As a note - My rig is running Windows 10.
I think it must be the CPU's that you're running, resulting in > 64 Logical processors as was mentioned earlier.
Under Windows 10, my 28c 56t dual 2680 v4's, all 56 logical processors are pinned at 100% utilisation during many operations in WBPP, namely calibration and integration, if I have 56 or more subs, all 56 logcial processors will be at 100% utilisation.
It would be interesting to see if jumping to Linux would making any sort of difference, however this machine is used for more than just PI, and some of those tasks are either not possible in Linux due to drivers/applications not existing, or far less performant.
I'm stuck with windows... but with 56 threads, I'm having a good time in PI with 2680 v4's..
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