102 PFLOPS lattice QCD quark solver on Fugaku
102 PFLOPS lattice QCD quark solver on Fugaku
复制标题
Fugaku 上的 102 PFLOPS 晶格 QCD 夸克求解器
DOI:
10.1016/j.cpc.2022.108510
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Miwako Tsuji
中科院分区:
文献类型:
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作者:
K. Ishikawa;I. Kanamori;H. Matsufuru;Ikuo Miyoshi;Yu Mukai;Y. Nakamura;Keigo Nitadori;Miwako Tsuji
We present results on the world's first over 100 PFLOPS single precision lattice QCD quark solver on the Japanese new supercomputer Fugaku. We achieve a factor 38 time speedup from the supercomputer K on the same problem size, 1924, with 102 PFLOPS, 10% floating-point operation efficiency against single precision floating-point operation peak. The evaluation region is the single precision BiCGStab for a Clover–Wilson Dirac matrix with Schwarz Alternating Procedure domain decomposition preconditioning using Jacobi iteration for the local domain matrix inversion.