These three files are used for enabling the parallel PEST to run on one of the DOE operated supercomputers, called Edison http://www.nersc.gov/users/computational-systems/edison/

wrftest.p is the script for submitting the job to Edison. This script calls runwrf1.sh, which calls runwrf2.sh

For the particular exercise, we use 71 nodes with 24 cores per nodes to run parallel PEST for calibating a WRF-Hydro simulation case over Midwestern United States. We have 35 slaves to conduct the PEST, each slave uses 2 nodes. 1 node out of the 71 nodes is assigned for the master of PEST.