Posts by wynx

1) Questions and Answers : Unix/Linux : Low GPU usage in Ubuntu (Message 2875) Posted 11 Mar 2012 by wynx Post: *Update; When using the new proprietary drivers from AMD (ATI), version 12.2, cpu usage drops drastically. Before: http://moowrap.net/result.php?resultid=9297556 After: http://moowrap.net/result.php?resultid=9390083 Even though still the cpu-priority of gpu tasks seems to be equal to my other cpu projects and therefore I need to leave one cpu core emtpy. Also note that the gpu is fastest at Core #0 setting (one might expect #3) Edit: I also see the application is using dnetc518-linux-x86-stream instead of dnetc518-linux-amd64-stream in this case. I've checked with benchmarks, there is no performance difference and both benches run at low cpu usage. I guess there are different tasks which autoselect their application? (x86 vs amd64)
2) Questions and Answers : Unix/Linux : Low GPU usage in Ubuntu (Message 2088) Posted 4 Jan 2012 by wynx Post: Hmm, I've got ubuntu 11.10 too, but only with one hd5750. I've noticed that under linux the gpu process takes up a lot of cpu cycles as well. So it might be possible that your cpu tasks get in the way of the gpu task(s). Try limiting the cpu work in order to free a core or multiple cores if you have multiple gpu tasks (i'm unsure about this because I have no multi gpu setup). Good luck :)
3) Message boards : Number crunching : Loss of broadband gave faster Moo! crunching??? (Message 1317) Posted 2 Nov 2011 by wynx Post: I'd guess the performance differences you observe are not so much related to not having internet access, as to the changed workload of the system by projects running out of work. Try playing with (temporarily) disabling some cpu projects to see what it does. Also try changing the [processor-usage] priority from 4 to 9 in dnetc-1.00.ini Maybe you can also update your ati drivers (11.10 is newest atm).
4) Message boards : Number crunching : Experimental ATI GPU Setup 5870 + 4850 (Message 1302) Posted 1 Nov 2011 by wynx Post: I tried to get an HD5850 and an HD4850 running on the same PC about a year ago and never succeeded. I just could not get BOINC to recognise the HD4850. The HD5850 was in the primary graphics slot. I tried to move the GPUs around and only got the HD5850 recognised. One problem is that graphic drivers get activated only when the graphics adapter is used. This means that when no monitor is attached, the system (BOINC) will not recognize the card. The easiest way to fix this is to fake a monitor with a dummy plug. Read more here; http://forums.bit-tech.net/showthread.php?t=167450 I think it should be possible to get both cards recognized in 1 boinc instance. Although I'm not sure about performance...
5) Message boards : Number crunching : Donations (Message 1240) Posted 24 Oct 2011 by wynx Post: Just donated $10,- (poor student ;)), I just switched from DNETC to here, keep up the good work Teemu!