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niconiconi (niconiconi@mk.absturztau.be)'s status on Friday, 16-Jun-2023 22:59:45 JST niconiconi

"If this article could be read by processors makers, let us ask them for more cache per core, not only more cores. In any case, we prefer more cache than higher clock frequencies."10 years later, AMD Milan-X and Genoa-X be like, "write that done, write that done!"
In conversation Friday, 16-Jun-2023 22:59:45 JST from mk.absturztau.be permalink
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1. Splitting the domain into sub-domains is done so that every sub-domain fits in cache, taking care of the actual available cache size for the multicore case in parallel. The number of data accesses, when cache conflicts do not occur, is reduced to 2 × (3 + 3 + 3) / 6 = 3 (3.1) per field update, instead of 6 as seen previously in relation 2.5 section 2.2. Let us explain that. For the electric field update, we need to load the magnetic field, the electric field, and then write the electric field. Without cache conflict, we may compute twice as many values inside domains as in the monolithic case, but there remains to compute the values at the interfaces of the domains. The extra-cost becomes negligible if the sub-domains size is large... which is not possible if the cache size is too small. In practice, a 2 MB data cache size is required to really improve performance. If this article could be read by processors makers, let us ask them for more cache per core, not only more cores. In any case, we prefer more cache than higher clock frequencies.
  https://misskey-taube.s3.wasabisys.com/files/d3f7ffe4-41cd-47ba-8cd7-10ab272d41e8.png
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  翠星石 (suiseiseki@freesoftwareextremist.com)'s status on Friday, 16-Jun-2023 22:59:42 JST 翠星石
  in reply to
  
  @niconiconi Ez, you just delete the post and repost it without the typos.
  
  In conversation Friday, 16-Jun-2023 22:59:42 JST permalink
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  niconiconi (niconiconi@mk.absturztau.be)'s status on Friday, 16-Jun-2023 22:59:43 JST niconiconi
  in reply to
  - :bun: Stellar (not lewd)
  @Stellar When will Misskey support post editing? :woozy_baa:
  
  In conversation Friday, 16-Jun-2023 22:59:43 JST permalink
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  :bun: Stellar (not lewd) (stellar@mk.absturztau.be)'s status on Friday, 16-Jun-2023 22:59:44 JST :bun: Stellar (not lewd)
  in reply to
  
  @niconiconi down*
  
  In conversation Friday, 16-Jun-2023 22:59:44 JST permalink
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  翠星石 (suiseiseki@freesoftwareextremist.com)'s status on Friday, 16-Jun-2023 23:26:36 JST 翠星石
  in reply to
  - Jernej Simončič �
  @jernej__s Precisely.
  
  In conversation Friday, 16-Jun-2023 23:26:36 JST permalink
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  Jernej Simončič � (jernej__s@infosec.exchange)'s status on Friday, 16-Jun-2023 23:26:37 JST Jernej Simončič �
  in reply to
  - 翠星石
  @Suiseiseki @niconiconi Doesn't that lose all the replies?
  
  In conversation Friday, 16-Jun-2023 23:26:37 JST permalink

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