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 one question 

Last post Mon, Dec 5 2011 2:02 AM by hannes. 1 replies.
Started by redrabbit 01 Dec 2011 04:30 AM. Topic has 1 replies and 1735 views
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  • Thu, Dec 1 2011 4:30 AM

    • redrabbit
    • Top 500 Contributor
    • Joined on Tue, Nov 22 2011
    • Posts 26
    • Points 385
    one question Reply

    hi,guys

    what is Pgen,what is IntelliGen........????

     

    In IntelliGen, once generation of me begins, this process can be invoked for fields that are not
    descendants of me before calling me.post_generate(), in order to generate fields in an order that suits
    the user-defined constraints. (In Pgen, once generation of me begins, this process is only invoked for
    descendant fields of me before me.post_generate() is called.)

    how to understand this sentence????   (from sn_igenuser)

    • Post Points: 20
  • Mon, Dec 5 2011 2:02 AM

    • hannes
    • Top 150 Contributor
    • Joined on Fri, Nov 14 2008
    • Bracknell, Berkshire
    • Posts 43
    • Points 785
    Re: one question Reply

    Hello redrabbit,

    Pgen is the old Specman constraint solver, and IntelliGen is the new one. Until version 10.2 you
    need to select IntelliGen using a config flag (set_config(gen,default_generator,IntelliGen) before you
    load you code. Starting with 11.1, IntelliGen will be the default solver, so you only need to change
    the config if you want to use the old one (Pgen).

     

    The big difference (which you have already worked out) between Pgen and IntelliGen is that in
    Pgen the solver looks at one field at the time. In IntelliGen all fields (no matter in which point of
    the environment hierarchy they are) which are related via constraints are solved together. Doing so
    can modify the order in which postand pre_generate() are called (this is what is described in the
    user guide).

    It appears that you have many questions on the generator (there are some other posts from you).
    Maybe it would be helpful to get in touch with Cadence and try to arrange some on-site support
    for a couple of hours with a local AE to solve your issues.

    Best regards,
    -hannes

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    • Post Points: 5
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Started by redrabbit at 01 Dec 2011 04:30 AM. Topic has 1 replies.