[AMD Official Use Only] Hi Antonio,
You need to change the BIOS parameter "L3 Cache as NUMA Domain" to "Disable". With this, each L3 cache will not be reported as a NUMA domain (/NUMA node). Thank you! From: Antonio Di Bacco <[email protected]<mailto:[email protected]>> Sent: Friday, April 22, 2022 10:22 AM To: [email protected]<mailto:[email protected]> Subject: AMD NPS bios change is is not reflected onto NUMA domains detected by DPDK 21.11 Using an AMD EPYC 7713 64-Core Processor (there are two on the server) for a total of 128 cores. If I change the NPS (numa per socket) in BIOS and power cycle the system and the I launch a DPDK application, I always get this message: EAL: Detected CPU lcores: 128 EAL: Detected NUMA nodes: 16 NPS is able to change the number of NUMA but DPDK always detects 16 NUMA domains. I tried with NPS1, NPS2, NPS4.
