Contents of /MITgcm/eesupp/src/exch_cycle_ebl.F

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Revision 1.5 - (show annotations) (download)
Sat Mar 27 03:51:51 2004 UTC (20 years, 3 months ago) by edhill
Branch: MAIN
CVS Tags: checkpoint62v, checkpoint57m_post, checkpoint62u, checkpoint57g_pre, checkpoint62t, checkpoint57s_post, checkpoint58b_post, checkpoint57b_post, checkpoint57g_post, checkpoint56b_post, checkpoint57y_post, checkpoint65z, checkpoint65x, checkpoint65y, checkpoint54d_post, checkpoint65r, checkpoint65s, checkpoint65p, checkpoint65q, checkpoint65v, checkpoint65w, checkpoint65t, checkpoint65u, checkpoint65j, checkpoint65k, checkpoint65h, checkpoint65i, checkpoint65n, checkpoint54e_post, checkpoint65l, checkpoint65m, checkpoint65b, checkpoint65c, checkpoint65a, checkpoint65f, checkpoint65g, checkpoint65d, checkpoint65e, checkpoint62c, checkpoint57r_post, checkpoint57d_post, checkpoint57i_post, checkpoint59, checkpoint58, checkpoint55, checkpoint54, checkpoint57, checkpoint56, checkpoint53, checkpoint58f_post, checkpoint57n_post, checkpoint58d_post, checkpoint62s, checkpoint58a_post, checkpoint62r, checkpoint62q, checkpoint62p, checkpoint57z_post, checkpoint54f_post, checkpoint62a, checkpoint62g, checkpoint62f, checkpoint62e, checkpoint62d, checkpoint62k, checkpoint62j, checkpoint62i, checkpoint62h, checkpoint62o, checkpoint62n, checkpoint62m, checkpoint62l, checkpoint62w, checkpoint62z, checkpoint62y, checkpoint62x, checkpoint58y_post, checkpoint58t_post, checkpoint55i_post, checkpoint58m_post, checkpoint57l_post, checkpoint57t_post, checkpoint55c_post, checkpoint63g, checkpoint57v_post, checkpoint57f_post, checkpoint53d_post, checkpoint64, checkpoint65, checkpoint60, checkpoint61, checkpoint62, checkpoint63, checkpoint57a_post, checkpoint57h_pre, checkpoint66g, checkpoint66f, checkpoint66e, checkpoint66d, checkpoint66c, checkpoint66b, checkpoint66a, checkpoint66o, checkpoint66n, checkpoint66m, checkpoint66l, checkpoint66k, checkpoint66j, checkpoint66i, checkpoint66h, checkpoint54b_post, checkpoint58w_post, checkpoint57h_post, checkpoint52m_post, checkpoint57y_pre, checkpoint55g_post, checkpoint58o_post, checkpoint57c_post, checkpoint58p_post, checkpoint58q_post, checkpoint55d_post, checkpoint58e_post, mitgcm_mapl_00, checkpoint54a_pre, checkpoint63p, checkpoint63q, checkpoint63r, checkpoint63s, checkpoint63l, checkpoint63m, checkpoint63n, checkpoint63o, checkpoint63h, checkpoint63i, checkpoint63j, checkpoint63k, checkpoint63d, checkpoint63e, checkpoint63f, checkpoint53c_post, checkpoint63a, checkpoint63b, checkpoint63c, checkpoint55d_pre, checkpoint57c_pre, checkpoint58r_post, checkpoint55j_post, checkpoint54a_post, checkpoint55h_post, checkpoint58n_post, checkpoint57e_post, checkpoint55b_post, checkpoint53a_post, checkpoint65o, checkpoint59q, checkpoint59p, checkpoint59r, checkpoint59e, checkpoint59d, checkpoint59g, checkpoint59f, checkpoint59a, checkpoint55f_post, checkpoint59c, checkpoint59b, checkpoint59m, checkpoint59l, checkpoint59o, checkpoint59n, checkpoint59i, checkpoint59h, checkpoint59k, checkpoint53g_post, checkpoint57p_post, checkpint57u_post, checkpoint57q_post, eckpoint57e_pre, checkpoint58k_post, checkpoint62b, checkpoint58v_post, checkpoint56a_post, checkpoint64y, checkpoint64x, checkpoint58l_post, checkpoint64z, checkpoint53f_post, checkpoint64q, checkpoint64p, checkpoint64s, checkpoint64r, checkpoint64u, checkpoint64t, checkpoint64w, checkpoint64v, checkpoint64i, checkpoint64h, checkpoint64k, checkpoint64j, checkpoint64m, checkpoint64l, checkpoint64o, checkpoint64n, checkpoint64a, checkpoint64c, checkpoint64b, checkpoint64e, checkpoint64d, checkpoint64g, checkpoint64f, checkpoint57h_done, checkpoint57j_post, checkpoint57f_pre, checkpoint61f, checkpoint58g_post, checkpoint58x_post, checkpoint61n, checkpoint52n_post, checkpoint53b_pre, checkpoint59j, checkpoint58h_post, checkpoint56c_post, checkpoint58j_post, checkpoint57a_pre, checkpoint55a_post, checkpoint57o_post, checkpoint61q, checkpoint57k_post, checkpoint53b_post, checkpoint57w_post, checkpoint61e, checkpoint58i_post, checkpoint57x_post, checkpoint58c_post, checkpoint58u_post, checkpoint53d_pre, checkpoint58s_post, checkpoint55e_post, checkpoint61g, checkpoint61d, checkpoint54c_post, checkpoint61b, checkpoint61c, checkpoint61a, checkpoint61o, checkpoint61l, checkpoint61m, checkpoint61j, checkpoint61k, checkpoint61h, checkpoint61i, checkpoint61v, checkpoint61w, checkpoint61t, checkpoint61u, checkpoint61r, checkpoint61s, checkpoint61p, checkpoint61z, checkpoint61x, checkpoint61y, HEAD
Changes since 1.4: +2 -2 lines
 o cleanup comments (NO CODE CHANGES) in eesupp for protex
 o the "api reference" framework now builds documentation for:
     eesupp, pkg/generic_advdiff, and pkg/gmredi
 o remove mnc from the default gfd in pkg_groups pending
     further testing on systems where NetCDF is not installed

1 C $Header: /u/gcmpack/MITgcm/eesupp/src/exch_cycle_ebl.F,v 1.4 2003/11/13 14:40:14 heimbach Exp $
2 C $Name: $
3
4 #include "CPP_EEOPTIONS.h"
5
6 CBOP
7 C !ROUTINE: EXCH_CYCLE_EBL
8
9 C !INTERFACE:
10 SUBROUTINE EXCH_CYCLE_EBL( myThid )
11 IMPLICIT NONE
12
13 C !DESCRIPTION:
14 C *==========================================================*
15 C | SUBROUTINE EXCH\_CYCLE\_EBL
16 C | o Cycle exchange buffer level.
17 C *==========================================================*
18 C | Step the "exchange buffer level" to next value.
19 C | The buffer level is used to prevent consecutive messages
20 C | overwriting one another. Because we know that every tile
21 C | will participate in an exchange we can be sure that every
22 C | tile will cycle through the buffers with the same
23 C | sequence. Also we know that a tile cannot start a new
24 C | exchange before it has completed its end of the previous
25 C | exchange. Thus by cycling through three buffer levels we
26 C | can be sure that the buffer we write to will be free.
27 C | That is by the time we are participating in the third
28 C | exchange transaction we know that both ends of the first
29 C | transaction must have completed.
30 C | Note --
31 C | 1. We allow more than three levels below although this
32 C | is not necessary.
33 C *==========================================================*
34
35 C !USES:
36 C == Global data ==
37 #include "SIZE.h"
38 #include "EEPARAMS.h"
39 #include "EESUPPORT.h"
40 #include "EXCH.h"
41
42 C !INPUT PARAMETERS:
43 C == Routine arguments ==
44 C myThid :: Thread number of this instance of the routine
45 INTEGER myThid
46
47 C !LOCAL VARIABLES:
48 C == Local variables ==
49 C bi, bj :: Loop counters
50 INTEGER bi, bj
51 CEOP
52
53 DO bj=myByLo(myThid),myByHi(myThid)
54 DO bi=myBxLo(myThid),myBxHi(myThid)
55 C-- Use next level exchange buffer in cycle.
56 exchangeBufLevel(1,bi,bj) = exchangeBufLevel(1,bi,bj)+1
57 IF ( exchangeBufLevel(1,bi,bj) .GT. NUMBER_OF_BUFFER_LEVELS )
58 & exchangeBufLevel(1,bi,bj) = 1
59 ENDDO
60 ENDDO
61
62 RETURN
63 END

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