Forum > GPU crunching

AK V8 + CUDA MB team work mod

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Raistmer:
hm... don't know about screen, maybe... It resemble driver restart under Vista, but AFAIK WinXP can't restart video-driver.
[offtopic]
It seems Windows slowly come to some features that more advanced OSes like QNX had few decades already. First was RDP (although not sure that RDP could be treated like native multi-node even now). Now driver restarts...
[/offtopic]

And about CUDA on x64 - I have CUDA MB hang time to time on my Win2003 x64 host. Suspending task helps (for now). I had no hung tasks on Vista x86.

Devaster:
on x64 WS2k8 no hangs too ...

cyclejon:
I'm not having any troubles with vista x64, drivers are 181.21

Raistmer:
both Win2008 and Vista are next Windows generation while Win2003 and XP belongs to the same generation...

Stelminator:

--- Quote from: Stelminator on 08 Feb 2009, 06:42:34 pm ---just wanted to mention, Windows 7 is less than useful for this trick.

I ran this on Windows 7 64bit.  Definitely stupid.  The drivers are old, 179.23 (GPUZ ftw).  From other threads, I assume 180 or something higher is required for this to function properly.  (I figured that out after I realized something was wrong).

That said, I believe the teamwork algorithm was working superbly.  Other than the fact that every CUDA WU errored out almost immediately, there were exactly the right number of tasks for my i7 system; 9 total, with 8 maxing the CPU, and one more only stealing part of 1 cpu long enough to do setup or teardown.  No idea how much it would use while functioning, because they all died quickly.  Also, 2 of the cpu tasks were AP's.

Here's hoping BOINC will fix the scheduling sooner rather than later, or Nvidia will release new drivers for me.  Unfortunately, there's no way I'm going back to Vista.  Win7 is "Vista, done right", imo.

if/when there are drivers that will let this work, is there any chance of a SSE4.1 build?  On that note, I haven't been able to find what the speed difference for SSE4.1 vs SSSE3, SSE3, and so forth are, nor anything regarding if SSE4.2 provides anything useful to the project.  If/when I'm able, I'll certainly experiment to see if 8x SSSE3 on i7 + 1x 9400 GT is faster than just 8x SSE4.1.

Great job and thank you!

--- End quote ---

Now running the current 8a set from the first post in this thread.
http://setiathome.berkeley.edu/show_host_detail.php?hostid=4789529

Just wanted to follow up:

I installed the latest drivers for Vista on my Win7 system, they work great.  i7 is now crunching along on 8 virtual cores + 1 GPU.  I haven't benchmarked anything, but my anecdotal report is that this SSSE3 build completes MB WUs faster than the 4.1 build on the main page.  In addition, I now have the GPU running, which is nearly twice as slow as one CPU thread, but surely makes up for any loss of speed on the CPU (though I still think it is a gain and not a loss).

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