[mpich-discuss] MPI_Accumulate with MAXLOC does not error for incompatible types

[Jeff Hammond]

> Perhaps, but my reading is that the predefined Op is applied to the basic
> type from which I constructed MY_2INT (i.e., MPI_INT). Since MPI_MAXLOC does
> not apply to MPI_INT, this would be an error. I wouldn't know how to write
> precise language specifying the behavior that would lead to MPI_MAXLOC
> working with MY_2INT.

You're right.  My comment was erroneous.

Jeff


-- 
Jeff Hammond
Argonne Leadership Computing Facility
University of Chicago Computation Institute
jhammond at alcf.anl.gov / (630) 252-5381
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