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 Slow save statements.. 

Last post Thu, Oct 29 2009 4:35 PM by markbeck. 4 replies.
Started by markbeck 21 Oct 2009 11:06 AM. Topic has 4 replies and 1392 views
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  • Wed, Oct 21 2009 11:06 AM

    • markbeck
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    • Beaverton, OR
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    Slow save statements.. Reply

     So I'm running cadence 6.1.3 and I'm trying to do an APS simulation.  I found that if I do a saveOption('save "all"), it wouldn't save all.  In fact it would randomly throw away nodes that should have been saved (i.e. nodes with two end points connected to transistors). 

    So, I switched to save selected.

     I wrote a small script to generate the save script to save a bunch of nodes and pasted the result into my ocean script.  This ended up being ~ 100+ signals in a save statement.

     Now, when I try launching the simulation it takes MUCH longer to start as it's spending a long time parsing the save statements.  

    Is this what other people are seing?  Does the save command really only work well with just a few nodes?

     

    • Post Points: 20
  • Thu, Oct 22 2009 1:20 PM

    Re: Slow save statements.. Reply

    Mark,

    I wouldn't expect this; it should not present any kind of noticeable slow down to have a large number of explictly saved nodes (unless the list is really huge, maybe). 

    Please can you file a service request with customer support so this can be investigated in more detail, and if something needs fixing, it can be fixed.

    Regards,

    Andrew.

    • Post Points: 20
  • Thu, Oct 22 2009 1:49 PM

    • markbeck
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    Re: Slow save statements.. Reply

     I am not seeing this in 5.1.41, but only in 6.1.3.  

     Created SR: 41815744

     Thanks.

    • Post Points: 20
  • Thu, Oct 22 2009 2:24 PM

    • AMSamirj
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    Re: Slow save statements.. Reply

    Try using a single save statement.  In Spectre syntax it's:

     save *

     

     

     

     

     

    • Post Points: 20
  • Thu, Oct 29 2009 4:35 PM

    • markbeck
    • Top 200 Contributor
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    Re: Slow save statements.. Reply

    I failed to try the most basic 'fix'... shutdown for the weekend, restart on Monday.  The problem seems to have magically disappeared.  

    As for the "save *", I've found that it doesn't work for APS hence the reason for  explicitly declaring each and every net.

     

    • Post Points: 5
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Started by markbeck at 21 Oct 2009 11:06 AM. Topic has 4 replies.