Message boards : Number crunching : GPUGrid WU slowing down considerably when running other WU on all cores
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I have just started running this project yesterday. This is my config: | |
ID: 5365 | Rating: 0 | rate: / Reply Quote | |
Wow, wow, don't all answer my questions together. Give me some time to read the first replies. [/cynical mode] | |
ID: 5380 | Rating: 0 | rate: / Reply Quote | |
Hi, this is well reported in other threads. | |
ID: 5381 | Rating: 0 | rate: / Reply Quote | |
Under Linux, it does not happen. We are trying to improve it under Windows. It has happened to me under Linux, using Ubuntu 8.10. Generally Linux uses only 3-4% of a CPU when running 4CPU +1GPU, however, there has been a few occasions recently where I have had to run it 3 + 1. It only seemed to happen when running some of the "shorter" 'USPME type' (1887 credits) WUs, where it was using 12%+ of a CPU. But, as you say, the Windoze App still requires its own dedicated CPU to be most effective. | |
ID: 5382 | Rating: 0 | rate: / Reply Quote | |
Thanks for the answers :) | |
ID: 5383 | Rating: 0 | rate: / Reply Quote | |
I have an AMD 64 X2 6000 running @ 3.127 Ghz and a dual XFX 9600 GSO running under Windos Vista 32 bit and it has the same problem. When CUDA is operating by itself on both vid cards it runs great, however when other BOINC apps work together the whole process slows down. The resources show (0.03 CPU, 1 CUDA) for each of the vid cards. It takes them between 8 and 35 hours (depending on the work unit) to complete the work unit. | |
ID: 5920 | Rating: 0 | rate: / Reply Quote | |
Does it also happen now with application 6.61? | |
ID: 5944 | Rating: 0 | rate: / Reply Quote | |
Yes, it continues to happen under 6.61. I must say that it only started a couple of days ago. | |
ID: 5977 | Rating: 0 | rate: / Reply Quote | |
I see similar on my GT9600 / AMD 9850 BE quad | |
ID: 6385 | Rating: 0 | rate: / Reply Quote | |
I see similar on my GT9600 / AMD 9850 BE quad Um, the issue is that the GPU, I think, from the number is on the low end of the spectrum. If the memory is also low this will make things slower. In essence, the GPU can do only so much work and the slower the GPU the less it can do ... my 9800 GT desktop is slightly slower while running but I also have 1G memory on it so I have less of an issue there ... but the system is slower and less responsive than the ones with the GTX 280 or GTX 295 ... You will also see similar issues with SaH ... Many suspend GPU processing when doing other work ... As far as automatic suspend I am sure that will come in time, but, this is early days ... I mean, how long has it been since the introduction of GPU computing? 6 months? We are in early days ... We still don't have a BOINC Manager that manages the GPU as well as the CPU ... I know that is cold comfort ... but, it would be like having a 1MHz 286 and being unhappy that it is not as fast in doing tasks as an i7 or Xeon CPU ... | |
ID: 6386 | Rating: 0 | rate: / Reply Quote | |
Yes i am just stating that its a common issue and i think 512 Mb on the card is enough second my card is overclocked by the maker. | |
ID: 6420 | Rating: 0 | rate: / Reply Quote | |
Still when ABC or any other projects starts the timers stop also so it show 00:00:01 after 20 minutes work... I am not sure I understand what you are saying in the first part. That if you try to run any CPU project along with a GPU project that the CPU project seems to stay paused? OR that the display just does not update? There are problems with both the BOINC Manager 6.6.3 and 6.6.4 versions ... one stops getting work after it screws up the LTD calculations and 6.6.4 does not seem to be able to request work from some projects. I looked at the one task you completed and though the total run time is long it "looks" reasonable to me in both total time and in the step time ... | |
ID: 6423 | Rating: 0 | rate: / Reply Quote | |
Message boards : Number crunching : GPUGrid WU slowing down considerably when running other WU on all cores