AHPIOS: An MPI-based ad-hoc parallel I/O system

Florin Isailǎ*, Javier Garcia Blas, Jesus Carretero, Wei Keng Liao, Alok Choudhary

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


This paper presents the design and implementation of a portable ad-hoc parallel I/O system (AHPIOS). AHPIOS virtualizes on-demand available distributed storage resources and allows the files to be striped over several storage devices. Additionally, the design unifies the configuration of the MPI-IO library and the AHPIOS data servers. By a strong integration of the application, MPI-IO library and file system, a significant performance improvement can be achieved. The experimental section shows that the full MPIIO integrated AHPIOS implementation of file access operations outperforms the existing MPI-IO implementation by as much as 495% for file writes and 522% for file reads.

Original languageEnglish (US)
Article number4724327
Pages (from-to)253-260
Number of pages8
JournalProceedings of the International Conference on Parallel and Distributed Systems - ICPADS
StatePublished - Dec 1 2008
Event2008 14th IEEE International Conference on Parallel and Distributed Systems, ICPADS'08 - Melbourne, VIC, Australia
Duration: Dec 8 2008Dec 10 2008

ASJC Scopus subject areas

  • Hardware and Architecture


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