@Article{simitci:patterns,
  author = {Huseyin Simitci and Daniel Reed},
  title = {A Comparison of Logical and Physical Parallel {I/O} Patterns},
  journal = {The International Journal of High Performance Computing
  Applications},
  year = {1998},
  month = {Fall},
  volume = {12},
  number = {3},
  pages = {364--380},
  keywords = {parallel I/O application, pario-bib},
  abstract = {Although there are several extant studies of parallel scientific
  application request patterns, there is little experimental data on the
  correlation of physical input/output patterns with application input/output
  stimuli. To understand these correlations, we have instrumented the SCSI
  device drivers of the Intel Paragon OSF/1 operating system to record key
  physical input/output activities and have correlated this data with the
  input/output patterns of scientific applications captured via the Pablo
  analysis toolkit. Our analysis shows that disk hardware features profoundly
  affect the distribution of request delays and that current parallel file
  systems respond to parallel application input/output patterns in non-scalable
  ways.},
  comment = {In a Special Issue on I/O in Parallel Applications, volume 12,
  numbers 3 and 4.}
}