Skip to content

[Bugfix] Fix FlashInfer GDN warmup ValueError on SM90 GPUs #36876

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
tdoublep merged 5 commits into from
Mar 13, 2026
Merged

[Bugfix] Fix FlashInfer GDN warmup ValueError on SM90 GPUs #36876

Changes from all commits
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
5fea689
[Bugfix] Fix FlashInfer GDN warmup ValueError on SM90 GPUs
tdoublep Mar 12, 2026
faba440
Merge branch 'main' into fix-gdn-warmup-flashinfer-unpack
tdoublep Mar 12, 2026
e79902d
Merge branch 'main' into fix-gdn-warmup-flashinfer-unpack
tdoublep Mar 12, 2026
a673e43
Merge branch 'main' into fix-gdn-warmup-flashinfer-unpack
tdoublep Mar 12, 2026
4268492
Merge branch 'main' into fix-gdn-warmup-flashinfer-unpack
ywang96 Mar 12, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 8 additions & 2 deletions vllm/model_executor/models/qwen3_next.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -137,7 +137,7 @@ def fi_chunk_gated_delta_rule(
fi_state = initial_state.to(torch.float32)
fi_g = g.to(torch.float32)
fi_beta = beta.to(torch.float32)
output, final_state = chunk_gated_delta_rule_fi(
result = chunk_gated_delta_rule_fi(
q=q,
k=k,
v=v,
Expand All @@ -147,8 +147,14 @@ def fi_chunk_gated_delta_rule(
output_final_state=output_final_state,
cu_seqlens=cu_seqlens,
)
# FlashInfer returns (output, state) when output_final_state=True,
# or just output when output_final_state=False.
# Unsqueeze back to 4D (1, L, H, D) to match fla output format
return output.unsqueeze(0), final_state
if output_final_state:
output, final_state = result
return output.unsqueeze(0), final_state
else:
return result.unsqueeze(0), None


@CustomOp.register("chunk_gated_delta_rule")
Expand Down
Loading