Files
xc-llm-ascend/vllm_ascend/distributed/kv_transfer/utils/mooncake_transfer_engine.py
liziyu 14bef9af6f [P/D] Remove restrictions on mooncake for IPv6 (#5946)
### What this PR does / why we need it?
Remove restrictions on mooncake for IPv6
Dependencies: cann8.5、mooncake v0.3.8.post1

- vLLM version: v0.13.0
- vLLM main:
2c24bc6996

---------

Signed-off-by: liziyu <liziyu16@huawei.com>
2026-01-24 11:30:22 +08:00

46 lines
1.8 KiB
Python

import ipaddress
import threading
from typing import Optional
from mooncake.engine import TransferEngine # type: ignore
class GlobalTE():
def __init__(self):
self.transfer_engine = None
self.is_register_buffer: bool = False
self.transfer_engine_lock = threading.Lock()
self.register_buffer_lock = threading.Lock()
def get_transfer_engine(self, hostname: str, device_name: Optional[str]):
if self.transfer_engine is None:
with self.transfer_engine_lock:
# Double-Checked Locking
if self.transfer_engine is None:
if TransferEngine is None:
raise RuntimeError("mooncake is not available")
self.transfer_engine = TransferEngine()
device_name = device_name if device_name is not None else ""
ret_value = self.transfer_engine.initialize(
hostname, "P2PHANDSHAKE", "ascend", device_name)
if ret_value != 0:
raise RuntimeError(
f"TransferEngine initialization failed with ret_value: {ret_value}"
)
return self.transfer_engine
def register_buffer(self, ptrs: list[int], sizes: list[int]):
with self.register_buffer_lock:
assert self.transfer_engine is not None, "Transfer engine must be initialized"
if self.is_register_buffer:
return
for ptr, size in zip(ptrs, sizes):
ret_value = self.transfer_engine.register_memory(ptr, size)
if ret_value != 0:
raise RuntimeError("Mooncake memory registration failed.")
self.is_register_buffer = True
global_te = GlobalTE()