Energy-Efficient Accelerator Design With Tile-Based Row-Independent Compressed Memory for Sparse Compressed Convolutional Neural Networks

IEEE Open Journal of Circuits and Systems(2021)

引用 1|浏览7
暂无评分
摘要
Deep convolutional neural networks (CNNs) are difficult to be fully deployed to edge devices because of both memory-intensive and computation-intensive workloads. The energy efficiency of CNNs is dominated by convolution computation and off-chip memory (DRAM) accesses, especially for DRAM accesses. In this article, an energy-efficient accelerator is proposed for sparse compressed CNNs by reducing DRAM accesses and eliminating zero-operand computation. Weight compression is utilized for sparse compressed CNNs to reduce the required memory capacity/bandwidth and a large portion of connections. Thus, a tile-based row-independent compression (TRC) method with relative indexing memory is adopted for storing none-zero terms. Additionally, the workloads are distributed based on channels to increase the degree of task parallelism, and all-row-to-all-row non-zero element multiplication is adopted for skipping redundant computation. The simulation results over the dense accelerator show that the proposed accelerator achieves $1.79\times$ speedup and reduces 23.51%, 69.53%, 88.67% on-chip memory size, energy, and DRAM accesses of VGG-16.
更多
查看译文
关键词
Sparse,CNN,relative indexing memory
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要