Hi Gus Thanks for your suggestion. But I am not using any resource manager (i.e. I am launching mpirun from the bash shell.). In fact, both of the two clusters I talked about run CentOS 7 and I launch the job the same way on both of these, yet one of them creates standard core files and the other creates the 'btr; files. Strange thing is, I could not find anything on the .btr (= Backtrace?) files on Google, which is any I asked on this forum.
Best regards Durga The surgeon general advises you to eat right, exercise regularly and quit ageing. On Mon, May 9, 2016 at 12:04 PM, Gus Correa <g...@ldeo.columbia.edu> wrote: > Hi Durga > > Just in case ... > If you're using a resource manager to start the jobs (Torque, etc), > you need to have them set the limits (for coredump size, stacksize, locked > memory size, etc). > This way the jobs will inherit the limits from the > resource manager daemon. > On Torque (which I use) I do this on the pbs_mom daemon > init script (I am still before the systemd era, that lovely POS). > And set the hard/soft limits on /etc/security/limits.conf as well. > > I hope this helps, > Gus Correa > > On 05/07/2016 12:27 PM, Jeff Squyres (jsquyres) wrote: > >> I'm afraid I don't know what a .btr file is -- that is not something that >> is controlled by Open MPI. >> >> You might want to look into your OS settings to see if it has some kind >> of alternate corefile mechanism...? >> >> >> On May 6, 2016, at 8:58 PM, dpchoudh . <dpcho...@gmail.com> wrote: >>> >>> Hello all >>> >>> I run MPI jobs (for test purpose only) on two different 'clusters'. Both >>> 'clusters' have two nodes only, connected back-to-back. The two are very >>> similar, but not identical, both software and hardware wise. >>> >>> Both have ulimit -c set to unlimited. However, only one of the two >>> creates core files when an MPI job crashes. The other creates a text file >>> named something like >>> >>> <program_name_that_crashed>.80s-<a-number-that-looks-like-a-PID>,<hostname-where-the-crash-happened>.btr >>> >>> I'd much prefer a core file because that allows me to debug with a lot >>> more options than a static text file with addresses. How do I get a core >>> file in all situations? I am using MPI source from the master branch. >>> >>> Thanks in advance >>> Durga >>> >>> The surgeon general advises you to eat right, exercise regularly and >>> quit ageing. >>> _______________________________________________ >>> users mailing list >>> us...@open-mpi.org >>> Subscription: https://www.open-mpi.org/mailman/listinfo.cgi/users >>> Link to this post: >>> http://www.open-mpi.org/community/lists/users/2016/05/29124.php >>> >> >> >> > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: https://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2016/05/29141.php >
