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This is allowed only for very short runs on the login nodes, and very soon the interactive environment will have . Soon we will impose 10 minutes cpu-time limit for the interactive processes. Please do not execute parallel applications on the login nodes!
Batch
As usual on HPC systems, the large production runs are executed in batch mode. This means that the user writes a list of commands into a file (for example script.x) and then submits it to a scheduler (SLURM for Leonardo) that will search for the required resources in the system. As soon as the resources are available script.x is executed and the results and sent back to the user.
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