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arxiv: hep-lat/9909146 · v1 · pith:YW2NZTU3new · submitted 1999-09-22 · ✦ hep-lat

QCD on α-Clusters

classification ✦ hep-lat
keywords alphaalpha-clustersbalancingcommunicationcomparablecomputationdiscussedefficiency
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It is shown that the 21264 Alpha processor can reach about 20% sustained efficiency for the inversion of the Wilson-Dirac operator. Since fast ethernet is not sufficient to get balancing between computation and communication on reasonable lattice- and system-sizes, an interconnection using Myrinet is discussed. We find a price/performance ratio comparable with state-of-the-art SIMD-systems for lattice QCD.

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