@InProceedings{kandaswamy:hartree,
  author = {Meenakshi A. Kandaswamy and Mahmut T. Kandemir and Alok N.
  Choudhary and David E. Bernholdt},
  title = {Optimization and Evaluation of {Hartree-Fock} Application's {I/O}
  with {PASSION}},
  booktitle = {Proceedings of SC97: High Performance Networking and Computing},
  year = {1997},
  month = {November},
  publisher = {ACM Press},
  address = {San Jose},
  later = {kandaswamy:hartree-fock},
  URL = {http://doi.acm.org/10.1145/509593.509624},
  keywords = {parallel I/O, scientific computing, pario-bib},
  abstract = {Parallel machines are an important part of the scientific
  application developer's tool box and the computational and processing demands
  placed on these machines are rapidly increasing. Many scientific applications
  tend to perform high volume data storage, data retrieval and data processing,
  which demands high performance from the I/O subsystem. In this paper, we
  conduct an experimental study of the I/O performed by the Hartree-Fock (HF)
  method, as implemented using a fully distributed data approach in the NWChem
  parallel computational chemistry package. We use PASSION, a parallel and
  scalable I/O library and it's optmizations such as prefetching to improve the
  I/O performance of the HF application and we also present extensive
  experimental results of the same. The effects of both application-related
  factors and system-related factors on the application's I/O performance are
  studied in detail. We rank the optimizations based on the significance and
  impact on the performance of HF's I/O phase as: I. efficient interface to the
  file system, II. prefetching optimization, and III. buffering. The results
  show that within the limits of our experimental parameters,
  application-related factors are more effective on the overall I/O behavior of
  this application. We obtained up to 95\% improvement in I/O time and 43\%
  improvement in the overall application performance with these
  optimizations.},
  comment = {No page numbers: proceedings on CDROM and web only.}
}