GPU上の並列分岐モデル予測制御
Parallel Branch Model Predictive Control on GPUs
分岐モデル予測制御問題をGPUで高速に解く並列ソルバを提案し、自動運転タスクでCPUベースの既存手法より大規模問題で優位性を示した。
詳しい要約
1. どんなもの?
2. 先行研究と比べてどこがすごい?
3. 技術・手法の肝は?
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著者: Luyao Zhang, Chenghuai Lin, Sergio Grammatico
分類: eess.SY, cs.RO, cs.SY
原文アブストラクト
We present a parallel GPU-accelerated solver for branch Model Predictive Control problems. Based on iterative LQR methods, our solver exploits the tree-sparse structure and implements temporal parallelism using the parallel scan algorithm. Consequently, the proposed solver enables parallelism across both the prediction horizon and the scenarios. In addition, we utilize an augmented Lagrangian method to handle general inequality constraints. We compare our solver with state-of-the-art numerical solvers in two automated driving applications. The numerical results demonstrate that, compared to CPU-based solvers, our solver achieves competitive performance for problems with short horizons and small-scale trees, while outperforming other solvers on large-scale problems.
