Communication studies of single-threaded and multithreaded distributed-memory machines

Andrew Sohn, Yunheung Paek, Jui Yuan Ku, Yuetsu Kodama, Yoshinori Yamaguchi

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

This report explicates the communication overlapping capabilities of three distributed-memory machines, SGI/Cray T3E, IBM SP-2 with wide nodes, and the ETL EM-X. Bitonic sorting and Fast Fourier Transform are selected for experiments. Various message sizes are used to determine when, where, how much and why the overlapping takes place. Experimental results with up to 64 processors indicated that the communication performance of EM-X is insensitive to various message sizes while SP-2 is the most sensitive. T3E stayed in between. The EM-X gave the highest communication overlapping capability while T3E did the lowest. The experimental results are compared with the analytical results based on LogP and LogGP communication models.

Original languageEnglish (US)
Pages310-314
Number of pages5
StatePublished - Jan 1 1999
EventProceedings of the 1999 5th International Symposium on High-Performance Computer Architecture, HPCA - Orlando, FL, USA
Duration: Jan 9 1999Jan 13 1999

Other

OtherProceedings of the 1999 5th International Symposium on High-Performance Computer Architecture, HPCA
CityOrlando, FL, USA
Period1/9/991/13/99

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture

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