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Parallel CAE System for Large Scale Problems Based on HTML5 and WebGL

[+] Author Affiliations
Kaworu Yodo, Akio Miyoshi

Insight, Inc., Tokyo, Japan

Ryuji Shioya, Takuru Asaumi

Toyo University, Kawagoe, Saitama, Japan

Paper No. DETC2012-70818, pp. 793-799; 7 pages
doi:10.1115/DETC2012-70818
From:
  • ASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 2: 32nd Computers and Information in Engineering Conference, Parts A and B
  • Chicago, Illinois, USA, August 12–15, 2012
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-4501-1
  • Copyright © 2012 by ASME

abstract

We have developed a prototype of web based CAE system with HTML5 and WebGL technology and the ADVENTURE system. The main system including solver part is operated on the remote server like a cloud computing and user interface client is operated in a web browser on the Internet devices (including PCs, smartphones, and tablet devices) without any additional software or plug-ins.

In this system, we use the ADVENTURE system as server-side CAE system. The ADVENTURE system is a general-purpose computational analysis system we have been developing. Aim of the system is to enable to analyze a three dimensional finite element model of arbitrary shape over 100 million Degrees Of Freedom (DOF) mesh on massive parallel computers like a large-scale PC cluster or a super computer. To solve large scale problem, domain-decomposition-based parallel algorithms are implemented in pre-processes (domain decomposition), main processes (system matrix assembling and solutions) and post-process (visualization) of the ADVENTURE system, respectively. The hierarchical domain decomposition method (HDDM) with the balancing domain decomposition (BDD) as a pre-conditioned iterative solver is adopted in the main processes. Module-based architecture of the system with standardized I/O format and libraries are also developed and employed to attain flexibility, portability, extensibility and maintainability of the whole system.

Since the software has become a quite large system, it is not easy to install or operate the system on parallel machines by users. To solve this issue, the authors have been developed CAE system for large scale problems based on computer network. With this system, the main system including solver part is operated on the remote server like a cloud computing and to operate such a system from a client PC through the network. Users need not to touch server system and easy operation on client system was developed. But this system requires for users to install client software, which may become a barrier to start using the system.

Copyright © 2012 by ASME

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