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[easy] Log subproc pool creation #138642

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[easy] Log subproc pool creation #138642

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[easy] Log subproc pool creation
masnesral Oct 22, 2024
029dd0d
lint on "[easy] Log subproc pool creation"
masnesral Oct 22, 2024
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6 changes: 6 additions & 0 deletions torch/_inductor/async_compile.py
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,8 @@

kernel_code_log = torch._logging.getArtifactLogger(__name__, "kernel_code")

log = logging.getLogger(__name__)


def pre_fork_setup():
"""
Expand Down Expand Up @@ -160,10 +162,14 @@ def process_pool() -> AnyPool:
pool: AnyPool
if get_worker_start_method() == "subprocess":
# Wrapper around ProcessPoolExecutor forks in a new process we control
log.info("Creating subprocess pool with %d workers", get_compile_threads())
pool = SubprocPool(get_compile_threads())
else:
pre_fork_setup()
ctx = multiprocessing.get_context(get_worker_start_method())
log.info(
"Creating forked subprocess pool with %d workers", get_compile_threads()
)
pool = ProcessPoolExecutor(
get_compile_threads(),
mp_context=ctx,
Expand Down
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