[HTCondor-users] HTCONDOR-2470 bpf to restrict gpu access

[Vikrant Aggarwal <ervikrant06@xxxxxxxxx>]

Hello Experts,

Sorry for multiple emails.Â

I read through the release notes and found this in release notes of feature releases:Â

In cgroup v1, we use the devices cgroup controller to limit access to GPUs that have not been provisioned to us. cgroup v2 does not have such a controller, but requires us to install a bpf program to limit access.
Linux systems running cgroup v2 will now hide GPUs that have not been provisioned to the slots (usually because they did not request_gpus).Â

Is this functionality included in the LTS 24.0.1 version? Asking as still in slot classad I can see all gpus are advertised, how could I confirm that job is only having the gpu allocated. as BPF not part of cgroup hierarchy.

shows me cgroup hierarchy but it doesn't showÂ

# bpftool cgroup tree

The following is also empty.Â

/sys/fs/bpf/

Thanks & Regards,

Vikrant Aggarwal