Engineering simulation,
30× faster.
To power the next decade of engineering simulation, where every design is run a thousand times, not once.
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See it solve.
Short loops, solved on one GPU.
Installation
brae is production-ready on NVIDIA GPUs, run it on your workstation, a cluster, or the cloud, and drops straight into your existing OpenFOAM workflow.
curl -fsSL https://brae.sh/install.sh | shRequires NVIDIA GPU · CUDA 12.4
The whole solve stays on the GPU.
Mesh, fields, pressure–velocity coupling, every linear solve, on the device from the first iteration to the last.
Offload solvers rebuild the matrix on the CPU and copy it across every step. That migration tax is what brae doesn't pay.
The honest chart.
The same OpenFOAM case, same schemes, same solver tolerances, run every way we could on the same hardware. Every result matched the fields to under 1%.
One NVIDIA H100 PCIe (~2 TB/s HBM). simpleFoam, 4.89M cells. Matched under 1%.
One GPU
instead of 1,000 CPU cores.
“Brae is a brilliant piece of development, and those 4.5 hours on a single GPU show exactly why.”
“This is valuable… imagine someone with a 4 GB VRAM laptop. This changes a lot. It's indeed a nice contribution.”
“Nice work!”
“Oh awesome!”
“Cool. I didn't expect that…”
“I feel it. Maybe I can run it on an RTX 4090…”