00:00:00 / 00:00:00
1 5

Analysis of a three-Level vriant of parareal

By Felix Kwok

In this talk, we present a three-level variant of the parareal algorithm that uses three propagators at the fine, intermediate and coarsest levels. The fine and intermediate levels can both be run in parallel, only the coarsest level propagation is completely sequential. We interpret our algorithm as a variant of three-level MGRIT, and we present a convergence analysis that uses parareal-type assumptions, i.e., those that involve Lipschitz constants on the propagators. We present numerical experiments to illustrate how sharp the estimates are for various time dependent problems.

Information about the video

Citation data

  • DOI 10.24350/CIRM.V.19938603
  • Cite this video Kwok, Felix (11/07/2022). Analysis of a three-Level vriant of parareal. CIRM. Audiovisual resource. DOI: 10.24350/CIRM.V.19938603
  • URL https://dx.doi.org/10.24350/CIRM.V.19938603

Domain(s)

Last related questions on MathOverflow

You have to connect your Carmin.tv account with mathoverflow to add question

Ask a question on MathOverflow




Register

  • Bookmark videos
  • Add videos to see later &
    keep your browsing history
  • Comment with the scientific
    community
  • Get notification updates
    for your favorite subjects
Give feedback