* To-do list [#k43773e8]

- Must-do

-- normalize \phi_i by min{1, sum_i \phi_i}
-- MPI for larger scale simulation on cluster machine 

-- AC shear flow with LE PBC
-- More inter-particle interactions such as DLVO and Morse potentials

-- Front-end-processor to create input.udf

- May-do

-- Fluctuating Hydrodynamics

-- MPI for larger scale simulation on cluster machine 

-- Multiple particle size

-- Viscoelastic fluid

* Known bugs and limitations [#p38774d3]

- Abort when restart.udf is created (very rare). This may be a problem of libplatform.