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Patch for GPU application's CPU utilization
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Author | Message |
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Send message Joined: 30 Aug 07 Posts: 2046 Credit: 26,480 RAC: 0 |
I applied a patch which should hopefully fix the CPU utilization of the GPU applications, which was causing some users problems with running the CPU app alongside the GPU app. Let me know how it works. |
Send message Joined: 14 Feb 09 Posts: 999 Credit: 74,932,619 RAC: 0 |
It looks like it might have fixed the anonymous problem as well, will have to wait and see when there are actual tasks to send out. [edit] Nope, same problem. Message from server: No work sent |
Send message Joined: 30 Aug 07 Posts: 2046 Credit: 26,480 RAC: 0 |
It looks like it might have fixed the anonymous problem as well, will have to wait and see when there are actual tasks to send out. What exactly is the anonymous problem? Are you trying to use an optimized CPU app alongside the server GPU app? |
Send message Joined: 17 Feb 08 Posts: 363 Credit: 258,227,990 RAC: 0 |
It looks like it might have fixed the anonymous problem as well, will have to wait and see when there are actual tasks to send out. The problem is that if your're using the ATI app on anonymous platform and have the following selected in the project prefs: Use CPU You will not get work at all. Join Support science! Joinc Team BOINC United now! |
Send message Joined: 30 Aug 07 Posts: 2046 Credit: 26,480 RAC: 0 |
It looks like it might have fixed the anonymous problem as well, will have to wait and see when there are actual tasks to send out. Well that's an interesting one, I'll see if I can get the boinc lists to help me fix it :P It's so much nicer being able to do updates myself, lol. |
Send message Joined: 17 Feb 08 Posts: 363 Credit: 258,227,990 RAC: 0 |
It looks like it might have fixed the anonymous problem as well, will have to wait and see when there are actual tasks to send out. Isn't there anything in the server logs that shows some more info about why the client get's the "Message from server: No work sent" ??? Join Support science! Joinc Team BOINC United now! |
Send message Joined: 30 Aug 07 Posts: 2046 Credit: 26,480 RAC: 0 |
It looks like it might have fixed the anonymous problem as well, will have to wait and see when there are actual tasks to send out. Nope, but from what I hear initially from the message boards it's because anonymous apps are assumed to be for CPUs. |
Send message Joined: 16 Mar 09 Posts: 58 Credit: 1,129,612 RAC: 0 |
Nope, but from what I hear initially from the message boards it's because anonymous apps are assumed to be for CPUs. on Collatz they do not have this problem. Maybe Slicker can help here! |
Send message Joined: 14 Dec 09 Posts: 161 Credit: 589,318,064 RAC: 0 |
It's working for me. After the patch, the cpu usage dropped from 0.87 to 0.05 for gpu app and wus takes 2 seconds longer than the 0.87 cpu usage. Performance effected? I was just about to ask that whether if 1.00 cpu utilization per gpu core is possible, lol. |
Send message Joined: 14 Feb 09 Posts: 999 Credit: 74,932,619 RAC: 0 |
For me, I use a app_info because I use the command line option b-1 {setting GPU polling behaviour: busy wait (fastest, potentially high CPU load)}. It speeds up the app on my card by about 45 seconds or so. Without: 4:50 With: 4:06 |
Send message Joined: 4 Jul 09 Posts: 2 Credit: 873,494 RAC: 0 |
I am still having a problem in that the time allowed to process a work unit is greater than the "deadline". Example: Expected work time = 42 hours, time to deadline = 36 hours. It is impossible to process. Why not give more time such as an extra week or so. Thanks. |
Send message Joined: 12 Nov 07 Posts: 2425 Credit: 524,164 RAC: 0 |
I am still having a problem in that the time allowed to process a work unit is greater than the "deadline". It is a week now. The 3 day ones are the older series of wus. Doesn't expecting the unexpected make the unexpected the expected? If it makes sense, DON'T do it. |
Send message Joined: 25 Jan 10 Posts: 2 Credit: 3,848 RAC: 0 |
How do i know that the GPU besides the core CPUs is/are being used in processing WU? |
Send message Joined: 12 Nov 07 Posts: 2425 Credit: 524,164 RAC: 0 |
How do i know that the GPU besides the core CPUs is/are being used in processing WU? One easy way is if the wu's are taking a few minutes to complete instead of hours. Looking at your current computers you don't have a recognized gpu. You need a double recision gpu for this project. Here is a list of usable gpus: http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=1505 Doesn't expecting the unexpected make the unexpected the expected? If it makes sense, DON'T do it. |
Send message Joined: 25 Jan 10 Posts: 2 Credit: 3,848 RAC: 0 |
I'm running BOINC from my laptops and this particular one has AMD M8806 with ATI Radeon HD4200 for the display adapters. Then i guess this version of BOINC does not support the GPUs on my machine since its not listed in the links your provided right? Thanks. |
Send message Joined: 26 Jul 08 Posts: 627 Credit: 94,940,203 RAC: 0 |
I'm running BOINC from my laptops and this particular one has AMD M8806 with ATI Radeon HD4200 for the display adapters. Then i guess this version of BOINC does not support the GPUs on my machine since its not listed in the links your provided right? Thanks. Your BOINC version (6.10.18) supports ATI GPUs. But you need to install a newer driver. Getting new drivers for notebooks can be a problem, you may need to use the Mobility Modder to get the latest Catalyst installed. If you do that, BOINC should recognize the ATI HD4200. But unfortunately it is not supported by Milkyway, as it is not able to do double precision calculations. But it would run the Collatz Conjecture project (and probably the upcoming PrimeGrid AP26 application, too). A HD4200 isn't stunningly fast, but 2000 credits a day may be possible (don't know the clock of the notebook version). |
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