Fort.18: Domain Decomposition Data

Overview

The fort.18 file is a specialized file used specifically for parallel (MPI) execution of ADCIRC, commonly known as PADCIRC. This file is automatically generated by the adcprep executable and should not be manually created or modified.

Location and Generation

Unlike most ADCIRC input files that reside in the main run directory, the fort.18 file is distributed across multiple locations:

  • Generated by: adcprep executable

  • Location: One copy exists in each PE* subdirectory (e.g., PE0000, PE0001, etc.)

  • Timing: Created during the pre-processing phase, before launching a parallel ADCIRC run