AMD, list the minimum supported kernel for EPYC/NAPLES as RHEL/Centos kernel 3.10-862, which is RHEL/CentOS 7.5 or later. Upgraded kernels can be used in 7.4.

http://developer.amd.com/wp-content/resources/56420.pdf

-Ray Muno

On 1/8/20 7:37 PM, Raymond Muno wrote:
We are running EPYC 7451 and 7702 nodes.  I do not recall that CentOS 6 was able to support these. We moved on to CentOS 7.6 at first and are now running 7.7 to support the EPYC2/Rome nodes. The kernel in earlier releases did not support x2APIC and could not handle 256 threads. Not and issue on EPYC/Naples, but it was an issue on dual 64 core EPYC2.

Redhat lists 7.4 as the minimum for EPYC(Naples) support and 7.6.6 for EPYC2(Rome).

-Ray Muno

On 1/8/20 2:51 PM, Prentice Bisbal via users wrote:

On 1/8/20 3:30 PM, Brice Goglin via users wrote:
Le 08/01/2020 à 21:20, Prentice Bisbal via users a écrit :
We just added about a dozen nodes to our cluster, which have AMD EPYC
7281 processors. When a particular users jobs fall on one of these
nodes, he gets these error messages:

--------------------------------------------------------------------------

WARNING: a request was made to bind a process. While the system
supports binding the process itself, at least one node does NOT
support binding memory to the process location.

   Node:  dawson205

I wonder if the CentOS 6 kernel properly supports these recent
processors. Does lstopo show NUMA nodes as expected?

Brice

lstopo shows different numa nodes, and it appears to be correct, but I don't use lstopo that much, so I'm not 100%  confident that what it's showing is correct. I'm at about 98%.

Prentice

--
Ray Muno
 IT Manager
 University of Minnesota
 Aerospace Engineering and Mechanics         Mechanical Engineering

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