Scientific Computing Seminar

Date and Place: Thursdays in Room 32-349. For detailed dates see below!

Content

In the Scientific Computing Seminar we host talks of guests and members of the SciComp team as well as students of mathematics, computer science and engineering. Everbody interested in the topics is welcome.

List of Talks

Event Information:

  • Thu
    13
    Dec
    2018

    SC Seminar: Javad Fadaie Ghotbi

    11:45SC Seminar Room 32-349

    Javad Fadaie Ghotbi, Fraunhofer ITWM

    Title:
    Parallel Algebraic Multigrid Using GaspiLS

    Abstract:

    Solving a linear system of N unknowns with Multigrid methods are optimal because they can solve with O(N) work. This optimality property is crucial for scaling up huge simulation on parallel computers. To accomplish this, the problem geometry guides us to design the multigrid component with the underlying system in mind. Algebraic multigrid is a technique for solving linear system based on multigrid framework, but without need any explicit geometric information. AMG contains the fundamental multigrid ingredients that based only on matrix entries. Various AMG algorithms with different efficiency properties have developed by researchers which target different problem classes.
    In this presentation, we will introduce the AMG method, starting with a depiction of classical AMG and move on to Parallel AMG and recent developments.