I think I've found my answer. When running `scontrol show node <node>` I can use the variable called `CPUEfctv` to represent exactly how many effective schedulable CPUs are available. I'll probably wrap this up into a helper script too for our users plus add to our documentation. 

On Tue, May 19, 2026 at 1:45 PM Dan Healy <daniel.t.healy@gmail.com> wrote:

I'm curious how to report to our users that the number of available CPU cores on a given node are (CoresPerSocket * SocketsPerBoard * ThreadsPerCore) - CpuSpecCount. In a basic example, if the node has 32 cores and CpuSpecCount=1, then there's actually 31 cores available. If a user runs `srun -n32 -N1 bash` he/she will be denied for resources. Then, If a user runs `sinfo -O cpus,nodes` shows there's 32 cores available and the user is confused.

How can the user clearly identify that in the above case, the exact number of available CPU cores available are 31 and not 32?

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Thanks,

Daniel Healy

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Thanks,

Daniel Healy

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