Simulation and Performance Optimization of Large-Scale Systems in the Presence of Uncertainties

* ***全球电子工业的快速发展正在不断推出以更高频率和比特率运行的新产品。在如此高的数据速率下，高频效应成为限制微电子系统整体性能的主要因素。此外，对多功能和微型产品的快速增长的需求保证了异构电路模块的集成。因此，不同设计领域之间的传统界限正在迅速消失。此外，几何和物理参数的可变性及其对系统性能的影响是另一个主要问题。这种不确定性在设计层次的所有层面都是不可避免的。例如，制造的不确定性会显著影响片上互连的性能，导致时间变化，这种变化会传播到电路或板级，对整个系统性能和良率产生负面影响。该研究提案呼吁将“面向不确定性的设计”作为设计过程中的一个主要因素，从而在基础设计算法和方法的发展中进行范式转变。作为实现这一目标的一步，一些计划中的研究活动集中在开发专门的随机算法上，以模拟和模拟设计层次不同层次的底层统计信息。此外，将开发*系统的方法将这些算法纳入*设计周期，以实现最优的设计定心。计划中的研究解决了高速应用中常见的通用战略问题，并将在广泛的相关主题中推进最先进的技术。这项研究的成功将使设计人员能够有效地规划和设计目前不可行的大规模系统；从而产生更优越，更可靠的多功能电子和通信产品。此外，所提出的研究的好处并不局限于高速电子系统的设计，因为大规模和不确定性量化挑战是工程和科学中其他几个领域的共同问题。*** *** ******

* *** The*rapid evolution of the global electronic industry is unceasingly introducing*new products operating at ever higher frequencies and bitrates. At such high*data rates, high-frequency effects become the dominant factor limiting the*overall performance of microelectronic systems. In addition, the fast rising*demand for multifunction and miniature products warrants integration of*heterogeneous circuit modules. As a result, the traditional boundaries between*different design domains are fast vanishing. Moreover, variability of the*geometrical and physical parameters and its effect on the system performance is*adding another major concern. This uncertainty becomes inevitable at all levels*of the design hierarchy. For example, manufacturing uncertainties can*significantly influence the performance of on-chip interconnects, leading to*timing variations that can propagate to the circuit or board level with*negative impact on the whole system performance and yield. The research*proposal calls for a paradigm shift in the development of the underlying design*algorithms and methodologies by promoting “Design for Uncertainties” as a major*ingredient in the design process. As a step towards this goal, several of the*planned research activities are focused on the development of specialized*stochastic algorithms to model and simulate the underlying statistical*information at different levels of the design hierarchy. In addition,*systematic methods will be developed to incorporate these algorithms in the*design cycle to achieve optimal design centering. The planned research*addresses generic strategic issues common to high-speed applications and will*advance the state-of-art in a broad spectrum of interrelated topics. The*success of the proposed research will provide designers with the ability to*efficiently plan and design large-scale systems that are not currently*feasible; resulting in superior and more reliable multi-function electronic and*communication products. In addition, the benefits of the proposed research are not*limited to the design of high-speed electronic systems since large-scale and*uncertainty quantification challenges are common issues in several other fields*within engineering and science.*** *** ******