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Subject: Re: [OMPI users] mpirun runs in serial even I set np to several processors
From: Djordje Romanic (djordje8_at_[hidden])
Date: 2014-04-14 15:11:11


Yes, but I was hoping to get. :)

On Mon, Apr 14, 2014 at 3:02 PM, Jeff Squyres (jsquyres) <jsquyres_at_[hidden]
> wrote:

> If you didn't use Open MPI, then this is the wrong mailing list for you.
> :-)
>
> (this is the Open MPI users' support mailing list)
>
>
> On Apr 14, 2014, at 2:58 PM, Djordje Romanic <djordje8_at_[hidden]> wrote:
>
> > I didn't use OpenMPI.
> >
> >
> > On Mon, Apr 14, 2014 at 2:37 PM, Jeff Squyres (jsquyres) <
> jsquyres_at_[hidden]> wrote:
> > This can also happen when you compile your application with one MPI
> implementation (e.g., Open MPI), but then mistakenly use the "mpirun" (or
> "mpiexec") from a different MPI implementation (e.g., MPICH).
> >
> >
> > On Apr 14, 2014, at 2:32 PM, Djordje Romanic <djordje8_at_[hidden]> wrote:
> >
> > > I compiled it with: x86_64 Linux, gfortran compiler with gcc
> (dmpar). dmpar - distributed memory option.
> > >
> > > Attached is the self-generated configuration file. The architecture
> specification settings start at line 107. I didn't use Open MPI (shared
> memory option).
> > >
> > >
> > > On Mon, Apr 14, 2014 at 1:23 PM, Dave Goodell (dgoodell) <
> dgoodell_at_[hidden]> wrote:
> > > On Apr 14, 2014, at 12:15 PM, Djordje Romanic <djordje8_at_[hidden]>
> wrote:
> > >
> > > > When I start wrf with mpirun -np 4 ./wrf.exe, I get this:
> > > > -------------------------------------------------
> > > > starting wrf task 0 of 1
> > > > starting wrf task 0 of 1
> > > > starting wrf task 0 of 1
> > > > starting wrf task 0 of 1
> > > > -------------------------------------------------
> > > > This indicates that it is not using 4 processors, but 1.
> > > >
> > > > Any idea what might be the problem?
> > >
> > > It could be that you compiled WRF with a different MPI implementation
> than you are using to run it (e.g., MPICH vs. Open MPI).
> > >
> > > -Dave
> > >
> > > _______________________________________________
> > > users mailing list
> > > users_at_[hidden]
> > > http://www.open-mpi.org/mailman/listinfo.cgi/users
> > >
> > > <configure.wrf>_______________________________________________
> > > 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
> >
> > _______________________________________________
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> > 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/
>
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