Efficient and Scalable Communication and System Software for Exascale Computing

高性能计算(HPC)用于解决各种领域的计算密集型问题，包括绿色能源和生物燃料、癌症研究和药物发现、天气预报和气候变化、石油和天然气的地震处理、基因组学和生物信息学、天体物理学、材料科学、汽车、国防、数据挖掘和分析以及金融计算。它是许多科学发现和工程创新的关键。然而，对更强计算能力的需求永远不会停止。在更大规模的机器上需要更多的计算能力来解开科学之谜。*消息传递接口(MPI)是HPC系统中通信的事实标准，也是迄今为止大型科学和工程应用程序使用的主要并行编程模型。这类应用程序中的进程在通过互连网络彼此广泛通信的同时，基于其本地数据进行计算。MPI已被证明是可伸缩的，并在当前系统中平稳过渡。然而，在具有大规模并行性、高度层次化的体系结构和通信通道、每个核的内存较小和异构性的极端规模系统上，互联网络和通信系统软件将面临巨大的压力，以提供所需的性能和可扩展性。这项研究旨在解决极端规模系统上高性能和可扩展的通信子系统面临的挑战。这项拟议的研究具有很高的原创性和创新性，因为它解决了MPI和混合MPI+X编程模式下高性能通信和系统软件的关键问题。这样的研究将为业界采用该技术铺平道路。*这项研究的结果将与加拿大的各个部门相关，包括加拿大环境部、加拿大计算机公司、加拿大基因组科学中心、汽车和石油/天然气行业，并最终与加拿大公众有关。预计这项研究的结果将对目标社区产生重大影响，并将为未来的研究带来新的方向。在这样一个关键和快节奏的领域，这项研究的成果将使加拿大保持在科学技术的前沿。拟议的研究是培训HQP的理想选择，因为它有坚实的基础，可以立即转化为实际应用和实施。HPC和网络领域的毕业生需求量很大，所培养的HQP将在学术界和工业界的工作竞争中处于有利地位。

High-Performance Computing (HPC) is used to tackle computationally-intensive problems in fields as diverse as green energy and biofuels, cancer research and drug discovery, weather forecasting and climate change, seismic processing for oil and gas, genomics and bioinformatics, astrophysics, material science, automotive, defense, data mining and analytics, and financial computing. It is the key to many scientific discoveries and engineering innovations. However, the demand for more computational power is never ending. Far more computational power on much larger-scale machines is required to unravel the scientific mysteries.***The Message-Passing Interface (MPI) is the de facto standard for communication in HPC systems, and by far the dominant parallel programming model used by large-scale scientific and engineering applications. Processes in such applications compute on their local data while extensively communicating with each other through the interconnection networks. MPI has proved to be scalable and is smoothly transitioning in the current systems. However, on extreme-scale systems that are characterized by massive parallelism, highly hierarchical architectures and communication channels, smaller memory per core and heterogeneity, there will be immense pressure on the interconnection networks and communication system software to deliver the required performance and scalability. This research seeks to address the challenges for high-performance and scalable communication subsystems on extreme-scale systems. The proposed research is highly original and innovative in the sense that it addresses key questions in high-performance communications and system software in MPI and hybrid MPI+X programming models. Such research will pave the way for adoption by industry. ***The outcome of this research will be relevant to various sectors in Canada, including Environment Canada, Compute Canada, Canada Genome Sciences Centre, automotive and oil/gas industries, and ultimately the Canadian public at large. It is expected that the findings from this research will have significant impact on the target community, and that it will lead to new directions for future research. In such a key and fast-paced field, the results of this research will keep Canada at the forefront of science and technology. The proposed research is ideal for training HQP in that it has a strong foundation that translates immediately into practical applications and implementations. There is a high demand for graduates in HPC and networking, and the HQP trained will be well positioned to compete for jobs in academia and industry.**