python/tvm/exec/rpc_tracker.py

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# pylint: disable=redefined-outer-name, invalid-name
"""Tool to start RPC tracker"""
from __future__ import absolute_import

import logging
import argparse
import multiprocessing
import sys
from ..rpc.tracker import Tracker


def main(args):
    """Main funciton"""
    tracker = Tracker(args.host, port=args.port, port_end=args.port_end, silent=args.silent)
    tracker.proc.join()


if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument("--host", type=str, default="0.0.0.0", help="the hostname of the tracker")
    parser.add_argument("--port", type=int, default=9190, help="The port of the RPC")
    parser.add_argument("--port-end", type=int, default=9199, help="The end search port of the RPC")
    parser.add_argument(
        "--no-fork",
        dest="fork",
        action="store_false",
        help="Use spawn mode to avoid fork. This option \
                         is able to avoid potential fork problems with Metal, OpenCL \
                         and ROCM compilers.",
    )
    parser.add_argument("--silent", action="store_true", help="Whether run in silent mode.")

    parser.set_defaults(fork=True)
    args = parser.parse_args()
    logging.basicConfig(level=logging.INFO)
    if args.fork is False:
        if sys.version_info[0] < 3:
            raise RuntimeError("Python3 is required for spawn mode.")
        multiprocessing.set_start_method("spawn")
    else:
        if not args.silent:
            logging.info(
                "If you are running ROCM/Metal, fork will cause "
                "compiler internal error. Try to launch with arg ```--no-fork```"
            )
    main(args)