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n-bit Data Parallel Spin Wave Logic Gate_preprint.pdf (570.4 kB)

n-bit Data Parallel Spin Wave Logic Gate

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posted on 13.09.2021, 19:21 by Abdulqader MahmoudAbdulqader Mahmoud, Frederic Vanderveken, Florin Ciubotaru, Christoph Adelmann, Sorin Cotofana, Said Hamdioui
Due to their very nature, Spin Waves (SWs) created in the same waveguide, but with different frequencies, can coexist while selectively interacting with their own species only. The absence of inter-frequency interferences isolates input data sets encoded in SWs with different frequencies and creates the premises for simultaneous data parallel SW based processing without hardware replication or delay overhead. In this paper we leverage this SW property by introducing a novel computation paradigm, which allows for the parallel processing of n-bit input data vectors on the same basic SW based logic gate. Subsequently, to demonstrate the proposed concept, we present 8-bit parallel 3-input Majority gate implementation and validate it by means of Object Oriented MicroMagnetic Framework (OOMMF) simulations. To evaluate the potential benefit of our proposal we compare the 8-bit data parallel gate with equivalent scalar SW gate based implementation. Our evaluation indicates that 8-bit data 3-input Majority gate implementation requires 4.16x less area than the scalar SW gate based equivalent counterpart while preserving the same delay and energy consumption figures.

Funding

This work has received funding from the European Union's Horizon 2020 research and innovation program within the FET-OPEN project CHIRON under grant agreement No. 801055.

History

Email Address of Submitting Author

abdulqader.mahmoud@hotmail.com

ORCID of Submitting Author

0000-0002-7507-5993

Submitting Author's Institution

Delft University of Technology

Submitting Author's Country

Netherlands