Remote Atomic Extension (RAE) for Scalable High Performance Computing

Wang, Xi; Williams, Brody; Leidel, John D.; Ehret, Alan; Kinsy, Michel A.; Chen, Yong

doi:10.1109/dac18072.2020.9218589

Cited by 4 publications

(2 citation statements)

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“…Recently, RISC-V ISA has been expanding and penetrating into the high-performance computing (HPC) industry and is expected to be used in applications such as weather forecasting, car crash simulation, material simulation, etc. Current research on the extension of RISC-V in HPC scenarios include global address space extension [8] and remote atomic extension [49]. Wang et al [8] proposed an Extended Base Global Address Space (xBGAS) extension.…”

Section: F High Performance Computingmentioning

confidence: 99%

“…However, the xBGAS extension does not provide support for cross-node atomic operations, which is an essential feature that is being sought after by emerging HPC applications. In order to fulfil the needs for global atomicity, a remote atomic extension (RAE) that is based on the xBGAS architecture has been proposed by work [49]. This RAE makes use of high-performance remote atomic operations in order to access objects that are spread across many shared data stores.…”

Section: F High Performance Computingmentioning

confidence: 99%

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RISC-V Instruction Set Architecture Extensions: A Survey

Cui

Qian

2023

IEEE Access

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RISC-V is an open-source and royalty-free instruction set architecture (ISA), which opens up a new era of processor innovation. RISC-V has the characteristics of modularization and extensibility, and explicitly supports domain-specific custom extensions. Nowadays, RISC-V is a popular ISA for embedded processors. However, there is still a gap between the capabilities of RISC-V and the requirements of various emerging computing scenarios (e.g., artificial intelligence, cloud computing). Recently, the RISC-V standards organization has continuously introduced new ISA extensions to meet the needs of advanced computing. There are also a variety of novel research proposed customized extensions of RISC-V for certain scenarios. As far as we know, there is a lack of a survey to systematically present the research progress of RISC-V ISA extensions. The goal of this paper is to provide a comprehensive survey on existing works about RISC-V ISA extensions. First, the application scenarios of RISC-V are introduced, and the requirements for ISA extensions are analyzed. Then, we survey the progress of official RISC-V ISA extension specification and recent research on RISC-V ISA extension. Finally, we highlight some possible future research opportunities on the RISC-V ISA extension.INDEX TERMS RISC-V, instruction set architecture, extensions, survey.

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Section: F High Performance Computingmentioning

confidence: 99%

Section: F High Performance Computingmentioning

confidence: 99%