Fluid Simulation Benchmark

This repo compare speed of

• taichi MLS-MPM
• houdini apic flip
• maya bifrost graph

Basic setup

• 32 x 32 x 32 grid resolution
• ~8000 particles
• 1m x 1m x 1m container
• 0.1m x 0.1m x 0.1m particle source at position (0, 0.5, 0)
• gravity is set to (0, -9.8, 0)

Speed Comparation

Measure result per substep:

• taichi cpu: ~2ms
• taichi gpu: ~0.28ms
• houdini: ~5ms
• maya: ~1000ms

hardware: CPU=AMD5900X, GPU=RTX2070

Simulation Preview

houdini:

maya:

taichi:

Houdini and Maya setup

maya:

houdini:

Possibility for realtime

cost=2ms, substep=3:

• ngrid = 32, n_particle = 60000
• ngrid = 64, n_particle = 70000
• ngrid = 128, n_particle = 0

Run Taichi profiling:

run:

python taichi_profiler.py