run.cfg.default

[grid]

# number of timesteps
nt = 100

# number of spatial grid points in x
nx = 101

# number of spatial grid points in y
ny = 101

# length of timestep
ht = 0.01

# spatial domain in x
Lx = 1.0
x1 = 0.0
x2 = 0.0

# spatial domain in y
Ly = 1.0
y1 = 0.0
y2 = 0.0


[solver]

# run in linear mode (with prescribed streaming function phi)
# or in nonlinear mode (solving the Poisson equation for phi)
nonlinear = True

# PETSc linear solver type
petsc_ksp_type = gmres

# PETSc linear solver relative convergence tolerance
# (relative decrease in the residual norm)
petsc_ksp_rtol = 1e-07

# PETSc linear solver absolute convergence tolerance
# (absolute size of the residual norm)
petsc_ksp_atol = 1e-10

# PETSc linear solver maximum number of iterations
petsc_ksp_max_iter = 1000

# PETSC nonlinear solver absolute convergence tolerance
petsc_snes_rtol = 1e-20

# PETSC nonlinear solver relative convergence tolerance
petsc_snes_atol = 1e-12

# PETSC nonlinear solver convergence tolerance in terms
# of the norm of the change in the solution between steps
petsc_snes_stol = 1e-14

# PETSC nonlinear solver maximum number of iterations
petsc_snes_max_iter = 20


[initial_data]

# python script with init functions 
python = None


[io]

# restart run from hdf5 file, not implemented yet
hdf5_input = None

# write data to hdf5 file
hdf5_output = None

# save every nsave'th timestep
nsave = 1