@InProceedings{natarajan:clusterio,
  author = {Chita Natarajan and Ravishankar K. Iyer},
  title = {Measurement and Simulation Based Performance Analysis of Parallel
  {I/O} in a High-Performance Cluster System},
  booktitle = {Proceedings of the 1996 IEEE Symposium on Parallel and
  Distributed Processing},
  year = {1996},
  month = {October},
  pages = {332--339},
  publisher = {IEEE Computer Society Press},
  keywords = {performance analysis, parallel I/O, pario-bib},
  abstract = {This paper presents a measurement and simulation based study of
  parallel I/O in a high-performance cluster system: the Pittsburgh
  Supercomputing Center (PSC) DEC Alpha Supercluster. The measurements were
  used to characterize the performance bottlenecks and the throughput limits at
  the compute and I/O nodes, and to provide realistic input parameters to
  PioSim, a simulation environment we have developed to investigate parallel
  I/O performance issues in cluster systems. PioSim was used to obtain a
  detailed characterization of parallel I/O performance, in the high
  performance cluster system, for different regular access patterns and
  different system configurations. This paper also explores the use of local
  disks at the compute nodes for parallel I/O, and finds that the local disk
  architecture outperforms the traditional parallel I/O over remote I/O node
  disks architecture, even when as much as 68-75\% of the requests from each
  compute node goes to remote disks.}
}