Hi! I did not address CZO [Olivier] directly, but I noticed his name appears a lot in the cvsweb. Rather then attempting to submit my changes to the CVS tree, I am inquiring about the procedure and policy for making enhancements which may be considered for inclusion in the production code. E.g., regression testing requirements, review, QA, etc. I just added a '-v' (verbose) option to "scr" to display info on it's progress on matching physical to logical connector views. I was motivated to do this when I ran into a problem with the "fulladder" design example off your web page under "QuickStart". It runs fine now, but I was having StdCell library problems and I forgot I created a "fulladder.scr" file which include a reference to "carry" which was not in the "SCP" netlist. While I was editing the code and compiling with GNU gcc, I noticed several warnings which I fixed (mostly just to eliminate the warnings with no material consequences to the algorithms). One thing I also did was to copy the `print_elapsed_time' function from the "sl/big_main.c" file to the "mbk/mbk_sys.c" file for inclusion in the "mut325" library. I did this because I thought `print_elapsed_time' was a nice thing to have and a good candidate for sharing amongst different programs. BTW, I was a little confused about the output from scr which states: 46% saved in 13.7 s E.g., from my run on design "Count4Ones": Alliance CAD System 4.5.0, scr 5.3 Copyright (c) 1991-2001, ASIM/LIP6/UPMC E-mail support: alliance-support@asim.lip6.fr Started on Sun Dec 23 06:18:25 2001 Loading SCP data base ... Generating initial placement ... 25 cells 30 nets in 3 rows Placement in process of treatment : 100% 46% saved in 13.7 s Total elapsed time: 1.26 sec (0 min) The above output illustrates the timing info, useful for gauging progress and profiling. I will investigate the discrepancy later, but it's obvious that a sub-step could not have taken 13.7 seconds when the total elapsed time was only 1.26 seconds. Maybe I am interpreting the message wrong? The changes I made should work fine under any Unix system, though I made them under Cygwin. Thanks & Regards, Art