* Lofstead, Gerald F II <[email protected]> [2012-05-24 20:08:51]:

I can see the usefulness of this beyond the SWMR case (essentially queue a bunch of IO ops in the background and come back when they are all done) and wonder is there a broader agenda that should be looked at for this? For example, is the non-blocking, but ordered idea something useful for messaging as well? Personally, I think so. Given that, is it worth exploring this in a broader context to add the non-blocking, ordered style to MPI as a whole?

Other than an explicit queue mechanism to execute these in series, what are the complexity problems you envision? It seems really straightforward.

Also, what (if anything) would prevent implementing this on top of MPI, using existing the MPI_File_iread/iwrite routines? Dries