Titlebook: Recent Advances in Parallel Virtual Machine and Message Passing Interface; 5th European PVM/MPI Vassil Alexandrov,Jack Dongarra Conference

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0302-9743 e carefully reviewed and revised for inclusion in the volume. All current aspects of PVM and MPI are addressed. The papers are organized in topical sections on evaluation and performance, extensions and improvements, implementation issues, tools, and algorithms.978-3-540-65041-6978-3-540-49705-9Series ISSN 0302-9743 Series E-ISSN 1611-3349

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Performance analysis of task-based algorithms on heterogeneous systems with message passing, unbalancing, provided that the computation and communication complexity at the task level is known. In this way we are able to evaluate how the efficiency varies with the task granularity and the degree of heterogeneity of the network..The analysis can be easily modified to copy with other message passing environments.

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Automatic detection of PVM program performance problems,iders the trace file obtained from the execution of the application in order to locate the most important behaviour problems of the application. Then, the tool relates them with the corresponding application code and scans the code looking for any design decision which could be changed to improve the behaviour.

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