Presence of println is affecting function behavior

New to Julia
11

Thanks for the helpful comments to everyone who replied! After some trial and error I found my problem was in my use of the @distributed macro without an @sync. Below is a MWE highlighting the behavior I was encountering.

using Distributed

function sync_foo(T)
    arr = [1,T]
    @sync @distributed for i in 2:T-1
        push!(arr, i)
    end

    return arr
end

function foo(T)
    arr = [1,T]
    @distributed for i in 2:T-1
        push!(arr, i)
    end

    return arr
end

function foo_printer(T)
	arr = foo(T)
    println(arr)
    return arr
end

function foo_noprinter(T)
	arr = foo(T)
    return arr
end

function sync_foo_printer(T)
	arr = sync_foo(T)
    println(arr)
    return arr
end

function sync_foo_noprinter(T)
	arr = sync_foo(T)
    return arr
end

T = 100000
arr = foo_printer(T)
l1 = size(arr)
arr = foo_noprinter(T)
l2 = size(arr)
arr = sync_foo_printer(T)
l3 = size(arr)
arr = sync_foo_noprinter(T)
l4 = size(arr)
println(l1,l2,l3,l4) # (100000,), (2,), (100000,), (100000,)
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