Campus Units

Electrical and Computer Engineering

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

8-2001

Journal or Book Title

IEEE Transactions on Very Large Scale Integration (VLSI) Systems

Volume

9

Issue

4

First Page

509

Last Page

523

DOI

10.1109/92.931228

Abstract

A considerable portion of a microprocessor chip is dedicated to cache memory. However, not all applications need all the cache storage all the time, especially the computing bandwidth-limited applications. In addition, some applications have large embedded computations with a regular structure. Such applications may be able to use additional computing resources. If the unused portion of the cache could serve these computation needs, the on-chip resources would be utilized more efficiently. This presents an opportunity to explore the reconfiguration of a part of the cache memory for computing. Thus, we propose adaptive balanced computing (ABC)-dynamic resource configuration on demand from application-between memory and computing resources. In this paper, we present a cache architecture to convert a cache into a computing unit for either of the following two structured computations: finite impulse response and discrete/inverse discrete cosine transform. In order to convert a cache memory to a function unit, we include additional logic to embed multibit output lookup tables into the cache structure. The experimental results show that the reconfigurable module improves the execution time of applications with a large number of data elements by a factor as high as 50 and 60.

Comments

This is a manuscript of an article published as Kim, Huesung, Arun K. Somani, and Akhilesh Tyagi. "A reconfigurable multifunction computing cache architecture." IEEE Transactions on Very Large Scale Integration (VLSI) Systems 9, no. 4 (2001): 509-523. DOI: 10.1109/92.931228. Posted with permission.

Rights

© 2001 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Copyright Owner

IEEE

Language

en

File Format

application/pdf

Published Version

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