NLP problems:
%
%   penm=nlp_define('../../problems/ampl-nl/camshape100.nl');
%   prob=penlab(penm); 
%   [alx,aldx,alddx] = setuptestpoint(prob,'datafiles/pennlp_camshape100_a.dcf','pennlp');
%   prob.eval_alx(); 
%   prob.ALx 
%   alx
% 
% *Other problems stored in ./datafiles:*
%
% truss1 - very small matrices, no inequalities 
%
%  sdpdata=readsdpa('datafiles/truss1.dat-s'); 
%  [alx,aldx,alddx] = setuptestpoint(prob,'datafiles/pensdpa_truss1.dcf','pensdp');
% 
% theta1 - one bigger matr