Lunch a program using a host file, how pass the host file.

[retiarus]

In may machines I have installed mphich, and I executed the hello_pyina.py example using

mpirun -f machinefile hello_pyina.py

where in machinefile I have declared tree hosts:

• ubuntu-02:2
• ubuntu-03:8
• falco03:3

However when I try with test_ezmap.py, I get no result. Reading the examples, I see that some asks for the use of mpirun, and others no. So, how can I specify the hosts/nodes?

Thank you.