View source for SLURM-Determining What Resources to Request


==Determining what resources to request==
Requesting the right amount of resources for jobs is one the most essential aspects of using Slurm (or running any jobs on an HPC). 

Before you submit a job for batch processing, it is important to know what the requirements of your program are so that it can run properly. Each program and workflow has unique requirements so we advise that you determine what resources you need before you write your script.

Keep in mind that increasing the amount of compute resources may also increase the amount of time that your job spends waiting in the queue. Within some limits, you may request whatever resources you need but bear in mind that other researchers need to be able to use those resources as well.

'''It is vital that you specify the resources you need as detailed as possible.''' This will help Slurm to better schedule your job and to allocate free resources to other users.

Below are some ways to specify the resources to ask for in your job script. These are options defined for the <code>sbatch</code> and <code>salloc</code> commands. There are additional options that you can find by checking the man pages for each command.