A Split-Phase Interface for Parallel File Systems

Sanjay Khanna, Dartmouth College
David Kotz, Dartmouth College

Dartmouth Computer Science Technical Report PCS-TR97-312


We describe the effects of a new user-level library for the Galley Parallel File System. This library allows some pre-existing sequential programs to make use of the Galley Parallel File System with minimal modification. It permits programs to efficiently use the parallel file system because the user-level library groups accesses together. We examine the performance of our library, and we show how code needs to be modified to use the library.