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Message boards :
Number crunching :
Limit of 64 Logical Processors / Cores Per Host?
(Message 4377)
Posted 26 Jun 2020 by SKAFFEN Post: I run U@H along with Asteroids, Milkyway and Einstein on a machine with 2x 28 core CPU's, 56 cores total, with hyperthreading on to give 112 logical processors. Machine ID: 564374, Ranked Number 10 by RAC at the moment. This is on Windows 10 for Workstations, I already have found that Windows 10 Pro does not handle NUMA nodes for systems with more than 64 logical processors correctly. This machine does not seem to work well with Universe@home, which will only let 64 logical processors operate, or so it seems to me. Universe@Home also seems to stop the other BOINC tasks using the remaining logical processors while running, so processor utilization is never more than 70% with even a single U@H task running alongside other BOINC projects, but immediately ramps up to 100% on all logical processors when I suspend U@H, and let other BOINC projects take over. This does not happen on my other machine with 2x 10 core CPU's, with hyperthreading on to give 40 logical processors. That one runs completely happily at 100% whatever is running under BOINC. It seems like I can't change anything in my setup to improve this behavior, any suggestions? Cheers SKAFFEN |
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