A parallel workflow implementation for PEST version 13.6 in high-performance computing for WRF-Hydro version 5.0: a case study over the Midwestern United States

This study ported the parallel PEST to High Performance Computing (HPC) clusters and adapted it to work with the The Weather Research and Forecasting Hydrological (WRF-Hydro) modeling system. The porting involved writing scripts to modify the workflow for different workload managers and job schedulers, as well as developing code to connect parallel-PEST to WRF-Hydro. We developed a case study using a flood in the midwestern United States in 2013 to test the operational feasibility and computational benefits of the HPC-enabled parallel PEST linked to WRF-Hydro.

The files include (1) PESTCode.zip, the original code of PEST with a slight modification, see ReadMe file; (2) ScriptsForEdison.zip, the scripts that customized for PEST to run on Edison, one of U.S. Department of Energy operated supercomputers; (3) PESTFiles.zip, the four types of files that are required by parallel PEST and custom-designed for WRF-Hydro.