A domain partitioning method using a multi-phase-field model for block-based AMR applications

Seiya Watanabe, Takayuki Aoki, Tomohiro Takaki

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

In distributed implementations of memory-bound stencil AMR applications, the inter-node communication time often represents a major performance bottleneck. Thus minimizing communication is an objective as important as maintaining a good load balance. We propose a new domain partitioning method for block-based AMR applications based on the multi-phase-field (MPF) model. The MPF model for polycrystalline growth minimizes the interfacial energy and forms a convex shape for each crystal grain. In our method, each phase of the MPF model represents a computational sub-domain of each MPI process. We apply the proposed partitioning method to a block-based AMR application for an interface capturing on multiple GPUs. We measured the strong scalability up to 256 GPUs on the TSUBAME3.0 supercomputer at Tokyo Institute of Technology. The proposed MPF partitioning can successfully improve the strong scalability and reduce the communication cost of a block-based stencil AMR application.

本文言語英語
論文番号102647
ジャーナルParallel Computing
97
DOI
出版ステータス出版済み - 9 2020

All Science Journal Classification (ASJC) codes

  • ソフトウェア
  • 理論的コンピュータサイエンス
  • ハードウェアとアーキテクチャ
  • コンピュータ ネットワークおよび通信
  • コンピュータ グラフィックスおよびコンピュータ支援設計
  • 人工知能

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