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Mark Lybeck

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Message 1352271 - Posted: 30 Mar 2013, 23:04:14 UTC

Check this WU it seems that no-one can make sense of it....

http://setiathome.berkeley.edu/workunit.php?wuid=1196302413


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Richard HaselgroveProject Donor
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Message 1352274 - Posted: 30 Mar 2013, 23:10:34 UTC - in response to Message 1352271.

It's a perfectly normal MAX_TRIPLETS_ABOVE_THRESHOLD (Exit status -12)

Check this WU it seems that no-one can make sense of it....

http://setiathome.berkeley.edu/workunit.php?wuid=1196302413

And there's a button (above right when posting) to make urls clickable.

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Profile Mike
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Message 1352275 - Posted: 30 Mar 2013, 23:12:33 UTC

Thats a normal work unit with to much triplets.
All cuda hosts failed while the CPU hosts didn`t.


With each crime and every kindness we birth our future.

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Profile Michel448a
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Message 1352316 - Posted: 31 Mar 2013, 4:49:28 UTC - in response to Message 1352275.

Thats a normal work unit with to much triplets.
All cuda hosts failed while the CPU hosts didn`t.



triplets ?

Spike count: 0
Pulse count: 31
Triplet count: 0
Gaussian count: 0


oh ya, 0 is too many

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Josef W. Segur
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Message 1352343 - Posted: 31 Mar 2013, 7:15:27 UTC - in response to Message 1352316.

Thats a normal work unit with to much triplets.
All cuda hosts failed while the CPU hosts didn`t.



triplets ?

Spike count: 0
Pulse count: 31
Triplet count: 0
Gaussian count: 0


oh ya, 0 is too many

It's the "cudaAcc_find_triplets doesn't support more than MAX_TRIPLETS_ABOVE_THRESHOLD numBinsAboveThreshold in find_triplets_kernel" version of the -12 error. The analysis requires keeping track of which bins are above threshold, and for CUDA there's limited storage considering that many arrays are being analyzed in parallel. Anyhow, just because there are more bins above threshold than normal does not mean that the particular spacings between those bins will be correct for detecting a Triplet event.

When we make the transition to SETI@home v7 those errors will no longer happen. Jason coded the new CUDA apps to send those rare cases back to be rechecked on the CPU. But meanwhile those -12 errors are a fact of life for stock CUDA SETI@home Enhanced applications.
                                                                  Joe

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Message boards : Number crunching : Funny WU


 
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