OpenPiton4HPC: Optimizing OpenPiton Toward High-Performance Manycores

IF 3.7 2区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Journal on Emerging and Selected Topics in Circuits and Systems Pub Date : 2024-07-15 DOI:10.1109/JETCAS.2024.3428929
Neiel Leyva;Alireza Monemi;Noelia Oliete-Escuín;Guillem López-Paradís;Xabier Abancens;Jonathan Balkind;Enrique Vallejo;Miquel Moretó;Lluc Alvarez
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Abstract

In recent years, numerous multicore RISC-V platforms have emerged. Development frameworks such as OpenPiton are employed in designs that aim to scale to a large number of cores. While OpenPiton presents a large flexibility, supporting different requirements and processing cores, some of its design decisions result in designs that are not optimized for High-Performance Computing (HPC) requirements. This work presents OpenPiton4HPC, an extension and optimization of OpenPiton for high-performance manycores. The key contributions are enabling multiple memory controllers, supporting router bypassing and NoC concentration, adding support for configurable cache sizes and cache block sizes, and allowing configurable bus widths in the NoC and in the cache SRAMs. On a 64-core manycore architecture, these new features and optimizations provide a geometric mean speedup of 7.2x compared to the OpenPiton baseline.
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OpenPiton4HPC:优化 OpenPiton 以实现高性能 Manycores
近年来,出现了许多多核 RISC-V 平台。在旨在扩展到大量内核的设计中采用了 OpenPiton 等开发框架。虽然 OpenPiton 具有很大的灵活性,可支持不同的需求和处理内核,但其某些设计决策导致设计无法针对高性能计算(HPC)需求进行优化。这项工作介绍了 OpenPiton4HPC,它是 OpenPiton 针对高性能多核的扩展和优化。其主要贡献在于启用了多个内存控制器,支持路由器旁路和 NoC 集中,增加了对可配置缓存大小和缓存块大小的支持,并允许在 NoC 和缓存 SRAM 中配置总线宽度。在 64 核多核架构上,与 OpenPiton 基准相比,这些新功能和优化的几何平均速度提高了 7.2 倍。
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CiteScore
8.50
自引率
2.20%
发文量
86
期刊介绍: The IEEE Journal on Emerging and Selected Topics in Circuits and Systems is published quarterly and solicits, with particular emphasis on emerging areas, special issues on topics that cover the entire scope of the IEEE Circuits and Systems (CAS) Society, namely the theory, analysis, design, tools, and implementation of circuits and systems, spanning their theoretical foundations, applications, and architectures for signal and information processing.
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Introducing IEEE Collabratec Table of Contents IEEE Journal on Emerging and Selected Topics in Circuits and Systems Information for Authors IEEE Circuits and Systems Society Information IEEE Journal on Emerging and Selected Topics in Circuits and Systems Publication Information
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