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Finalist

Team SEWR

Built at PyTorch Helion Hackathon · Mar 14, 2026 · San Francisco, CA

causal_conv1d: Causal depthwise 1D convolution with static per-shape configs and a stable fused convolution path; this is the highest-confidence officially validated variant from my set. fp8_quant: Group-128 FP8 E4M3 quantization with exact-shape dispatch across the benchmark regimes; this was my fastest locally correct quantization variant. gated_deltanet_chunk_fwd_h: Inter-chunk state recurrence with a faster multi-chunk state pass while preserving the official-safe execution path; it improved the larger official benchmark cases substantially. gated_deltanet_chunk_fwd_o: Output kernel with a vectorized fast path that remained locally correct while recovering most of the speed lost in earlier safe rewrites. gated_deltanet_recompute_w_u: WY-transform forward kernel with a merged-matmul hot path for the dominant 64x64, H=3 cases plus shape dispatch for correctness elsewhere.

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