Stats

  • Locked Locked
  • Replies 4
  • Subscribers 144
  • Views 17824
  • 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 does the parametric analysis work?

imagesensor123

Hello,

       we all know that the parametric analysis is quite a useful tool in cadence, we can sweep any parameters in the design. I refer to the 

cadence user guide and I find that it is a "for loop" simulation. I perform  the same simulation by using the same "for loop" , but I find the parametric analysis is much faster than the common "for loop". I would like to know why the parametric analysis is faster? is there some optimization for the parametric analysis ?

 regards,

zfeng 

Parents

  • I did a similar example. My simulation was a bit slower, but what I saw was:

     

      interactive
    		 batch
    for loop
    		 14
    		 29
    OCEAN paramRun
    		 15
    		 30
    ADE parametric
    		 9
    		 12

    The difference in speed between OCEAN and ADE is primarily all the printing it does to the CIW (or rather the code that has to pass that on). There are various switches to cut down the verbosity of spectre on the screen, but you can't turn it off completely. I think this ought to be possible (it could call spectre with =log instead of +log).

    I'd suggest logging a Case with customer support.

    Regards,

    Andrew.

Reply

  • I did a similar example. My simulation was a bit slower, but what I saw was:

     

      interactive
    		 batch
    for loop
    		 14
    		 29
    OCEAN paramRun
    		 15
    		 30
    ADE parametric
    		 9
    		 12

    The difference in speed between OCEAN and ADE is primarily all the printing it does to the CIW (or rather the code that has to pass that on). There are various switches to cut down the verbosity of spectre on the screen, but you can't turn it off completely. I think this ought to be possible (it could call spectre with =log instead of +log).

    I'd suggest logging a Case with customer support.

    Regards,

    Andrew.

Children
No Data

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.