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12 changes: 12 additions & 0 deletions vllm_omni/entrypoints/omni_stage.py
Original file line number Diff line number Diff line change
Expand Up @@ -698,6 +698,12 @@ def _stage_worker(
in_q = create_zmq_queue(zmq_ctx, in_q, zmq.PULL)
if isinstance(out_q, str):
out_q = create_zmq_queue(zmq_ctx, out_q, zmq.PUSH)
# When using ZMQ (cross-node IPC), disable SHM so data is sent inline.
shm_threshold_bytes = sys.maxsize
logger.info(
"[Stage-%s] ZMQ transport detected; disabling SHM IPC (shm_threshold_bytes set to maxsize)",
stage_id,
)

# Aggregates for running average
_agg_total_tokens = 0
Expand Down Expand Up @@ -1092,6 +1098,12 @@ async def _stage_worker_async(
in_q = create_zmq_queue(zmq_ctx, in_q, zmq.PULL)
if isinstance(out_q, str):
out_q = create_zmq_queue(zmq_ctx, out_q, zmq.PUSH)
# When using ZMQ (cross-node IPC), disable SHM so data is sent inline.
shm_threshold_bytes = sys.maxsize
logger.info(
"[Stage-%s] ZMQ transport detected; disabling SHM IPC (shm_threshold_bytes set to maxsize)",
stage_id,
)

# Aggregates for running average
_agg_total_tokens = 0
Expand Down