Juan Ignacio Polanco
I am a research scientist at CNRS and at the LEGI laboratory in Grenoble, France. I work on modelling and simulation of various fluid dynamical systems, with a special interest in turbulent flows and in the use of fast and accurate numerical algorithms. In this context I also develop different tools in Julia. Over the years, I have contributed a small number of open-source Julia packages motivated by my research work. These include WriteVTK.jl, PencilArrays.jl, PencilFFTs.jl, BSplineKit.jl, NonuniformFFTs.jl and VortexPasta.jl.
Session
Nonuniform FFT (NUFFT) algorithms enable the efficient evaluation of Fourier series from non-equispaced points. They have a wide range of applications, from medical imaging to the simulation of physical systems. The NonuniformFFTs.jl package provides a highly optimised NUFFT implementation, compatible with CPUs and with various GPU platforms. I will discuss its unique features and the strategies that make it one of the fastest available GPU implementations for large-scale problems.