/sim-benchmark

fluid simulation benchmark: taichi, houdini, bifrost

Primary LanguageMathematica

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:
houdini
maya:
maya
taichi:
taichi

Houdini and Maya setup

maya:
maya
houdini:
houdini

Possibility for realtime

cost=2ms, substep=3:

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

taichi
taichi

Run Taichi profiling:

run:

python taichi_profiler.py