Problem of misassignment of cuda4.2 vs cuda3.1 tasks

Message boards : Number crunching : Problem of misassignment of cuda4.2 vs cuda3.1 tasks
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Mark Henderson

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Message 26158 - Posted: 4 Jul 2012, 16:40:23 UTC

Did you try a project reset?
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Message 26159 - Posted: 4 Jul 2012, 17:02:31 UTC

Were sent 3.1 tasks at 7:58 UTC & 8:32 UTC. No more so far.
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HA-SOFT, s.r.o.

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Message 26160 - Posted: 4 Jul 2012, 17:05:14 UTC - in response to Message 26159.  
Last modified: 4 Jul 2012, 17:05:26 UTC

Look promising. No mixed task so far.
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Message 26161 - Posted: 4 Jul 2012, 17:50:50 UTC

Haven't received any more on my 570
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Message 26163 - Posted: 4 Jul 2012, 19:40:14 UTC
Last modified: 4 Jul 2012, 19:41:40 UTC

I've received a CUDA3.1 task today on one of my hosts. However, my hosts receive much less CUDA3.1 tasks lately (btw most of them are turned off because we have a heatwave here in Hungary).
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Message 26165 - Posted: 4 Jul 2012, 22:19:57 UTC
Last modified: 4 Jul 2012, 22:23:06 UTC

Doh! Just received a 3.1 task at 21:19:29 UTC.
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Message 26166 - Posted: 4 Jul 2012, 22:36:17 UTC

I just got a 3.1 a few hours ago.
Thanks - Steve
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Message 26177 - Posted: 5 Jul 2012, 8:48:36 UTC - in response to Message 26166.  

Guys,
if this is acceptable, then I would stay happy with it.
The boinc scheduler has its own personality with many conditionals.

gdf
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Message 26178 - Posted: 5 Jul 2012, 9:20:03 UTC - in response to Message 26177.  

This problem can be handled on the cruncher's side with my workaround.
GDF, I just want to be sure... Could it generate any problems if I crunch the CUDA3.1 tasks with the CUDA4.2 client? (as my workaround works this way)
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Message 26182 - Posted: 5 Jul 2012, 13:16:34 UTC

Yea I got one (3.1) on my 570 again. Or course it always sneaks in when I'm sleeping. I too would like to know if the workaround is acceptable. I will be putting it in place later myself with your permission GDF.
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Message 26191 - Posted: 5 Jul 2012, 22:48:07 UTC - in response to Message 26182.  

what is the percentage of 4.2 that you get compared to 3.1? 95% or much less?

gdf
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Message 26192 - Posted: 5 Jul 2012, 23:02:19 UTC - in response to Message 26182.  
Last modified: 5 Jul 2012, 23:11:37 UTC

2 from the last 20 for me. So presently 90%
Prior to that (~2nd July) it was closer to 50/50.
- checked a few other peoples systems and that seems to be about right.

I think Boinc may periodically chose to run the 3.1 tasks in order to reconfirm that 4.2 is still faster and most stable (or not). Being generic Boinc code, on some projects some tasks may run faster on one app than another app; depending on the system and the tasks type. Of note, the performance of some x86 and x64 tasks my vary relatively from one system to another, and some apps might become more stable or less (statistically) when running different task types...

Just got my first 3.1 in a while. Of course it had to be a short one!
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Message 26193 - Posted: 6 Jul 2012, 9:27:48 UTC - in response to Message 26192.  

Ok,
that's fine for me. Hopefully we will also remove the cuda3.1 app soon at least for long tasks.

gdf
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Message boards : Number crunching : Problem of misassignment of cuda4.2 vs cuda3.1 tasks

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