1) Questions and Answers : GPU applications : Seti cuda not suspending, PC extremely sluggish (Message 887551) Posted 23 Apr 2009 by Duncan Blues Post: the official stance on this is to only use CUDA when you're not using the computer. Since you have that option and a fix for VLAR is difficult or far off, best start using it. The default preference is now also set to use the GPU only when the computer is idle. The problem I am having is, that the PC is starting to work on a CUDA work unit while it is idle. Then I come back to the PC and the BOINC manager claims that all work is suspended but often, it is in fact not suspended on the CUDA wu. The progress percentage keeps going up and the PC is awfully sluggish. The only possible solutions for me right now are a) manually shut down Boinc when I come back to the PC and notice it's being sluggish (and hopefully not forget to restart it when I leave the comp again) b) disable CUDA altogether (I'm currently using Boinc 6.6.23, no improvement compared to 6.6.20) Right now, I'm hanging in there and using option a), hoping for a solution to pop up.

2) Questions and Answers : GPU applications : Seti cuda not suspending, PC extremely sluggish (Message 885330) Posted 14 Apr 2009 by Duncan Blues Post: Any clue why some of the CUDA WU's still defy the order to suspend themselves?

3) Questions and Answers : GPU applications : Seti cuda not suspending, PC extremely sluggish (Message 883911) Posted 10 Apr 2009 by Duncan Blues Post: I've been running BOINC manager 6.6.20 for a few days now and I have to report that situation has not significantly improved. Sometimes the work units do get suspended properly but sometimes the CUDA app is totally unfazed and continues to number-crunch along after I come back to the PC. If that happens, the PC is still downright unusable until I manually end the Boinc manager along with all apps.

4) Questions and Answers : GPU applications : Seti cuda not suspending, PC extremely sluggish (Message 882700) Posted 6 Apr 2009 by Duncan Blues Post: Thank you for your reply. My bad, I was talking about the latest recommended v6.4.7 version of the manager, sorry for not including the version number. I've just installed the v6.6.20 and will keep you updated if the problem persists.

5) Questions and Answers : GPU applications : Seti cuda not suspending, PC extremely sluggish (Message 882682) Posted 6 Apr 2009 by Duncan Blues Post: For some reason, my running Seti cuda workunits often do not suspend when I resume using the PC (more often than not) even though the Boinc manager says that the work is suspended due to user activity. The progress percentage of the cuda workunit shown in Boinc manager continues to rise while the others I have running like climate prediction or rosetta do stop like they should. Whenever this happens, the PC is being extremely sluggish. Changing between application windows takes several seconds, the mouse pointer is getting jumpy and even typing text is being slow. I've configured the Boinc manager to not hold the calculation apps in memory while the user is active but whenever the problem occurs, the Seti process and often also the other apps too do remain loaded (shown in task manager). I have the latest Boinc manager and also the latest nVidia driver 182.50, video card is a geForce 9800 GT with 512 MB RAM, OS is XP Pro SP3 with all patches applied. PC is an Intel Q8200 with 4 GB RAM. System is properly cooled and not overclocked. Boinc is configured to use 50% of the CPUs (i.e. 2 cores) and 50% of CPU time. The system is becoming responsive again a couple of seconds after I end Boinc manager and tell it to also stop running apps or as soon as the current cuda workunit has finished. Even if I select the cuda app that is running despite user activity and manually suspend the task, it keeps running. I never had this kind of problem with the non-cuda Seti apps.

 
©2024 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.