The Ouroboros of Memristors: Neural Networks Facilitating Memristor Programming
arxiv(2024)
摘要
Memristive devices hold promise to improve the scale and efficiency of
machine learning and neuromorphic hardware, thanks to their compact size, low
power consumption, and the ability to perform matrix multiplications in
constant time. However, on-chip training with memristor arrays still faces
challenges, including device-to-device and cycle-to-cycle variations, switching
non-linearity, and especially SET and RESET asymmetry. To combat device
non-linearity and asymmetry, we propose to program memristors by harnessing
neural networks that map desired conductance updates to the required pulse
times. With our method, approximately 95
relative percentage difference of +-50
one attempt. Our approach substantially reduces memristor programming delays
compared to traditional write-and-verify methods, presenting an advantageous
solution for on-chip training scenarios. Furthermore, our proposed neural
network can be accelerated by memristor arrays upon deployment, providing
assistance while reducing hardware overhead compared with previous works.
This work contributes significantly to the practical application of
memristors, particularly in reducing delays in memristor programming. It also
envisions the future development of memristor-based machine learning
accelerators.
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