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Contents of /MITgcm/verification/hs94.1x64x5/adcode/CPP_EEOPTIONS.h

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Revision 1.1 - (show annotations) (download)
Thu Nov 8 20:47:17 2001 UTC (22 years, 7 months ago) by heimbach
Branch: MAIN
CVS Tags: checkpoint46n_post, checkpoint51k_post, checkpoint47j_post, checkpoint48d_pre, checkpoint44b_post, checkpoint51j_post, branch-exfmods-tag, checkpoint47e_post, checkpoint43a-release1mods, checkpoint44h_pre, checkpoint47i_post, checkpoint44e_post, checkpoint46l_post, checkpoint47f_post, checkpoint47c_post, checkpoint50e_post, checkpoint50c_post, checkpoint46i_post, checkpoint51n_pre, checkpoint47d_post, checkpoint44f_pre, checkpoint47a_post, checkpoint46f_post, checkpoint46d_pre, checkpoint48e_post, checkpoint46e_post, checkpoint48d_post, checkpoint50g_post, release1-branch_tutorials, checkpoint46c_post, checkpoint44g_post, branchpoint-genmake2, checkpoint44h_post, checkpoint50b_pre, checkpoint46e_pre, checkpoint48f_post, checkpoint45d_post, checkpoint46j_pre, checkpoint45b_post, checkpoint51i_post, checkpoint48c_post, chkpt44a_pre, release1-branch-end, release1_final_v1, checkpoint51e_post, checkpoint51b_post, checkpoint51l_pre, checkpoint46c_pre, checkpoint47d_pre, checkpoint47, checkpoint44, checkpoint45, checkpoint48, checkpoint49, checkpoint44f_post, checkpoint47b_post, checkpoint51l_post, checkpoint48i_post, checkpoint46l_pre, checkpoint51f_pre, checkpoint48h_post, checkpoint50d_pre, chkpt44d_post, checkpoint46h_pre, checkpoint51, checkpoint50, checkpoint47h_post, checkpoint50d_post, checkpoint46g_pre, checkpoint51b_pre, checkpoint46a_post, checkpoint47g_post, chkpt44a_post, checkpoint44b_pre, chkpt44c_post, checkpoint46m_post, checkpoint46j_post, checkpoint51h_pre, checkpoint46a_pre, checkpoint50c_pre, checkpoint45c_post, checkpoint46k_post, checkpoint44e_pre, checkpoint51g_post, checkpoint46b_pre, checkpoint46b_post, checkpoint51f_post, checkpoint46d_post, checkpoint48b_post, checkpoint50b_post, checkpoint46g_post, checkpoint51c_post, checkpoint45a_post, checkpoint50f_post, checkpoint50a_post, checkpoint50f_pre, checkpoint51d_post, checkpoint48c_pre, release1-branch_branchpoint, checkpoint46, checkpoint50h_post, checkpoint51a_post, checkpoint46h_post, checkpoint50e_pre, checkpoint50i_post, checkpoint51n_post, checkpoint48g_post, checkpoint51i_pre, chkpt44c_pre, checkpoint48a_post, checkpoint51m_post
Branch point for: branch-genmake2, release1, branch-exfmods-curt, tg2-branch, release1_final, checkpoint51n_branch, release1-branch
File MIME type: text/plain
Preparing verification exp. for adjoint of Held-Suarez
(in adcode/).

1 C $Header: /u/gcmpack/models/MITgcmUV/verification/carbon/code/CPP_EEOPTIONS.h,v 1.1 2001/07/13 13:19:00 heimbach Exp $
2 C
3 C /==========================================================\
5 C |==========================================================|
6 C | C preprocessor "execution environment" supporting |
7 C | flags. Use this file to set flags controlling the |
8 C | execution environment in which a model runs - as opposed |
9 C | to the dynamical problem the model solves. |
10 C | Note: Many options are implemented with both compile time|
11 C | and run-time switches. This allows options to be |
12 C | removed altogether, made optional at run-time or |
13 C | to be permanently enabled. This convention helps |
14 C | with the data-dependence analysis performed by the |
15 C | adjoint model compiler. This data dependency |
16 C | analysis can be upset by runtime switches that it |
17 C | is unable to recoginise as being fixed for the |
18 C | duration of an integration. |
19 C | A reasonable way to use these flags is to |
20 C | set all options as selectable at runtime but then |
21 C | once an experimental configuration has been |
22 C | identified, rebuild the code with the appropriate |
23 C | options set at compile time. |
24 C \==========================================================/
26 #ifndef _CPP_EEOPTIONS_H_
27 #define _CPP_EEOPTIONS_H_
29 C In general the following convention applies:
30 C ALLOW - indicates an feature will be included but it may
31 C CAN have a run-time flag to allow it to be switched
32 C on and off.
33 C If ALLOW or CAN directives are "undef'd" this generally
34 C means that the feature will not be available i.e. it
35 C will not be included in the compiled code and so no
36 C run-time option to use the feature will be available.
37 C
38 C ALWAYS - indicates the choice will be fixed at compile time
39 C so no run-time option will be present
41 C Flag used to indicate whether Fortran formatted write
42 C and read are threadsafe. On SGI the routines can be thread
43 C safe, on Sun it is not possible - if you are unsure then
44 C undef this option.
47 C-- Control MPI based parallel processing
48 #undef ALLOW_USE_MPI
49 #undef ALWAYS_USE_MPI
51 C-- Control use of communication that might overlap computation.
52 C Under MPI selects/deselects "non-blocking" sends and receives.
56 C-- Control use of communication that is atomic to computation.
57 C Under MPI selects/deselects "blocking" sends and receives.
61 C-- Control use of JAM routines for Artic network
62 C These invoke optimized versions of "exchange" and "sum" that
63 C utilize the programmable aspect of Artic cards.
64 #undef LETS_MAKE_JAM
67 C-- Control storage of floating point operands
68 C On many systems it improves performance only to use
69 C 8-byte precision for time stepped variables.
70 C Constant in time terms ( geometric factors etc.. )
71 C can use 4-byte precision, reducing memory utilisation and
72 C boosting performance because of a smaller working
73 C set size. However, on vector CRAY systems this degrades
74 C performance.
75 #define REAL4_IS_SLOW
77 C-- Control use of "double" precision constants.
78 C Use D0 where it means REAL*8 but not where it means REAL*16
79 #define D0 d0
81 C-- Control XY periodicity in processor to grid mappings
82 C Note: Model code does not need to know whether a domain is
83 C periodic because it has overlap regions for every box.
84 C Model assume that these values have been
85 C filled in some way.
91 #endif /* _CPP_EEOPTIONS_H_ */
93 #include "CPP_EEMACROS.h"

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