parallel_run and unix_g

[Antoine Monmayrant]

Hi everyone,

I would like to know whether it's possible to run "unix_g" inside a 
function that is called by parallel_run.
I need to do this as I repeatedly call a TSP sorting algorithm (LKH  
http://www.akira.ruc.dk/~keld/research/LKH/ ) using unix_g on huge 
datasets that I cannot process with scilab. I would like to get several 
calls in parallel to reduce the time it takes to sort all my datasets.
It does not seem to work, is this a limitation of parallel_run?
Here is a short script to show my problem:

//////////////////////////////////////////////////////////////////////////
//dummy function calling unix_g
function res=g(i)
    res=unix_g("echo i="+string(i))
endfunction

//result when called in a loop
good_res=[];
for i=[1:3]
    disp(i);
    good_res=[good_res,g(i)];
end
//here good_res=["i=1","i=2","i=3"]

//result when called with parallel_run
bad_res=parallel_run(1:3, g);
//here bad_res=[0,0,0]

bad_res
good_res
//////////////////////////////////////////////////////////////////////////



Any workaround?

Antoine