[Dune-devel] [Dune-Commit] [Commit] dune-grid - c966253: [Tests] Added parallel grid tests using MPI if available

[Christian Engwer]

On Tue, Nov 03, 2015 at 08:42:18PM +0100, Dominic Kempf wrote:
> Hey Christian,
> 
> The killed process on timeout is the mpirun process, which should then kill
> all child processes, or am I mistaken? In my quick test this morning it
> worked.

As far as I remember my own experiences, it only get a SIG15, but if
the process hangs properly, you need a SIG9 to clean up.

But as I said, I think this will happen very seldom.

Ciao
Christian

> Best,
> Dominic
> 
> On Tuesday, November 3, 2015, Christian Engwer <
> christian.engwer at uni-muenster.de> wrote:
> 
> > Hi Dominic,
> >
> > > You are of course right about the timeouts, it was an oversight by
> > myself.
> > > Fortunately,
> > > the solution is easy. CMake tests have a TIMEOUT property, that takes
> > > precedence over
> > > the timeout settings of the ctest run (which have no timeout if run
> > without
> > > special options).
> >
> > unfortunately this might not be enough. Killing the rank-0 process is
> > not necessarily enough to kill all mpi processes, depending on the
> > type of bug you ran into.
> >
> > But of course the TIMEOUT option is better than nothing and should
> > suffice in most cases.
> >
> > Ciao
> > Christian
> >

-- 
Prof. Dr. Christian Engwer 
Institut für Numerische und Angewandte Mathematik
Fachbereich Mathematik und Informatik der Universität Münster
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48149 Münster

E-Mail  christian.engwer at uni-muenster.de
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