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Helion tops B200 kernel hackathon
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REDDIT · REDDIT// 27d agoTUTORIAL

Helion tops B200 kernel hackathon

A developer won PyTorch's inaugural Helion Hackathon (March 2026) by topping the leaderboard for causal depthwise 1D convolution on B200 GPUs, hitting ~10 microseconds. Helion's autotuner handled 90–95% of the optimization automatically by compiling a single kernel definition into thousands of Triton configurations.

// ANALYSIS

The result is a concrete proof point for Helion's core claim: serious GPU kernel performance is reachable without being a Triton or CUDA expert, just a PyTorch programmer who understands tiling.

  • Helion's autotuner systematically explores block sizes, loop orderings, and memory layouts — a search space that explodes combinatorially on B200 hardware
  • B200 kernel optimization is brutal: Gated DeltaNet patterns, Mixture of Experts, inter/intra-chunk attention, and KV caching each demand different strategies per model architecture
  • The last 5–10% still required manual grinding — Helion compresses the hard work dramatically but doesn't eliminate expertise entirely
  • Local inference via NVIDIA Pro 6000 powering an agent harness performed well throughout, reinforcing that local LLM setups are viable for competitive development workflows
  • Hackathon submission repo published at github.com/brandonin/helion-hackathon-submission, useful as a reference for anyone exploring Helion on convolution kernels
// TAGS
heliongpuinferenceopen-sourcebenchmark

DISCOVERED

27d ago

2026-03-16

PUBLISHED

27d ago

2026-03-16

RELEVANCE

6/ 10

AUTHOR

brandon-i