50hr. task run times?
17 Jun 2012 23:16:58 UTC
Topic 196403
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A couple days ago, I gave permission to use my GPU AMD vision Tek HD 5450 1gb.ram (Cedar) and received my 1gb. task download... Intel I-3 2 cores, hyper-threaded 3.1ghz clock
My Name: John Huisman..user id. 570055[url]mixednutsduo3-[at]-yahoo.com...When I checked my computer this morning,ALL of my tasks showed a 50 hr.+ runtime..I started a couple and, indeed, they were very slow...Please send me any suggestions or known fixes..could this be a common problem related to GPU utilization (I've seen some negative comments posted) I am only moderately computer proficient..I only run E@home on BOINC..Thank you in advance, John[/u][/url]
50hr. task run times?
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Two questions. Are you running more than 1 GPU task at a time and are you running any CPU tasks along with the GPU tasks? If you're running more than 1 GPU task you might try running only 1 at a time. If you're also running CPU tasks you need to free 1 thread of the CPU to run GPU tasks. If all CPU cores are occupied the GPU will be fighting it for resources and make for very long crunch times.
RE: A couple days ago,
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I'm afraid that the 5450 will indeed not be very fast crunching BRP4 tasks, simply because it has rather few compute cores. It has less than 1/20 th of the performance of a HD 5870 (for example). Even tho you might be able to speed up the computation by reserving a CPU core for the GPU app, I doubt it makes much sense to do so. I would consider not using the GPU on this particular host for E@H.
Cheers
HB
Hi Again..Thank you so very
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Hi Again..Thank you so very much and all points and suggestions are well taken.I will discontinue running AMD 5450...I'll inspect each task and and when I find a GPU task, I guess I will abort them, unless you say it would be ill advised..I've been retired for 3 years and if time were money, I'd be a millionaire (old joke but still holds some truth)...Thanks, John
Don't abort them. Just set
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Don't abort them. Just set your project preferences (for that computer) to not request GPU tasks any longer or let BOINC ignore that GPU altogether (via cc_config.xml).
Gruß,
Gundolf
Computer sind nicht alles im Leben. (Kleiner Scherz)
