yade-dev team mailing list archive

[Václav Šmilauer <eu@xxxxxxxx>]

> I'm Giulia, I've just started my DPhil at the University of Oxford, 
> and I will be using YADE for my research.
> But I can't launch the program.
Welcome!
> (/scons/ after /sudo chown user: /usr/local/ didn't work)
[user -> giulia, therefore "sudo chown giulia: -R /usr/local" (-R for 
recursive), never mind though, that is not related.]
> /giulia@engs-19155:~$ /home/giulia/YADE/bin/yade-bzr2567
> Welcome to Yade bzr2567
> Floating point exception/
>
> Is there anything that I can do to be able to run it?
It looks a little strange, though this kind of problems are usually easy 
to localize. I assume that you got no more output from the debug 
version. That means that the FP exception happens most likely when one 
of the yade modules is imported (in core/main/main.py.in:115 etc), 
perhaps during initialization of other libs it links to; (after that, 
automatic crash information are enabled already). The best would be if 
you could run yade in debugger from the very start; for that, launch gdb 
from the shell, then run yade inside it, like this

$ gdb /usr/bin/python
[...]
(gdb) run /home/giulia/YADE/bin/yade-bzr2567 --debug -x/

After some time, you should get the Floating point exception, when the 
debugger will stop the program, then you type

(gdb) thread apply bt full

/[bt=backtrace, it asks the debugger to show full backtrace, and to do 
that for all threads],/ copy&paste the full output (might be a few 
screens of text) and send it back here. We will see.

Cheers, Václav


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