Robert Ross received his Ph.D. in Computer Engineering from Clemson University in 2000. Following this he joined the Mathematics and Computer Science Division at Argonne National Laboratory. Rob’s research interests are in system software for high performance computing systems, in particular parallel file systems and I/O and message passing libraries. Rob has been involved in Linux cluster computing since 1995, when he first tested PVFS on early Beowulf systems at NASA Goddard Space Flight Center. He is the primary author of the PVFS parallel file system and lead architect of the PVFS2 parallel file system. He is an active maintainer of the ROMIO MPI-IO library and oversees the Parallel netCDF high-level I/O library development. Rob is a member of the MPICH2 development team awarded the R&D 100 award in 2005, and was a recipient of the 2004 Presidential Early Career Award for Scientists and Engineers.