Message boards : Graphics cards (GPUs) : A bit overeager scheduler
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I got 4 new WUs sitting on my puter, all with quite wrong duration estimates (far too short) and a very short deadline: 29 Jul 2008 18:36:19 UTC +/- an hour. They will probably take quite some time into august to complete, should I rather kill them prematurely or wait how far I get? Sa 26 Jul 2008 14:18:32 CEST|PS3GRID|Sending scheduler request: To fetch work. Requesting 1470 seconds of work, reporting 0 completed tasks Can anyone enlighten me what the number of CPUs has to do with GPU crunching? I need one per GPU, and as I only have one those four will never run in parallel (or at least I think so). I've set the project to NNW and will manage it by hand for the time being, it's alpha, so such things are expected and manual handling is one of the fun things in alpha ;) ____________ Gruesse vom Saenger For questions about Boinc look in the BOINC-Wiki | |
ID: 1363 | Rating: 0 | rate: / Reply Quote | |
I got 4 new WUs sitting on my puter, all with quite wrong duration estimates (far too short) and a very short deadline: 29 Jul 2008 18:36:19 UTC +/- an hour. They will probably take quite some time into august to complete, should I rather kill them prematurely or wait how far I get? You get 4 days to do each workunit. The EST time is based on your CPU speed not on your GPU speed, guess that's a Boinc limitation at the moment. And the project gives you 1 task per cpu/core so on a quad core you can end up with 4 at a time :( That's ok if you have a card that can do 4 in 4 days, but if not, best to abort the ones you won't do. What I done when I was running it on my quad (it took about 12 hours 40 minutes per workunit), was let it 2 at most and then set it to no new work. wait till it was near finishing the 2nd of the 2 workunits, and let it get more work. If you have any workunits with the name FASTTEST in them, you can leave them, as they run fast, for me they took about 47 seconds to complete. ____________ Down with the Kredit Kops!!! | |
ID: 1367 | Rating: 0 | rate: / Reply Quote | |
You get 4 days to do each workunit. The one currently crunching is at 40% and 20h, running in panic mode already. It was estimated with 5h, like two of the others as well, the forth is estimated with 13h. If the estimate <-> reality factor stays it will take 50h for the "short" ones and 130h for the longer one, it won't fit in 4 days ;) The 1/core should be dropped immediately to 1/host (or 2/host at max), as usually there is only one graphic card in a host, regardless of the number of cores. ____________ Gruesse vom Saenger For questions about Boinc look in the BOINC-Wiki | |
ID: 1368 | Rating: 0 | rate: / Reply Quote | |
Yeah I agree the 1 task per host would be a better option, since there is no multi GPU app at the moment, and probably even fewer users who have multi GPU systems. As when I was running it on the quad if I got 4 workunits, Boinc would start to painc, with it thinking each one would take 38 hours :( | |
ID: 1370 | Rating: 0 | rate: / Reply Quote | |
Yeah I agree the 1 task per host would be a better option, since there is no multi GPU app at the moment, and probably even fewer users who have multi GPU systems. As when I was running it on the quad if I got 4 workunits, Boinc would start to painc, with it thinking each one would take 38 hours :( I've got a 8600GT, that's probably some big difference. Here's my system (it's a bit german, but I don't think it's a problem). The first one took 50h, the current one is planning to take 50h, it's not that big sample, but it's coherent ;) ____________ Gruesse vom Saenger For questions about Boinc look in the BOINC-Wiki | |
ID: 1372 | Rating: 0 | rate: / Reply Quote | |
The first one took 50h, the current one is planning to take 50h, it's not that big sample, but it's coherent ;) For the 23 or so that I have done on the 8800GT the time has been about the same. Only varied by a few minutes, and that was probably caused by what I was doing on the computer during at that time. (or normal Boinc behavior) As you can see here, not realy much variation in workunit times, apart from those fast running workunits :) ____________ Down with the Kredit Kops!!! | |
ID: 1374 | Rating: 0 | rate: / Reply Quote | |
Message boards : Graphics cards (GPUs) : A bit overeager scheduler