Scope when using multiple modules

@urp wrote:

I am new at using Julia. I am writing a PDE solver. I would like to have a struct that stores all mesh/simulation variables that could then be accessed from other modules in my code. However, I am having some trouble with the result (due to issues related to scope of variables):
Here is the simplified code to mimic the issue:

I have three files: MyParams.jl, ModuleA.jl main.jl,

--------------- MyParams.jl --------------------
module MyParams
param_A =
end

---------------ModuleA.jl------------------------
module ModuleA
include(“MyParams.jl”)

function Set_Param_A(N)
push!(MyParams.param_A, N);
println("In ModuleA, size of param_A: ", length(MyParams.param_A));
end

end

--------------main.jl---------------------------
include(“ModuleA.jl”)
include(“MyParams.jl”)

ModuleA.Set_Param_A(10);
println("In main, size of param_A: ", length(MyParams.param_A));

My output is:
In ModuleA, size of param_A: 1
In main, size of param_A: 0

Two questions:

• Why is size of param_A not 1, when accessed from main?
• What is the best way to store simulation parameters/mesh that needs to be accessed and modified from other modules?

Thanks

Posts: 2

Participants: 2

Read full topic