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use static signature for sfd_col_d_srelu_tensor #281

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Merged
saltyminty merged 1 commit into from
Jun 8, 2026
Merged

use static signature for sfd_col_d_srelu_tensor #281

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16 changes: 14 additions & 2 deletions python/cudnn/grouped_gemm/grouped_gemm_dsrelu/api.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1480,6 +1480,18 @@ def dynamic_m_tensor_signature(
stride_signature = tuple(None if i in dynamic_stride_dims else s for i, s in enumerate(tensor.stride()))
return static_shape_suffix, stride_signature, tensor.dtype

def dynamic_sfd_col_tensor_signature(tensor: Optional[torch.Tensor]) -> Tuple[Optional[Tuple[int, ...]], Optional[Tuple[int, ...]], Optional[torch.dtype]]:
if tensor is None:
return None, None, None
static_shape = (
tensor.shape[0],
tensor.shape[1],
tensor.shape[2],
tensor.shape[3],
tensor.shape[5],
)
return dynamic_m_tensor_signature(tensor, static_shape, dynamic_stride_dims=(2, 5))

use_full_dynamic = is_dense and os.environ.get("CUDNN_FE_GROUPED_GEMM_DYNAMIC_MNKL", "1") != "0"

if is_dense:
Expand Down Expand Up @@ -1537,8 +1549,8 @@ def dynamic_m_tensor_signature(
*dynamic_m_tensor_signature(prob_tensor, (1, 1)),
*dynamic_m_tensor_signature(dprob_tensor, (1, 1)),
*tensor_signature(dbias_tensor),
*dynamic_m_tensor_signature(d_srelu_tensor, (n_out, 1)),
*tensor_signature(sfd_col_d_srelu_tensor),
*dynamic_m_tensor_signature(d_srelu_tensor, (n_out, 1), dynamic_stride_dims=(2,)),
*dynamic_sfd_col_tensor_signature(sfd_col_d_srelu_tensor),
*tensor_signature(norm_const_tensor),
tuple(b_ptrs.shape),
tuple(b_ptrs.stride()),
Expand Down