Infino.jl

Infrastructure to test Subcycling

Installation

1. Clone the repo: git clone [email protected]:lwJi/Infino.jl.git

2. Add Infino to your Pkg environment: ] dev \path\to\the\repo

3. Import Infino: using Infino

Run an example

julia run/Subcycling.jl test/integration/scalarwave_3levels.toml
julia tool/generate_gifs.jl test/integration/scalarwave_3levels/

Generate julia function from Symbolic expression

cd symbolic
julia generate_functions.jl

Refs

• rkprol branch

• wiki

• pseudocode

RK4 Steps

• Initialise

• March the first substep for all levels (coarse to fine)

 ------

        ------
               ------
 ------ ------ ------

• March the other substeps to the same time slice

for s = 2:2^(lmax-1)  # from second to final substeps of the finest level
    for l = 2:lmax  # march all levels execpt the coarest (coarset to fine)
        if l == lmax || (levs[l].time == levs[l+1].time)
            if l < lmax
                Restriction  # from l+1 to l
            Prolongation  # from l-1 to l
            rk4(levs[l])

• Restriction all levels