[mpi3-coll] Draft of a proposal for persistent, sparse, nonblocking collectives

[Jesper Larsson Traeff]

Dear all,

attached is a first, very rough draft of a proposal for sparse, persistent,
nonblocking collectives that Torsten and I have been discussing during IPDPS 
last week (with some local discussion here afterwards). It may serve to 
start discussion - either Torsten or I can present the gist of it during the 
group slot wednesday (not much time there, I just realize)

Sorry for the rough state of it all...

(note: it is *not* (yet) LaTeX)

Jesper

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