Reliability Analysis of Memristor Crossbar Routers: Collisions and On/off Ratio Requirement
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Date
2022
Publication Type
Conference Paper
ETH Bibliography
yes
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Abstract
Memristors are commonly used in crossbar arrays as “in-memory computing” elements to solve the von-Neumann bottleneck problem. However, they can also be used as “in-memory routing” elements to configure on-chip interconnection schemes and route signals among computing elements in configurable multi-core neuromorphic processors. While there has been a significant focus on the use of memristive devices as in-memory computing elements, to date, studies on the fundamental reliability properties of memristors as routing elements are still missing. In this paper, we analyze the reliability issues of using these devices in routing crossbar arrays, caused by sharing routing resources (collisions), and undesired pulses due to the leakage paths (on/off ratio requirement). We show that there is a trade-off between routing collision probability and the degree of connectivity (i.e., fan-in) of the receivers sharing routing channels. We provide specifications and guidelines based on a theoretical analysis for engineering the properties of memristive devices, and for designing routing systems based on memristor crossbars.
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Publication status
published
Editor
Book title
2022 29th IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Journal / series
Volume
Pages / Article No.
9970901
Publisher
IEEE
Event
29th IEEE International Conference on Electronics, Circuits and Systems (ICECS 2022)
Edition / version
Methods
Software
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Date collected
Date created
Subject
Memristor crossbar; Router; Reliability; Collision; On/off ratio
Organisational unit
09699 - Indiveri, Giacomo / Indiveri, Giacomo