Sigma: Compiling Einstein Summations to Locality-Aware Dataflow

Most dataflow accelerator compilers achieve high performance by mapping each node in a dataflow program to a dedicated hardware element on a dataflow accelerator. However, this approach misses critical data reuse optimizations required to exploit the data bandwidth from fine-grained memory elements, e.g., FIFOs and pipeline registers. Moreover, writing performant dataflow programs requires users to have domain expertise in the underlying dataflow accelerators.