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We describe a benchmark problem, based on the Block-Tridiagonal (BT) problem of the NAS Parallel Benchmarks (NPB), which is used to test the output capabilities of high-performance computing systems, especially parallel systems. We also present a source code implementation of the benchmark, called NPBIO2.4-MPI, based on the MPI implementation of NPB, using(More)
Parallel job scheduling has gained increasing recognition in recent years as a distinct area of study. However , there is concern about the divergence of theory and practice in the eld. We review theoretical research in this area, and recommendations based on recent results. This is contrasted with a proposal for standard interfaces among the components of(More)
Thanks to MPI, writing portable message passing parallel programs is almost a reality. One of the remaining problems is le I/O. Although parallel le systems support similar interfaces, the lack of a standard makes developing a truly portable program impossible. It is not feasible to develop large scientiic applications from scratch for each generation of(More)
or [rle ,3Lno mawall in[er[_auor_ap k, onrerence on bystem bclences-i_"o_ Abstract We designed a new network architecture, the P-Mesh, which combhres the scalabili_, and fault resilience of a torus with the performance of a switch. We compare tire scalability, performance, and cost of the hub, switch, torus, tree, and P-Mesh architectures. Tire latter three(More)
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