#225 Failed simulation when using "source" multiple times

closed-fixed
frontend (66)
5
2012-12-20
2012-12-15
No

When more than one simulations are ran without restarting ngspice, sometimes the later simulations fail to converge or return different results than when run alone.

Steps to repdroduce:

- Go to ngspice root directory and start ngspice.
- Type "source examples/TransmissionLines/cpl1_4_line.sp".
- Without restarting type: "source examples/TransmissionLines/cpl2_2_line.sp".
- Second simulation fails (doAnalyses: iteration limit reached), but it works correctly when run alone.

I have traced this bug to line 165 in frontend/spiceif.c. Uncommenting the "INPkillMods()" line fixes the bug.

This bug was introduced in commit 99b167b272027aabe4cbee573e4b7a87de63f69d "correct alter of mos geometries for binned models".

Discussion

  • Dietmar Warning

    Dietmar Warning - 2012-12-15

    Thanks Henrik for the report and the proposed fix.
    We must look for a way to differentiate on this place between "alter" and "source".

     
  • Dietmar Warning

    Dietmar Warning - 2012-12-20

    Reactivate and move the modtab delete after the eventloop should now allow further re-source and alter of binned mos models.

     
  • Dietmar Warning

    Dietmar Warning - 2012-12-20
    • assigned_to: nobody --> dwarning
    • status: open --> closed-fixed
     

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