Replacing LAM with OpenMPI in Fedora Core

[Orion Poplawski]

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Ed Hill wrote:
> 
> I understand that OpenMPI is supposed to [at least, for some people's
> perception! ;-)] become the "one true MPI" implementation that eclipses
> all others due to its very cool new modular design and other features.
> But, even so, I think it would be a good idea to have and maintain other
> MPI versions (such as MPICH v1 & v2, LAM, etc.) in Extras so that people
> have some flexibility.  And to do that, we'll very likely need to setup
> the multiple MPI packages using alternatives.

While we are thinking about this, it would be good to be able to support
multiple versions of a particular MPI compiled with different compilers.
 Locally I maintain LAM compiled with PGF90 and IFORT and it would be
nice to be able to have all three installed simultaneously.

- - Orion
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