View source for Running VisIt in parallel

Running in parallel ...

You will probably need to build Visit to ensure that it works with your version of MPI.

= Setting up a host profile =

This Wiki page has not been written yet.  Until then, your best bet is to look at the excellent video tutorial by Brock Palen on how to set up a host profile on YouTube [http://www.youtube.com/watch?v=IPekLxRJxJ0].

== Host profile window ==
== Setting up host information in Python ==
You must explicitly open a compute engine if you want control over how it will launch when you run from Python. You will get the Engine chooser window as normal when you run with a window but most Python sessions are run without a window using the -nowin flag. When you run without a window, you must specify all of the parallel launcher arguments (see visit -fullhelp).
<source lang="python">
# Example (correct this later, give examples for specific machines)
OpenComputeEngine("localhost", ("-nn", "8", "-np", "16", "-l", "psub", "-p", "pbatch")) 
</source>

[[Category: User Documentation]]
[[Category: Parallel]]