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[Core] Cache vllm_is_batch_invariant #28304

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Merged
merged 2 commits into from
Nov 12, 2025
Merged

[Core] Cache vllm_is_batch_invariant #28304

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e5fe085
[Core] Cache `vllm_is_batch_invariant`
lgeiger Nov 7, 2025
54d2e29
Merge branch 'main' into cache-batch-invariant
lgeiger Nov 12, 2025
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2 changes: 2 additions & 0 deletions vllm/model_executor/layers/batch_invariant.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
import os
from collections import namedtuple
from collections.abc import Callable
from functools import cache
from typing import Any

import torch
Expand Down Expand Up @@ -857,6 +858,7 @@ def get_batch_invariant_attention_block_size() -> AttentionBlockSize:
return AttentionBlockSize(block_m=16, block_n=16)


@cache
def vllm_is_batch_invariant():
env_key = "VLLM_BATCH_INVARIANT"
is_overridden = False
Expand Down