On Aug 21, 2014, at 09:18 , Nils Homer <nho...@broadinstitute.org> wrote:
> This is certainly a strange issue.  Perhaps there is a problem using the 
> intel deflator with your JVM and environment.  Could you retry by adding to 
> your java command "-Dtry_use_intel_deflater=false"?  You could also move the 
> "libIntelDeflater.so" away from the path.  You should see a difference in the 
> version line that the tool outputs to stderr:
> 
> amd64; Java HotSpot(TM) 64-Bit Server VM 1.7.0_67-b01; Picard version: 
> 1.118(2329276ea55d31ab6b19bab55b9ee7b51e4a446e_1406559781) IntelDeflater
> 
> The IntelDeflator should say JdkDeflator if you turned that feature off 
> properly.

I've disabled it and after a few runs still see a JVM crash.

I don't know if it's an accurate measure of what's happening in Java space, but 
allowing `strace -c -p …` to gather stats on the MarkDuplicates thread for a 
while reports nearly 100% of time in futex().

The runtime is still dramatically different from my other input, and I wonder 
if you have any ideas why?  Do you expect it's some property of the data?  Or 
some pathological edge case?

I can't help but think the crash and runtime leap are related...
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