dolfin team mailing list archive

[Johan Hake <johan.hake@xxxxxxxxx>]

On Monday October 31 2011 23:46:46 Johannes Ring wrote:
> On Tue, Nov 1, 2011 at 6:06 AM, Johan Hake <johan.hake@xxxxxxxxx> wrote:
> > Is one of:
> > 
> >  flufl.lock, fcntl
> > 
> > installed on the buildbots? If looks like the file locking mechanism is
> > not working on there.
> 
> fcntl is available on all the buildbots. 

I figured this was the case the moment I sent the email. The error message at 
the buildbot was presented just before the parallel runs, which made me 
suspicius of the failing had something to do with runs in parallel.
So never mind...

> Should I try to install
> flufl.lock on this buildbot?

That is probably not worth it as flufl.lock is only needed on clusters which 
need file lock over nfs.

All this said there is a unit test (Expression), which tends to fail sometimes 
on the linux64-exp. This is just terribly annoying. That it also triggers some 
logic bug in instant where a file which does not excist is copied doesn't make 
it better...

Looking just a bit more into it, it looks like it is Expressions (note the 
last 's'), which fails. I suggest we remove this function, as it introduces 
complex logics (compressing several Expressions into one instant call), on top 
of something that is already complex (JIT compilations of a single 
Expression). It is also not mentioned in the book. I have checked.

Then I suggest we reconsider the copying of compile.log file to 
~/.instant/error, as it is not working as intented. Not sure what we should 
do, but maybe we could set an environment variable

  INSTANT_DISPLAY_COMPILE_LOG

on the buildbot, and if that is set we print the content of compile.log. I can 
then set the copying of files within a try clause and silently ignore the 
exception. Not pretty but we can issue a warning that the file does not 
excist.

Johan

> Johannes
> 
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