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You have noticed that users can access all GPUs on a node even when they request only one GPU in their job script using --gres=gpu:1. This is causing resource contention and inefficient GPU usage. What configuration change would you make to restrict users' access to only their allocated GPUs?
Correct Answer: B
Comprehensive and Detailed Explanation From Exact Extract: To restrict users' access strictly to the GPUs allocated to their jobs, Slurm usescgroups (control groups)for resource isolation. Enabling device cgroup enforcement by settingConstrainDevices=yesincgroup. confenforces device access restrictions, ensuring jobs cannot access GPUs beyond those assigned. * Increasing memory allocation or setting job priorities does not restrict device access. * Modifying job scripts to request additional CPU cores does not limit GPU access. Hence, enablingcgroup enforcement with ConstrainDevices=yesis the correct method to prevent users from accessing unallocated GPUs.
