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Circuit topology and synthesis flow co-design for the development of computational ReRAM
Authors
Carlos Fernandez Hernandez
Jose Antonio Rubio Sola
Ioannis Vourkas
Publication date
1 January 2022
Publisher
'Institute of Electrical and Electronics Engineers (IEEE)'
Doi
Abstract
© 2022 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.Emerging memory technologies will play a decisive role in the quest for more energy-efficient computing systems. Computational ReRAM structures based on resistive switching devices (memristors) have been explored for in-memory computations using the resistance of ReRAM cells for storage and for logic I/O representation. Such approach presents three major challenges: the support for a memristor-oriented logic style, the ad-hoc design of memory array driving circuitry for memory and logic operations, and the development of dedicated synthesis tools to instruct the multi-level operations required for the execution of an arbitrary logic function in memory. This work contributes towards the development of an automated design flow for ReRAM-based computational memories, highlighting some important HW-SW co-design considerations. We briefly present a case study concerning a synthesis flow for a nonstateful logic style and the co-design of the underlying 1T1R crossbar array driving circuit. The prototype of the synthesis flow is based on the ABC tool and the Z3 solver. It executes fast owing to the level-by-level mapping of logic gates. Moreover, it delivers a mapping that minimizes the logic function latency through parallel logic operations, while also using the less possible ReRAM cells.Supported by Synopsys, Chile, by the Chilean grants FONDECYT Regular 1221747 and ANID-Basal FB0008, and by the Spanish MCIN/AEI/10.13039/501100011033 grant PID2019-103869RB-C33Peer ReviewedPostprint (author's final draft
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Last time updated on 17/02/2023