def prereduce_size()

in mpi_utils.py [0:0]

• 6 lines of code
• 3 McCabe index (conditional complexity)

def prereduce_size():
    if mpi_size() > 8:
        if mpi_size() % num_nodes() != 0:
            raise ValueError('MPI size not evenly divisible across nodes')
        return gpus_per_node()
    return 0