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netlist creation issue

sjwprcker

Hi,

I try two ways to create netlists of my testbench (IC618, maestro, spectre):

1. right click test name --> recreate the netlist --> the result is fine

2. right click the sim result --> view netlist --> i got different result vs case 1, some cells name with suffix "_schematic"

E.g., In case 1,

//Library name: XXX

//Cell name: XXX

//View name: schematic

//Inherited view list: XXX

subckt XXX...

...

ends XXX

In case 2,

//Library name: XXX

//Cell name: XXX

//View name: schematic

//Inherited view list: XXX

subckt XXX_schematic...

...

ends XXX_schematic

I have no clue how this happen, anyone knows this?

BR

Parents
  • Andrew Beckett

    There are some valid cases where this happens, as explained in this article: Why does the spectre netlister add _schematic extension to subckt names.

    However, there were a number of cases where this was being added inconsistently and differently when re-netlisting was done. This was fixed (I believe) in IC6.1.8-64b.500.24 (and equivalent ICADVM20.1 version) as a result of CCR 2414230. So maybe that's the issue you're facing?

    Andrew

  • sjwprcker
    in reply to Andrew Beckett

    Hi Andrew,

    Thanks a lot to provide such a helpful case. I fully understand the reason. 

    I have a following up question is, is there any way, e.g., env_variable to force re-netlist but not incremental netlist in assembler?

    BR

Reply
  • sjwprcker
    in reply to Andrew Beckett

    Hi Andrew,

    Thanks a lot to provide such a helpful case. I fully understand the reason. 

    I have a following up question is, is there any way, e.g., env_variable to force re-netlist but not incremental netlist in assembler?

    BR

Children
  • Andrew Beckett
    in reply to sjwprcker

    There is a variable that can be used to force re-netlisting, but it's generally a bad idea to set this as then people set it and forget, and then complain about netlist performance. So I don't particularly want to advertise or promote it here as it's very much a workaround.

    Can you move to a more recent hotfix to see if that solves the problem?

    Andrew

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