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Mathias Malandain

Personal Information

Mathias Malandain
PhD Student

Office: INSA/MA.B.RC.3
Tel: +33 (0)2 32 95 97 87

Lab Address

Avenue de l'Université - BP 12
76801 Saint Etienne du Rouvray
Tel: +33 (0)2 32 95 36 00

Research Activities

Subject of the PhD : Massively parallel simulations of low-Mach number turbulent flows

  • Improvement of linear solvers for the discretized pressure Poisson equation :
    • Use of residual recycling on both grids and adaptation of the convergence criterion on the deflated grid
    • Implementation of a three-level deflation method using both reduction methods
  • Preliminary work regarding dynamic load balancing in YALES2
  • Thesis to be defended on January 15th, 2013


  • M. Malandain, N. Maheu and V. Moureau, Optimization of the deflated Conjugate Gradient algorithm for the solving of elliptic equations on massively parallel machines, in Journal of Computational Physics, available online from December 2012 (link)
  • M. Malandain, N. Maheu and V. Moureau, Optimization of the Deflated PCG algorithm applied to the massively parallel LES of heat transfer in gas turbines, in Turbulence, Heat and Mass Transfer 7, 313-316, Begell House Inc. (2012)