Features

• Full Fortran 90 interface, partial C/C++ interface
• Fortran 90 Reference Manual and User's Guide
• Runs on most high performance parallel computing platforms, including IBM, many Linux variants, Cray, Compaq, more (see here for the full list)
• Supports MPI, OpenMP and hybrid user codes
• 2500+ tests bundled with source distribution
• Free user support
• Active user community

Superstructure for coupling Earth system components:

• Component, State and Coupler software that wraps user code with minimal overhead
• Simple drivers that users can modify
• Sequential or concurrent execution of components
• Single executable capability
• Limited multiple executable capability

Infrastructure for building Earth system components:

• Time Manager that includes Gregorian, 360 day, no-leap, Julian, and other calendars, as well as a broad range of time functions
• Data structures for storage and manipulation of Arrays, Fields, and Bundles of Fields on the same grid.
• Parallel data communications and regridding software
• Message logging tools
• Resource file manager