Parallel computations

As well as launching computations on your local machine, Sumatra can launch distributed, MPI-based computations on a cluster, at least for simple use-cases. We assume you already have your hosts files, etc. set up. Then, to run your computation on 17 nodes, run:

$ smt run -n 17 default.param

(assuming you have already configured your default executable and main script file). This will call mpiexec for you with the appropriate arguments.

If this is insufficiently configurable for you, please take a look at the DistributedLaunchMode class in launch.py within the source distribution, and get in touch with the Sumatra developers, for example by creating a ticket or asking a question on the mailing list.