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JSSC 2023第3期Memory28nmSRAMCIM

TTCIM A Tensor-Train In-Memory-Computing Processor Using Bit-Level-Sparsity Opti

提出TT@CIM处理器,通过张量分解和位级稀疏优化提升内存计算能效
28nm CMOS, 5.99-to-691.13-TOPS/W峰值能效
内存计算张量分解位级稀疏量化能效优化
TTD-CIM匹配数据流最大化CIM利用率
位级稀疏优化CIM宏降低功耗
可变精度量化方法提升性能
Abstract
Computing-in-memory (CIM) is an attractive approach for energy-efficient deep neural network (DNN) processing, especially for low-power edge devices. However, today’s typical DNNs usually exceed CIM-static random access memory (SRAM) capacity. The int roduced off-chip communica- tion covers up the benefits of CIM technique, meaning that CIM processors still encounter the memory bottleneck. To eliminate this bottleneck, we propose a CIM processor, called TT@CIM, which applies the tensor-train decom