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Description
Phase
G2
Task Type
性能向上
Priority
High
Task Breakdown
- GPU加速バックエンド実装
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code/backends/gpu_backend.py- CUDA/OpenCL wrapper - Numba CUDA kernels for CA updates
- CuPy integration for array operations
- Memory management (GPU ↔ CPU transfer optimization)
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- 並列処理システム拡張
- Multiprocessing support for parameter sweeps
- Distributed computing preparation (Dask/Ray)
- Load balancing across multiple GPUs
- 性能測定・ベンチマーク
- Performance profiling tools integration
- CPU vs GPU timing comparison
- Memory usage optimization
- Scalability analysis (grid size vs performance)
- 後方互換性保証
- Automatic fallback to CPU when GPU unavailable
- API consistency with existing CA2D implementation
- Configuration-based backend selection
目標・期待される成果
- 大規模実験 (200×200+ grids) の実用化
- パラメータ掃引の10-100倍高速化
- リアルタイム可視化の実現
- G3フェーズでの3D CA準備
必要なリソース・参考資料
- NVIDIA CUDA Toolkit & CuPy documentation
- Numba CUDA programming guide
- GPU並列コンピューティング理論
- Scientific computing GPU最適化事例
- PyTorch/JAX のCA実装例
見積もり時間
10日
締切
2025-09-20
依存関係
- G1フェーズ完了 (Issues [G1] CA-2D minimal implementation #1-[G1]: LaTeXスケルトン / Overleaf #5)
- CA-2D core implementation
- 対象GPU環境の確保 (NVIDIA GTX/RTX series推奨)
Additional Notes
- CUDA 11.0+ compatibility target
- Automatic device detection & selection
- Memory-efficient batch processing for large parameter sweeps
- Integration with Issue [G2] Hyperparameter Optimization with Optuna #11 (Optuna) for GPU-accelerated optimization
- Docker containerization for GPU environment reproducibility
- Performance benchmarks to be included in LaTeX paper (Issue [G1]: LaTeXスケルトン / Overleaf #5)
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