Abstract
The design of specialized architectures for accelerating the inference procedure of Deep Neural Networks (DNNs) is a booming area of research nowadays. While first-generation rigid accelerator proposals used simple fixed dataflows tailored for dense DNNs, more recent architectures have argued for flexibility to efficiently support a wide variety of layer types, dimensions, and sparsity. As the complexity of these accelerators grows, the analytical models currently being used prove unable to capture execution-time subtleties, thus resulting inexact in many cases. We present STONNE ( <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><u>S</u>imulation <u>TO</u>ol of <u>N</u>eural <u>N</u>etwork <u>E</u>ngines</i> ), a cycle-level microarchitectural simulator for state-of-the-art rigid and flexible DNN inference accelerators that can plug into any high-level DNN framework as an accelerator device, and perform full-model evaluation of both dense and sparse real, unmodified DNN models.
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