Posts by blueviking


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1) Message boards : Number crunching : Why is BOINC not using both of my Nvidia GPU's? (Message 1312660)
Posted 620 days ago by Profile blueviking
I did this, and now it appears to be working (fine?). It recognizes both GPU's and gave them both a CUDA task to process.

The odd thing is that these are the same two, identical video cards that I've been running in my machine for almost 3 years now, and I don't think I've ever encountered this problem in the past... and obviously something is wrong with BOINC, because it's reading that first card as having over 8 Terabytes of memory available (wouldn't it be great to have a video card with TERAbytes of memory?).

Anyway, thanks for the fix!

From older posts that I used to correct this on my computer:

If you have to create it you need to add the following exactly as shown:

<cc_config>
<options>
<use_all_gpus>1</use_all_gpus>
</options>
</cc_config>

If you will notice, the two cards are not recognized at being identical, hence the problem.

2) Message boards : Number crunching : Why is BOINC not using both of my Nvidia GPU's? (Message 1312646)
Posted 620 days ago by Profile blueviking
Ever since the "reboot" a few days ago, when SAH came back online again after the week or so of absence, my BOINC manager shows me that only one of my GPU's is being used. This is the message when I start up the BOINC manager:

NVIDIA GPU 0: GeForce GTX 260 (driver version 306.97, CUDA version 5.0, compute capability 1.3, 896MB, 8381200MB available, 875 GFLOPS peak)
NVIDIA GPU 1 (not used): GeForce GTX 260 (driver version 306.97, CUDA version 5.0, compute capability 1.3, 896MB, 802MB available, 875 GFLOPS peak)

So, for some reason it appears that my second video card is not being used. I don't think I had a problem BEFORE the outage a week ago, but I can't be certain. Is it possible that something happened with BOINC, or the SETI servers, during the outage, so that my second GPU is not being used now? Or, maybe it's a problem with one of my video cards? I have re-booted a few times, and re-started BOINC manager a few times to see if it would fix the problem, but to no avail.

Any help will be appreciated.
3) Message boards : Number crunching : BOINC 7.0.28 is now the RECOMMENDED version for Windows, Mac and Linux. (Message 1258326)
Posted 771 days ago by Profile blueviking
Is BOINC asking for CPU work? As long as BOINC is asking for both CPU and GPU work, Scheduler will fill the request for the most capable device. Thus, trick is to get BOINC to temporarily stop asking for GPU work. Easiest way is to turn it off in Project preferences on website. That will be sent to BOINC on next update, and you'll see a line "don't fetch Nvidia GPU tasks" on your project properties in BOINC. When you get enough cpu work, turn gpu fetch back on.


It is asking for both, but only gets cuda tasks. I increased my minimum buffer (from 0) and will try to stop the GPU fetch for a bit to see if that helps. Thanks.
4) Message boards : Number crunching : BOINC 7.0.28 is now the RECOMMENDED version for Windows, Mac and Linux. (Message 1258255)
Posted 771 days ago by Profile blueviking
Been running 7.0.28 on Windoze 7 (64-bit) for a few days now with no problems... HOWEVER, I've got an i7 machine that seems to only want to download CUDA tasks. That's fine and dandy for my two cuda cards, but the 8 cores in my CPU are just sitting there twiddling their thumbs. I have other machines downloading non-cuda tasks... anyone have any idea why my workhorse isn't getting any?


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