def _run()

in horovod/runner/launch.py [0:0]

• 16 lines of code
• 14 McCabe index (conditional complexity)

def _run(args):
    # If LSF is used, use default values from job config
    if lsf.LSFUtils.using_lsf():
        if not args.np:
            args.np = lsf.LSFUtils.get_num_processes()
        if not args.hosts and not args.hostfile and not args.host_discovery_script:
            args.hosts = ','.join('{host}:{np}'.format(host=host, np=lsf.LSFUtils.get_num_gpus())
                                  for host in lsf.LSFUtils.get_compute_hosts())

    # if hosts are not specified, either parse from hostfile, or default as
    # localhost
    if not args.hosts and not args.host_discovery_script:
        if args.hostfile:
            args.hosts = hosts.parse_host_files(args.hostfile)
        else:
            # Set hosts to localhost if not specified
            args.hosts = 'localhost:{np}'.format(np=args.np)

    if _is_elastic(args):
        return _run_elastic(args)
    else:
        return _run_static(args)