Jeroen Kleijer wrote:
The stable branch (1.2.x) works perfectly but _only_ when the
communication channel between machines are in the same subnet.
(ethernet)
Since you don't have that much control over which subnet your machines
get in, OpenMPI has a tendency to fail in Amazon's EC2.
However, if you're able to compile and use a version of the
development branch (1.3) you should be use compile and run the "hello
world" program without problems, regardless of the subnet they're in.
I was hoping to avoid something like that (I originally used apt-get to
install OpenMPI) but I guess I have little choice. We'll see how that goes.
In any case, thank you for the response and solution.
