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irun: Simulating an already generated snap-shot.

Abid

 Hi,

 I want to generate a snap-shot with name house and simulate it later.

To generate snap-shot, I use the following command,

irun -elaborate -snapshot house source.sv

This results in a folder INCA_libs/house.lnx86.11.10.nc

To simulate the snap-shot house, I use the following command,

irun -r  worklib.house:sv

I get an error stating that the folder  INCA_libs/irun.lnx86.11.10.nc is missing.

I see that even though I use the -r option with irun, it does not use the snap-shot house.

I also tried the -R option, but even with that I get the same error.

I see that if snap-shot name is chosen as "irun", this error is not seen. 

How do I make irun simulate the snap-shot house (snap-shot name other than "irun")?

Regards,

Abid.

 

  • I tried it using Incisive 12.20, not 11.10.

     irun -r house

     gave me

    irun: *N,NOSNPR: The default work directory (./INCA_libs/irun.lnx86.12.20.nc) is missing.  -r house was used and a matching -snapshot house scratch directory was found.  irun will imply the option -snapshot house.
    Loading snapshot worklib.house:sv .................... Done
    ncsim> source /p/icom/eda/cadence/incisive/12.20.002/tools/inca/files/ncsimrc
    ncsim> run
    ncsim: *W,RNQUIE: Simulation is complete.

    That is, I got a NOTE from irun, not an error. It still ran.

    If I run it like this:

    irun -r house -snapshot house

    I did not get even the note.

    Regards,

    Shalom 

     

  • Hi Shalom,

    Even with 11.10, irun -r house -snapshot house gives the correct output.

    Earlier, I used irun -r house which gave error. On adding, the -snapshot option, the error goes aways.

    But when we look at the output of irun -helpall, we see that -snapshot option is used to generate a snapshot. And in this case, we do not want to generate a snapshot, but want to simulate an already existing snapshot. So I am not sure if using -snapshot option in this case is correct.

    Regards,

    Abid.

  • Hi,

    The answer is in the documentation.

     

    In the irun User Guide, it says,

    Note: If you run irun with the -snapshot option (or its alias -name) to specify a name for

    the simulation snapshot, you must include the original -snapshot option when you invoke

    irun with irun -r snapshot_name.

    -helpall just gives you a one-line description, not all the information.

    Regards,

    Shalom

  • That answers my question.

    Thanks for your help Shalom.

    Regards,

    Abid.

     

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