NDLI: Multiphase complete exchange on paragon, sp2 and cs-2

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Multiphase complete exchange on paragon, sp2 and cs-2

Content Provider	NASA Technical Reports Server (NTRS)
Author	Bokhari, Shahid H.
Copyright Year	1995
Description	The overhead of interprocessor communication is a major factor in limiting the performance of parallel computer systems. The complete exchange is the severest communication pattern in that it requires each processor to send a distinct message to every other processor. This pattern is at the heart of many important parallel applications. On hypercubes, multiphase complete exchange has been developed and shown to provide optimal performance over varying message sizes. Most commercial multicomputer systems do not have a hypercube interconnect. However, they use special purpose hardware and dedicated communication processors to achieve very high performance communication and can be made to emulate the hypercube quite well. Multiphase complete exchange has been implemented on three contemporary parallel architectures: the Intel Paragon, IBM SP2 and Meiko CS-2. The essential features of these machines are described and their basic interprocessor communication overheads are discussed. The performance of multiphase complete exchange is evaluated on each machine. It is shown that the theoretical ideas developed for hypercubes are also applicable in practice to these machines and that multiphase complete exchange can lead to major savings in execution time over traditional solutions.
File Size	217821
Page Count	21
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19960007051
Archival Resource Key	ark:/13960/t71w0ff9j
Language	English
Publisher Date	1995-09-01
Access Restriction	Open
Subject Keyword	Computer Operations And Hardware Communication Equipment Hypercube Multiprocessors Messages Multiprocessing Computers Interprocessor Communication Parallel Computers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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