差分パッチで実現するドメインランダム化シミュレーションのリソース共有
Replicate What Varies: Resource Sharing for Domain-Randomized Embodied Simulation
ドメインランダム化されたロボットシミュレーション環境を「共通テンプレート+差分パッチ」で表現し、多数インスタンス間でリソースを共有してCPU/GPUメモリを大幅に削減するシステムPatchworkを提案。
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?
4. どうやって有効だと検証した?
5. 議論はある?
6. 次に読むべき論文は?
※ AIが要旨から生成した要約です。正確性は原文をご確認ください。
著者: Zixu Hao, Weijun Wang, Xiangyu Li, Liang Mi, Hao Wu, Yunxin Liu, Ting Cao
分類: cs.DC, cs.AI, cs.RO
原文アブストラクト
Simulation provides a low-cost sandbox where embodied agents can attempt tasks, observe outcomes, and learn from experience. Running many diverse simulation environments concurrently can consume substantial CPU and GPU memory because independently constructed scenes duplicate resources that remain unchanged across instances. We present Patchwork, a resource-sharing system for domain-randomized simulation, built around the representation $E=T+Δ$: a shared template contains common resources, and a patch records the mutations needed to construct a target environment. Patchwork separates randomization sampling from replay and selects reusable templates together with patches that preserve each target environment's intended configuration. Its layered runtime shares compiled model structure and immutable assets while keeping mutable parameters and simulation state private to each instance. We implement Patchwork on robosuite and MuJoCo and evaluate it on LIBERO-plus and RoboCasa365 workloads. At 32 replicas, shared-template execution reduces CPU RSS by 88-92% relative to process-per-environment execution. Controlled experiments show how sharing shifts memory growth toward template diversity and unique asset content rather than instance count, within the supported sharing boundaries.
