[aspect-devel] Solution goes wrong after restart

[Siqi Zhang]

Hi Timo,

Thanks for your reply.
The file system I am using for output in previously test on our in house
cluster is just a remotely mounted drive, not a distributed file system.
However a different tests on another Australian supercomputer NCI_Raijin
which uses lustre file system also produces similar problem.

My current p4est setup should have MPI_IO enabled, I will try to disable it
see if it changes the story.

Regards,

Siqi

2015-04-11 1:20 GMT+10:00 Timo Heister <timo.heister at gmail.com>:

> Hey Siqi,
>
> I wonder if this is could be related to the filesystem you are writing
> the files to. If p4est is not using MPI_IO it uses posix in the hope
> that this works reliably.
>
> Do you know what kind of filesystem your output directory is on? Is
> there a different filesystem you can try?
>
> On Fri, Apr 10, 2015 at 2:05 AM, Siqi Zhang <siqi.zhang at mq.edu.au> wrote:
> > Hi all,
> >
> > Recently, I have encountered an issue while trying to restart from a
> > checkpoint. It seems the solution is misplaced into the wrong place while
> > restart (See the two figures). However, the problem is not always
> repeatable
> > (sometimes it restarts fine), and it might be related to something wrong
> in
> > deal.II or p4est.
> >
> > The versions I used to build ASPECT is:
> > DEAL.II         8.2.1
> > P4EST          0.3.4.2  (encountered similar problem on 1.1 as well)
> > TRILINOS     11.12.1
> > MPI                openmpi 1.8.3 (with gcc 4.4.7)
> > and I am using the most recent development version of aspect
> > (1b9c41713a1f234eba92b0179812a4d0b5e0c2a8)
> >
> > I reproduced the problem with the attached prm file (using 2 nodes 24
> > processors total), I wonder if any of you would like to give it a try
> see if
> > it is a bug or just bad installation on my machine?
> >
> > Regards,
> >
> > Siqi
> >
> > --
> > Siqi Zhang
> >
> > Research Associate
> > ARC Centre of Excellence for Core to Crust Fluid Systems (CCFS)
> > Department of Earth and Planetary Sciences
> > Macquarie University
> > NSW 2109
> >
> > Telephone: +61 2 9850 4727
> > http://www.CCFS.mq.edu.au
> > http://www.GEMOC.mq.edu.au
> >
> > _______________________________________________
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> > Aspect-devel at geodynamics.org
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-- 
Siqi Zhang

Research Associate
ARC Centre of Excellence for Core to Crust Fluid Systems (CCFS)
Department of Earth and Planetary Sciences
Macquarie University
NSW 2109

Telephone: +61 2 9850 4727
http://www.CCFS.mq.edu.au
http://www.GEMOC.mq.edu.au
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