The source code for NUPCF is available in an executable jar file at http://www.ccs.neu.edu/home/kenb/nupcf.jar

To try the applet, select values for the number of vertices. length of the simplicial complex, and the number of maximal simplices. Then click on Generate. To stop generating click on Stop. The number of attempts to find a PC structure for each candidate will give some indication of how long it will take. Anything over 100,000 will be so slow that it may appear that the applet has failed.