Many recent efforts have shown that in-network computing can benefit various datacenter applications. In this paper, we explore a relatively less-explored domain which we argue can benefit from in-network computing: scientific workloads in high-performance computing. By analyzing canonical examples of HPC applications, we observe unique opportunities and challenges for exploiting in-network computing to accelerate scientific workloads. In particular, we find that the dynamic and demanding nature of scientific workloads is the major obstacle to the adoption of in-network approaches which are mostly open-loop and lack runtime feedback. In this paper, we present NSinC (Network-accelerated ScIeNtific Computing), an architecture for fully unleashing the potential benefits of in-network computing for scientific workloads by providing closed-loop runtime feedback to in-network acceleration services. We outline key challenges in realizing this vision and a preliminary design to enable acceleration for scientific applications.
@article{arxiv.2009.02457,
title = {Unleashing In-network Computing on Scientific Workloads},
author = {Daehyeok Kim and Ankush Jain and Zaoxing Liu and George Amvrosiadis and Damian Hazen and Bradley Settlemyer and Vyas Sekar},
journal= {arXiv preprint arXiv:2009.02457},
year = {2020}
}