[-- Attachment #1: Type: text/plain, Size: 410 bytes --] 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. [-- Attachment #2: Type: text/html, Size: 569 bytes --]
[-- Attachment #1: Type: text/plain, Size: 895 bytes --] [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 <a.dibacco.ks@gmail.com<mailto:a.dibacco.ks@gmail.com>> Sent: Friday, April 22, 2022 10:22 AM To: users@dpdk.org<mailto:users@dpdk.org> 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. [-- Attachment #2: Type: text/html, Size: 4767 bytes --]
[-- Attachment #1: Type: text/plain, Size: 1119 bytes --] This was it !!! Thanks. Il giorno ven 22 apr 2022 alle ore 14:49 Tummala, Sivaprasad < Sivaprasad.Tummala@amd.com> ha scritto: > [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 <a.dibacco.ks@gmail.com> > *Sent:* Friday, April 22, 2022 10:22 AM > *To:* users@dpdk.org > *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. > > > > > > > [-- Attachment #2: Type: text/html, Size: 3474 bytes --]