Memristor‐Based Analog Computation and Neural Network Classification with a Dot Product Engine
Abstract
Using memristor crossbar arrays to accelerate computations is a promising approach to efficiently implement algorithms in deep neural networks. Early demonstrations, however, are limited to simulations or small‐scale problems primarily due to materials and device challenges that limit the size of the memristor crossbar arrays that can be reliably programmed to stable and analog values, which is the focus of the current work. High‐precision analog tuning and control of memristor cells across a 128 × 64 array is demonstrated, and the resulting vector matrix multiplication (VMM) computing precision is evaluated. Single‐layer neural network inference is performed in these arrays, and the performance compared to a digital approach is assessed. Memristor computing system used here reaches a VMM accuracy equivalent of 6 bits, and an 89.9% recognition accuracy is achieved for the 10k MNIST handwritten digit test set. Forecasts show that with integrated (on chip) and scaled memristors, a computational efficiency greater than 100 trillion operations per second per Watt is possible.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 10, 2018
- Source ID
- 10.1002/adma.201705914
Entities
People
- Can Li
- Catherine E. Graves
- Eric Montgomery
- Hao Jiang
- J. Joshua Yang
- John Paul Strachan
- Miao Hu
- Ning Ge
- Noraica Davila
- Qiangfei Xia
- R. Stanley Williams
- Yunning Li
Organizations
- HPQ
- Hp
- Intelligence Advanced Research Projects Activity
- Office of the Director of National Intelligence
- University of Massachusetts