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Lenovo Has a CXL Memory Monster with 128x 128GB DDR5 DIMMs

(www.servethehome.com)
28 points addaon | 4 comments | 20 Nov 24 02:53 UTC | HN request time: 0.602s | source
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tuananh ◴[20 Nov 24 04:24 UTC] No.42190811[source]▶
it's 16TB of DDR5 btw
replies(1): >>42190905 #
metadat ◴[20 Nov 24 04:50 UTC] No.42190905[source]▶
Yes, 128x128.

Good for a database, maybe.

What else?

replies(6): >>42191283 #>>42191285 #>>42191559 #>>42191737 #>>42191960 #>>42192376 #
1. moomoo11 ◴[20 Nov 24 07:32 UTC] No.42191559[source]▶
Dumb question but why don’t we see more cracked out high memory machines? I mean like 1 petabyte RAM.

Or do these already exist

replies(2): >>42192410 #>>42194227 #
2. guenthert ◴[20 Nov 24 10:09 UTC] No.42192410[source]▶
I'd think the market share for applications which need huge amount of space, but little CPU processing power and memory transfer rate is rather small.

Lenovo's slides indicate that they foresee this server be used for in-memory data bases.

Weren't there also distributed fs where the meta-data server couldn't be scaled out?

3. eqvinox ◴[20 Nov 24 14:34 UTC] No.42194227[source]▶
We don't see more of these machines because most tasks are better served by a higher number of smaller machines. The only benefit of boxes like this is having all of that RAM in one box. Very few use cases need that.
replies(1): >>42200049 #
4. moomoo11 ◴[21 Nov 24 01:22 UTC] No.42200049[source]▶
Would be fun for a graph db