Replace MPI_Allreduce with allreduce
@frey_m suggested in #485 (comment 18514) to use allreduce instead of MPI_Allreduce:
Please consider also the use of Datatypes.h with one of the allreduce functions.
[..] Here is an example.
@frey_m suggested in #485 (comment 18514) to use allreduce instead of MPI_Allreduce:
Please consider also the use of Datatypes.h with one of the allreduce functions.
[..] Here is an example.