Message boards : Graphics cards (GPUs) : Why don't my Work Units ever finish?
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I've tried at least six or seven times now over the past three months and they always run way out of time. I have only a GeForce 8500GT, driver version 18250,compute capability 1.1, 512 MB, est 5GFlops. BOINC 6.6.36. | |
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Betting Slip Send message Joined: 5 Jan 09 Posts: 670 Credit: 2,498,095,550 RAC: 0 Level  Scientific publications     | |
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Firstly 8500GT is not a fast card and while capable of running this project is not a recommended card. | |
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Bruce Downing Send message Joined: 20 Jul 09 Posts: 14 Credit: 294,872,142 RAC: 0 Level  Scientific publications   | |
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I also have work units which take forever. I am new to CUDA, so bear with me! | |
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Betting Slip Send message Joined: 5 Jan 09 Posts: 670 Credit: 2,498,095,550 RAC: 0 Level Scientific publications | |
I also have work units which take forever. I am new to CUDA, so bear with me! Hi Your 9800GT will do fine on this project as finishing a WU in 24hrs is great. However because of this project (due to an insuffiency in BOINC apparently) giving you a WU per CPU core you have 3 waiting while you crunch the first and when you finish that and report it, it will download another one so that you have 3 waiting again, a recipe for missing the deadline to say nothing of your 25% credit bonus for returning within 48hrs. The best thing you can do with your existing card is set GPU Grid in BOINC Manager to NO NEW TASKS until you finish all 4 that you have already. It should still report them as each one finishes (if it doesn't do it manually). When the last one finishes set project to ALLOW NEW TASKS and it will download another one as soon as it starts downloading a WU set to NO NEW TASKS again because if you don't you will get 4 again...rinse and repeat. To answer your question about a new card fast enough to avoid this problem you will need a GTX275 or maybe get away with GTX 260 and set to crunch while computer in use as these cards can handle it (especially 275 as long as your NOT gaming). The only problem that I can see is that you have a Dell. Dell sometimes use NON STANDARD cases and more importantly PSU's so be careful your PSU is powerfull enough for these new cards with right connectors and that they will fit in the case. Next time don't buy Dell (my opinion) Hope this helps. ____________ Radio Caroline, the world's most famous offshore pirate radio station. Great music since April 1964. Support Radio Caroline Team - Radio Caroline | |
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You might try adding | |
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Betting Slip Send message Joined: 5 Jan 09 Posts: 670 Credit: 2,498,095,550 RAC: 0 Level Scientific publications | |
You might try adding Good solution but if he is running other BOINC projects that use CPU he will only utilize 2 of his 4 cores. ____________ Radio Caroline, the world's most famous offshore pirate radio station. Great music since April 1964. Support Radio Caroline Team - Radio Caroline | |
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I know, but at least he will have a better chance at finishing GPUGrid packets this way. I just thought of another solution, setting the CPU %usage for each project in such a way that there is a 50/50 share between this project and other projects. That will allow him to use the other cores for other projects and for example two cores for GPUGrid. This may need some testing, tweaking and experimenting. | |
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Yes, I was afraid that the card is just too tiny. The machine is on 24x7 and the card is "allowed" all the time, but I'm also running SETI projects on the GPU, which halves the time available for GPUGRID. | |
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ExtraTerrestrial Apes Volunteer moderator Volunteer tester  Send message Joined: 17 Aug 08 Posts: 2705 Credit: 1,311,122,549 RAC: 0 Level  Scientific publications  | |
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Guys.. a 9800GT is fine for the project and all you have to do to get the bonus credits is to adjust ressource share and cache size. | |
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 skgivenVolunteer moderator Volunteer tester  Send message Joined: 23 Apr 09 Posts: 3968 Credit: 1,995,359,260 RAC: 0 Level  Scientific publications | |
I've tried at least six or seven times now over the past three months and they always run way out of time. I have only a GeForce 8500GT, driver version 18250,compute capability 1.1, 512 MB, est 5GFlops. BOINC 6.6.36. Yes! When I first attached to this project I struggled to get one result with an 8600GT and that had a Boinc rating of 14GFlops. You are wasting your time. If your card has <30GFlops you will struggle. I expect the tasks are longer now than when I started, so you might even struggle with 40GFlops cards. For anyone who is struggling to finish tasks because Boinc has downloaded 4 tasks, it’s likely to be because you are using out of date software or your boinc setting allow you to cache too much work. A few hours of cached tasks is plenty. If you have 4 GPUGRID tasks running and they keep hopping between each, and your system is not always on, you may not going to get them all finished unless you have a very high end card! If you are also crunching other GPU tasks such as Seti or Aqua you have less chance of finishing tasks. For anyone in this predicament I would recommend you select no more tasks (for the CUDA projects) and let the existing work units finish. Try to use suspend task and then enable it when the other task is complete (if it can finish on time). Then upgrade Boinc, your card drivers and configure your settings for say 0.2 days or 1 day of cached work. | |
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Message boards : Graphics cards (GPUs) : Why don't my Work Units ever finish?
