bodo.get_size

bodo.get_size() Get the total number of processes.

Example Usage

Save following code in get_rank_size.py file and run with mpiexec.

import bodo
# some work only on rank 0
if bodo.get_rank() == 0:
    print("rank 0 done")

# some work on every process
print("rank", bodo.get_rank(), "here")
print("total ranks:", bodo.get_size())

mpiexec -n 4 python get_rank_size.py

Output

rank 0 done
rank 0 here
total ranks: 4
rank 1 here
total ranks: 4
rank 2 here
total ranks: 4
rank 3 here
total ranks: 4