DONIO: Distributed object network I/O library

Technical Report · Thu Sep 01 00:00:00 EDT 1994

OSTI ID:10184542

D`Azevedo, E F; Romine, C H

This report describes the use and implementation of DONIO (Distributed Object Network I/O), a library of routines that provide fast file I/O capabilities in the Intel iPSC/860 and Paragon distributed memory parallel environments. DONIO caches a copy of the file in memory distributed across all processors. Disk I/O routines (such as read, write, and lseek) are replaced by calls to DONIO routines, which translate these operations into message communication to update the cached data. Experiments on the Intel Paragon show that the cost of concurrent disk I/O using DONIO for large files can be 15-30 times smaller than using standard disk I/O.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 10184542
• Report Number(s): ORNL/TM-12743; ON: DE94019163; TRN: 94:008584
• Resource Relation: Other Information: PBD: Sep 1994
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
PARALLEL PROCESSING
COMPUTER ARCHITECTURE
DATA TRANSMISSION
D CODES
990200
MATHEMATICS AND COMPUTERS