Download Recent Advances in Parallel Virtual Machine and Message by Marian Bubak, Włodzimierz Funika (auth.), Vassil Alexandrov, PDF

By Marian Bubak, Włodzimierz Funika (auth.), Vassil Alexandrov, Jack Dongarra (eds.)

This publication constitutes the refereed court cases of the fifth ecu assembly of the Parallel digital computing device and Message Passing Interface clients' crew, PVM/MPI '98, held in Liverpool, united kingdom, in September 1998.
The forty nine contributed and invited papers awarded have been conscientiously reviewed and revised for inclusion within the quantity. All present points of PVM and MPI are addressed. The papers are geared up in topical sections on evaluate and function, extensions and enhancements, implementation matters, instruments, and algorithms.

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Extra info for Recent Advances in Parallel Virtual Machine and Message Passing Interface: 5th European PVM/MPI Users' Group Meeting Liverpool, UK, September 7–9, 1998 Proceedings

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Comparison of MPI point-to-point latency on the CS-2 and SP2. For message size comprised between 512 and 4 Kbytes, the CS-2 times are similar to those of the SP2-new, while they are better than the SP2 ones. This positive trend for the CS-2 is more evident for message longer than 4 Kbytes, where the CS-2 is the most efficient, although it uses a communication system with lower hardware bandwidth and a non-native MPI implementation. Message length (Bytes) Fig. 9. Comparison of MPI predicted latency on the CS-2 and SP2.

2 New Mechanisms Instrumentation function calls as mentioned above are used in twofold way: – first, each instrumented function can involve a function call for checking whether a request from the monitoring facility has arrived. In our tool, most such requests ask processes for various performance data, like the CPU load on a node or the number of page faults since process started. Such data can usually be collected with a few simple system calls and are immediately returned to the monitoring facility; – the second benefit comes from the fact that these functions allow to implement an event service which traces function calls.

Leiserson, "Fat-trees: Universal Networks for Hardware-Efficient Supercomputing", IEEE Transactions on Computers, vol. C-34, no. 10, pp. 892-901, 1985. Miguel,A. Arruabarrena, R. A. Gregorio, "Assessing the Performance of the New IBM SP2 Communication Subsystem", IEEE Parallel and Distributed Technology, pp. 12-22, Winter 1996. M. Snir, S. W. Otto, S. Huss-Lederman, D. W. Walker, and J. Dongarra, MPI: The Complete Reference, The MIT Press, 1996. Z. Xu and K. Hwang, "Modeling Communication Overhead: MPI and MPL Performance on the IBM SP2", IEEE Parallel and Distributed Technology, pp.

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