Reisen

Test playground for Taichi project

# /euler

# euler grid smoke 
python3 test.py

# /pbf 

# 3d position base fluid
python3 fluid.py

# taichi multithread for loop 
python3 case_study.py

# /pendulum

# position base dynamic pendulum float point underflow bug reproduce
python3 simple.py # compare to python3 simple-fp64.py

# /snode

# taichi bitmask and dynamic snode test , logic same as pdf

#  /sph 

# sph fluid rigid 
python3 main.py 

References

0. ten minutes physics https://matthias-research.github.io/pages/tenMinutePhysics/
1. https://github.com/matthias-research/pages/blob/master/challenges/fluid2d.html
2. https://github.com/matthias-research/pages/blob/master/tenMinutePhysics/contribs/PBFBoundary.html
3. taichi fp64 https://docs.taichi-lang.org/docs/type
4. other sph resources https://interactivecomputergraphics.github.io/physics-simulation/
5. snodes https://docs.taichi-lang.org/docs/internal#data-structure-organization
6. dynamic snode https://docs.taichi-lang.org/docs/sparse#dynamic-snode

Roadmap

1. compliant control
2. autodiff RL
3. fluid fem sph dem
4. geometry
5. optimize
6. matrix solver

TODOS

1. In sph project original sph taichi use cuda instruction shfl_up_i32 https://developer.nvidia.com/blog/using-cuda-warp-level-primitives/