TOP dense parity for Qwen3 on Blackwell: flashinfer attention, batch-invariant kernel seam, non-reentrant recompute#70

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adrenaline21 wants to merge 9 commits into

top-blackwell-dense-parity

Commits on Jul 19, 2026

fix(top): pin flashinfer prefill backend to sglang's (contractual parity)
adrenaline21
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test(top): grad test for tp-invariant row-linear backward
adrenaline21
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Commits on Jul 20, 2026

fix(top): flashinfer prefill backend fa2; CP-correct head counts + output-parity test
adrenaline21
committed