Uploaded April 2022 | Updated September 2026, 1 week ago

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I like rapid HPC prototyping with interactive graphics. So much in fact that I even use them on Jülich Supercomputing Centre (JSC) - Europe's fastest supercomputer - over SSH in WSL, where FluidX3D runs on a Nvidia A100 GPU that does not even have a video output.
That's right, real time 3D rendering in a remote Linux console.

This is a real time demo of flow around a cylinder in a rectangular duct at Re=25k, with q-criterion isosurface visualization: youtu.be/H34MJjVXK3w

The console graphics are demonstrated here: youtu.be/tehGAbRB-sw

The simulation software used is FluidX3D, an OpenCL implementation of the lattice Boltzmann method. FluidX3D runs at peak hardware efficiency on the worlds fastest data-center GPUs (8799/5232 MLUPs/s on the Nvidia A100/V100 @ D3Q19 SRT FP32), on gaming GPUs and CPUs and it even runs my smartphone.
For more performance details, see: researchgate.net/publication/362275548_Accuracy_and_performance_of_the_lattice_Boltzmann_method_with_64-bit_32-bit_and_customized_16-bit_number_formats

Timestamps:
0:00 hardware showcase
0:26 starting FluidX3D
0:38 simulation start

#FluidX3D #OpenCL #GPU #LBM