Matt On 6/28/2019 10:15 AM, Matt Fleming wrote: > On Wed, 26 Jun, at 09:18:01PM, Suthikulpanit, Suravee wrote: >> >> We use 16 to designate 1-hop latency (for different node within the same >> socket). >> For across-socket access, since the latency is greater, we set the latency >> to 32 >> (twice the latency of 1-hop) not aware of the RECLAIM_DISTANCE at the time. > > I guess the question is: Is the memory latency of a remote node 1 hop > away 1.6x the local node latency? >
Yes, remote node 1 hop is 1.6x the local node latency for AMD EPYC. Suravee
