Hi, I'm a doctoral student of ECE, Carnegie Mellon University and an old user of Alliance. Now I'm trying to develop a new standard-cell placer and router. I want to use the source code of Alliance's scr as the starting point. However, the source code is somewhat difficult to understand. So can you give me some additional documents and papers? Thanks a lot. I'm looking forward to hearing from you. Yangdong Deng Office: HH2131 Phone: (412)268-5234 Dept. of Electrical and Computer Engineering Hamerschlag Hall - 5000 Forbes Avenue Pittsburgh, PA 15213-3890 USA