Comparing Loihi with a SpiNNaker 2 prototype on low-latency keyword spotting and adaptive robotic control
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
We implemented two neural network based benchmark tasks on a prototype chip of the second-generation SpiNNaker (SpiNNaker 2) neuromorphic system: keyword spotting and adaptive robotic control. Keyword spotting is commonly used in smart speakers to listen for wake words, and adaptive control is used in robotic applications to adapt to unknown dynamics in an online fashion. We highlight the benefit of a multiply-accumulate (MAC) array in the SpiNNaker 2 prototype which is ordinarily used in rate-based machine learning networks when employed in a neuromorphic, spiking context. In addition, the same benchmark tasks have been implemented on the Loihi neuromorphic chip, giving a side-by-side comparison regarding power consumption and computation time. While Loihi shows better efficiency when less complicated vector-matrix multiplication is involved, with the MAC array, the SpiNNaker 2 prototype shows better efficiency when high dimensional vector-matrix multiplication is involved.
Details
Original language | English |
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Article number | 014002 |
Journal | Neuromorphic computing and engineering |
Volume | 1 |
Issue number | 1 |
Publication status | Published - 1 Sept 2021 |
Peer-reviewed | Yes |
External IDs
ORCID | /0000-0002-6286-5064/work/160048712 |
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Keywords
ASJC Scopus subject areas
Keywords
- adaptive robotic control, keyword spotting, Loihi, MAC array, neuromorphic computing, SpiNNaker