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Technology hierarchy error that causes objects can't be selected.

LoTJF

Hi experts,

    The following warning messages lead to no objects are selectable, how can I solve this issue? Thank you in advance.

*WARNING* (TECH-2000178): A User Units conflict has been detected in the technology hierarchy.
It is caused by the following list of Libraries: gpdk090; cdsDefTechLib;
*WARNING* (TECH-2000178): A DBU per UU conflict has been detected in the technology hierarchy.
It is caused by the following list of Libraries: gpdk090; cdsDefTechLib;
*WARNING* (TECH-2000178): A User Units conflict has been detected in the technology hierarchy.
It is caused by the following list of Libraries: gpdk090; cdsDefTechLib;
*WARNING* (TECH-2000178): A Layer Number conflict has been detected in the technology hierarchy.
It is caused by the following list of layers: gpdk090/Nimp (#12); cdsDefTechLib/L12 (#12);
*WARNING* Technology database conflict: There are layer numbers which conflict in the incremental techlibs
*WARNING* (LE-104271): Assura is not available.

  • It's pretty strange, if I run techDB Checker at first, then it could be loaded normally.

  • The fact that it thinks that cdsDefTechLib has a layer called L12 is a bit strange. I'm wondering if you've somehow ended up with a local definition of cdsDefTechLib which was used in a stream in operation (and hence layers have been created by that), or maybe that you've somehow overwritten the installation definition of cdsDefTechLib from whichever stream it is coming from.

    So check your cds.lib file to see if it is locally defined, and have a look in <ICinstDir>/tools/dfII/etc/cdsDefTechLib (you might want to check the similar location in the ASSURA installation too) to see if files have been modified there recently... at least more  recently than the other files in the installation.

    Regards,

    Andrew.

  • Hi Andrew,

        Thank you for the help, I've fixed the L12 problem but there are still some problems going on here.

    I've re-decompress the gpdk045 tar ball it still shows some warning messages as below and once again if I use TechDB checker to check gpdk045 then it will work.

    *WARNING* (TECH-2000178): A DBU per UU conflict has been detected in the technology hierarchy.
    It is caused by the following list of Libraries: gpdk045; cdsDefTechLib;
    *WARNING* (TECH-2000178): A User Units conflict has been detected in the technology hierarchy.
    It is caused by the following list of Libraries: gpdk045; cdsDefTechLib;
    *WARNING* (TECH-2000178): A User Units conflict has been detected in the technology hierarchy.
    It is caused by the following list of Libraries: gpdk045; cdsDefTechLib;
    *WARNING* (TECH-2000050): Unable to set references on tech because conflicts would result in tech gpdk045.

  • It's so weird that if I use IC616_ISR8 then no gpdk complain but if I use IC616_ISR9 then there will be a lot of complaining.

  • I still suspect that your cdsDefTechLib has got messed up somehow. Can you check:

    techIsDBUPerUUSet(techGetTechFile(ddGetObj("cdsDefTechLib")) "maskLayout")
    techIsDBUPerUUSet(techGetTechFile(ddGetObj("gpdk045")) "maskLayout")
    techGetDBUPerUU(techGetTechFile(ddGetObj("cdsDefTechLib")) "maskLayout")
    techGetDBUPerUU(techGetTechFile(ddGetObj("gpdk045")) "maskLayout")
    techGetViewTypeUnits(techGetTechFile(ddGetObj("cdsDefTechLib")))
    techGetViewTypeUnits(techGetTechFile(ddGetObj("gpdk045")))

    I'd like to see what they all report.

    Thanks,

    Andrew.

  • techIsDBUPerUUSet(techGetTechFile(ddGetObj("cdsDefTechLib")) "maskLayout")
    t
    >
    techIsDBUPerUUSet(techGetTechFile(ddGetObj("gpdk045")) "maskLayout")
    t
    > techGetDBUPerUU(techGetTechFile(ddGetObj("cdsDefTechLib")) "maskLayout")
    160.0
    > techGetDBUPerUU(techGetTechFile(ddGetObj("gpdk045")) "maskLayout")
    2000.0
    >
    techGetViewTypeUnits(techGetTechFile(ddGetObj("cdsDefTechLib")))
    (("maskLayout" "micron" 160)
    ("schematic" "millimeter" "_def_")
    )
    >

    techGetViewTypeUnits(techGetTechFile(ddGetObj("gpdk045")))

    (("maskLayout" "micron" 2000)
    ("schematic" "inch" 160)
    ("schematicSymbol" "inch" 160)
    ("netlist" "inch" 160)
    ("hierDesign" "_def_" 2000)
    )

  • Your cdsDefTechLib has had its tech.db overwritten somehow, so your installation is broken. It should return:

    techIsDBUPerUUSet(techGetTechFile(ddGetObj("cdsDefTechLib")) "maskLayout")
    nil
    techGetDBUPerUU(techGetTechFile(ddGetObj("cdsDefTechLib")) "maskLayout")
    1000.0
    techGetViewTypeUnits(techGetTechFile(ddGetObj("cdsDefTechLib")))
    nil

    It certainly shouldn't be returning 160 DBU per user unit for maskLayout.

    Andrew.

  • Andrew, Thank you for prompt help. It does help. Wish you all the best.

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