forum@abinit.org

Subject: The ABINIT Users Mailing List ( CLOSED )

List archive

Fwd: [abinit-forum] forrtl: severe (174): SIGSEGV, segmentation fault occurred

From: matthieu verstraete <Matthieu.Verstraete@ulg.ac.be>
To: forum <forum@abinit.org>
Subject: Fwd: [abinit-forum] forrtl: severe (174): SIGSEGV, segmentation fault occurred
Date: Wed, 3 Feb 2010 22:06:02 +0100
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type :content-transfer-encoding; b=SWS/r9oUrxEAHqJAcTywt7/dV7hnTSRKISEcSHvcWbqmU2CrjjOdonZ/LF+4gzb/7f H79ePlJsfcNDFBqKfy/liWvU7JudgNeGJfL/bOB3hDHGPse5tbFkk6NPnt7Smi3S1NWm 1Sf1AFjFgAY2kOicqXCvkVhiVPysdfiUZX07E=

Further, the value in the out file is per processor. Your 16Gb are
probably per node, which may have 8 or 16 processors. If this is the
case you will explode the total memory if several procs on the same
node are being used.

Otherwise, Pierre-Matthieu has given you the sure-fire way to diagnose
your problem.

Matthieu

On Wed, Dec 16, 2009 at 5:12 PM, Anglade Pierre-Matthieu
<anglade@gmail.com> wrote:
> Hi,
>
> Unfortunately, I may not be able to be very helpful.
> Since your calculation works with ngkpt 60 60 60, it looks like the
> segfault you observe is likely linked to the number of kpt used. So
> far I guess we can not say much more than that.
> Knowing exactly what is going on inside the code at the segfault
> moment would likely give you (and us) more information on what shall
> be corrected. If you have the possibility to do so, could you compile
> the code again but with debug flags enabled ? And then run your
> calculation monitoring each process with a debugger ? Finally when a
> process fail, you would be able to backtrace the events and find what
> exactly has caused the segmentation violation.
>
> For instance, you would do the following :
> configure --enable-debug
> make
> mpirun -np xxx abinit ....
> top or ps -u login to get the PID of each parallel process launched
> (on each used node of your cluster)
> gdb abinit PID (on each node again)
> bt
>
> regards
>
> PMA
>
> On Wed, Dec 16, 2009 at 4:38 PM, haiou <haiouwyj@gmail.com> wrote:
>> Can anybody help me ?
>>
>
>
>
> --
> Pierre-Matthieu Anglade
>

--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Prof. Matthieu Verstraete

Universite de Liège
Institut de Physique, Bat. B5, 3/7
Allée du 6 aout, 17
B- 4000 Sart Tilman, Liège
Belgium

Associate member European Theoretical Spectroscopy Facility (ETSF
http://www.etsf.eu)

Phone : +32 4 366 90 17
Fax : +32 4 366 36 29

Mail : matthieu.verstraete@ulg.ac.be
matthieu.jean.verstraete@gmail.com

--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Prof. Matthieu Verstraete

Universite de Liège
Institut de Physique, Bat. B5, 3/7
Allée du 6 aout, 17
B- 4000 Sart Tilman, Liège
Belgium

Associate member European Theoretical Spectroscopy Facility (ETSF
http://www.etsf.eu)

Phone : +32 4 366 90 17
Fax : +32 4 366 36 29

Mail : matthieu.verstraete@ulg.ac.be
matthieu.jean.verstraete@gmail.com

Fwd: [abinit-forum] forrtl: severe (174): SIGSEGV, segmentation fault occurred, matthieu verstraete, 02/03/2010