Forum > GPU crunching
x38g reports
Jason G:
--- Quote from: Josef W. Segur on 22 Jun 2011, 12:26:41 am ---OTOH, we have no way of knowing the result file didn't get corrupted server-side or something like that. However, I'd expect some indication from other users of similar problems in that case. It's a puzzle which cannot be solved now, just watch to see if it happens again with x38g.
--- End quote ---
Hmmm, the missing stderr information to me indicates a few possibilities. Either the improved exit code is not functioning as designed (due to system specific issue or other problem in the code itself), there is a communication issue of some sort (I suppose the server load could have some part there), or indeed the server itself lost that information. I've seen no indication that result files wouldn't follow the same behaviour as stderr contents.
I'm finding that as the cuda app issues get rarer, they do get harder to diagnose when they appear. One thing that is noticeable is that users are finding their errors & inconclusives more quickly now that the web pages display in categorised form ;D
perryjay:
I noticed the missing stderr not only for my result but also one of the others as well. I didn't think it would do you much good that way but from Jason's comment I guess I should have mentioned it here too.
perryjay:
Well, I woke up this morning to another downclocking. I had noticed last night a general sluggishness to my computer but decided not to reboot. Guess I should have. I tend to leave everything running when I quit the computer so I would guess it just built up until something had to give. I don't think it was downclocked for very long so I didn't lose too much. After a reboot everything is back and running good.
EDIT I spoke too soon. It down clocked again. I've rebooted again and it is back up to where it is supposed to be. Guess I will see if it will hold this time. Gotta go cut the grass so I will be away for about an hour. Hope it doesn't go down in that length of time.
Jason G:
Can you catch a task name that's in progress when it does it next time ? When the result is uploaded we could then see if the stderr says anything useful.
perryjay:
This is one that took forever, not sure if it's the one you want. http://setiathome.berkeley.edu/workunit.php?wuid=765100017
Here's another one that completed and validated http://setiathome.berkeley.edu/workunit.php?wuid=765100083
It seemed to effect my CPU times too but that is hard to tell for sure. This one http://setiathome.berkeley.edu/workunit.php?wuid=766957670 seemed to be way too long. I was finishing a couple of APs at the time it happened so I don't have many CPU tasks done . Since the APs were within an hour or so of completion it didn't effect their runtime by much and I don't know exactly what time it happened the first time.
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