Composable Heterogeneous Computing Systems

可组合异构计算系统

• 批准号: RGPIN-2021-04151
• 负责人: Shannon, Lesley
• 金额: $ 2.84万
• 依托单位: Simon Fraser University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=752992
• 关键词: Composable; Heterogeneous; Computing; Systems

As computers become more powerful, revolutionary technologies (eg Video-calling, Artificial Intelligence) are realized. However, the increased computing capacity needed to enable new disruptive technologies (eg accurate weather, genomics and materials science modelling) is not attainable using general-purpose processors due to energy constraints. Instead, heterogeneous Domain-Specific Architectures (DSAs) can provide the needed high-performance computing; but the design space is huge and complex, especially as chip fabrication technologies are moving from 2D planar designs to emerging 3D die-stacking solutions. We propose to develop an open-source, extensible, flexible experimental framework for heterogeneous systems that will allow designers to evaluate and reason about new compute architectures, runtime services and programming models. No such framework exists today, but it is essential for researchers to harness the full potential of DSAs implemented on modern technologies. Motivated by emerging applications, this program lies at the intersection of novel compilation technologies and advanced computing platforms enabled by modern fabrication technology. The proposed heterogeneous compute framework for multi-application workloads is a key first step to enable the design of these complex heterogeneous systems and provide the necessary abstractions to make them programmable by non-experts. It requires 3 components: a compilation flow, runtime support, and hardware model(s). The compilation flow needs to identify multiple mappings for individual tasks to improve runtime sharing of computing resources (CRs). When the Heterogeneous Compute Platform (HCP) includes reconfigurable hardware (e.g. an FPGA), it also needs to identify potential custom instructions and Hardware Accelerators and how they might be used and shared to improve performance and energy consumption across the application workload. Runtime services (eg an OS) are needed to schedule tasks and exploit workload CR sharing at runtime. Finally, the HCP's design complexity makes it extremely difficult to validate correctness experimentally. Hardware models that can be used to guarantee correctness of both the hardware platform and the software it executes are crucial to ensure correct operations and the validity of research results. These three components present numerous questions and challenges and form the foundation to collectively realize this DG's objective in the next five years. Combined with Dr. Shannon's pattern and process of mentoring and sponsoring her students into their future careers while ensuring and equitable, diverse and inclusive training environment, this program with the resulting framework will result in HQP with a combination of software and hardware skills that will be valuable to companies that develop next-generation compute systems and in application areas that require high-end compute solutions (e.g. biomedical and environmental technologies, defense, etc.).

随着计算机变得越来越强大，革命性的技术（例如，视频呼叫，人工智能）实现了。但是，由于能量限制，无法使用通用处理器实现新的破坏性技术所需的计算能力（例如准确的天气，基因组学和材料科学建模）。取而代之的是，异质域特异性体系结构（DSA）可以提供所需的高性能计算；但是，设计空间是巨大而复杂的，尤其是当芯片制造技术从2D平面设计转变为新兴的3D堆叠解决方案时。我们建议为异构系统开发一个开源，可扩展，灵活的实验框架，该框架将允许设计人员评估和推理新的计算体系结构，运行时服务和编程模型。今天没有这样的框架，但是研究人员必须利用现代技术实施的DSA的全部潜力至关重要。该程序是由新兴应用程序的动机，是由现代制造技术实现的新型编译技术和高级计算平台的交集。提出的用于多应用工作负载的异质计算框架是实现这些复杂的异质系统并提供必要的抽象以使它们可以通过非专家编程的必要抽象的关键第一步。它需要3个组件：汇编流，运行时支持和硬件模型。汇编流需要确定单个任务的多个映射，以改善计算资源（CRS）的运行时共享。当异质计算平台（HCP）包括可重构硬件（例如FPGA）时，它还需要确定潜在的自定义说明和硬件加速器，以及如何使用和共享它们以提高整个应用程序工作中的性能和能源消耗。需要运行时服务（例如OS）来安排任务并在运行时利用工作负载CR共享。最后，HCP的设计复杂性使实验验证正确性非常困难。可用于确保硬件平台及其执行软件的正确性的硬件模型对于确保正确操作和研究结果的有效性至关重要。这三个组成部分提出了许多问题和挑战，并构成了基础，以在未来五年内集体实现该DG的目标。再加上香农博士的指导和赞助学生的模式和过程，同时确保了他们的未来职业，同时确保了与之结合的框架，该计划将导致HQP与软件和硬件技能结合在一起，这些软件和硬件技能对于需要高度端内宣传的应用程序和环境等方面的应用程序和范围的应用程序（E.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.G.）。