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Published in:
Introduction to Stochastic Computing Read chapter Read first chapter

2019 | OriginalPaper | Chapter

RRAM Solutions for Stochastic Computing

Authors : Phil Knag, Siddharth Gaba, Wei Lu, Zhengya Zhang

Published in: Stochastic Computing: Techniques and Applications

Publisher: Springer International Publishing

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Abstract

Stochastic computing is a low-cost form of computing. To perform stochastic computing, inputs need to be converted to stochastic bit streams using stochastic number generators (SNGs). The random number generation presents a significant overhead, which partially defeats the benefits of stochastic computing. In this work, we show that stochastic computing can be implemented in memory, through temporally varying resistive RAM (RRAM) devices. We can take advantage of the temporal variations in the resistance switching of RRAM devices for stochastic computing. By adopting a group write approach, an RRAM memory can be used to generate random bit streams and reshuffle bit streams, accomplishing two essential functions for stochastic computing without expensive SNGs. We demonstrate in-memory stochastic computing in two test applications, a gradient descent solver and a k-means clustering processor.

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Metadata
Title
RRAM Solutions for Stochastic Computing
Authors
Phil Knag
Siddharth Gaba
Wei Lu
Zhengya Zhang
Copyright Year
2019
Book
Stochastic Computing: Techniques and Applications

Print ISBN: 978-3-030-03729-1

Electronic ISBN: 978-3-030-03730-7

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-030-03730-7_8