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Foreword to the Special Issue on Processors, Interconnects, Storage, and Caches for Exascale Systems
Author(s) -
Acacio Manuel E.,
Sahuquillo Julio
Publication year - 2019
Publication title -
concurrency and computation: practice and experience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.309
H-Index - 67
eISSN - 1532-0634
pISSN - 1532-0626
DOI - 10.1002/cpe.5408
Subject(s) - exascale computing , computer science , context (archaeology) , computer architecture , architecture , interconnection , embedded system , supercomputer , operating system , computer network , art , paleontology , visual arts , biology
Exascale computing constitutes nowadays a significant challenge both for the academia and the industry. Although traditional computer systems continue to make important advances, achieving exascale computing requires mass customization. With this aim, several ongoing research projects are focusing on different architectural (computing boards or nodes, interconnects, storage, etc) issues of future exascale systems. Most of them devise heterogeneous computing boards consisting of CPUs (high performance and/or low power), FPGAs, GPUs, etc, sharing a common memory hierarchy. In this context, efficient intraand inter-board within the same rack and inter-rack interconnect with the memory hierarchies are required. Also, performance and reliability design constraints for exascale storage systems rise significant challenges for HPC system designers. High performance I/O must be also faced because storing and retrieving such large amounts of data can greatly affect the overall performance of applications. Finally, it is important to characterize the demands that exascale applications exert on the different components of an exascale system. The goal of this special issue is to promote research on all of these aspects related to exascale computing. Six papers that address several components of exascale systems were carefully selected from open submissions.