FWIW: some of us are working on a variant of MPI that would indeed support what you describe - it would support send/recv (i.e., MPI-1), but not collectives, and so would allow communication between arbitrary programs.
Not specifically targeting HLA/RTI, though I suppose a wrapper that conformed to that standard could be created.
On Apr 15, 2013, at 7:50 AM, John Chludzinski <john.chludzinski_at_[hidden]> wrote:
> This would be a departure from the SPMD paradigm that seems central to
> MPI's design. Each process would be a completely different program
> (piece of code) and I'm not sure how well that would working using
> BTW, MPI is commonly used in the parallel discrete even world for
> communication between LPs (federates in HLA). But these LPs are
> usually the same program.
> On Mon, Apr 15, 2013 at 10:22 AM, John Chludzinski
> <john.chludzinski_at_[hidden]> wrote:
>> Is anyone aware of an MPI based HLA/RTI (DoD High Level Architecture
>> (HLA) / Runtime Infrastructure)?
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