[julia-users] Julian way of tracking a "global" module setting

[Seth]

Hi all,

I'd like to track a setting throughout my module (that will cause the 
[transparent] dispatch of either single-threaded or parallel versions of 
many different functions). Is there a more Julian way of doing the 
following? This seems inelegant:

_parallel = false    # start off without parallelism - user calls 
parallelize() to set/unset.

function parallelize(p::Bool=true)
    global _parallel = p
end


function foo(a::Int) # there will be many functions like this
  if _parallel
     _foo_parallel(a)
  else
    _foo_singlethread(a)
  end
end