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[Deprecation] Remove DeepGEMM Old Symbol Wrapper #24902

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Merged
merged 2 commits into from
Sep 16, 2025
+3 −25
Merged

[Deprecation] Remove DeepGEMM Old Symbol Wrapper #24902

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fbcc7ee
remove deepgemm old symbol wrapper
yewentao256 Sep 15, 2025
7a2e97c
Merge branch 'main' into wye-remove-deepgemm-deprecation
yewentao256 Sep 15, 2025
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28 changes: 3 additions & 25 deletions vllm/utils/deep_gemm.py
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Original file line number Diff line number Diff line change
Expand Up @@ -67,23 +67,6 @@ def _missing(*_: Any, **__: Any) -> NoReturn:
"package to enable FP8 kernels.")


def _resolve_symbol(module, new: str, old: str) -> Callable[..., Any] | None:
"""Return the *new* symbol if it exists, otherwise the *old* one."""
if hasattr(module, new):
return getattr(module, new)
if hasattr(module, old):
# TODO(wentao): deprecate old symbol in the future.
logger.warning_once(
"Found legacy DeepGEMM symbol `%s`. Please upgrade the `deep_gemm` "
"package so that `%s` is available. Support for the legacy symbol "
"will be removed in a future vLLM release.",
old,
new,
)
return getattr(module, old)
return None


_fp8_gemm_nt_impl: Callable[..., Any] | None = None
_grouped_impl: Callable[..., Any] | None = None
_grouped_masked_impl: Callable[..., Any] | None = None
Expand All @@ -109,14 +92,9 @@ def _lazy_init() -> None:

_dg = importlib.import_module("deep_gemm")

_fp8_gemm_nt_impl = _resolve_symbol(_dg, "fp8_gemm_nt",
"gemm_fp8_fp8_bf16_nt")
_grouped_impl = _resolve_symbol(
_dg, "m_grouped_fp8_gemm_nt_contiguous",
"m_grouped_gemm_fp8_fp8_bf16_nt_contiguous")
_grouped_masked_impl = _resolve_symbol(
_dg, "fp8_m_grouped_gemm_nt_masked",
"m_grouped_gemm_fp8_fp8_bf16_nt_masked")
_fp8_gemm_nt_impl = getattr(_dg, "fp8_gemm_nt", None)
_grouped_impl = getattr(_dg, "m_grouped_fp8_gemm_nt_contiguous", None)
_grouped_masked_impl = getattr(_dg, "fp8_m_grouped_gemm_nt_masked", None)


def fp8_gemm_nt(*args, **kwargs):
Expand Down