2 cuda questions?

Is there any diagnostic utility that can verify proper cuda card operation and maybe provide benchmarks?

The second question is about app_info.xml. Is there anything to be gained by modifying the strings: <avg_ncpus>0.040000</avg_ncpus>
<max_ncpus>0.040000</max_ncpus>

Curiosity doesn't always kill the kat!

Thanks

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Is there any diagnostic utility that can verify proper cuda card operation and maybe provide benchmarks?

The second question is about app_info.xml. Is there anything to be gained by modifying the strings: <avg_ncpus>0.040000</avg_ncpus>
<max_ncpus>0.040000</max_ncpus>

Curiosity doesn't always kill the kat!

Thanks

There is a program called Memtestg80 which is. Memory tester, unfortunately it doesn't do proper benchmarks.

As for the <avg_ncpus> and <max_ncpus> they are for BOINC to work out how much CPU to allow when scheduling tasks to run. It doesn't limit them in any way, they can use more or less CPU. In this case we are saying the app uses an average of 4% CPU and a maximum of 4%.

Is there any diagnostic utility that can verify proper cuda card operation and maybe provide benchmarks?

The second question is about app_info.xml. Is there anything to be gained by modifying the strings: <avg_ncpus>0.040000</avg_ncpus>
<max_ncpus>0.040000</max_ncpus>


Thanks

There is a program called Memtestg80 which is. Memory tester, unfortunately it doesn't do proper benchmarks.

As for the <avg_ncpus> and <max_ncpus> they are for BOINC to work out how much CPU to allow when scheduling tasks to run. It doesn't limit them in any way, they can use more or less CPU. In this case we are saying the app uses an average of 4% CPU and a maximum of 4%.

I just installed an EVGA GTX 560, the SuperClocked (850MHz) version so I'm keeping an eye on this thread.
My GTS 450 and Phenom 9650 have been holding around the 13000 RAC mark so something seems not right. .
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</Tazz>

This one ran fine for about a year and began to slow down about a month ago. The time on some work units is great, 2 to 15 minutes but others take nearly 2 hours.
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Have a go with this http://www.evga.com/precision/
I use it to see what my cards are up to and tweak them a bit.
Getting over 15k on a single GTX 560 without any overclocking.


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Re: EVGA Precision below (or above)

Oh, I forgot to mention. It's free, but you have to register to download it.

It seems to work fine on any Fermi card.

You can use Tthrottle from eFMer if you want to stop you GPUs from cooking.
Team that up with Boinc Tasks from same place to manage a bunch of PCs as one.
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This one ran fine for about a year and began to slow down about a month ago. The time on some work units is great, 2 to 15 minutes but others take nearly 2 hours.

It looks like several, if not all, of the tasks that are running hours are coming up inconclusive as well.

I am suffering from interference on some of my PCs especially the single 560 one. It's called my GF using it for Facebook Games and snoozing Boinc all the time Grrr
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Have a go with this http://www.evga.com/precision/
I use it to see what my cards are up to and tweak them a bit.
Getting over 15k on a single GTX 560 without any overclocking.

Hate to say this, but I have a single GTX-560 doing over 22k by itself and my GTX-460 is running 16k.

I use MSI Afterburner to monitor my cards.
http://event.msi.com/vga/afterburner/download.htm

You could try SIV by RED RAY
I use it for gpu overclocking and it benches cpu great but I don't think that gpu benchtest has been implimented yet.

http://rh-software.com/

The command line as admin is siv32x -GPUCTL or siv64x -GPUCTL
It will also control fan speed
Best of all SIV will autoretry BOINC connections and set GPU tasks to above normal priority


Give it a try
RED RAY is also a member of Seti and is a really good chap.
He will help you

Michael Miles
The Assimilators
Phenom 2 1100T @ 4.0
Zotac 460GTX at 850 core 1700 shader 1900 mem

I ran memtestg80 and memtestcl along with GPU-Z on an EVGA GTX 560 I suspected of having a problem. Watching each utility run I see a dramatic slow down in shader clock speed and a large decrease in GPU load after a couple of hundred iterations. The shader clock drops from 1701 MHZ to around 101 MHZ and GPU load drops from ~99% to about 30%. At the end of each utility the log says no errors found. Should I suspect a problem with the card or drivers or a problem elsewhere?

This one ran fine for about a year and began to slow down about a month ago. The time on some work units is great, 2 to 15 minutes but others take nearly 2 hours.

It looks like several, if not all, of the tasks that are running hours are coming up inconclusive as well.

I had a similar issue with a 560TI. It was working OK for several months and then just started to fail. Ive found that raising the voltages stopped the downclocks but anyway it was throwing a lot of invalids.

Ive tested them with each testing tool Ive found, Ive changed PSU, Ive changed the slots, Ive cleaned the fans, and while everything said it was working ok, still, around a 30% of WUs become inconclusive and then invalid. I had even downclocked it to see if that solved the issue but no luck...

And suddenly Ive realized that I did not tested it downclocking only the memory... 20 mhz less than the stock value fixed all my problems (and it works even with the cores overclocked). Im using MSI afterburner for that, it's free, it works for GPUs from any vendor (mines are Zotac) and you dont need to register to get it...

Im not sure that this is going to fix your GPU, but it may help to diagnose it...

[/quote]

You didn't say anything about heat. They will downclock if they get too hot.

I suspect your problem is the driver.

You might want to upgrade to the 304.79 driver. There is a NVIDIA driver that's known to have a bug that downclocks some overclocked cards, you can read about it on NVIDIA's website, but I'm almost certain that I'm remembering correctly and you are using that one.

Beyond that, I just flashed the BIOS on a Gigabyte 560Ti OC 900MHz model after it trashed several thousand WUs (every few seconds) with -9 errors while it was downclocked and running cold. You might want to look for a BIOS update.

After the BIOS flash the "default" voltage is reset up by 1/3v *and* the card is running cooler at full factory overclock than it was at NVIDIA reference clocks, which I don't understand at all, but it is what it is. (apparently in my card's case this has something to do with two manufacturers of RAM, but there was no thorough explanation on Gigabyte's website)
[/quote]


Do the Bios updates come from nVidia or the card vendor? I'll try the updates.
mine are 301.42

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I've caught 2 cards down clocking in the last few days. The EVGA GTX560 was apparently doing it as well. It was replaced with a new old stock GTX 470 and it down clocks too and I am using MSI Afterburner to lower the GPU and Memory clocks and tweak up the fan. The second machine card is an Asus GTX 560Ti. Same problems. The driver for both is 301.42. I have tried the EVGA Precision also and it is pretty much the same software with a different skin. It will allow me to adjust voltage. I am locked out of that function in Afterburner.

In the host in which 2 different GPUs are downclocking it could be an issue with the PSU getting old... I doubt about it being the drivers as im using that same drivers on several different GPUs and im not having any downclocking... (but, YMMV).

I installed the 304.79 (beta)drivers and so far all looks stable. I guess I'll know in the morning! The cards are in 2 different machines. Both are Win XP x64 sp2 and both motherboards are Intel. The only difference is one is a D725 and the other is a D775. The processors in both are Intel P4 LGA775 3.8GHZ HT. The D725 has the PNY GTX470 and 4GB of ram and the D775 has a factory overclocked Asus GTX560Ti and 8GB ram.
GTX560Ti speeds are: GPU 900, Shaders 1800 and memory 1050
GTX470 speeds are: GPU 608, Shaders 1215 and memory 837
The number of shader cores are 384 and 448 respectively
The EVGA GTX560 is sitting on a shelf for now
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