Tiberius,
I don't think the KNITRO-Matlab ktrlink interface is able to make use
of the matlabpool parallel facilities. From what I understand, these
parallel facilities are primarily used at the moment in the Matlab
optimization tools for finite-difference gradient computations.
Although you can compute gradients using finite-differencing in
KNITRO, we highly encourage the user to provide routines for computing
exact first-derivatives if at all possible.
You may find the following link interesting which provides more
information on the parallel capabilities in the Matlab optimization
tools:
http://www.mathworks.com/company/newsletters/digest/2009/mar/parallel-optimization.html
-Richard Waltz