On Thu, 16 Aug 2012, Derek Gaston wrote:

> On Thu, Aug 16, 2012 at 8:36 AM, Roman Vetter <[email protected]> wrote:
>
>> I'm going to need two different meshes (with different dimension) in one
>> simulation. On each of them, a transient system is solved, and they
>> mutually interact during each timestep. My perception is that the
>> intended way to achieve this is by using two EquationSystems. Is that
>> correct?
>>
>
> libMesh now supports multiple dimensional elements in the "same" mesh.

Wow - seriously?  I must have misread the recent discussion.  I knew
you were working on that but I didn't think we were there already.
Are the elements allowed to share nodes and/or neighbor each other?
Could you get a test case into our examples/ before I inadvertently
break this?

> You can initialize libMesh with different communicators on different
> processors.... but you will have a hard time getting those two
> "subsections" of processors to talk to each other....

Getting them to talk to each other is easy enough; you can create a
new Parallel::Communicator from MPI_COMM_WORLD and then all our
friendly helper functions should work with that.  Getting the
communication efficient will be a bear in any case, though; you'd have
to construct your own send_list connecting completely independent
partitionings.
---
Roy

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