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To login to perlmutter: `ssh -l $USER saul-p1perlmutter.nersc.gov` https://docs.nersc.gov/connect/
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To ask for a compute node: salloc -A ntrain6 --reservation=e3sm_day1 -C cpu -N 1 -c 32 -t 30 :00 -q shared (-t is time, units in minutes. -q shared means you would be sharing a compute node)
Note you don’t need --qos=interactive for reservations, but would want to use that when not using reservation.
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where the -A is indeed changing the account to be used – it charges against ntrain6 instead.
Can do this on the case.submit command via something like: case.submit -a="-A ntrain6 --reservation=e3sm_day1"
Note that the reservation name will be different for each new reservation. On May7th, Tuesday, the reservation name is e3sm_day1. On May8th, e3sm_day2, on May 9th, e3sm_day3, and May 10th e3sm_day4. The reservations are scheduled to last every day from 1pm to midnight except on the last day (1-5pm).
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To see list of your jobs: squeue -u $USER or sqs -u $USER
Can also change format of output:
| Code Block | ||
|---|---|---|
| ||
squeue -u $USER --format "%.8i %.42j %.9P %3f %.9q %.6a %.3u %.3t %.10M %.10l %.6D %19V %S" |
Unrelated to reservations, here is possible solution to the issue of some users not having write access to e3sm space:
/global/cfs/cdirs/ntrain6/www (contents will be removed after the tutorial)/global/cfs/cdirs/e3sm/www/Tutorials/2024/users
Note in general for perlmutter, when there is not access to a special reservation, the machine has a debug qos that can allow for much faster Q wait times. To use debug qos, job must be 8 nodes or less, 30 minutes or less, and can only have 5 jobs at a time in the debug qos.