Gilles Gouaillardet <gilles.gouaillar...@gmail.com> writes: > Jed, > > my 0.02US$ > > we recently had a kind of similar discussion about MPI_DATATYPE_NULL, and > we concluded > ompi should do its best to implement the MPI standard, and not what some of > us think the standard should be.
Did anyone suggest violating the standard? > in your configure script, you can simply try to compile a simple fortran > MPI hello world. > if it fails, then you can assume fortran bindings are not available, and > not use fortran types in your application. With which compiler? Remember that we're talking about the C macros -- the user of those might not have any Fortran in their code. Like suppose I have a C library that implements a custom reduction. I'll need to be checking the datatype to dispatch to a concrete implementation. Must I compile in support for being called with MPI_DOUBLE_COMPLEX?
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