Writing NPF file to fit PEST requirements (line < 2000 characters)

[vcantarella]

Hi,

I was going to write a question, but after looking at the documentation I have found a solution.

So, PEST requires template files to have lines shorter than 2000 characters. My NPF file had too many parameters in each line.

I was having trouble writing a template PEST file for a model that has too many columns. The standard for flopy is to set the number of columns in the input files as the number of model columns for a structured grid.

After reading the documentation I was able to fix the general settings for the write_simulation() method, just after I declared the simulation object:

model_ws = "modflow_folder"
name = "mfname"
sim = flopy.mf6.MFSimulation(
    sim_name=name, exe_name="mf6", version="mf6", sim_ws=model_ws
)

Now, to edit the general setting for the max number of columns for the input files, I have added:

sim.simulation_data.max_columns_user_set = True
sim.simulation_data.max_columns_of_data = 20

If I set these properties just before writing the files (sim.write_simulation()) it doesn't work.

Is there a better way of doing that?