[mpich-discuss] Issue running mpirun on my quad core with ubuntu

[zach]

Thanks for your help. I finally have it working.
For any other newbies out there, make sure you are using the mpd,
mpicc, and mpirun
in the mpich install and not other versions laying around on your system.
Zach

On Wed, Jun 11, 2008 at 9:37 AM, Gus Correa <gus at ldeo.columbia.edu> wrote:
> Hello
>
> Make sure the mpirun you used (also on your path) is the one you really want
> to use,
> i.e., the one associated to the MPICH library you used to compile and link
> the executable.
> The command "which mpirun" will tell.
>
> If it is not, add the correct directory to your path, or (easier) use a full
> path name to mpirun.
>
> Some Linux distributions come with a flavor of mpich, some Fortran compilers
> with another,
> and you may have installed yet another.
>
> Gus Correa
>
> Zachary Lubin wrote:
>
>> Help,
>> I am using Ubuntu 64-bit with a quad core intel chip.
>> I am trying to use mpich on the four cores to run a program.
>> I am getting errors, something about refused connections and i don't
>> understand what to do.
>> I am a beginner with linux.
>>
>> $ mpirun -np 4 my_exe
>> localhost: Connection refused
>> p0_9833:  p4_error: Child process exited while making connection to
>> remote process on localhost: 0
>> p0_9833: (37.003906) net_send: could not write to fd=4, errno = 32
>>
>
>