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We present a high-level and accessible Application Programming Interface(API) for the solution of field equations on the Cerebras Systems Wafer-ScaleEngine (WSE) with over two orders of magnitude performance gain relative totraditional distributed computing approaches. The domain-specific API is calledthe WSE Field-equation API (WFA). The WFA outperforms OpenFOAM on NETL's Joule2.0 supercomputer by over two orders of magnitude in time to solution. Whilethis performance is consistent with hand-optimized assembly codes, the WFAprovides an easy-to-use, high-level Python interface that allows users to formand solve field equations effortlessly. We report here the WFA programmingmethodology and achieved performance on the latest generation of WSE, the CS-2.

Disruptive Changes in Field Equation Modeling: A Simple Interface for Wafer Scale Engines