yade-dev team mailing list archive

[Giulia Macaro <giulia.macaro@xxxxxxxxx>]

It worked! there was also a problem while it was compiling (qt4 was missing
in the scons.profile-default file, but then Chia added it).

Thank you very much!
Giulia


2010/11/25 Václav Šmilauer <eu@xxxxxxxx>

> /Starting program: /usr/bin/python /home/giulia/YADE/bin/yade-bzr2567
>> --debug -x/
>>
>> [Thread debugging using libthread_db enabled]
>> Usage: yade-bzr2567 [options] [ simulation.xml[.bz2] | script.py [script
>> options]]
>>
>> yade-bzr2567: error: no such option: -/
>> /
>>
> Oops, that was a typo on my part, it should have been just -x (without the
> slash), sorry.
>
>  /Program received signal SIGFPE, Arithmetic exception.
>>
>> 0x00007fffe6d4602f in OpenMPAccumulator<double>::OpenMPAccumulator() ()
>>   from /home/giulia/YADE/lib/yade-bzr2567/plugins/libplugins.so
>> (gdb) thread apply bt full
>> /
>> but I don't have anything after that.. I'm completely lost
>>
> Excellent! Had you run with --debug, you would get backtrace, but this is
> good enough already! I think I fixed it in the latest revision (2573). Do
> "bzr up" and re-compile, it should work. In the unexpected case that it does
> not, run again in the debugger and inside (gdb) run yade with --debug (with
> or without -x, that does not make much difference).
>
> Explanation: since there is only one int division in OpenMPAccumulator
> constructor (by the constant CLS, cache line size, hardware-defined property
> of the CPU), it is apparently CLS that is not assigned correctly by
> sysconf(_SC_LEVEL1_DCACHE_LINESIZE) for your processor: it should be
> something like 32, 64, 128 but in your case it gives zero -- I guess that
> your processor model is too new for the system lib to know it (ubuntu 9.10
> you said, right?). I added a check for zero value there, in which case 64
> will be used as fallback.
>
> Cheers, Vaclav
>
>
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