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# $Header: /u/gcmpack/MITgcm/tools/example_scripts/README,v 1.1 2003/09/18 17:03:02 edhill Exp $ |
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===== What is this? ===== |
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This directory is a collection of scripts and "crontab" entries mostly |
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intended for automated testing. These scripts are not intended for |
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casual users. If you have any questions about them or would like help |
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writing one for your system, please contact the folks at: |
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MITgcm-support <MITgcm-support@mitgcm.org> |
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The convention is to name the directories here after the machine (or |
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"system" or site) where the scripts are known (or were known at one |
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time) to run. Directories are used since each system may use multiple |
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different testing scripts. |
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===== Why does it work this way? ===== |
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We're sorry that testreport does not work 100% automatically on all |
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MPI systems. The problem is that the $MPIRUN or equivalent command is |
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different on almost every system. Even on a single system, there may |
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be a variety of different $MPIRUN executables and each one might take |
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slightly different arguments, etc. And these $MPIRUN issues are |
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further complicated by their (often *forced*) interactions with |
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whatever queueing system is in effect. Many systems (eg. UCAR/NCAR) |
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will not allow a user to run any MPI programs--even small |
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ones--outside of their queueing system. So the MPI programs *MUST* be |
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submitted through the queue. |
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And this means that you have to get all of the queue system details |
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right including (but not limited to!): |
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- $QRUN syntax (PBS vs LoadLeveler vs Condor vs ...) |
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- paths to /scratch disks for input and output |
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- shells and shell parameters |
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- "module" conventions (PATHs) |
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- etc-etc-etc... |
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Unfortunately, these details can vary wildly from one system to the |
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next and often require per-user customizations. |
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These example scripts are meant only as templates! |