Mapping Spiking Neural Networks to Neuromorphic Hardware

Neuromorphic hardware implements biological neurons and synapses to execute a spiking neural network (SNN)-based machine learning. We present SpiNeMap, a design methodology to map SNNs to crossbar-based neuromorphic hardware, minimizing spike latency and energy consumption. SpiNeMap operates in two...

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Bibliographic Details
Published in:IEEE transactions on very large scale integration (VLSI) systems 2020-01, Vol.28 (1), p.76-86
Main Authors: Balaji, Adarsha, Catthoor, Francky, Das, Anup, Wu, Yuefeng, Huynh, Khanh, Dell'Anna, Francesco G., Indiveri, Giacomo, Krichmar, Jeffrey L., Dutt, Nikil D., Schaafsma, Siebren
Format: Article
Language:English
Subjects:
Clustering
Design methodology
Distortion
Energy conservation
Energy consumption
Energy management
Hardware
Heuristic methods
Interspike interval (ISI)
Machine learning
Mapping
Neural networks
Neuromorphic computing
Neuromorphics
Neurons
Spikes
Spiking
spiking neural network (SNN)
Synapses
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Summary:Neuromorphic hardware implements biological neurons and synapses to execute a spiking neural network (SNN)-based machine learning. We present SpiNeMap, a design methodology to map SNNs to crossbar-based neuromorphic hardware, minimizing spike latency and energy consumption. SpiNeMap operates in two steps: SpiNeCluster and SpiNePlacer. SpiNeCluster is a heuristic-based clustering technique to partition an SNN into clusters of synapses, where intracluster local synapses are mapped within crossbars of the hardware and intercluster global synapses are mapped to the shared interconnect. SpiNeCluster minimizes the number of spikes on global synapses, which reduces spike congestion and improves application performance. SpiNePlacer then finds the best placement of local and global synapses on the hardware using a metaheuristic-based approach to minimize energy consumption and spike latency. We evaluate SpiNeMap using synthetic and realistic SNNs on a state-of-the-art neuromorphic hardware. We show that SpiNeMap reduces average energy consumption by 45% and spike latency by 21%, compared to the best-performing SNN mapping technique.
ISSN:1063-8210
1557-9999
DOI:10.1109/TVLSI.2019.2951493