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Subject: Re: [OMPI users] No output from mpirun
From: Varun R (nigen7_at_[hidden])
Date: 2007-12-31 08:42:49


Yes, the 'mpirun' is the one from OpenMPI. And btw mpich worked perfectly
for me. It's only ompi that's giving me these problems. Do I have to setup
ssh or something? Because I remember doing that for mpich.

On Dec 31, 2007 4:15 AM, Reuti <reuti_at_[hidden]> wrote:

> Hi,
>
> Am 26.12.2007 um 10:08 schrieb Varun R:
>
> > I just installed Openmpi 1.2.2 on my new openSUSE 10.3 system. All
> > my programs(C++) compile well with 'mpic++' but when I run them
> > with 'mpirun' i get no output and I immediately get back the
> > prompt. I tried the options '--verbose' and got nothing. When I
> > tried '--debug-daemons' I get the following output:
> >
> > Daemon [0,0,1] checking in as pid 6308 on host suse-nigen
> > [suse-nigen:06308] [0,0,1] orted: received launch callback
> > [suse-nigen:06308] [0,0,1] orted_recv_pls: received message from
> > [0,0,0]
> > [suse-nigen:06308] [0,0,1] orted_recv_pls: received exit
> >
> >
> > Also when I simply run the executable without mpirun it gives the
> > right output. I also tried inserting a long 'for' loop in the
> > program to check if it's getting executed at all and as I suspected
> > mpirun still returns immediately to the prompt. Here's my program:
>
> is the mpirun the one from Open MPI?
>
> -- Reuti
>
> > #include <iostream>
> > #include <mpi.h>
> >
> > using namespace std;
> >
> > int main(int argc,char* argv[])
> > {
> > int rank,nproc;
> > cout<<"Before"<<endl;
> >
> > MPI_Init(&argc,&argv);
> > MPI_Comm_rank(MPI_COMM_WORLD,&rank);
> > MPI_Comm_size(MPI_COMM_WORLD,&nproc);
> > cout<<"Middle"<<endl;
> > MPI_Finalize();
> >
> > int a = 5;
> > for(int i=0; i< 100000; i++)
> > for(int j=0; j<10000; j++)
> > a += 4;
> >
> > if(rank == 0)
> > cout<<"Rank 0"<<endl;
> >
> > cout<<"Over"<<a<<endl;
> >
> > return 0;
> > }
> >
> > I also tried version 1.2.4 but still no luck. Could someone please
> > tell me what could be wrong here?
> >
> > Thanks,
> > Varun
> >
> >
> > _______________________________________________
> > users mailing list
> > users_at_[hidden]
> > http://www.open-mpi.org/mailman/listinfo.cgi/users
>
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