[MOAB-dev] parallel moab example

[Tim Tautges]

de Almeida, Valmor F. wrote:
> Tim/Jason,
> 
> A few questions:
> 
> Is mbzoltan in /tools a typical example of moab usage in parallel? I see
> that the mesh partition can only run in one processor? (line 204
> MBZoltan.cpp).
> 

No, that's only because Zoltan only works in parallel, and right now as 
written mbzoltan is a serial partitioner.

> Is the mpi c bindings used throughout moab parallel? (as opposed to c++
> bindings).
> 

Yes, and I'd like to keep it that way.

> Does MBParallel do a mesh partition on its own? Or does it depend on
> either zoltan/chaco?
> 

If you're referring to MBParallelComm, no, it just uses some 
decomposition of the mesh (indicated using entity sets).  That can be a 
material definition, geometric topology, or a partition written by mbzoltan.

> Is there an example where moab is used to read a mesh, partition, and
> send the partitioned data to processors (maybe with each processor
> writing its own data to file?)
> 

Yes, that's mbzoltan, as long as you run it on one processor.  There's 
no equivalent currently for doing this in parallel.

- tim

> Thanks,
> 
> --
> Valmor
> 
> 
> 

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              Tim Tautges            Argonne National Laboratory
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