Proteus: Achieving High-Performance Processing-Using-DRAM with Dynamic Bit-Precision, Adaptive Data Representation, and Flexible Arithmetic
Geraldo Francisco de Oliveira Junior, Mayank Kabra, Yuxin Guo, Kangqi Chen, A. Giray Yağlıkçı, Melina Soysal, Mohammad Sadrosadati, Joaquín Olivares, Saugata Ghose, Juan Gómez-Luna, Onur Mutlu · 2025
Processing-using-DRAM (PUD) is a paradigm where the analog operational properties of DRAM are used to perform bulk logic operations.While PUD promises high throughput at low energy and area cost, we uncover three limitations of existing PUD approaches that lead to significant inefficiencies: (i) static data representation, i.e., two's complement with fixed bit-precision, leading to unnecessary computation over useless (i.e., inconsequential) data; (ii) support for only throughput-oriented execution, where the high latency of