FluidX3D on GigaIO SuperNODE - Concorde 40 Billion Cell CFD Simulation - 33h on 32x MI210 64GB GPUs
This is one of the largest CFD simulations ever done, on the world's largest GPU server, the GigaIO SuperNODE, equipped with 32x AMD Instinct MI210 64GB GPUs, for a total 2TB VRAM.
https://gigaio.com/supernode/
The simulation shows the 62m long Concorde before landing at 300km/h airspeed and 10° angle of attack, for 1 second in flight. The Reynolds number based on wingspan is 146 Million.
The simulation resolution is 2976×8936×1489 = 40 Billion cells, with a tiny cell size of (12.4mm)³. 67268 time steps were computed in 29 hours, plus 4 hours for rendering 5×600 4K frames, for a total runtime of 33 hours. The video shows velocity-magnitude colored Q-criterion isosurfaces. A single frame of the velocity field is 475GB, so the 600 frames visualize a total of 285TB data.
This is a test of the newly implemented free-slip boundaries, which are a more accurate model for the turbulent boundary layer than no-slip boundaries.
On the same hardware, commercial CFD software like Ansys or Star-CCM+ would need several years of compute time for such a simulation. FluidX3D does it over the weekend.
The FluidX3D source code is on GitHub, and the software is free for non-commercial use: https://github.com/ProjectPhysX/FluidX3D
Concorde model: https://www.thingiverse.com/thing:117...
Timestamps
0:00 front view
0:10 follow view
0:20 wing view
0:30 top view
0:40 side view
#FluidX3D #Concorde #CFD #GPU #AMDInstinct
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