Forum > Discussion Forum
CUDA for prime number search
Jason G:
Alright, I'll find out from Heinz what the score is. With Seti almost completely Broken there are other things on my plate that take precedence, but Heinz should really be able to manage at least boincApi updates + some Cuda optimisation.
Pepi:
--- Quote from: arkayn on 15 Sep 2011, 04:41:56 pm ---Collatz would be nice as well, maybe figure out what needs to be added to bring into compliance with the BOINC api.
I just wish I understood coding.
--- End quote ---
Yes Collatz needs cuda 4 app, but it looks like cuda 3.1 or cuda 3.2 or cuda4 will be aprox same speed...
Jason G:
--- Quote from: Pepi on 15 Sep 2011, 05:01:49 pm ---Yes Collatz needs cuda 4 app, but it looks like cuda 3.1 or cuda 3.2 or cuda4 will be aprox same speed...
--- End quote ---
Cuda 4.0 is immature, so has some issues, so I've been sticking with Cuda 3.2 until Cuda 4.1 comes out. x64 isn't a problem for any of us, only a question of whether it's worth bothering with apps that don't execute on CPU... 64 bit Cuda is slightly slower due to cost of larger pointers.
@Heinz: As you already PM'd me about PG before, consider looking at PrimeGrid & Collatz & I will point you to the right directions.
Pepi:
So can you putt down app in 32 bit? Any 32 bit app can be executed in 64 bit system, and it is easy to get 32 bit version of cuda dlls. And if you say that 64 bit is slower, just converting to 32 bit will increase speed :)
Jason G:
Probably. Depends if they actually used enough (V)RAM to justify[or require] a 64 bit address space. If they did that would be silly, since RAM is slower than computation these days, but anything is possible.
I won't be rushing into anything right now (as mentioned), but certainly since Heinz is interested in PG, and I know Heinz has the right tools etc, then probably it'll get looked at.
Jason
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version