Re: [OMPI users] OpenMPI does not see other nodes

[Nico Mittenzwey]

On 01/21/2011 12:26 PM, Steffen Brinkmann wrote:
/home_dir/openmpi-1.4.3_installation/bin/mpirun -n 32 hostname
returns 32 times the same node.

What did I do wrong???

You need to tell OpenMPI on which hosts to run - for example by suppling 
a host file:

/home_dir/openmpi-1.4.3_installation/bin/mpirun -n 32 --hostfile 
./myhosts hostname

But you should have courses on that in Stuttgart.... ;) SCNR

Nico