Is a GPU throttle in the works?

Message boards : Graphics cards (GPUs) : Is a GPU throttle in the works?

Author	Message
Stephenish Send message Joined: 24 Mar 09 Posts: 37 Credit: 35,698,253 RAC: 0 Level Scientific publications	Message 13372 - Posted: 4 Nov 2009 \| 5:07:02 UTC
	I know BOINC allows CPU throttling by percentage. Is a like function workable/possible on CUDA devices? It is something I would love to see.
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Jet Send message Joined: 14 Jun 09 Posts: 25 Credit: 5,835,455 RAC: 0 Level Scientific publications	Message 13376 - Posted: 4 Nov 2009 \| 12:00:13 UTC - in response to Message 13372.
	What result you would like to achieve, you question is too common. It would be better explaine in details, for example.
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kowal Send message Joined: 11 Nov 09 Posts: 1 Credit: 0 RAC: 0 Level Scientific publications	Message 13498 - Posted: 11 Nov 2009 \| 18:51:39 UTC - in response to Message 13376.
	What result you would like to achieve, you question is too common. It would be better explaine in details, for example. Recently I joined gpugrid and find it to "overwhelm" my system. Meaning, my system becomes unresponsive for about 45 seconds every 2-4 minutes. Perhaps having throttle in place would allow client to reduce/limit of GPU use.
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DARGHelp Send message Joined: 8 Oct 09 Posts: 3 Credit: 6,598,882 RAC: 0 Level Scientific publications	Message 13798 - Posted: 5 Dec 2009 \| 15:44:15 UTC - in response to Message 13498. Last modified: 5 Dec 2009 \| 15:46:35 UTC
	I totally agree on the idea of having a way of throttling the GPU. Although if there is a way to make sure that you are only using 50% of the GPU... that I do not know about... then I am sorry. This is an incredible site and program, just thought I'd give my two cents worth.
	ID: 13798 \| Rating: 0 \| rate: / Reply Quote

skgiven Volunteer moderator Volunteer tester Send message Joined: 23 Apr 09 Posts: 3968 Credit: 1,995,359,260 RAC: 0 Level Scientific publications	Message 13909 - Posted: 13 Dec 2009 \| 13:23:49 UTC - in response to Message 13798.
	You could underclock the GPU, but that will not free up the system. Try reducing the CPU usage - System responsiveness will be more to do with that. You could set Boinc to only use the CPU 80% of the time, or perhaps just use one, two or three cores - for those that have a multi core CPU. There is a fair chance that other non-Boinc and non-GPUGrid things are responsible for locking up your system: Updates, web pages left open, Outlook, Backups running, Playing online content or watching a film, Disk defrag or scan by AV software!!!
	ID: 13909 \| Rating: 0 \| rate: / Reply Quote

hzels Send message Joined: 4 Sep 08 Posts: 7 Credit: 52,864,406 RAC: 0 Level Scientific publications	Message 14088 - Posted: 30 Dec 2009 \| 19:03:42 UTC - in response to Message 13798.
	IMO there is no need for throttling the GPU: Try to look at your card with gpu-z. On more recent cards like GTX260 and up you'll see that GPUGRID only use up to 60% of the GPU anyway. Collatz will use around 85% constantly while SETI has an average of 55% with spikes up to and higher than 90%.
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PeteS Send message Joined: 1 Jan 09 Posts: 7 Credit: 3,602,175 RAC: 0 Level Scientific publications	Message 14090 - Posted: 30 Dec 2009 \| 21:17:31 UTC - in response to Message 14088.
	IMO there is no need for throttling the GPU: Try to look at your card with gpu-z. On more recent cards like GTX260 and up you'll see that GPUGRID only use up to 60% of the GPU anyway. Collatz will use around 85% constantly while SETI has an average of 55% with spikes up to and higher than 90%. Just noticed the same with the new version of GPU-Z. I'm used to having a 90%+ load on my ATI-cards, and wondering if there are any settings I could try with GPUGrid applications? Seems like a waste to just use 60% of available power. With the ati apps you can define parameters or run two GPU-apps at the same time to maximise efficieny.
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hzels Send message Joined: 4 Sep 08 Posts: 7 Credit: 52,864,406 RAC: 0 Level Scientific publications	Message 14091 - Posted: 30 Dec 2009 \| 23:29:03 UTC - in response to Message 14090.
	Well, if you have something like a 9800GT or, even worse a Quadro NVS290 , the load on the GPU will be much higher. That means that the GPUGRID - WUs doesn't scale with better hardware. The gain in speed is partly through more shaders and/or higher speed and/or the wider memory interface. And all one can do about it is build up pressure on the project team to get the programming right or do it yourself (Note: I even don't know if the source is somewhere around). BTW, a software, build into the driver of the card, which would allow to assign time slices to applications running on that card wouldn't do any good. As the applications itself use only part of the capability of the hardware, you only get more overhead. On the other hand, a thing like Hyperthreading would do the job. But I doubt seeing something like this from Nvidia.
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DARGHelp Send message Joined: 8 Oct 09 Posts: 3 Credit: 6,598,882 RAC: 0 Level Scientific publications	Message 14102 - Posted: 3 Jan 2010 \| 11:17:55 UTC - in response to Message 13372.
	I found that TThrottle was designed just for this problem, although it did not work on my 9800XT... it is doing a amazing job on my 9800M GS. The GPU is running right at 158F/70C, which after digging into it, that seems fine. Here's the URL: http://www.efmer.eu/boinc/ Hope this helps
	ID: 14102 \| Rating: 0 \| rate: / Reply Quote

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Message boards : Graphics cards (GPUs) : Is a GPU throttle in the works?

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