Parallel I/O Library (PIO)

The Parallel I/O (PIO) library has been developed over several years to improve the ability of component models of the Community Earth System Model (CESM) to perform I/O. However, we believe that the interface is sufficiently general to be useful to a broader spectrum of applications. The focus of development has been on backend tools that use the NetCDF file format.

The user's guide provides information about the PIO library and examples on how it can be used. Help is available through the github repository issues and DiscussCESM forums.

Current development code for the PIO library is available on the public github repository.

Current Release

• PIO2 - Source code
• PIO2 - User's Guide

Previous Release

Please note: PIO1 is no longer actively being developed.

• PIO1 - Source code (gzipped tar file)
• PIO1 - User's Guide