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Is there any faster way to get hierarhically tree report?

kbhow

Hi Expert,

I'm working on a big fullchip, and looking for a faster way to get the hierarhically tree summary report from "Top to Bottom". Currently, when i use File->sum from virtuoso layout, it took 18 hours to generate the report, which is too time consuming.

I wrote a simple skill script to recursively search hierarchically and print the report. This required more than 11 hours too. =<

Is there any ways that we can get/generate the hierachically report in faster way (<10 minutes? ). Will "Python" scripting solve this issue?

Your help is much appreciated. Thanks

-How-

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  • How,

    I'm very surprised that it takes 18 hours (or that a SKILL equivalent takes 11 hours). It is only traversing the instHeaders (I believe). You should report this to customer support. I don't know how big the design is, but I just tried it on something reasonably large and it was instantaneous (I was using IC615; not sure what version  you're using). I did have the layout loaded to full depth first - without that it doesn't give the full hierarchy anyway. I can think of ways of optimising it in SKILL to cache the data for each level to avoid repeating having to find it - but I'm still rather surprised it is so slow.

    I don't see how Python would help (after all Python is not supported in Virtuoso).

    Regards,

    Andrew.

Reply

  • How,

    I'm very surprised that it takes 18 hours (or that a SKILL equivalent takes 11 hours). It is only traversing the instHeaders (I believe). You should report this to customer support. I don't know how big the design is, but I just tried it on something reasonably large and it was instantaneous (I was using IC615; not sure what version  you're using). I did have the layout loaded to full depth first - without that it doesn't give the full hierarchy anyway. I can think of ways of optimising it in SKILL to cache the data for each level to avoid repeating having to find it - but I'm still rather surprised it is so slow.

    I don't see how Python would help (after all Python is not supported in Virtuoso).

    Regards,

    Andrew.

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