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problem for big circuit extraction (Read 4837 times)

lily

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Posts: 14
seattle

problem for big circuit extraction
Jul 27^th, 2005, 1:17pm

I am trying to extract a very big layout using Cadence diva extract. And I got the "insufficient memory" problem. I even tried to modify the divaEXT.rul to ignore those RCs, but still cannot get it passed. :(
My system already got 16GB M+13 GB virtual M. Is there any option in the tool for less memory consumption? or any better way that I can try to extract this circuit?

Thanks a lot!

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Paul Community Fellow Offline Posts: 351 Switzerland	Re: problem for big circuit extraction Reply #1 - Jul 28^th, 2005, 12:31am Hi Lily, try google for comp.cad.cadence +"diva" +"large circuits" Although you don't specify the size of your design, these posts are quite explicit, Diva is probably not the right tool for full-chip extraction. Do you have Assura or Dracula available for such a job? Paul
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lily Junior Member Offline Posts: 14 seattle	Re: problem for big circuit extraction Reply #2 - Jul 28^th, 2005, 3:54pm Hi Paul, Thanks for your reply! We only got the divaEXT.rul from the PDK. We do have Assura but I don't know how to use it if we just have the diva rule file.
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Paul Community Fellow Offline Posts: 351 Switzerland	Re: problem for big circuit extraction Reply #3 - Jul 29^th, 2005, 2:32am Lily, Assura is able to work with Diva rules (it may require some modifications though, I think). However, I never tried it. Have a look at the Diva to Assura Migration Guide in the Assura installation documentation. Good Luck Paul
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lily Junior Member Offline Posts: 14 seattle	Re: problem for big circuit extraction Reply #4 - Jul 29^th, 2005, 1:05pm Hi Paul, Thank you so much! I will look at it. lily
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