168
edits
Difference between revisions of "MPI Hello World"
Jump to navigation
Jump to search
no edit summary
|
== MPI Hello World ==
Many parallel jobs are using [https://en.wikipedia.org/wiki/Message_Passing_Interface MPI] at the lowest level to manage parallel compute resources. You will want to successfully run this example to make sure your parallel computing environment is working properly. These instructions assume you've already set up your cluster ssh keys, as described in [[Cluster SSH access]]
This is a 'Hello World' program that will test the operation of sending jobs to remote workers.
and keep adding lines until you get to <tt> pnode40 slots=4 max_slots=8 </tt>.
The next step assumes you have set up your ssh keys as described in [[Cluster SSH
With 40 nodes listed in your <tt> cluster_hosts </tt> file, run your program again with
| |||