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  4. BLADE: A BitLine Accelerator for Devices on the Edge
 
conference paper

BLADE: A BitLine Accelerator for Devices on the Edge

Simon, William Andrew  
•
Qureshi, Yasir Mahmood  
•
Levisse, Alexandre Sébastien Julien  
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May 9, 2019
Proceedings of 29th Edition of the ACM Great Lakes Symposium on VLSI (GLSVLSI 2019)
29th Edition of the ACM Great Lakes Symposium on VLSI (GLSVLSI 2019)

The increasing ubiquity of edge devices in the consumer market, along with their ever more computationally expensive workloads, necessitate corresponding increases in computing power to support such workloads. In-memory computing is attractive in edge devices as it reuses preexisting memory elements, thus limiting area overhead. Additionally, in-SRAM Computing (iSC) efficiently performs computations on spatially local data found in a variety of emerging edge device workloads. We therefore propose, implement, and benchmark BLADE, a BitLine Accelerator for Devices on the Edge. BLADE is an iSC architecture that can perform massive SIMD-like complex operations on hundreds to thousands of operands simultaneously. We implement BLADE in 28nm CMOS and demonstrate its functionality down to 0.6V, lower than any conventional state-of-the-art iSC architecture. We also benchmark BLADE in conjunction with a full Linux software stack in the gem5 architectural simulator, providing a robust demonstration of its performance gain in comparison to an equivalent embedded processor equipped with a NEON SIMD co-processor. We benchmark BLADE with three emerging edge device workloads, namely cryptography, high efficiency video coding, and convolutional neural networks, and demonstrate 4x, 6x, and 3x performance improvement, respectively, in comparison to a baseline CPU/NEON processor at an equivalent power budget.

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Type
conference paper
DOI
10.1145/3299874.3317979
Author(s)
Simon, William Andrew  
Qureshi, Yasir Mahmood  
Levisse, Alexandre Sébastien Julien  
Zapater Sancho, Marina  
Atienza Alonso, David  
Date Issued

2019-05-09

Published in
Proceedings of 29th Edition of the ACM Great Lakes Symposium on VLSI (GLSVLSI 2019)
ISBN of the book

978-1-4503-6252-8/19/05

Total of pages

6

Subjects

In-memory processing

•

In-SRAM processing

•

Bitline computing

•

Edge computing

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
ESL  
Event nameEvent placeEvent date
29th Edition of the ACM Great Lakes Symposium on VLSI (GLSVLSI 2019)

Tysons Corner, VA, USA

May 9-11, 2019

Available on Infoscience
March 12, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/155531
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