Stats

  • Locked Locked
  • Replies 2
  • Subscribers 125
  • Views 2387
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

How to perform PVS XOR/FastXOR for multiple layouts from two libraries automatically, from the GUI or terminal

iampaulq

Hi All,

I have two libraries, each having 500 layouts. I want to make sure that the layouts inside one of the libraries match those in the other library.. How do I setup my PVS XOR/FastXOR to do this either from the GUI or Command line using skill or any other scripting language?

Also, I tried exploring different things to run PVS XOR from the command line From the documentation, 'pvs -drc' should work for XOR. and 'fastxor layout1 layout2' should work. I tried both but the commands arent recognized in my machine.

I tried going to the directory where pvs and fastxor executables are installed. It now runs, but it throws an error due to missing libraries like glibcxx.

Another thing I tried is to use "{pvsdir}"/pvsvirt  like what this guy did: https://community.cadence.com/cadence_technology_forums/f/custom-ic-design/40474/error-version-glibcxx_3-4-15-not-found-when-running-pvs-lvs-in-command-line
I just copied it from the logs of fastxor, but somehow it does not work when run from the command line.

Thanks a lot in advance

  • The simplest would be to use the fastxor executable from the command line (this accepts stream (GDS) files). I have no idea why they wouldn't be recognised, unless you don't directly have the <PVSinstDir>/bin or <PVSinstDir>/tools/bin in your UNIX path but instead have a wrapper around them in your environment - and only have selected PVS commands available. If you fix that, you can run fastxor from the command line, and hence from a script (or from a SKILL script).

    Andrew

  • in reply to Andrew Beckett

    Hi Andrew. Thanks for the quick response.

    I tried going to the pvs/bin directory and running fastxor using

    ./fastxor gds1 gds2 cellname

    It no longer throws an error on missing libraries. For some reason the logs of fastxor from the pvs gui shows a different path for the executables

    I just have 1 more question. I have two gds files inverter.gds and inverter_copy.gds. they are exactly the same, i just wanted to to test the functionality of fastxor. What should cellname be? I tried using "inverter" as the cellname but it throws an error

    Error 037: cannot open file '.xcells' for writing. Check writing permissions.

    what is this xcells file and where is it located? Thanks in advance!

    Edit: Another thing is that I can't access your tutorial videos on support.cadence. After I enter the OTP, the page just keeps refreshing.

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.