RISC-V for HPC: Where we are and where we need to go

TL;DR

This paper reviews the current status of RISC-V in high-performance computing, sharing insights from a community testbed and highlighting key areas for future development to promote adoption.

Contribution

It provides a comprehensive overview of RISC-V's role in HPC and identifies critical future priorities based on practical experience and community involvement.

Findings

Established a RISC-V testbed for HPC research

Summarized current RISC-V HPC ecosystem status

Outlined high-priority areas for future RISC-V HPC development

Abstract

Funded by the UK ExCALIBUR H&ES exascale programme, since early 2022 we have provided a RISC-V testbed for HPC to offer free access for scientific software developers to experiment with RISC-V for their workloads. Based upon our experiences of providing access to RISC-V for the HPC community, and our involvement with the RISC-V community at large, in this extended abstract we summarise the current state of RISC-V for HPC and consider the high priority areas that should be addressed to help drive adoption.