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[AMD] Fix DSv4 draft extend taking the target compression path during prefill #37713

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Merged
HaiShaw merged 1 commit into from
Sep 3, 2026
+5 −3
Merged

[AMD] Fix DSv4 draft extend taking the target compression path during prefill #37713

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8 changes: 5 additions & 3 deletions python/sglang/srt/layers/attention/deepseek_v4_backend_hip_radix.py
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Original file line number Diff line number Diff line change
Expand Up @@ -481,9 +481,9 @@ def __init__(
self.mtp_enabled = self.topk > 0
self.speculative_num_steps = speculative_num_steps
self.speculative_num_draft_tokens: int = get_spec().speculative_num_draft_tokens
self.is_draft_worker = getattr(model_runner, "is_draft_worker", False)
self.is_dspark_draft = (
getattr(model_runner, "is_draft_worker", False)
and model_runner.spec_algorithm.is_dspark()
self.is_draft_worker and model_runner.spec_algorithm.is_dspark()
)
self.target_verify_num_draft_tokens = self.speculative_num_draft_tokens
if self.is_dspark_draft:
Expand Down Expand Up @@ -1149,7 +1149,9 @@ def init_forward_metadata(self, forward_batch: ForwardBatch) -> None:
and extend_seq_lens is not None
and extend_seq_lens_cpu is not None
)
is_draft = forward_batch.forward_mode.is_draft_extend_v2()
is_draft = (
forward_batch.forward_mode.is_draft_extend_v2() or self.is_draft_worker
)
metadata = self.init_forward_metadata_prefill(
max_seq_len=max_seq_len,
req_pool_indices=req_pool_indices,
Expand Down
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