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EUROPAR
2000
Springer

Design and Evaluation of a Compiler-Directed Collective I/O Technique

14 years 2 months ago
Design and Evaluation of a Compiler-Directed Collective I/O Technique
Abstract. Current approaches to parallel I/O demand extensive user effort to obtain acceptable performance. This is in part due to difficulties in understanding the characteristics of a wide variety of I/O devices and in part due to inherent complexity of I/O software. While parallel I/O systems provide users with environments where large datasets can be shared between parallel processors, the ultimate performance of I/O-intensive codes depends largely on the relation between data access patterns and storage patterns of data in files and on disks. Collective I/O is one of the most popular methods to access the data when the storage and access patterns do not match. In this strategy, each processor does I/O on behalf of other processors if doing so improves the overall performance. While it is generally accepted that collective I/O and its variants can bring impressive improvements as far as the I/O performance is concerned, it is difficult for the programmer to use collective I/O effec...
Gokhan Memik, Mahmut T. Kandemir, Alok N. Choudhar
Added 24 Aug 2010
Updated 24 Aug 2010
Type Conference
Year 2000
Where EUROPAR
Authors Gokhan Memik, Mahmut T. Kandemir, Alok N. Choudhary
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