| 24 |
the steps below: |
the steps below: |
| 25 |
|
|
| 26 |
1. Extract MITgcmUV from the downloadable archive |
1. Extract MITgcmUV from the downloadable archive |
| 27 |
tar -xvf checkpoint12.tar |
tar -xvf cNN.tar |
| 28 |
|
|
| 29 |
2. Create platform specific make file |
2. Create platform specific make file |
| 30 |
For example on a Digital UNIX machine the script "genmake.dec" can |
For example on a Digital UNIX machine the script "genmake.dec" can |
| 32 |
|
|
| 33 |
cd bin |
cd bin |
| 34 |
../tools/genmake |
../tools/genmake |
| 35 |
cp Makefile.alpha Makefile |
cp Makefile.alpha Makefile ( On Alpha machine) |
| 36 |
|
|
| 37 |
3. Now create header file dependency entries |
3. Now create header file dependency entries |
| 38 |
make depend |
make depend |
| 45 |
|
|
| 46 |
6. Run baseline test case |
6. Run baseline test case |
| 47 |
setenv PARALLEL 1 |
setenv PARALLEL 1 |
| 48 |
dmpirun -np 2 ../exe/mitgcmuv |
dmpirun -np 2 ../exe/mitgcmuv ( Under Digital UNIX ) |
| 49 |
|
mpirun.p4shmem ../exe/mitgcmuv -np 2 ( Under Solaris + mpich) |
| 50 |
|
|
| 51 |
|
|
| 52 |
This runs a 4 degree global ocean climatological simulation. |
This runs a 4 degree global ocean climatological simulation. |
| 53 |
By default this code is set to use two porcessors splitting |
By default this code is set to use two processors splitting |
| 54 |
the model domain along the equator. Textual output is written |
the model domain along the equator. Textual output is written |
| 55 |
to files STDOUT.* and STDERR.* with one file for each process. |
to files STDOUT.* and STDERR.* with one file for each process. |
| 56 |
Model fileds are written to files suffixed .data and .meta |
Model fileds are written to files suffixed .data and .meta |
| 57 |
These files are written on a per process basis. The .meta |
These files are written on a per process basis. The .meta |
| 58 |
file indicates the location and shape of the subdomain in |
file indicates the location and shape of the subdomain in |
| 59 |
each .data file. |
each .data file. |
| 60 |
|
|
| 61 |
|
This 4 degree global ocean climatological simulation is the baseline |
| 62 |
|
configuration for the MITgcmUV code. The change files that |
| 63 |
|
convert the model to a different configuration in the |
| 64 |
|
verification directory all assume that the model is configured for |
| 65 |
|
the baseline case and change the model code accordingly. |
| 66 |
|
|
| 67 |
o Running |
o Running |
| 68 |
|
|
| 90 |
|
|
| 91 |
- Parallel execution. Hybrid |
- Parallel execution. Hybrid |
| 92 |
|
|
| 93 |
|
o Cutomising the code |
| 94 |
|
|
| 95 |
|
Model structure |
| 96 |
|
=============== |
| 97 |
|
The "numerical" model is contained within a execution |
| 98 |
|
environment support wrapper. This wrapper is designed |
| 99 |
|
to provide a general framework for grid-point models. |
| 100 |
|
MITgcmUV is a specific numerical model that uses the |
| 101 |
|
framework. |
| 102 |
|
Under this structure the model is split into |
| 103 |
|
execution environment support code and conventional |
| 104 |
|
numerical model code. The execution environment |
| 105 |
|
support code is held under the "eesupp" directory. |
| 106 |
|
The grid point model code is held under the |
| 107 |
|
"model" directory. |
| 108 |
|
Code execution actually starts in the eesupp |
| 109 |
|
routines and not in the model routines. For this |
| 110 |
|
reason the top level main.F is in the eesupp/src |
| 111 |
|
directory. End-users should not need to worry about |
| 112 |
|
this level. The top-level routine for the numerical |
| 113 |
|
part of the code is in model/src/the_model_main.F. |
| 114 |
|
|
| 115 |
|
|
| 116 |
o References |
o References |
| 117 |
Web sites - HP |
Web sites - HP |
| 118 |
for doc Digital |
for doc Digital |
Parent Directory
| 
Revision Log
| 
Revision Graph
| 
Patch