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- In HPC, there are three work locations (file systems):
- Home dir <cd or cd $HOME>
- Work dir
- Scratch dir <cds or cd $SCRATCH>
- Longhorn directly exposes home and scratch, but not work
- There's There’s no quota on scratch, but those files will get deleted fairly often, as often as weekly.
- Depends on last time files were accessed.
- If you need to keep some files for a while, log in daily and touch all the files.
- For example in scratch directory:
- cds
- touch
- find . --exe touch {} \:
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- Launcher1 is the submit script
- Read the batch queue info at http://www.tacc.utexas.edu/user-services/user-guides/longhorn-user-guide . (see "Running “Running your Applications)
- For the first large scale range model run, Edwin used the normal queue
- There is a priority for long queue jobs.
- There's There’s a limit to the number of jobs a user can run at a time.
- The others are held in queue
- The # alone indicates a comment.
- If # is followed by $ or @ it indicates parameters.
- # comment
- #$, #@ are parameters
- job – one or more tasks
- -pe 8way queues 8 jobs at once
- Edwin had to submit another job with tasks that didn't didn’t finish.
- module load launcher - sets up the environment
- qsub - sumits job to the queue
- qstat – tells you if job is running, where, how long, etc.
- Parameters in launcher1 are defined in longhorn documentation (user guide)
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