hi!i am just wondering why everytime i run the scr command, a warning appears.nevertheless, it still creates a .ap file.i am not sure,however, if that file is accurate due to the warning.what should i do to avoid it? does the .ap file it correct?is it okay to continue despite of the warning? bash-2.02$ scr -p -r heart @@@@ @ @@@@ @ @@@@@@@ @ @@ @@ @@ @@ @@ @@ @ @@ @ @@ @@ @@@ @@ @ @@ @@ @@@@ @@ @@ @@ @@@@ @@ @@@@@ @@@ @@ @@ @@ @ @@ @@ @@ @@ @@ @@ @@ @ @@ @@ @@@ @ @@ @@ @@ @@ @ @@@@ @@@@ @@@@@ @@@ Standard Cell router Alliance CAD System 4.0.6, scr 5.3 Copyright (c) 1991-2001, ASIM/LIP6/UPMC E-mail support: alliance-support@asim.lip6.fr Loading logical view : heart Warning 2 : consistency checks will be disabled *** mbk warning *** lofigchain is missing on lofig heart. Placing logical view : heart Loading SCP data base ... Original width : 1653 Generating initial placement ... 579 cells 612 nets in 11 rows Placement in process of treatment : 100% 76% saved in 150.4 s Saving placement 100% Checking consistency between logical and physical views Loading SCR data base ... Deleting MBK data base ... Global routing ... Channel routing ... |_____Routing Channel : scr_p2 |_____Routing Channel : scr_p4 |_____Routing Channel : scr_p6 |_____Routing Channel : scr_p8 |_____Routing Channel : scr_p10 |_____Routing Channel : scr_p12 |_____Routing Channel : scr_p14 |_____Routing Channel : scr_p16 |_____Routing Channel : scr_p18 |_____Routing Channel : scr_p20 |_____Routing Channel : scr_p22 |_____Routing Channel : scr_p24 Making vertical power and ground wires Saving layout : heart bash-2.02$ pls help... hoping for your immediate reply... thanks, helen ---- www.edsamail.com