Question

I’m trying to do some parallel programming on a HPC running on Windows server 2008. I’m trying to use MPI and particulary MPI.NET an implentation of the MPI protocol in C#. Right now I’m following the tutorial to understand the library.

I’m trying to run the program pingpong.exe given with the SDK. It works fine on the HPC if the processes are on the same node (so it’s the same utility as a threading system) As soon as it is on more than one node, it doesn’t work.

What am I missing ?

Thanks.

Answer 1

Ok I’ve been able to understand why, it wasn’t working : the firewall was blocking the message between the nodes. source It’s possible to change the firewall so it doesn’t block anything inside the cluster.

Hope it helps the next person.

Thanks Mark and IronMan.