Jekyll2026-04-08T13:52:28+00:00/feed.xmlArpit BabbarMy academic website as a researcher of numerical algorithms for PDE solvers. Applications of my research include fluid dynamics. The particular numerical algorithms that I study are high-order, discontinuous Galerkin finite element methods. Arpit BabbarJulia performance tips2025-08-01T19:34:30+00:002025-08-01T19:34:30+00:00/2025/08/01/juliaUse the following tools to develop a fast CFD code in Julia

  1. ProfileView.jl to ensure that there are no type instabilities
  2. TimeOutputs.jl to ensure that there are no unexpected memory allocations

These tools will give you hints to the location of your problem in your code. After that, you should aim to construct a minimal working example (MWE). This video has an excellent strategy on creating an MWE in Julia https://www.youtube.com/watch?v=g-iOOhh2U6o. Once you have an MWE, you will very often be able to resolve the problem with your own intuition and maybe some hints through the official docs. If you aren’t able to, you will find that the Julia community is very glad to help. You can post in Julialang discourse, Slack or Zulip.

]]>Arpit BabbarGPU codes using KernelAbstractions.jl2025-03-08T05:34:30+00:002025-03-08T05:34:30+00:00/blog/2025/03/08/kernelMarco Artiano and I wrote some GPU codes using KernelAbstractions.jl with the help of Valentin Churavy. This is our first time using KernelAbstractions.jl, and we will appreciate any feedback and comments!

  1. https://github.com/Arpit-Babbar/KernelAbstractionsFV.jl
  2. https://github.com/MarcoArtiano/IncompressibleNavierStokes.jl
]]>Arpit BabbarTalk on Introduction to Trixi.jl2025-01-23T19:34:30+00:002025-01-23T19:34:30+00:00/blog/2025/01/23/trixiMarco Artiano and I gave an introduction to Trixi.jl in the Julia user group Mainz. The (reproducible) material we presented is available at github.com/ranocha/Julia_User_Group_Mainz/tree/main/2025-01-23__Introduction_To_Trixi. You can also get a preview on the browser

  1. https://ranocha.de/Julia_User_Group_Mainz/2025_01_23_Introduction_To_Trixi_Part1.html
  2. https://ranocha.de/Julia_User_Group_Mainz/2025_01_23_trixi_applications.html
]]>Arpit BabbarTalk at the workshop on Hardware-aware Scientific Computing2024-10-24T19:34:30+00:002024-10-24T19:34:30+00:00/blog/2024/10/24/iwrI will be presenting my PhD work on admissibility preserving subcell limiters for LWFR schemes in IGHASC: Indo-german Workshop on Hardware-aware Scientific Computing. The paper I will be presenting is Admissibility Preserving Subcell Limiter for Lax–Wendroff Flux Reconstruction.

]]>Arpit BabbarTalk at Julia user group Mainz2024-10-23T19:34:30+00:002024-10-23T19:34:30+00:00/blog/2024/10/23/juliaI will be presenting my workflow using julia over SSH using VS code and Pluto in the Julia user group Mainz. The result of this workflow is an interactive environment where I can run my simulations and visualize them without having to leave VS Code.

]]>Arpit BabbarTalk at the Mathematics of Weather conference2024-10-03T19:34:30+00:002024-10-03T19:34:30+00:00/blog/2024/10/03/mowI will be presenting some of my PhD work at the Mathematics of Weather (MOW) 2024.

]]>Arpit BabbarPresentation at the Numerical Engine Room2023-10-25T19:34:30+00:002023-10-25T19:34:30+00:00/2023/10/25/talkI am about to give a talk in the Numerical Engine Room Talks (numerical-engine-room-talks.github.io) series which is organized by the wonderful developers of Trixi.jl.

]]>Arpit Babbar