Titlebook: Recent Advances in the Message Passing Interface; 17th European MPI Us Rainer Keller,Edgar Gabriel,Jack Dongarra Conference proceedings 201

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Parallel Chaining Algorithmstangles of total maximal weight. This problem is used in a number of applications in bioinformatics, string processing, and VLSI design. In this paper, we present parallel versions of the chaining algorithm for bioinformatics applications, running on multi-core and computer cluster architectures. Fu

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Precise Dynamic Analysis for Slack Elasticity: Adding Buffering without Adding Bugsdeterministic operations, this can result in . deadlocks or other safety assertion violations. Previous work did not provide any characterization of the space of . programs: those for which buffering can be safely added. In this paper, we offer a precise characterization of slack elasticity based on

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Compact and Efficient Implementation of the MPI Group Operations in time proportional to the size of the argument groups. The worst case lookup time (to determine the global processor id corresponding to a local process rank) is logarithmic, but often better (constant), and can be traded against maximum possible compaction. Many commonly used MPI process groups

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Characteristics of the Unexpected Message Queue of MPI Applicationsh respect to communications characteristics. Even less information is available on the low-level communication libraries, such as the length of MPI Unexpected Message Queues (UMQs) and the length of time such messages spend in these queues. Such information is vital to developing appropriate strateg

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