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From: Antonio Di Bacco <a.dibacco.ks@gmail.com>
To: "Tummala, Sivaprasad" <Sivaprasad.Tummala@amd.com>
Cc: "users@dpdk.org" <users@dpdk.org>
Subject: Re: AMD NPS bios change is is not reflected onto NUMA domains detected by DPDK 21.11
Date: Fri, 22 Apr 2022 17:51:54 +0200
Message-ID: <CAO8pfFkGu17vkJZ3uGoLsJtDOh5Qvf9ccGdXBHTKJ_Tg-MdLNQ@mail.gmail.com> (raw)
In-Reply-To: <CY4PR12MB162343815985BF400285736386F79@CY4PR12MB1623.namprd12.prod.outlook.com>

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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.
>
>
>
>
>
>
>

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      reply	other threads:[~2022-04-22 15:52 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-22  9:22 Antonio Di Bacco
     [not found] ` <DM6PR02MB5017C8B3DE4B5EC022AE3085D0F79@DM6PR02MB5017.namprd02.prod.outlook.com>
2022-04-22 12:49   ` Tummala, Sivaprasad
2022-04-22 15:51     ` Antonio Di Bacco [this message]

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