1) Message boards : Number crunching : Seti@Home Cuda Sluggishness (Message 863722) Posted 9 Feb 2009 by HeatSurge Post: I did not see where this question was asked...... Were you running seti CUDA at the same time? You should not run graphics intensive apps and seti CUDA at the same time. It wasn't asked - I was just reporting that I changed my drivers and 177.92 seems a bit faster for me. Left4dead stuttering was the reason for change, and no I wasn't running CUDA while playing - 180 drivers are just buggy for l4d with multicore rendering enabled... I realize it's a bit off-topic sorry. BTW I'm currently out of Cuda workunits (only 1 "astropulse" is computing) so can't really report further if reverting drivers to 177.92 helped the overall sluggishness much if any.

2) Message boards : Number crunching : Seti@Home Cuda Sluggishness (Message 863384) Posted 8 Feb 2009 by HeatSurge Post: Hm... Weird. I "downgraded" from drivers 181.22, because I CANNOT play left 4 dead with them. The game was stuttering heavily and crashing (after random periods, sometimes 10 minutes sometimes 2 hours) before I disabled "multicore rendering." Disabling that solved the stuttering, but the crashes remained. They were some pretty weird crashes too - the monitor would suddenly go to a solid (primary/screen average at time of the crash) color and the last 1/4 seconds of sound would loop. The hard drive would grind for 5 seconds and then stop. The sound would continue looping. Only way out, hard reset. No response from ctrl+alt+del and then alt+u+r... Then, the weirdness - my system would reset continuously after soft-reset. It wouldn't even go to the bios screen just reset, reset, reset every second. The screen - flashing... only way out - hard turn off and then turn on with holding the power button. I'd be inclined to think it's a lack of power problem, but my PSU is 620W and high-quality (Corsair HX620), and I'm drawing less than 300W at both CPU and GPU 100% loaded at the wall per my lame socket-plug watt meter... AND also I've been running left 4 dead 100% A-OK with 177.92 (my previous "preferred" set which also doesn't mess up AA on Battlefield 2142... lol). So anyway, after downgrading to 177.92, I had some lesser sluggishness this morning, and now it's perfectly fine. Then again, this might be due to different types of workunits so IDK. My computer is definitely not slow... Opteron 170 at 2.7Ghz. The ram (2GB) is also running 1:1 with the processor FSB so quite fast. The GTX 260 Core 216 is running at 679/1464/1080 at 24/7, both are 100% stable under continuous 100% load... so it's probably either the drivers, workunits or a combination of both. I'm going to continue to suspend for games nevertheless :-/ I hope nvidia sorts out their problems with drivers 180 and left 4 dead. Keep up the good work on Seti@home and Boinc ;-)

3) Message boards : Number crunching : Seti@Home Cuda Sluggishness (Message 863383) Posted 8 Feb 2009 by HeatSurge Post: Double post...

4) Message boards : Number crunching : Seti@Home Cuda Sluggishness (Message 863112) Posted 7 Feb 2009 by HeatSurge Post: Anyway, seti app that uses CUDA should be shutdown only when you play a 3D game. I don't know about you, but when Boinc does Seti (Cuda Enhanced), I can see the way windows and lines are drawn in windows explorer, etc. It's quite interesting actually, were it not for the fact that I have to wait for 10 seconds for a window to be drawn line by line when there's lists. In short, it's completely unusable (way too slow). BTW I have a single GTX 260 Core 216 (older/bigger nm core can't remember how much). Sometimes throughout the workunits it seems like there are "bursts" of responsiveness i.e. sometimes the system starts drawing windows faster, but most of the time there's annoying lag. Even as I'm typing this, there is lag between the keypresses and when the letters appear. Currently, I have to go in Boinc and manually suspend all Cuda workunits every time I get on my PC. Needless to say, it is very rapidly getting on my nerves...

5) Message boards : Number crunching : Seti@Home Cuda Sluggishness (Message 862383) Posted 5 Feb 2009 by HeatSurge Post: Try solution from this post: http://lunatics.kwsn.net/gpu-crunching/ak-v8-cuda-mb-team-work-mod.msg13810.html#msg13810 I have no problems whatsoever with CPU performance. Having everything on low (default behavior for Boinc) has allowed me to flawlessly play games, encode video/audio etc. while using the idle clock cycles (if any) for projects. The sluggishness issue is isolated to GPU. Thanks for opening the Trac ticket. I hope the simple system tray right-click-toggle is implemented sooner than in "a few months." It should be quite simple, really... no reason to delay it that much imo.

6) Message boards : Number crunching : Seti@Home Cuda Sluggishness (Message 861549) Posted 3 Feb 2009 by HeatSurge Post: I was just wondering if it's "in progress" or at least "under consideration" but I would like the coders to find a way to prioritize the CUDA-accelerated applications to something equivalent to the CPU's "low priority." Is this something possible with the current Nvidia drivers or does it require coding from Nvidia? My problem is that I just started computing my first CUDA workunits today and my computer (desktop, even as I am typing this) is just laggy and sluggish. I was playing some Team Fortress 2 and I was getting terrible framerates (15fps etc.). The thing is, I run Boinc on various projects in the background all the time on low priority and my games and computing have so far been unaffected, probably because of the wonderful instruction prioritizing for CPUs that's been built into windows XP. However, there seems to be a problem with prioritizing (or there is no prioritizing?) with CUDA so running CUDA kills performance completely. Sure, it's blazing fast, but I'll have to turn it off when I'm using my computer sadly. This brings me to an alternate request. If it's too much work, not possible without new Nvidia drivers, or there's another problem, can you please pressure Boinc to include a simple toggle for "use CUDA" in the system tray right-click menu? This way I can turn off CUDA when I use my computer and/or play games and whatnot, while CPU projects continue to flawlessly run on low as they have heretofore done.

 
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