Low-level Interfaces for High-level Parallel I/O
[nieuwejaar:strided2-tr]Nils Nieuwejaar and David Kotz. Low-level Interfaces for High-level Parallel I/O. Technical Report number PCS-TR95-253, Dartmouth Computer Science, March 1995. ©Copyright the authors. Revised 4/18/95 and appeared in IOPADS workshop at IPPS’95. Identical to nieuwejaar:strided2. Revision of nieuwejaar:strided.
As the I/O needs of parallel scientific applications increase, file systems for multiprocessors are being designed to provide applications with parallel access to multiple disks. Many parallel file systems present applications with a conventional Unix-like interface that allows the application to access multiple disks transparently. By tracing all the activity of a parallel file system in a production, scientific computing environment, we show that many applications exhibit highly regular, but non-consecutive I/O access patterns. Since the conventional interface does not provide an efficient method of describing these patterns, we present three extensions to the interface that support strided, nested-strided, and nested-batched I/O requests. We show how these extensions can be used to express common access patterns.
Citable with [BibTeX]
Available from the publisher: [page]
Available from the author:
This pdf was produced by the publisher and its posting here is permitted by the publisher.