Development and Testing
Please remember that you are not allowed to run user applications on the login servers. Interactive work of any kind must be performed on a "dev" server within an interactive SLURM session.
If you need to develop code (i.e., the standard edit, build, test cycle) or test your workflows and scripts before submitting batch jobs, you should do so within an interactive development session under SLURM. The software environment on the nodes within the dev partition is kept consistent with that of the compute servers so you can run jobs and get an accurate idea of what resources are needed to successfully complete your jobs.
Connect to the cluster (ssh firstname.lastname@example.org) and use SLURM to start a developmental session.
For example, to get a four-hour session with the default 1 processor core and 2gb of memory:
$ module load ufrc $ srundev --time=04:00:00
The srundev command is a wrapper around the
srun --partition=hpg2-dev --pty bash -i command.
Other SLURM directives can also be added to request more processors or memory. For example:
$ module load ufrc $ srundev --time=60 --ntasks=1 --cpus-per-task=4 --mem=4gb
- The default time limit for the hpg2-dev partition is 00:10:00 (10 minutes). The maximum time limit in the dev partition is 12 hours.