[Mpi-forum] does anyone use MPI_Register_datarep and related?

[Jeff Hammond]

I can't find these in the MPICH test suite or anywhere else on the
internet, except in contexts where they are included because they are part
of the MPI API.

These functions have been in MPI since 2.1, i.e. 2008.  If there is no
usage after 15 years, we should deprecate these functions.  As best I can
tell, they are nontrivial to implement, so their existence is a distraction
for anyone wishing to apply their creative energy to MPI I/O.

Jeff

-- 
Jeff Hammond
jeff.science at gmail.com
http://jeffhammond.github.io/
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