Annotation of /MITgcm_contrib/PRM/multi_comp_setup/doc/Notes

Description

 cg is a 20 x 20 mesh
 fg is a 20 x 1  mesh at every cg location
 Need to generate x400 fg components from same source root, but 
 independently located in space and with private, persistent heap
 storage.


Using fixed size components from same source base but with differing
sizes

Packaging as a N single instance components
  inputs 

    location of parent code tree
    location of child code tree
    index space layout of child components on parent mesh

  creates

    1 - change global COMMON names so that they are per "static" component.
    2 - change routine and function names in each static component library
    3 - change all calls to routine names in each static library

  --or--

    1 - link different many different executables and have them run
        as different processes under an MPMD MPI mode
    this requires careful organiztion to ensure executables are consistent 
    because there will be more than one main(). in fact there could be several 
    hundred main()'s.


Tests

 ESMF building to give multiple executables with  a common main.
1	cnh	1.1	Description
2
3			cg is a 20 x 20 mesh
4			fg is a 20 x 1 mesh at every cg location
5			Need to generate x400 fg components from same source root, but
6			independently located in space and with private, persistent heap
7			storage.
8
9
10			Using fixed size components from same source base but with differing
11			sizes
12
13			Packaging as a N single instance components
14			inputs
15
16			location of parent code tree
17			location of child code tree
18			index space layout of child components on parent mesh
19
20			creates
21
22			1 - change global COMMON names so that they are per "static" component.
23			2 - change routine and function names in each static component library
24			3 - change all calls to routine names in each static library
25
26			--or--
27
28			1 - link different many different executables and have them run
29			as different processes under an MPMD MPI mode
30			this requires careful organiztion to ensure executables are consistent
31			because there will be more than one main(). in fact there could be several
32			hundred main()'s.
33
34
35
36			Tests
37
38			ESMF building to give multiple executables with a common main.