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World Community Grid Forums
Category: Completed Research
Forum: Help Conquer Cancer
Thread: Anyone care to hazard a guess as to how big a difference the forthcoming GPU option will make? |
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Thread Status: Active Total posts in this thread: 23
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gb009761
Master Cruncher Scotland Joined: Apr 6, 2005 Post Count: 2977 Status: Offline Project Badges: 
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I know it's still going through Beta testing (and thus, that, in itself, will have an effect on when the "speed up" will commence), although is there anyone willing to predict at this early stage as to how big an effect having the GPU option for HCC will make?
----------------------------------------Of course, there are (as yet) many unknowns to try and calculate into the equation; a) when the GPU application will be launched (as I don't personally have a GPU card, I haven't really been keeping up to speed with the progress of the latest testing), b) how many current crunchers will be able to help with the GPU speed up, c) how many new/returning crunchers will come back, d) the volume of the outstanding work (currently, as prediced by SekeRob's chart), just over 800 days, e) anything else I've missed...  |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
gb, if this is to gauge a sapphire option [don't take this the wrong way] ;>), 18 to 20 times faster, worst case, with an unknown if more work is added from around the planet [see scientist comment].
Just my guess, the feeder will have imposed limit on WU's that can be pulled long as the GPU tasks only hold one target [the CPU version has an imposed limit FAICS, maybe to make sure there's a reasonable period of GPU crunching left to do] Rumor central . The plan was to put multiple in a task... think to have seen 5 many moons ago, which either run serial or parallel. Serial would make it 5 times longer, parallel... hmmm modern cards can do more than 1 at the time. Than this further convolutes any project duration estimate, by the public side. |
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gb009761
Master Cruncher Scotland Joined: Apr 6, 2005 Post Count: 2977 Status: Offline Project Badges:
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Hi SekeRob, yes I'm currently in two minds as to whether to push on to try for a Sapphire HCC badge or not. If I go "full bore", I'm estimating that I'd need ~120 days of CPU supply - although as I'd also like to work on the VINA based projects at the same time, make that 240 days.
----------------------------------------Thus, methinks it'll be a HPF2 Sapphire badge I'll be working on in the very near future... |
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Jim1348
Veteran Cruncher USA Joined: Jul 13, 2009 Post Count: 1066 Status: Offline Project Badges: 
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The plan was to put multiple in a task... think to have seen 5 many moons ago, which either run serial or parallel. Serial would make it 5 times longer, parallel... hmmm modern cards can do more than 1 at the time. Serial is OK with me, but parallel poses a problem on CPU resources. My HD 7770s can easily handle three at a time, and very probably five at a time. But my CPU (Core 2 Duo at 3.0 GHz) limits me to two at a time (actually one at a time on two cards, but the load on the CPU is the same). Any more than that, and I would get problems in the responsiveness of the desktop. They are relatively minor problems compared to some other GPU projects I have tried, but I think it would be best to let the users control how many tasks run at a time. That can be accomplished with an app_info file, or preferably WCG could provide that option in their Device Profiles. But as you imply, the GPU tasks really fly, and will probably crunch through any remaining work quickly. Someone needs to provide more work. |
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rilian
Veteran Cruncher Ukraine - we rule! Joined: Jun 17, 2007 Post Count: 1452 Status: Offline Project Badges: 
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I think it is better to slowdown on HCC CPU now, putting efforts to other projects, and then quickly catch up when GPU is in production
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LUFTY
Cruncher Joined: Apr 27, 2007 Post Count: 25 Status: Offline Project Badges: 
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I agree wirh rilian that it is better to use CPU processing for other WCG tasks until the GPU version is released.
I have switched already away from Help Cure Cancer until GPU is released. |
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Simplex0
Advanced Cruncher Sweden Joined: Aug 14, 2008 Post Count: 83 Status: Offline Project Badges:
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Is any of the project in WCG using professional programmers to make the GPU applications to work? The GPU applications in Milkyway is 10000 times faster than the original applications an I am totally amazed that so fare only Milkyway and a bunch of non. science code cracking applications are the only ones that take full use of the double precision capability of the AMD GPU cards.
----------------------------------------[Edit 1 times, last edit by Simplex0 at Sep 22, 2012 1:10:20 PM] |
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gb009761
Master Cruncher Scotland Joined: Apr 6, 2005 Post Count: 2977 Status: Offline Project Badges:
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Okay, with today's launch of the HCC GPU option, let's see as to how big a difference it'll make - as (according to SekeRob's excellent charts), there's 730 days left.
----------------------------------------Anyone dare to give a guesstimate as to how soon the project will be complete (that is, providing no more work is added/everything works okay with the GPU launch etc.)? My guess is, it'll be complete within 3 months (based on a 10 fold increase). |
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LUFTY
Cruncher Joined: Apr 27, 2007 Post Count: 25 Status: Offline Project Badges:
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It would be great to get this one complete by the end of this year to prove GPU is the future for World Community Grid.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
GPU computing started yesterday evening.
wu estimated 55 minutes are completed in 1.8 minute, being 30 times faster than excpected. Each wu used 1 CPU (1/8 i7 2600k) at 60% load and 1 GPU (AMD Radeon HD7850) at 85% load. Good! |
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