use `0` as tag in MPI to avoid too large value
Some versions of OpenMPI have a lower limit than 12345678
; the MPI
standard only guarantees values up to at least 32768
are valid.
Closes: #19 (closed)
Some versions of OpenMPI have a lower limit than 12345678
; the MPI
standard only guarantees values up to at least 32768
are valid.
Closes: #19 (closed)