Won Joon Yun
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Open-source work · QuEra Computing · Open source

Bloqade Lanes Contributions

Lookahead routing and multi-candidate placement strategies for QuEra's neutral-atom compiler stack.

Open-source compiler contributions

Overview

Bloqade Lanes compiles neutral-atom programs for fixed-lane architectures where atom transport and lane availability directly affect execution cost.

My contributions add future-aware decisions to routing and placement. The routing heuristic considers downstream circuit-stage cost, while the placement strategy preserves several candidate atom-layout trajectories through beam search.

Results

The routing contribution reduced AOD-lane use by up to 30.8% across Gemini benchmarks; the placement study reduced aggregate lane count by 19.0% against the best fully valid baseline.

The placement result is from the PR #660 benchmark study (437 → 354 aggregate lanes across eight families), not a merged upstream feature.

Contributions

  • LookaheadCongestionAwareTargetGenerator — merged in PR #594
  • MultiCandidateLookaheadPlacementStrategy — proposed in PR #660