理化学研究所 計算科学研究センター

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第149回 第2部

第149回 第2部
日時: 2018年10月10日(水)、14:30 - 15:10
場所: R-CCS 6階講堂

・講演題目:1. The BEAST eigensolver and 2. Recent developments and results for the BEAST eigensolver
・講演者:Martin Galgon, Sarah Huber (ともにU. Wuppertal, 今村チーム客員研究員)
※発表・スライド共に英語

講演要旨: 詳細を見る

1. We will introduce the BEAST eigensolver, which incorporates both polynomial and contour integral type filter diagonalization schemes for the solution of large sparse eigenproblems. The solver incorporates multiple levels of parallelism as well as a variety of algorithmic advances for fast, accurate, and robust solution. The underlying filter diagonalization schemes and the resulting solver will be introduced here.
2. In this talk we will discuss some of the latest advances of the BEAST eigensolver, including the availability of mixed precision calculations for reduced calculation time while maintaining accuracy. We also show results from recent tests showing the scalability of BEAST to very large problem sizes and numbers of cores.