Relative Efficiency of Memristive and Digital Neuromorphic Crossbars

Autor: Christopher D. Krieger, Mark McLean, David J. Mountain
Rok vydání: 2018
Předmět:
Zdroj: Proceedings of the International Conference on Neuromorphic Systems.
DOI: 10.1145/3229884.3229887
Popis: Machine learning is becoming an increasingly large consumer of compute resources. This demand has led to interest in neuromorphic processors (NMPs) that can quickly and efficiently perform learning and inference tasks. Both analog and digital NMPs have been proposed in literature, with many papers indicating that memristor based analog designs provide significant efficiency gains over digital approaches. In this work, we use extensive SPICE simulations to compare the energy efficiency and throughput per area of basic analog and digital neuromorphic processors after architectural differences have been factored out. We find that for our test system, memristor-based analog designs offer about four times better throughput per watt for computation than digital systems and that they provide nearly ten times the throughput per area. If these designs were used in a complete system, including memory and I/O, the gains from using memristors would be small.
Databáze: OpenAIRE