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[Bugfix] Fix MoE Routing Simulation (#28002)

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Signed-off-by: Tyler Michael Smith <tlrmchlsmth@gmail.com>
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Tyler Michael Smith 2025-11-03 17:26:49 -05:00 committed by GitHub
parent ccd3e55e51
commit 3758757377
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2 changed files with 11 additions and 1 deletions
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2
vllm/model_executor/layers/fused_moe/layer.py
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@ -2066,7 +2066,7 @@ class FusedMoE(CustomOp):
)
# DeepSeekv2 uses grouped_top_k
if use_grouped_topk:
elif use_grouped_topk:
assert topk_group is not None
assert num_expert_group is not None
if is_rocm_aiter_moe_enabled():

10
vllm/model_executor/layers/fused_moe/routing_simulator.py
View File

@ -14,6 +14,10 @@ from typing import Any
import torch
from vllm.logger import init_logger
logger = init_logger(__name__)
class RoutingStrategy(ABC):
"""Base class for token-to-expert routing strategies."""
@ -290,6 +294,12 @@ class RoutingSimulator:
f"Available strategies: "
f"{list(RoutingSimulator._routing_strategies.keys())}"
)
logger.warning_once(
"Simulating MoE routing using a %s strategy. "
"This should only be used for performance testing. "
"Model outputs will not be valid.",
strategy_name,
)
strategy = RoutingSimulator._routing_strategies[strategy_name]
return strategy.route_tokens(