CAREER: EOC: An Energy-Aware Optimizing Compiler Framework

直到最近，性能一直是硬件和软件设计中最重要的问题。然而，随着电池供电的嵌入式和便携式设备的激增以及通用处理器时钟频率的不断增加，有效的能量优化问题对各种架构变得非常重要。本项目的目标是设计并实现一个能感知能源的优化编译器框架，该框架以用高级语言编写的源代码、能源和性能约束、架构描述和技术相关参数为输入，并生成能源/性能优化的可执行文件和能源消耗估算作为输出。一些关键的贡献包括(i)编译器可以使用的高级能源模型，（ii）验证编译器输出的模拟器基础设施，（iii）新的，面向能源的编译器优化，以及（iv）研究必要的操作系统和架构支持，以实现编译器，操作系统和架构之间的有效合作，从而以统一的方式解决日益增长的能源问题。所提出的能源/性能感知方法代表了迄今为止在优化编译器中使用的纯粹以性能为导向的策略的根本转变，并将在一个越来越具有能源意识的世界中开辟计算研究的新途径。

Until recently, performance has been the single most important issue in the design of hardware and software. However, with the proliferation of battery-powered embedded and portable devices and the ever-increasing clock frequencies of general-purpose processors, the problem of effective energy optimization has become very important for a wide variety of architectures. The goal of this project is to design and implement an energy-aware optimizing compiler framework that take as input a source code written in a high-level language, energy and performance constraints, architectural description and technology related parameters, and generates as output an energy/performance optimized executable and an estimation of energy consumption. Some key contributions include (i) high-level energy models that can be used by a compiler, (ii) a simulator infrastructure to validate compiler output, (iii) new, energy-oriented compiler optimizations, and (iv) investigating the necessary os and architectural support for effective cooperation between the compiler, os, and architecture so as to address the growing energy problem in a unified manner. The proposed energy/performance-aware approach represents a radical shift from pure performance-oriented strategies used so far in optimizing compilers, and will open new avenues of research in computing in a world that is increasingly becoming more energy-conscious.