CCL: a portable and tunable collective communication library for scalable parallel computers
A collective communication library for parallel computers includes frequently used operations such as broadcast, reduce, scatter, gather, concatenate, synchronize, and shift. Such a library provides users with a convenient programming interface, efficient communication operations, and the advantage...
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Published in | IEEE transactions on parallel and distributed systems Vol. 6; no. 2; pp. 154 - 164 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Los Alamitos, CA
IEEE
01.02.1995
IEEE Computer Society |
Subjects | |
Online Access | Get full text |
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Summary: | A collective communication library for parallel computers includes frequently used operations such as broadcast, reduce, scatter, gather, concatenate, synchronize, and shift. Such a library provides users with a convenient programming interface, efficient communication operations, and the advantage of portability. A library of this nature, the Collective Communication Library (CCL), intended for the line of scalable parallel computer products by IBM, has been designed. CCL is part of the parallel application programming interface of the recently announced IBM 9076 Scalable POWERparallel System 1 (SP1). In this paper, we examine several issues related to the functionality, correctness, and performance of a portable collective communication library while focusing on three novel aspects in the design and implementation of CCL: 1) the introduction of process groups, 2) the definition of semantics that ensures correctness, and 3) the design of new and tunable algorithms based on a realistic point-to-point communication model.< > |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1045-9219 1558-2183 |
DOI: | 10.1109/71.342126 |