[Beowulf] immersion [EXT]

[Peter Clapham]

The number of world wide DC’s that can accommodate 500kW/rack at any form of scale is very small. So this is an ever decreasing market, particularly for countries aligning with net zero commitments. So a market space is required.

The view from some companies/orgs, is that the Hyperscalars will take this worry away from you… for a price.

On prem, I guess it’s back to the beginning. Why are we doing this and how are our systems adding value and delivering the science/insights that make the magic happen. Just another controversial $0.02
Pete

From: Beowulf <beowulf-bounces at beowulf.org> On Behalf Of Scott Atchley
Sent: 07 April 2024 23:07
To: Michael DiDomenico <mdidomenico4 at gmail.com>
Cc: Beowulf Mailing List <Beowulf at beowulf.org>
Subject: Re: [Beowulf] immersion [EXT]

On Sun, Mar 24, 2024 at 2:38 PM Michael DiDomenico <mdidomenico4 at gmail.com<mailto:mdidomenico4 at gmail.com>> wrote:
i'm curious if others think DLC might hit a power limit sooner or later, like Air cooling already has, given chips keep climbing in watts.

What I am worried about is power per blade/node.  The Cray EX design used in Frontier has a limit per blade. Frontier and El Cap have two nodes per blade. Aurora, which uses more power, only has one node per blade. I imagine that ORv3 racks will have similar issues.

We can remove 6KW per blade today and I am confident that we can remove some more. That said, we could reach a point where a blade might just be a single processor.



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