High-Throughput Multi-Threaded Sum-Product Network Inference in the Reconfigurable Cloud

Large cloud providers have started to make powerful FPGAs available as part of their public cloud offers. One promising application area for this kind of instances is the acceleration of machine learning tasks. This work presents an accelerator architecture that uses multiple accelerator cores for the inference in so-called Sum-Product Networks and complements it with a host software interface that overlaps data-transfer and actual computation. The evaluation shows that, the proposed architecture deployed to Amazon AWS F1 instances is able to outperform a 12-core Xeon processor by a factor of up to 1.9x and a Nvidia Tesla V100 GPU by a factor of up to 6.6x.