Japan Geoscience Union Meeting 2019

Presentation information

[J] Oral

S (Solid Earth Sciences ) » S-TT Technology & Techniques

[S-TT47] Creating future of solid Earth science with high performance computing (HPC)

Sun. May 26, 2019 10:45 AM - 12:15 PM 304 (3F)

convener:Takane Hori(R&D Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology), Yuji Yagi(Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba), Katsuhiko Shiomi(National Research Institute for Earth Science and Disaster Resilience), Chairperson:Takane Hori

11:00 AM - 11:15 AM

[STT47-02] Development of high-performance low order unstructured implicit finite-element solvers for solid earth science problems

★Invited Papers

*Kohei Fujita1, Tsuyoshi Ichimura1, Takuma Yamaguchi1 (1.Earthquake Research Institute, The University of Tokyo)

Keywords:finite-element method, high-performance computing

Problems in solid earth science, such as crust deformation problems and earthquake wave propagation problems, involve large problem sizes with complex 3D geometry and heterogeneous material properties. Use of implicit low-order finite-element methods on high-performance computers are expected to enable such analyses; however, these methods are not straightforward to attain performance on modern computer architectures due to heterogeneity of the problem. Thus, we have been developing algorithms and implementations to improve performance of low-order finite-element methods targeting recent CPU and heterogeneous supercomputer systems. In this talk, we will introduce our development for the CPU based systems (e.g., K computer, Intel Xeon-Phi Knights Landing based Oakforest-PACS) as well as heterogeneous systems (e.g. NVIDIA GPU accelerated Piz Daint and Summit), and show some application examples using these high-performance computing enhanced methods.