SPX64

Author:

Singh Abhishek1ORCID,Dave Shail2,Zardoshti Pantea1ORCID,Brotzman Robert3,Zhang Chao1,Guo Xiaochen1,Shrivastava Aviral2,Tan Gang3,Spear Michael1

Affiliation:

1. Lehigh University

2. Arizona State University

3. Pennsylvania State University

Abstract

General-purpose computing systems employ memory hierarchies to provide the appearance of a single large, fast, coherent memory. In special-purpose CPUs, programmers manually manage distinct, non-coherent scratchpad memories. In this article, we combine these mechanisms by adding a virtually addressed, set-associative scratchpad to a general purpose CPU. Our scratchpad exists alongside a traditional cache and is able to avoid many of the programming challenges associated with traditional scratchpads without sacrificing generality (e.g., virtualization). Furthermore, our design delivers increased security and improves performance, especially for workloads with high locality or that interact with nonvolatile memory.

Funder

NSF

Publisher

Association for Computing Machinery (ACM)

Subject

Hardware and Architecture,Information Systems,Software

Reference46 articles.

1. White Paper: Retpoline;Intel Corporation;A Branch Target Injection Mitigation. Technical Report,2018

2. CACTI 7

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