Message boards : Number crunching : workload not optimum
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Jorge Alberto Ramos Olive... Send message Joined: 13 Aug 09 Posts: 24 Credit: 156,684,745 RAC: 0 Level  Scientific publications     | |
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Hello everyone! So here's my problem: Computer is connected to the Internet about every 0 days Leave blank or 0 if always connected. BOINC will try to maintain at least this much work (max 10 days). Additional work buffer 0.05 days How can I get 4 tasks at all times? thanks! | |
ID: 27893 | Rating: 0 | rate:
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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   | |
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Going by the descriptions I think you are using old Boinc software. | |
| ID: 27901 | Rating: 0 | rate:
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Jorge Alberto Ramos Olive... Send message Joined: 13 Aug 09 Posts: 24 Credit: 156,684,745 RAC: 0 Level Scientific publications | |
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Sorry, I should have told that info before. I am running the latest BOINC client (7.0.28) and also have use_all_gpus flag to 1 in config file. I actually have "5" GPUs: the equivalent of 4 GTX 680 (two GTX 690, non-SLI) and 1 640 GT. I have also set GPUGrid to use only the four 680's (the two 690) by setting <exclude_gpu> <url>http://www.gpugrid.net/</url> [<device_num>1</device_num>] </exclude_gpu> in the config file. All goes well, GPUGrid never utilizes the GT 640 (device 1 in my system) and the 4 remaining GPUs are used. Nevertheless, it uses the two 690s for about a day, and then "rests" for another day, using only 2 GPU's (I mean, 1 GPU in 1 690 and 1 GPU in the other 690). When this happens, the client is "smart" enough that it uses 1 GPU in each 690 card. I never leaves 1 card totally iddle. I never "use" the 690s (for display, like games): their only reason for existence is crunching GPUGrid workunits ;). I'm stumped :S P.S. The two 690 cards are actually physically linked for SLI, but is not enabled in the NVIDIA control panel. I am positive that this is not the cause of the problem as the it persists in a periodic, repeatable and totally predictable fashion. If this was the cause, like some kind of software glitch in the NVIDIA control panel, it would be totally random, dont you think? This is as if there is some kind of GPU protection from the server side, and sending only half the workload after 1 day, but have never heard of this before. | |
| ID: 27905 | Rating: 0 | rate:
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I don't know if this helps or not, but I also have my two 670's in a SLI bridge, but also crunching/folding etc with SLI disabled and I have had no issues. | |
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Retvari Zoltan Send message Joined: 20 Jan 09 Posts: 2343 Credit: 16,201,255,749 RAC: 851 Level  Scientific publications | |
This is as if there is some kind of GPU protection from the server side, and sending only half the workload after 1 day, but have never heard of this before. No such protection is in operation on the server side. Why don't you remove the GT640? | |
| ID: 27908 | Rating: 0 | rate:
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Jorge Alberto Ramos Olive... Send message Joined: 13 Aug 09 Posts: 24 Credit: 156,684,745 RAC: 0 Level Scientific publications | |
I don't know if this helps or not, but I also have my two 670's in a SLI bridge, but also crunching/folding etc with SLI disabled and I have had no issues. This has happened for days and computer restarts. I started researchign in the BOINC forums as this might be tied to a client issue. Will get back here if I find something usefull... | |
| ID: 27909 | Rating: 0 | rate:
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Jorge Alberto Ramos Olive... Send message Joined: 13 Aug 09 Posts: 24 Credit: 156,684,745 RAC: 0 Level Scientific publications | |
This is as if there is some kind of GPU protection from the server side, and sending only half the workload after 1 day, but have never heard of this before. I use that as the primary display device and for SETI@home too ;) | |
| ID: 27910 | Rating: 0 | rate:
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Retvari Zoltan Send message Joined: 20 Jan 09 Posts: 2343 Credit: 16,201,255,749 RAC: 851 Level Scientific publications | |
Why don't you remove the GT640? A GTX 690 isn't lagging if it is used for crunching and as the primary display device at the same time (I know it from my experience). You lose much more credit by the idle GPUs, than you gain by a GT640. | |
| ID: 27911 | Rating: 0 | rate:
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What Retvari said is true about using the same GPU for crunching and for display at the same time. I do this with my computer and even play games while crunching, although this does slow down WU completion times, but I haven't had any issues. | |
| ID: 27913 | Rating: 0 | rate:
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skgiven Volunteer moderator Volunteer tester Send message Joined: 23 Apr 09 Posts: 3968 Credit: 1,995,359,260 RAC: 0 Level Scientific publications | |
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I would still disable the physical SLI link. What's the point in having it, if it's not used? | |
| ID: 27917 | Rating: 0 | rate:
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Jorge Alberto Ramos Olive... Send message Joined: 13 Aug 09 Posts: 24 Credit: 156,684,745 RAC: 0 Level Scientific publications | |
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It's been a week since my fisrt post and I haven't found a solution. I decided then to disattach the seti project in favor of this one and thus having only one project to work on. Hopefully, this will permit my system crunch 24/7 at full workload without strange work-fetch BOINC behaviour. | |
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werdwerdus  Send message Joined: 15 Apr 10 Posts: 123 Credit: 1,004,473,861 RAC: 0 Level  Scientific publications | |
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attaching to 2 GPU projects with one client is not recommended. Causes problems getting correct amount of work from both. | |
| ID: 27973 | Rating: 0 | rate:
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Message boards : Number crunching : workload not optimum
