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[Fix] [Intel] dp-attention: Skip the CustomAllReduceV2 import on XPU #46417

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mingfeima merged 2 commits into from
Oct 26, 2026
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[Fix] [Intel] dp-attention: Skip the CustomAllReduceV2 import on XPU #46417

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[Fix] [Intel] dp-attention: Skip the CustomAllReduceV2 import on XPU
arathi-hlab Oct 25, 2026
95e5000
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arathi-hlab Oct 25, 2026
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13 changes: 9 additions & 4 deletions python/sglang/srt/layers/dp_attention.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,9 +17,6 @@
GroupCoordinator,
tensor_model_parallel_all_reduce,
)
from sglang.srt.distributed.device_communicators.custom_all_reduce_v2 import (
CustomAllReduceV2,
)
from sglang.srt.distributed.device_communicators.pynccl_allocator import (
use_symmetric_memory,
)
Expand All @@ -40,7 +37,15 @@
get_spec,
get_stream,
)
from sglang.srt.utils import get_bool_env_var, is_cpu, is_hip
from sglang.srt.utils import get_bool_env_var, is_cpu, is_hip, is_xpu

if is_xpu():
# custom_all_reduce_v2 imports tvm_ffi, absent on XPU; isinstance(x, ()) is False.
CustomAllReduceV2 = ()
else:
from sglang.srt.distributed.device_communicators.custom_all_reduce_v2 import (
CustomAllReduceV2,
)

if TYPE_CHECKING:
from sglang.srt.configs.model_config import ModelConfig
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