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Subject: Re: [OMPI users] SIGSEV when running OMPI Java binding
From: Jeff Squyres (jsquyres) (jsquyres_at_[hidden])
Date: 2014-03-11 16:35:53


Looks like we still have a bug in one of our components -- can you try:

    mpirun --mca coll ^ml ...

This will deactivate the "ml" collective component. See if that enables you to run (this particular component has nothing to do with Java).

On Mar 11, 2014, at 1:33 AM, Saliya Ekanayake <esaliya_at_[hidden]> wrote:

> Just tested that this happens even with the simple Hello.java program given in OMPI distribution.
>
> I've made a tarball containing details of the error adhering to http://www.open-mpi.org/community/help/. Please let me know if I have missed any info necessary.
>
> Thank you,
> Saliya
>
>
>
>
> On Mon, Mar 10, 2014 at 10:46 AM, Jeff Squyres (jsquyres) <jsquyres_at_[hidden]> wrote:
> Greetings, and thanks for trying out our Java bindings.
>
> Can you provide some more details? E.g., is there a particular program you're running that incurs these problems? Or is there even a particular MPI function that you're using that results in this segv (e.g., perhaps we have a specific bug somewhere)?
>
> Can you reduce the segv to a small example that we can reproduce (and therefore fix)?
>
>
> On Mar 10, 2014, at 12:05 AM, Saliya Ekanayake <esaliya_at_[hidden]> wrote:
>
> > Hi,
> >
> > I have 8 nodes each with 2 quad core sockets. Also, the nodes have IB connectivity. I am trying to run OMPI Java binding in OMPI trunk revision 30301 with 8 procs per node totaling 64 procs. This gives a SIGSEV error as below.
> >
> > I wonder if you have any suggestion to resolve this?
> >
> > Thank you,
> > Saliya
> >
> > # A fatal error has been detected by the Java Runtime Environment:
> > #
> > # SIGSEGV (0xb) at pc=0x000000313867b75b, pid=12229, tid=47864973515072
> > #
> > # JRE version: Java(TM) SE Runtime Environment (8.0-b118) (build 1.8.0-ea-b118)
> > # Java VM: Java HotSpot(TM) 64-Bit Server VM (25.0-b60 mixed mode linux-amd64 compressed oops)
> > # Problematic frame:
> > # C [libc.so.6+0x7b75b] memcpy+0x15b
> >
> >
> > --
> > Saliya Ekanayake esaliya_at_[hidden]
> > http://saliya.org
> > _______________________________________________
> > users mailing list
> > users_at_[hidden]
> > http://www.open-mpi.org/mailman/listinfo.cgi/users
>
>
> --
> Jeff Squyres
> jsquyres_at_[hidden]
> For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users
>
>
>
> --
> Saliya Ekanayake esaliya_at_[hidden]
> Cell 812-391-4914 Home 812-961-6383
> http://saliya.org
> <hellobug.tar.gz>_______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users

-- 
Jeff Squyres
jsquyres_at_[hidden]
For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/