Re: [hwloc-users] AMD EPYC topology

2017-12-29 Thread Bill Broadley
Very interesting, I was running parallel finite element code and was seeing great performance compared to Intel in most cases, but on larger runs it was 20x slower. This would explain it. Do you know which commit, or anything else that might help find any related discussion? I tried a few

Re: [hwloc-users] [WARNING: A/V UNSCANNABLE] hwloc 1.11.0 seems to have problem with 3.13 kernel on AMD bulldozer

2015-07-23 Thread Bill Broadley
I have the same problem with ubuntu 14.04.2 (fully patched) using the 3.13.0-58 and hwloc-1.11.0: * hwloc 1.11.0 has encountered what looks like an error from the operating system. * * L3 (cpuset 0x03f0) intersects with NUMANode (P#0 cpuset 0x003f) without inclusion! * Error occurred in