[yt-users] EnzoSimulation error

[Matthew Turk]

Hi Carolyn,

Skimming the source, it looks like light_ray gets imported when you do
yt.analysis_modules.api.  light_ray includes an import of mpi4py.  So
what I think is happening is that this import breaks the local MPI
installation, and rather than throwing an error, it calls the system
exit, dumping you back at the prompt.

I've committed what I think is a fix to both the tip and the stable
repo.  Can you give it a shot?

-Matt

On Wed, Apr 27, 2011 at 3:02 PM, Carolyn Peruta <perutaca at msu.edu> wrote:
> Hi all,
>
> I've never had problems running YT on Ranger before, but after my latest hg pull/update I'm getting the following error:
>
>
> In [3]: from yt.mods import *
>
> In [4]: from yt.analysis_modules.api import EnzoSimulation
> PMGR_COLLECTIVE ERROR: unitialized MPI task: Missing required environment variable: MPIRUN_RANK
>
>
> What's going on here?
>
> Best,
>
> Carolyn
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