Inproceedings,

Compiler-Assisted Kernel Selection for FPGA-based Near-Memory Computing Platforms

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Proceedings - 31st IEEE International Symposium on Field-Programmable Custom Computing Machines, FCCM 2023, page 222. United States of America, Institute of Electrical and Electronics Engineers Inc., (2023)Publisher Copyright: © 2023 IEEE.; 31st IEEE International Symposium on Field-Programmable Custom Computing Machines, FCCM 2023 ; Conference date: 08-05-2023 Through 11-05-2023.
DOI: 10.1109/FCCM57271.2023.00050

Abstract

The speed of modern computing systems has improved significantly, thanks to advances in CMOS technology. However, the memory bandwidth of DRAM has not kept pace with these improvements in terms of latency and energy consumption, which is known as the memory wall 1. FPGAs with high-bandwidth memory (HBM) provide significantly improved performance on memory-intensive tasks, such as graph processing and machine learning. By leveraging 3D-stacked DRAM memory on FPGAs, it is possible to realize the Near-Memory Computing (NMC) paradigm, which involves offloading some kernels to be processed close to the memory. While there have been many studies on NMC accelerators, there is no established method for determining which application kernels are suitable for execution near the HBM. To fully realize the potential of FPGA-HBM architectures, it is important to identify offloading candidates without relying on programmers' knowledge. However, this is a non-trivial task due to the complexity of modern applications. To address this issue, we propose a compiler-assisted tool-flow for the automatic selection of kernels to be offloaded.

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