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charset="us-ascii" Content-Transfer-Encoding: quoted-printable [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 > 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 an= d 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 do= mains. I tried with NPS1, NPS2, NPS4. --_000_CY4PR12MB162343815985BF400285736386F79CY4PR12MB1623namp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

[AMD Officia= l Use Only]

 

Hi Antonio, <= /p>

 

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 NU= MA 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 d= etected by DPDK 21.11

 

Using an  AMD EPYC 7713 64= -Core Processor (there are two on the server) for a total of 128 cores.&nbs= p;

 

If I change the NPS (numa per s= ocket) in BIOS and power cycle the system and the I launch a DPDK applicati= on, I always get this message:

 

EAL: Detected CPU lcores: 128 EAL: Detected NUMA nodes: 16

 

NPS is able to change the numbe= r of NUMA but DPDK always detects 16 NUMA domains.

I tried with NPS1, NPS2, NPS4.<= o:p>

 

 

 

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