Hi,
First of you need to change the line with createTask, and tell MATLAB that you expect a single output from the try1 function:
createTask(j1,@try1,1,{2});
Second, the composite value is really just a reference to a value stored on a different machine. When using composites, values are never transfered between processes (machines). If a process containing a value dies, the corresponding composite value will also disappear.
To output the contents of op back to the client you will need to modify your try function as follows:
function op=try1(ip)
spmd
op=rand(ip);
end;
op = {op{:}};
end
or
function output=try1(ip)
spmd
op=rand(ip);
end;
for i = 1:numel(op)
output{i} = op{i}
end
