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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Veröffentlicht in:Parallel Processing Symposium, 8th International (IPPS '94 S. 835 - 844
Hauptverfasser: Bala, V., Bruck, J., Cypher, R., Elustondo, P., Ho, A., Ching-Tien Ho, Kipnis, S., Snir, M.
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE Comput. Soc. Press 1994
Schlagworte:
Algorithm design and analysis
Application software
Broadcasting
Computer interfaces
Concurrent computing
Libraries
Parallel programming
Portable computers
Runtime
Scattering
ISBN:0818656026, 9780818656026
Online-Zugang:Volltext
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Zusammenfassung: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). 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: (i) the introduction of process groups, (ii) the definition of semantics that ensures correctness, and (iii) the design of new and tunable algorithms based on a realistic point-to-point communication model.< >
ISBN:0818656026
9780818656026
DOI:10.1109/IPPS.1994.288208