AI驱动、时序感知的功耗优化
AI-Driven, Timing-Aware Power Optimization
Amit Sharma
中文摘要
在紧密耦合的时序、电气和物理约束下,布线后功耗恢复会改变单元选择,且每次修改的价值取决于修复其副作用的成本。该AI驱动框架利用学习模型驱动优化两个阶段:对功耗恢复编辑及后续修复动作进行排序,同时由确定性电子设计自动化(EDA)分析决定所有接受决策。框架记录基线约束裕度,识别恢复事务在各分析视图中引入的损伤,将既有违规保持在基线水平而非在功耗步骤中处理,并将修复开销限制在实测节省的一定比例内。梯度提升模型集成从动作和时序上下文特征预测功耗变化、归一化损伤减少和约束回归风险;校准后的保守估计为恢复和修复提供独立的获取分数,模型不确定时采用确定性回退。恢复和修复保持推测状态,直至物理实现和新分析确认基线保持及正净节省。论文规定了契约、学习策略、事务流程及在开放设计上的预注册公开评估协议。公开设计的伴随研究证据支持该契约,学习策略为提议方案,未报告训练模型结果或专有设计测量数据。
关键要点
- 01解决布线后功耗恢复在紧密耦合约束下改变单元选择且修复副作用成本不确定的问题。
- 02提出AI驱动框架,用学习模型排序功耗恢复编辑和修复动作,由确定性EDA分析决定接受。
- 03使用梯度提升模型集成预测功耗变化、损伤减少和约束回归风险,提供校准保守估计。
- 04规定学习策略、事务流程及在开放设计上的预注册公开评估协议,未报告训练模型结果。
解读
尚无解读。
原始英文摘要
arXiv:2610.18890v1 Announce Type: cross Abstract: Post-route power recovery changes cell choices under tightly coupled timing, electrical and physical constraints, and the value of each change depends on what it costs to repair its side effects. We propose an AI-driven framework in which a learned model drives both phases of the optimization: it ranks the powerrecovery edits to try and the repair actions that follow, while deterministic electronic design automation (EDA) analyses govern every acceptance. The framework records baseline constraint margins, identifies the damage a recovery transaction introduces in each analysis view, holds pre-existing violations at their baseline rather than working them inside the power step, and caps repair spending at a fraction of the measured saving. An ensemble of gradient-boosted models predicts power change, normalized damage reduction and constraint-regression risk from action and timing-context features available before each trial; calibrated, conservative estimates feed separate acquisition scores for recovery and repair, with a deterministic fallback when the model is uncertain. Recovery and repair remain speculative until physical implementation and fresh analysis establish baseline preservation and positive net saving. We specify the contract, the learned policy, the transactional flow and a pre-registered public evaluation protocol on open designs. Evidence from a companion study on public designs supports the contract; the learned policy is proposed, and no trained-model results or proprietary design measurements are reported.
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