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TJ
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Message 28594 - Posted: 18 Feb 2013 | 14:37:18 UTC

I have Nathan WU's, short run (cuda 3.1) on a GTX285, driver 310.90 and takes about 16000-17000 seconds to complete.
Another Nathan WU (same type) also short run (cuda 3.1) on a GTX550Ti , driver 306.97 takes about 41600 seconds to complete.

I know the GTX285 is a better card than the newer GTX550Ti but I didn't expect this difference. Moreover as with Einstein@home (cuda) run time is almost the same.
Could this be the result of the driver?

The GTX550Ti did the beta's just within an hour.
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Message 28595 - Posted: 18 Feb 2013 | 15:58:50 UTC

The 41xxx secs sounds ways too long. But you hide your systems so i cant look into you general Stats.
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Message 28596 - Posted: 18 Feb 2013 | 16:22:58 UTC

I think it is because of Compute Capability thus the GTX 285 can be fully used by GPUGRID while the GTX 550Ti can't... Correct me if I'm wrong.
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Message 28605 - Posted: 18 Feb 2013 | 23:23:53 UTC - in response to Message 28596.
Last modified: 18 Feb 2013 | 23:24:43 UTC

The 4.2app is about twice as fast as the 3.1app on a GTX550Ti.
Don't use the 3.1app on a GTX550Ti; run WU's on the 4.2app.

For the GTX285 the 3.1app is faster - it being an older card, relying on older code.
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Message 28635 - Posted: 20 Feb 2013 | 14:22:38 UTC - in response to Message 28605.

The 4.2app is about twice as fast as the 3.1app on a GTX550Ti.
Don't use the 3.1app on a GTX550Ti; run WU's on the 4.2app.

For the GTX285 the 3.1app is faster - it being an older card, relying on older code.


Thanks for your response skgiven.

I followed your advice and have for that pc set to accept beta and cuda 4.2.
This has resulted in the following messages:
20/02/2013 15:03:23 GPUGRID Requesting new tasks for CPU and GPU
20/02/2013 15:03:24 GPUGRID Scheduler request completed: got 0 new tasks
20/02/2013 15:03:24 GPUGRID Message from server: No tasks sent
20/02/2013 15:03:24 GPUGRID Message from server: No tasks are available for Short runs (2-3 hours on fastest card)
20/02/2013 15:03:24 GPUGRID Message from server: No tasks are available for ACEMD beta version
20/02/2013 15:03:24 GPUGRID Message from server: No tasks are available for the applications you have selected.

Is this due to the 306.97 driver?
It runs Einstein@home without any issues as well GPUGRID, with good system response.
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Message 28638 - Posted: 20 Feb 2013 | 15:35:29 UTC - in response to Message 28635.

The 4.2app is about twice as fast as the 3.1app on a GTX550Ti.
Don't use the 3.1app on a GTX550Ti; run WU's on the 4.2app.

For the GTX285 the 3.1app is faster - it being an older card, relying on older code.


Thanks for your response skgiven.

I followed your advice and have for that pc set to accept beta and cuda 4.2.
This has resulted in the following messages:
20/02/2013 15:03:23 GPUGRID Requesting new tasks for CPU and GPU
20/02/2013 15:03:24 GPUGRID Scheduler request completed: got 0 new tasks
20/02/2013 15:03:24 GPUGRID Message from server: No tasks sent
20/02/2013 15:03:24 GPUGRID Message from server: No tasks are available for Short runs (2-3 hours on fastest card)
20/02/2013 15:03:24 GPUGRID Message from server: No tasks are available for ACEMD beta version
20/02/2013 15:03:24 GPUGRID Message from server: No tasks are available for the applications you have selected.

Is this due to the 306.97 driver?
It runs Einstein@home without any issues as well GPUGRID, with good system response.


No, it's not a driver issue. It's a short queue issue. I get the same reported when trying to fetch from the short 4.2 queue. Server status says plenty of tasks but it's lying so don't trust it.
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Message 28639 - Posted: 20 Feb 2013 | 18:52:19 UTC - in response to Message 28638.

No, it's not a driver issue. It's a short queue issue. I get the same reported when trying to fetch from the short 4.2 queue. Server status says plenty of tasks but it's lying so don't trust it.


That's weird. I will make a new thread then and see if we get helpful responses.

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Message 28654 - Posted: 21 Feb 2013 | 16:04:35 UTC
Last modified: 21 Feb 2013 | 16:05:02 UTC

It could be driver issue, as I have now updated to nVidia 314.07, I got a cuda42 short run for the GTX550Ti.
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Message 28669 - Posted: 22 Feb 2013 | 8:35:43 UTC

The cuda42 short runs, run happily on my 550TI in 25xxx seconds, compared to 46xxx seconds for cuda31 WU's.
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Message boards : Number crunching : Driver difference?

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