Calculate Elo increased based on having 8, 16 or 32 cores ?

Discussion of anything and everything relating to chess playing software and machines.

Moderators: hgm, Rebel, chrisw

Chessqueen
Posts: 5582
Joined: Wed Sep 05, 2018 2:16 am
Location: Moving
Full name: Jorge Picado

Calculate Elo increased based on having 8, 16 or 32 cores ?

Post by Chessqueen »

Using the same GHz speed can somebody calculate how much Elo is gained by Stockfish or Komodo by doubling the cores lets say from 4 to 8 or from 8 to 16 cores. ?
Do NOT worry and be happy, we all live a short life :roll:
Chessqueen
Posts: 5582
Joined: Wed Sep 05, 2018 2:16 am
Location: Moving
Full name: Jorge Picado

Re: How much rating Komodo Dragon2 gain by doubling # of cores ?

Post by Chessqueen »

Chessqueen wrote: Wed Aug 25, 2021 11:07 pm Using the same GHz speed can somebody calculate how much Elo is gained by Stockfish or Komodo by doubling the cores lets say from 4 to 8 or from 8 to 16 cores. ?
I thought that Larry Kaufman already figured the rating increased of Komodo based on doubling the number of cores :roll:
Do NOT worry and be happy, we all live a short life :roll:
User avatar
yurikvelo
Posts: 710
Joined: Sat Dec 06, 2014 1:53 pm

Re: Calculate Elo increased based on having 8, 16 or 32 cores ?

Post by yurikvelo »

lkaufman
Posts: 5960
Joined: Sun Jan 10, 2010 6:15 am
Location: Maryland USA

Re: Calculate Elo increased based on having 8, 16 or 32 cores ?

Post by lkaufman »

Those results were pre-NNUE, so may be outdated now. Most likely doubling of threads will show smaller elo gains now with NNUE, since the level on one thread is much higher to start with. Also those results were at a very fast tc, not representative of play at time controls actually used by anyone, so probably too high for that reason as well. But they do show that benefit drops sharply beyond 16 threads.
Komodo rules!
Chessqueen
Posts: 5582
Joined: Wed Sep 05, 2018 2:16 am
Location: Moving
Full name: Jorge Picado

Re: Calculate Elo increased based on having 8, 16 or 32 cores ?

Post by Chessqueen »

lkaufman wrote: Thu Sep 02, 2021 12:09 am
Those results were pre-NNUE, so may be outdated now. Most likely doubling of threads will show smaller elo gains now with NNUE, since the level on one thread is much higher to start with. Also those results were at a very fast TC, not representative of play at time controls actually used by anyone, so probably too high for that reason as well. But they do show that benefit drops sharply beyond 16 threads.
That is what I thought that after 16 threads the benefit or Elo gain drops significantly.
Do NOT worry and be happy, we all live a short life :roll: