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Fixes leaked semaphores #2125

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merged 1 commit into from
Jul 12, 2024
Merged

Fixes leaked semaphores #2125

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10 changes: 7 additions & 3 deletions bittensor/utils/registration.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
import hashlib
import math
import multiprocessing
import multiprocessing.queues # this must be imported separately, or could break type annotations
import os
import random
import time
Expand Down Expand Up @@ -1082,11 +1083,14 @@ def _solve_for_difficulty_fast_cuda(


def _terminate_workers_and_wait_for_exit(
workers: List[multiprocessing.Process],
workers: List[Union[multiprocessing.Process, multiprocessing.queues.Queue]],
) -> None:
for worker in workers:
worker.terminate()
worker.join()
if isinstance(worker, multiprocessing.queues.Queue):
worker.join_thread()
else:
worker.join()
worker.close()


def create_pow(
Expand Down
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