This Month In Fluiddyn - Feb 2024 edition

#ThisMonthInFluiddyn - Feb 2024 edition

A big one, where many FluidDyn packages starts rolling on wheels 🚗 🏁 !

• FluidFFT, your user-friendly parallelized FFT package, is now so easy to install! Try:

pip install fluidfft pyfftw

• The Pythran extensions comes pre-compiled!

• FluidFFT v0.4.x has plugins now (one each for different MPI enabled Cython backends: FFTW, P3DFFT, PFFT ...) which requires Cython compilation¹. This used to be part of FluidFFT in older versions.

https://fluidfft.readthedocs.io/en/latest/plugins.html

• FluidSim our CFD package also gets pre-compiled Pythran extensions in wheels!

• FluidImage the scalable PIV package gets its first release in many years, also gets wheels! Heads up for another minor release soon, with breaking changes:

https://fluidimage.readthedocs.io/en/latest/changes.html#release-notes

• All this was made possible by the new Meson support in Transonic

https://transonic.readthedocs.io/en/latest/packaging.html

and a bit of CI/CD stuff powered by cibuildwheel

# Installation in a ubuntu-based distro MPI+FFTW+fluidfft
sudo apt install openmpi-bin libopenmpi-dev
sudo apt install libfftw3-mpi-dev
python3 -m venv venv
source venv/bin/activate
pip install fluidfft mpi4py
pip install pyfftw  # easiest FFTW backend to install
pip install fluidfft-fftw  # optional sequential FluidFFT plugins
pip install fluidfft-fftwmpi fluidfft-mpi-with-fftw  # optional parallelized FluidFFT plugins