-#needs MPI_Errhandler_set MPI_Type_get_name
allred 4
allred 7
allred 4 arg=100
nonblocking3 4 mpiversion=3.0
nonblocking3 5 mpiversion=3.0
nonblocking3 10 timeLimit=600 mpiversion=3.0
+nonblocking4 4 mpiversion=3.0
iallred 2 mpiversion=3.0
# ibarrier will hang forever if it fails, but will complete quickly if it
# succeeds