@Article{kotz:jdiskdir,
  author = {David Kotz},
  title = {Disk-directed {I/O} for {MIMD} Multiprocessors},
  journal = {ACM Transactions on Computer Systems},
  year = {1997},
  month = {February},
  volume = {15},
  number = {1},
  pages = {41--74},
  publisher = {ACM Press},
  copyright = {ACM},
  identical = {kotz:bdiskdir},
  earlier = {kotz:diskdir-tr},
  URL = {http://www.cs.dartmouth.edu/~dfk/papers/kotz:jdiskdir.ps.gz},
  URLpdf = {http://www.cs.dartmouth.edu/~dfk/papers/kotz:jdiskdir.pdf},
  keywords = {parallel I/O, multiprocessor file system, file system caching,
  dfk, pario-bib},
  abstract = {Many scientific applications that run on today's multiprocessors,
  such as weather forecasting and seismic analysis, are bottlenecked by their
  file-I/O needs. Even if the multiprocessor is configured with sufficient I/O
  hardware, the file-system software often fails to provide the available
  bandwidth to the application. Although libraries and enhanced file-system
  interfaces can make a significant improvement, we believe that fundamental
  changes are needed in the file-server software. We propose a new technique,
  disk-directed I/O, to allow the disk servers to determine the flow of data
  for maximum performance. Our simulations show that tremendous performance
  gains are possible both for simple reads and writes and for an out-of-core
  application. Indeed, our disk-directed I/O technique provided consistent high
  performance that was largely independent of data distribution, obtained up to
  93\% of peak disk bandwidth, and was as much as 18 times faster than the
  traditional technique.},
  comment = {This paper is a substantial revision of the diskdir-tr version:
  all of the experiments have been re-done, using a better-tuned version of the
  file systems (see kotz:tuning), and adding two-phase I/O to all comparisons.
  It also incorporates some of the material from kotz:expand and kotz:int-ddio.
  Also available at
  http://www.acm.org/pubs/citations/journals/tocs/1997-15-1/p41-kotz/.}
}