FlowVision Scalability on Supercomputers with Angara Interconnect
- Authors: Akimov V.S.1, Silaev D.P.1, Aksenov A.A.2, Zhluktov S.V.2, Savitskiy D.V.2, Simonov A.S.3
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Affiliations:
- Numerical Engineering Platform LLC
- Joint Institute for High Temperatures
- Scientific and Research Centre of Electronic Computer Technology
- Issue: Vol 39, No 9 (2018)
- Pages: 1159-1169
- Section: Part 1. Special issue “High Performance Data Intensive Computing” Editors: V. V. Voevodin, A. S. Simonov, and A. V. Lapin
- URL: https://journals.rcsi.science/1995-0802/article/view/203074
- DOI: https://doi.org/10.1134/S1995080218090081
- ID: 203074
Cite item
Abstract
Scalability of computations in the FlowVision CFD software on the Angara-C1 cluster equipped with the Angara interconnect is studied. Different test problems with 260 thousand, 5.5 million and 26.8 million computational cells are considered. Computations in FlowVision are performed using a new solver of linear systems based on the algebraic multigrid (AMG) method. It is shown that the the special FlowVision’s Dynamic balancing technology significantly improves performance of computations if features of the problem lead to the non-uniform loading of CPUs. The Angara-C1 cluster demonstrates excellent performance and scalability characteristics comparable with its analogues based on the 4X FDR Infiniband interconnect.
Keywords
About the authors
V. S. Akimov
Numerical Engineering Platform LLC
Author for correspondence.
Email: akimov@flowvision.ru
Russian Federation, ul. Nobelya 7, Moscow, 125373
D. P. Silaev
Numerical Engineering Platform LLC
Email: akimov@flowvision.ru
Russian Federation, ul. Nobelya 7, Moscow, 125373
A. A. Aksenov
Joint Institute for High Temperatures
Email: akimov@flowvision.ru
Russian Federation, ul. Izhorskaya 13, Moscow, 125412
S. V. Zhluktov
Joint Institute for High Temperatures
Email: akimov@flowvision.ru
Russian Federation, ul. Izhorskaya 13, Moscow, 125412
D. V. Savitskiy
Joint Institute for High Temperatures
Email: akimov@flowvision.ru
Russian Federation, ul. Izhorskaya 13, Moscow, 125412
A. S. Simonov
Scientific and Research Centre of Electronic Computer Technology
Email: akimov@flowvision.ru
Russian Federation, Varshavskoe sh. 125, Moscow, 117587