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Grid on QPACE 4

High Energy Physics - Lattice 2021-12-06 v1 Distributed, Parallel, and Cluster Computing
Authors: Peter Georg , Nils Meyer , Stefan Solbrig , Tilo Wettig
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Abstract

In 2020 we deployed QPACE 4, which features 64 Fujitsu A64FX model FX700 processors interconnected by InfiniBand EDR. QPACE 4 runs an open-source software stack. For Lattice QCD simulations we ported the Grid LQCD framework to support the ARM Scalable Vector Extension (SVE). In this contribution we discuss our SVE port of Grid, the status of SVE compilers and the performance of Grid. We also present the benefits of an alternative data layout of complex numbers for the Domain Wall operator.

Cite

@article{arxiv.2112.01852,
  title  = {Grid on QPACE 4},
  author = {Peter Georg and Nils Meyer and Stefan Solbrig and Tilo Wettig},
  journal= {arXiv preprint arXiv:2112.01852},
  year   = {2021}
}

Comments

7 pages, 8 figures, proceedings of Lattice 2021

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