Messages in this thread | | | From | Gabriel C <> | Date | Mon, 28 May 2018 00:51:17 +0200 | Subject | Re: smpboot seems to be confused on dual EPYC system |
| |
2018-05-27 23:22 GMT+02:00 Gabriel C <nix.or.die@gmail.com>: > > 2018-05-27 22:07 GMT+02:00 Borislav Petkov <bp@alien8.de>: >> >> On Sun, May 20, 2018 at 03:23:32PM +0200, Gabriel C wrote: >> > Hello, >> > >> > I have an H11DSi-NT board with 2 * EPYC 7281 16C/32T CPUs. >> > >> > On that box for some reason spmboot things '4' logical packages >> > are possible. >> >> First of all, which kernel? > >
Here one box with single socket with an AMD EPYC 7551P on H11SSL-NC mobo running kernel 4.16.10:
... [ 0.000000] smpboot: Allowing 128 CPUs, 64 hotplug CPUs [ 0.030000] smpboot: CPU0: AMD EPYC 7551P 32-Core Processor (family: 0x17, model: 0x1, stepping: 0x2) [ 0.545084] smpboot: Max logical packages: 2 [ 0.545084] smpboot: Total of 64 processors activated (255989.37 BogoMIPS) ...
128CPUs for sure not possible and for sure no way to have '2' CPUs installed.
| |