@InProceedings{worringen:non-contiguous,
  author = {Joachim Worringen and Jesper Larson Tr\"{a}ff and Hubert Ritzdorf},
  title = {Fast Parallel Non-Contiguous File Access},
  booktitle = {Proceedings of SC2003: High Performance Networking and
  Computing},
  year = {2003},
  month = {November},
  publisher = {IEEE Computer Society Press},
  address = {Phoenix, AZ},
  URL = {http://www.sc-conference.org/sc2003/paperpdfs/pap319.pdf},
  keywords = {parallel I/O interface, file access patterns, pario-bib},
  abstract = {Many applications of parallel I/O perform non-contiguous file
  accesses, but only few file system interfaces support non-contiguous access.
  In contrast, the most commonly used parallel programming interface, MPI,
  supports parallel I/O through its MPI-IO interface. Within this interface,
  non-contiguous accesses are supported by the use of derived MPI datatypes.
  Unfortunately, current MPI-IO implementations suffer from low performance of
  such non-contiguous accesses when compared to the performance of the storage
  system for contiguous accesses although a considerable amount of work has
  been done in this area. In this paper we analyze an important bottleneck in
  current implementations of MPI-IO, and present a new technique termed
  listless i/o to perform non-contiguous access with MPI-IO. On the NEC
  SX-series of parallel vector computers, listless i/o is able to increase the
  bandwidth for non-contiguous file access by sometimes more than a factor of
  500 when compared to the traditional approach.},
  comment = {published on the web}
}

