Stats

  • Locked Locked
  • Replies 5
  • Subscribers 143
  • Views 17078
  • 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 flatten cell in non-graph mode

sparksu

 I want to flatten a hierarchial layout cell.

leHiFlatten() can do this in graph mode.

But compared to leHiFlatten(), it is extremely slow to do this by using dbFlatInst() in non-graph mode.

Is there an alternative way to flatten a database in non-graph mode?

Thanks.

Parents

  • You are right, Andrew.

    Traversing objs did not make my code slow.

     length(objs)=>480

     

    I compared the following codes:

    ;Code A

    ;---------------------------------------------------------------------------

    foreach(obj objs

    when(obj->objType=="inst" dbFlattenInst(obj 32 t) )

    ;end foreach

    ;---------------------------------------------------------------------------

    ;Code B

    ;---------------------------------------------------------------------------

    foreach(obj objs

    when(obj->objType=="inst" dbFlattenInst(obj 32 t nil t) ) ;preserveRODobjs

    );end foreach

    ;---------------------------------------------------------------------------

     

    Code A cost 120 seconds.

    Code B is too slow to be finished. I waited about 0.5 hours and then killed it manually.

    I think it is the argument "preserveRODobjs" who made my code slow.

Reply

  • You are right, Andrew.

    Traversing objs did not make my code slow.

     length(objs)=>480

     

    I compared the following codes:

    ;Code A

    ;---------------------------------------------------------------------------

    foreach(obj objs

    when(obj->objType=="inst" dbFlattenInst(obj 32 t) )

    ;end foreach

    ;---------------------------------------------------------------------------

    ;Code B

    ;---------------------------------------------------------------------------

    foreach(obj objs

    when(obj->objType=="inst" dbFlattenInst(obj 32 t nil t) ) ;preserveRODobjs

    );end foreach

    ;---------------------------------------------------------------------------

     

    Code A cost 120 seconds.

    Code B is too slow to be finished. I waited about 0.5 hours and then killed it manually.

    I think it is the argument "preserveRODobjs" who made my code slow.

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.