Collaborative Research: CSR-PSCE, TM: Effective Resource Sharing and Coordination inside Multicore Processors for High Throughput Computing

多核处理器资源管理面临的主要挑战之一是，现有的操作系统（无论是传统的单核操作系统还是SMP操作系统）都不能有效地处理多核处理器中新的复杂性。为了应对这一挑战，合作者将进行三个密切相关的项目。(1)基于操作系统的缓存分区混合系统设计与实现，将以最小的硬件复杂度为共享缓存提供高效的软件管理，并定义共享缓存管理的硬件/软件接口。(2)设计并实现调度算法，在多核处理器中有效分配CPU、缓存和内存带宽资源。(3)数据对象位置感知缓存分区的设计和实现将区分对象的位置优势，并做出有效的缓存分配决策。本项目的智力挑战有三个方面：(1)混合系统设计涉及硬件和操作系统之间的复杂交互，需要对现有系统结构有深刻的理解，并需要创新来增强体系结构和操作系统内核。(2)基于操作系统的多核处理器调度是系统研究中的一个基本而复杂的问题。(3)所提出的调度和对象协调算法的系统实现需要大量的创新思想，以便将它们无缝地集成到内核中。预计该项目的广泛影响将是重大的。在许多应用领域，迫切需要解决关键问题以显著提高多核处理器的性能。对本科生和研究生的研究培训将解决IT和计算机行业缺乏强大的系统专业人才的问题。

One of the main challenges in multi-core processor resource management is thatexisting operating systems (either conventional OS for single core or OS for SMP) arenot able to effectively handle the new complexities in multi-core processors.In order to address this challenge, the collaborators will conduct three closely relatedprojects. (1) A hybrid system design and implementation for OS-based cachepartitioning will provide efficient software management of shared caches with minimumhardware complexity, and will well define hardware/software interface of shared cachemanagement. (2) The collaborators will design and implement scheduling algorithms inOS kernels to effectively allocate CPU, caches and memory bandwidth resources tomultiprogramming jobs in multi-core processors. (3) A data object locality-aware cachepartitioning design and implementation will distinguish the locality strengths of objectsand make effective cache allocation decisions.The intellectual challenges of this project are threefold: (1) Hybrid system designinvolves complex interactions between hardware and the underlined operating system,and demands insightful understanding of existing system structures and innovation toenhance both architecture and the OS kernels. (2) OS-based scheduling in multi-coreprocessors is a fundamental and complex problem in system research. (3) Systemimplementation of proposed algorithms for scheduling and object coordination demandsa lot of creative ideas for their seamless integration in the kernels. The broader impactof this project is expected to be significant. Solutions to address critical issues forsignificant performance improvement in multi-core processors are timely demanded inmany application areas. The research training to both undergraduate and graduatestudents will address the concerns of lacking strong system professionals in IT andcomputer industries.