/[MITgcm]/MITgcm/eesupp/inc/MAIN_PDIRECTIVES2.h
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Contents of /MITgcm/eesupp/inc/MAIN_PDIRECTIVES2.h

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Revision 1.7 - (show annotations) (download)
Mon Nov 7 18:16:08 2005 UTC (20 years ago) by cnh
Branch: MAIN
CVS Tags: checkpoint62v, checkpoint62u, checkpoint62t, checkpoint58b_post, checkpoint57y_post, checkpoint65z, checkpoint65x, checkpoint65y, checkpoint65r, checkpoint65s, checkpoint65p, checkpoint65q, checkpoint65v, checkpoint65w, checkpoint65t, checkpoint65u, checkpoint65j, checkpoint65k, checkpoint65h, checkpoint65i, checkpoint65n, checkpoint65l, checkpoint65m, checkpoint65b, checkpoint65c, checkpoint65a, checkpoint65f, checkpoint65g, checkpoint65d, checkpoint65e, checkpoint62c, checkpoint59, checkpoint58, checkpoint58f_post, checkpoint58d_post, checkpoint62s, checkpoint58a_post, checkpoint62r, checkpoint62q, checkpoint62p, checkpoint57z_post, checkpoint62a, checkpoint62g, checkpoint62f, checkpoint62e, checkpoint62d, checkpoint62k, checkpoint62j, checkpoint62i, checkpoint62h, checkpoint62o, checkpoint62n, checkpoint62m, checkpoint62l, checkpoint62w, checkpoint62z, checkpoint62y, checkpoint62x, checkpoint58y_post, checkpoint58t_post, checkpoint58m_post, checkpoint63g, checkpoint64, checkpoint65, checkpoint60, checkpoint61, checkpoint62, checkpoint63, checkpoint66g, checkpoint66f, checkpoint66e, checkpoint66d, checkpoint66c, checkpoint66b, checkpoint66a, checkpoint66o, checkpoint66n, checkpoint66m, checkpoint66l, checkpoint66k, checkpoint66j, checkpoint66i, checkpoint66h, checkpoint58w_post, checkpoint57y_pre, checkpoint58o_post, checkpoint58p_post, checkpoint58q_post, checkpoint58e_post, mitgcm_mapl_00, checkpoint63p, checkpoint63q, checkpoint63r, checkpoint63s, checkpoint63l, checkpoint63m, checkpoint63n, checkpoint63o, checkpoint63h, checkpoint63i, checkpoint63j, checkpoint63k, checkpoint63d, checkpoint63e, checkpoint63f, checkpoint63a, checkpoint63b, checkpoint63c, checkpoint58r_post, checkpoint58n_post, checkpoint65o, checkpoint59q, checkpoint59p, checkpoint59r, checkpoint59e, checkpoint59d, checkpoint59g, checkpoint59f, checkpoint59a, checkpoint59c, checkpoint59b, checkpoint59m, checkpoint59l, checkpoint59o, checkpoint59n, checkpoint59i, checkpoint59h, checkpoint59k, checkpoint58k_post, checkpoint62b, checkpoint58v_post, checkpoint64y, checkpoint64x, checkpoint58l_post, checkpoint64z, checkpoint64q, checkpoint64p, checkpoint64s, checkpoint64r, checkpoint64u, checkpoint64t, checkpoint64w, checkpoint64v, checkpoint64i, checkpoint64h, checkpoint64k, checkpoint64j, checkpoint64m, checkpoint64l, checkpoint64o, checkpoint64n, checkpoint64a, checkpoint64c, checkpoint64b, checkpoint64e, checkpoint64d, checkpoint64g, checkpoint64f, checkpoint61f, checkpoint58g_post, checkpoint58x_post, checkpoint61n, checkpoint59j, checkpoint58h_post, checkpoint58j_post, checkpoint61q, checkpoint61e, checkpoint58i_post, checkpoint57x_post, checkpoint58c_post, checkpoint58u_post, checkpoint58s_post, checkpoint61g, checkpoint61d, checkpoint61b, checkpoint61c, checkpoint61a, checkpoint61o, checkpoint61l, checkpoint61m, checkpoint61j, checkpoint61k, checkpoint61h, checkpoint61i, checkpoint61v, checkpoint61w, checkpoint61t, checkpoint61u, checkpoint61r, checkpoint61s, checkpoint61p, checkpoint61z, checkpoint61x, checkpoint61y, HEAD
Changes since 1.6: +4 -1 lines
File MIME type: text/plain 
Changes that enable OpenMP based threads.
Note - not all compute code is compatible with these.
1 C $Header: /u/u0/gcmpack/MITgcm/eesupp/inc/MAIN_PDIRECTIVES2.h,v 1.6 2004/03/27 03:51:50 edhill Exp $
2 C $Name: $
3 CBOP
4 C !ROUTINE: MAIN_PDIRECTIVES2.h
5 C !INTERFACE:
6 C include "MAIN_PDIRECTIVES2.h"
7 C !DESCRIPTION:
8 C *==========================================================*
9 C | MAIN\_PDIRECTIVES2.h
10 C *==========================================================*
11 C | Parallel directives to generate multithreaded code for
12 C | various different compilers. The master preprocessor
13 C | file CPP\_OPTIONS is used to select which of these
14 C | options is included in the code.
15 C | Note: Only some of the directives require end blocks.
16 C | For directives which do not require end blocks there
17 C | is no entry here.
18 C *==========================================================*
19 CEOP
20
21 #if defined USE_KAP_THREADING
22 C--
23 C-- Parallel directives for Kuck and Associates compiler.
24 C-- This is used to generate multi-threaded code on Digital
25 C-- systems. It can also be used under NT.
26 C-- Note: The KAP parallel proceesing tool has several bugs
27 C-- which means that if there are more threads (set via
28 C-- setenv PARALLEL) than iterations in the parallel
29 C-- loop the extra threads start on the section
30 C-- after the loop!
31 C-- To work around this we could place an extra dummy
32 C-- parallel section here. KAP places a barrier at the
33 C-- start of each parallel region which ensures that
34 C-- the extra threads wait (note this wait is in a busy loop).
35 C-- Without this feature the extra thread(s) will run on and may
36 C-- halt the program by calling STOP! Unfortunately that seems
37 C-- to cause a deadlock in a KAP library routine! Instead the
38 C-- current solution is to check for a thread reaching the
39 C-- shutdown part of main.F before other threads have
40 C-- completed computation ( see eedie.F ).
41 C
42 C*KAP* END PARALLEL REGION
43 C C*KAP* PARALLEL REGION
44 C CALL FOOL_THE_COMPILER
45 C C*KAP* END PARALLEL REGION
46 C
47 #endif
48 C
49
50 #ifdef USE_OMP_THREADING
51 C$OMP END PARALLEL
52 #endif
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