Assessing the Performance of the New IBM SP2 Communication Subsystem (1996)
| Citations: | 7 - 0 self |
BibTeX
@MISC{Miguel96assessingthe,
author = {J. Miguel and R. Beivide and A. Arruabarrena and J.A. Gregorio},
title = {Assessing the Performance of the New IBM SP2 Communication Subsystem},
year = {1996}
}
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Abstract
IBM has recently launched an upgrade of the communication subsystem of its SP2 parallel computer. This change affects the communication hardware (high-performance switch and interface adapters) as well as the communication software (MPI implementation). In order to characterize to what extent the execution times of parallel applications will be affected by these changes, a collection of benchmarks has been run on a SP2 with the old communication subsystem and on the same machine after being upgraded. These benchmarks include point to point and collective communication tests as well as complete parallel applications. The performance indicators are the latency and throughput exhibited by the basic communication tests, and the execution time in the case of real applications. Keywords Communication subsystem, message passing networks, massively parallel computers, performance evaluation, IBM SP2. 1 Introduction A long time has passed since the high-performance computing community realized ...
