I am creating a tool that scans existing layout files created by Cadence 6.1.5 Virtuoso Layout to read the layout in OpenAccess. Is it a must that I have the tech.db file in order to run any application built with OpenAccess APIs ?
This is a better question for the OpenAccess forums on the Si2 website.
I wanted to know what is the difference between the cds.lib and libs.def file. I am still new to Cadence and sorry if my questions seem basic.
lib.defs is the OpenAccess standard way of describing where libraries are. It is based on the syntax of cds.lib, but only a subset of cds.lib syntax is supported. Cadence tried for some time to keep the two in sync, but nowadays we only read the cds.lib (via a special OA plugin that can also be used in other applications; this is covered in the documentation). It's possible to generate a lib.defs from cds.lib using the library path editor (both graphically and from the command line - see "cdsLibEditor -help") if you want to use an OA executable without using the cds.lib plugin.