Questions and Answers :
GPU applications :
Too much GPU used with CUDA
Message board moderation
Author | Message |
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theshadowmaker Send message Joined: 30 Nov 04 Posts: 3 Credit: 56,079 RAC: 0 |
Hi everybody. I've been into SETI since 2004, and yesterday tried the new CUDA capabilities. The problem is that everything's running properly, but when I turn on GPU using, it uses ALL memory and boost of the graphic card. With normal CPUs it's not a problem: it uses everything you dont use for anything else (Projects at boinc' priority < everything else) but with that GPU projects (SETI by now) it's just the reverse thing. I'm a student, so most of the time I don't use ALL my CPUs nor GPU, but I'd like to have at least enough to work properly. I've got a Quad Core 2.4 Ghz, 4 gb ram, a NVIDIA 8600GT with 1GB ram. What can I do?? I'd like to be my GPU like my CPUs, just in the background :D |
Gundolf Jahn Send message Joined: 19 Sep 00 Posts: 3184 Credit: 446,358 RAC: 0 |
I'd like to be my GPU like my CPUs, just in the background :D Okay, then just tell it to do so ;-) Setting your preferences for "Suspend GPU work while computer is in use?" to "yes" might help. Gruß, Gundolf [edit]Don't forget to check local and online preferences.[/edit] Computer sind nicht alles im Leben. (Kleiner Scherz) SETI@home classic workunits 3,758 SETI@home classic CPU time 66,520 hours |
theshadowmaker Send message Joined: 30 Nov 04 Posts: 3 Credit: 56,079 RAC: 0 |
Yeah, but i dont wanna suspend GPU computation while in use. I mean, probably I need usually only 20% of GPU for Windows, apps, and so on. So I'd like to tell BOINC to use AT MOST 80% of GPU. With CPUs that's no problem, BOINC automatically adjust itself to "don't bother" other programs (it has lowest priority) but that's not true for GPUs... isn't it?? Thx, JoaquÃn |
The Weasel Send message Joined: 6 Jun 99 Posts: 127 Credit: 53,205,208 RAC: 0 |
From what i've read, its all or nonthing on the gpu, set it to suspend tasks when active and then you can set the time to to suspends tasks, so if you use the computer it suspends tasks set time for 1 minute, then when you leave your computer alone for a minute, it starts back up. |
theshadowmaker Send message Joined: 30 Nov 04 Posts: 3 Credit: 56,079 RAC: 0 |
Thanks, for the moment I've set it to restart GPU as soon as 1 minute inactive, just to compute even when gone to toilet :D for a few moments. But I honestly think it should definitely be improved, in order to use GPUs as fast CPUs even when in "low use". Thx!! :) |
Jord Send message Joined: 9 Jun 99 Posts: 15184 Credit: 4,362,181 RAC: 3 |
But I honestly think it should definitely be improved, in order to use GPUs as fast CPUs even when in "low use". The GPU can only run in full mode or no mode. It can't run in half mode (aka throttling). If you want to throttle, do so on the CPU. That will automatically throttle the amount of data going to the GPU. |
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