Reminder: dr. Kosec's seminar at SISSA

[Emanuele Tuillier Illingworth]

> SEMINAR ANNOUNCEMENT
>
> Dr. Gregor Kosec
> Parallel And Distributed Systems Laboratory
> Jožef Stefan Institute, Ljubljana
>
> "Local Meshless Numerical Method for Solving Transport Problems"
>
> Venue: Wednesday 15 October in lecture room 134 at 3 pm
>
> Abstract:
> In the last decade, a new class of numerical methods, referred to as 
> the meshless methods, is becoming popular as alternative to classical 
> methods, like Finite Difference Method (FDM), Boundary Element Method 
> (BEM) or Finite Element Method (FEM). A local meshless method (LMM) is 
> based entirely on the approximation constructed over a local subset of 
> scattered computational points and does not require any kind of 
> special topological relations between computational points. The LMM 
> can be formulated in a form suitable for straightforward 
> implementation and further upgrade to treat anomalies such as sharp 
> discontinues or other obscure situations often occurring in complex 
> simulations. Besides simple formulation and implementation, the LMM 
> also enables high parallel efficiency since the localization reduces 
> inter-processor communication, which is often a bottleneck of parallel 
> algorithms.
>
> We demonstrate the method on the simulation of (i) natural convection 
> in a free fluid and porous media, (ii) the solidification of a binary 
> alloy, and (iii) the dynamics of charge carrier in a semiconductor 
> device. The basic properties of LMM, i.e. convergence, complexity and 
> intrinsic features, are assessed on the diffusion and Burgers' 
> equations. The parallel efficiency of the presented LMM implementation 
> is demonstrated through the speedup measurements on multicore computer 
> architecture and multi GPU architecture.
>