Maddegedara Lalith Wijerathne

Computational Science and High Performance Computing Laboratory
Earthquake Research Institute
The University of Tokyo

Last update: 2021-7-16


  • Earthquake Research Institute, The University of Tokyo
  • Department of Civil Engineering, The University of Tokyo


  • Address
    Earthquake Research Institute, The University of Tokyo
    Yayoi 1-1-1, Bunkyo, Tokyo 113-0032, Japan
  • E-mail
  • Phone
  • Office
    Room T43, Building No.3 of Earthquake Research Institute

Research Theme

Current Research Projects

  • 3D Large scale simulations of super-shear earthquakes
  • HPC enhanced 1:1 scale agent based economic simulation of a nation or large economic zones, and applications in disaster recovery
  • Higher order extension of PDS-FEM and its applications to study various crack propagation phenomenon, including shockwaves
  • Applications of MPI+MPI hybrid approach with C++11 memory model for large scale simulations
  • HPC enhanced agent based simulation of large urban area evacuation

Brief History

  • (Education)
    Dr.(Eng.), Civil Engineering, the University of Tokyo, 2005
    M. E., Civil Engineering, the University of Tokyo, 2000
    B. E., Civil Engineering, University of Peradeniya, Sri Lanka, 1999
  • (Employment)
    Associate Professor, Earthquake Research Institute, University of Tokyo, 2012-Present
    Project Assistant Professor, Global Center of Excellence for Sustainable Urban Regeneration, University of Tokyo, 2010-2011
    Research scientist, Institute For Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology, 2005-2009

Recent selected article / book

  • Lionel Quaranta, Lalith Maddegedara, A novel MPI+MPI hybrid approach combining MPI-3 shared memory windows and C11/C++11 memory model, Journal of Parallel and Distributed Computing, Vol 157, pp 125-144, 2021, ISSN 0743-7315
  • A. Gill, M. Lalith, S. Poledna, M. Hori, K. Fujita and T. Ichimura, "High-Performance Computing Implementations of Agent-Based Economic Models for Realizing 1:1 Scale Simulations of Large Economies," in IEEE Transactions on Parallel and Distributed Systems, vol. 32, no. 8, pp. 2101-2114, 1 Aug. 2021, doi: 10.1109/TPDS.2021.3060462.
  • Lionel Quaranta, Lalith Maddegedara, Muneo Hori, Interaction of horizontally aligned coplanar 3D penny cracks under compression, Journal of the Mechanics and Physics of Solids, Vol 131, pp 189-203, October 2019, DOI:
  • Maddegedara Lalith, Amit Gill, Sebastian Poledna, Muneo Hori, Inoue Hikaru, Noda Tomoyuki, Toda Koyo and Tsuyoshi Ichimura, Distributed Memory Parallel Implementation of Agent Based Economic Models, Lecture Notes in Computer Science, 2019, DOI:
  • Mahendra Kumar Pal, M. L. L. Wijerathne and Muneo Hori, Numerical Modeling of Brittle Cracks Using Higher Order Particle Discretization Scheme-FEM, International Journal of Computational Methods, Vol. 53, pp 681-703, 2018
  • Leonel Aguilar, Maddegedara Lalith, Tsuyoshi Ichimura, Muneo Hori, On the performance and scalability of an HPC enhanced Multi Agent System based evacuation simulator, Procedia Computer Science, Vol 108, pp 937-947, 2017
  • Leonel Enrique Aguilar Melgar, Wijerathne Maddegedara Lalith Lakshman, Muneo Hori, Tsuyoshi Ichimura and Seizo Tanaka, On the Development of an MAS Based Evacuation Simulation System: Autonomous Navigation & Collision Avoidance, Lecture Notes in Computer Science, Vol. 8291, pp 388-395, 2013
  • M.L.L. Wijerathne, L.A. Melgar, M. Hori, T. Ichimura, S. Tanaka, HPC Enhanced Large Urban Area Evacuation Simulations with Vision based Autonomously Navigating Multi Agents, Procedia Computer Science, Vol. 18, pp 1515-1524, 2013
  • M. L. L. Wijerathne, Muneo Hori, Hide Sakaguchi and Kenji Oguni, 3D dynamic simulation of crack propagation in extracorporeal shock wave lithotripsy, IOP Conference Series: Materials Science and En-gineering, 2010, DOI: 10.1088/1757-899X/10/1/012120
  • M. L. L. Wijerathne, Kenji Oguni, Muneo Hori, Numerical analysis of growing crack problems using particle discretization scheme, Int. J. for Numerical Methods in Eng., 80-1, 46-73, 2009
  • Kenji Oguni, M. L. L. Wijerathne, and Muneo Hori, Three dimensional photoelasticity with equilibrium constraint, Applied Physics letters, 92-24, 241117 - 241117-3, 2008, doi:10.1063/1.2949683- 2008
  • M. L. L. Wijerathne, Kenji Oguni and Muneo Hori, Stress filed tomography based on 3D photoelasticity, Journal of Mechanics and Physics of Solids, 56, 1065-1085, 2008

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