Can Leela use 2x RTX gpus?

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Hai
Posts: 598
Joined: Sun Aug 04, 2013 1:19 pm

Can Leela use 2x RTX gpus?

Post by Hai »

Using chessbase 15 gui?
Using chessok Aquarium gui?
What should I do?
Werewolf
Posts: 1795
Joined: Thu Sep 18, 2008 10:24 pm

Re: Can Leela use 2x RTX gpus?

Post by Werewolf »

Hai wrote: Fri Apr 26, 2019 2:17 pm Using chessbase 15 gui?
Using chessok Aquarium gui?
What should I do?
Google and see where this has been asked many times before
Ron Langeveld
Posts: 140
Joined: Tue Jan 05, 2010 8:02 pm

Re: Can Leela use 2x RTX gpus?

Post by Ron Langeveld »

Could be the 20th entry on this list?

https://brightside.me/wonder-curiositie ... le-381260/
Hai
Posts: 598
Joined: Sun Aug 04, 2013 1:19 pm

Re: Can Leela use 2x RTX gpus?

Post by Hai »

Werewolf wrote: Fri Apr 26, 2019 6:20 pm
Hai wrote: Fri Apr 26, 2019 2:17 pm Using chessbase 15 gui?
Using chessok Aquarium gui?
What should I do?
Google and see where this has been asked many times before
Done, but still some guys have speed problems to reach more nps, not like it would be 2 gpus.
Albert Silver
Posts: 3019
Joined: Wed Mar 08, 2006 9:57 pm
Location: Rio de Janeiro, Brazil

Re: Can Leela use 2x RTX gpus?

Post by Albert Silver »

Hai wrote: Sat Apr 27, 2019 6:42 pm
Werewolf wrote: Fri Apr 26, 2019 6:20 pm
Hai wrote: Fri Apr 26, 2019 2:17 pm Using chessbase 15 gui?
Using chessok Aquarium gui?
What should I do?
Google and see where this has been asked many times before
Done, but still some guys have speed problems to reach more nps, not like it would be 2 gpus.
The CPU they have is also a factor. Slow core clocks will hurt performance, such as typical Xeons or the like.
"Tactics are the bricks and sticks that make up a game, but positional play is the architectural blueprint."
Gino Figlio
Posts: 95
Joined: Sun Jan 10, 2010 6:10 am
Location: Lamar, Colorado, USA

Re: Can Leela use 2x RTX gpus?

Post by Gino Figlio »

What would be the best CPU for an RTX 2080? Are there benchmarks somewhere?
corres
Posts: 3657
Joined: Wed Nov 18, 2015 11:41 am
Location: hungary

Re: Can Leela use 2x RTX gpus?

Post by corres »

Hai wrote: Fri Apr 26, 2019 2:17 pm ...
Your main question is rather stupid.
Do you not know TCEC and CCCC also use multiple GPUs?
Werewolf
Posts: 1795
Joined: Thu Sep 18, 2008 10:24 pm

Re: Can Leela use 2x RTX gpus?

Post by Werewolf »

Albert Silver wrote: Sat Apr 27, 2019 6:46 pm
Hai wrote: Sat Apr 27, 2019 6:42 pm
Werewolf wrote: Fri Apr 26, 2019 6:20 pm
Hai wrote: Fri Apr 26, 2019 2:17 pm Using chessbase 15 gui?
Using chessok Aquarium gui?
What should I do?
Google and see where this has been asked many times before
Done, but still some guys have speed problems to reach more nps, not like it would be 2 gpus.
The CPU they have is also a factor. Slow core clocks will hurt performance, such as typical Xeons or the like.
And raising thread count on the cpu doesn't help? I was surprised when I saw that the best CPU thread count for a dual 2080 Ti is 3. I assumed therefore the issue was simply the CPU isn't doing too much.

But are you saying it doesn't scale up with more cores very well?
corres
Posts: 3657
Joined: Wed Nov 18, 2015 11:41 am
Location: hungary

Re: Can Leela use 2x RTX gpus?

Post by corres »

You forget the effect of the used GPUs and the effect of motherboard and its settings: SLI/CrossFire/NONE.
Albert Silver
Posts: 3019
Joined: Wed Mar 08, 2006 9:57 pm
Location: Rio de Janeiro, Brazil

Re: Can Leela use 2x RTX gpus?

Post by Albert Silver »

Werewolf wrote: Sun Apr 28, 2019 9:04 am
Albert Silver wrote: Sat Apr 27, 2019 6:46 pm
Hai wrote: Sat Apr 27, 2019 6:42 pm
Werewolf wrote: Fri Apr 26, 2019 6:20 pm
Hai wrote: Fri Apr 26, 2019 2:17 pm Using chessbase 15 gui?
Using chessok Aquarium gui?
What should I do?
Google and see where this has been asked many times before
Done, but still some guys have speed problems to reach more nps, not like it would be 2 gpus.
The CPU they have is also a factor. Slow core clocks will hurt performance, such as typical Xeons or the like.
And raising thread count on the cpu doesn't help? I was surprised when I saw that the best CPU thread count for a dual 2080 Ti is 3. I assumed therefore the issue was simply the CPU isn't doing too much.

But are you saying it doesn't scale up with more cores very well?
No, I am saying it doesn't scale up with more cores at all. In fact, you will lose performance with more cores, not gain.
"Tactics are the bricks and sticks that make up a game, but positional play is the architectural blueprint."