Author

Tetsuya Hoshino

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Preprint Aug 2026

Validation-Centric AI-Assisted GPU Porting of a 250,000+ Line Legacy Weather Simulation Code

Recent advances in large language models have made CLI-based AI agents a practical tool for accelerating GPU porting of large legacy scientific applications. Such applications, however, are not merely old code bases; they are scientific assets whose credibility has been accumulated through long-term development, compar...

Tetsuya Hoshino, Masaya Kato, K. Tsuboki et al. · 0 citations

Review

HPC-AutoResearch: Adapting Autonomous Research Systems for HPC through Split-Phase Execution and LLM-Based Code Generation

HPC-AutoResearch is presented, a proof-of-concept system for the autonomous execution of compiled-code research workflows in HPC-like environments that divides this sub-pipeline into five phases—planning, environment setup, coding, compilation, and execution—localizing failures within each phase and enabling iterative...

T. Kotama, Shun-ichiro Hayashi, Daichi Mukunoki et al. · 0 citations

Preprint Aug 2026

ATFlash: Per-RoPE-Wavelength Attention Windows for Compute/Memory-Efficient LLM Inference

The attention score with rotary position embeddings (RoPE) decomposes exactly into a sum over its 2D-rotation frequency pairs, and each pair's wavelength limits how far it can discriminate position. Aligned with this structure, we propose the per-RoPE-wavelength distance window: it prunes the query--key inner-product t...

Shun-ichiro Hayashi, Daichi Mukunoki, Tetsuya Hoshino et al. · 0 citations