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 Transient simulation - save state 

Last post Mon, Jun 30 2014 6:48 AM by Andrew Beckett. 3 replies.
Started by naveiitb 26 Jun 2014 12:29 PM. Topic has 3 replies and 937 views
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  • Thu, Jun 26 2014 12:29 PM

    • naveiitb
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    • Joined on Thu, Jun 26 2014
    • Posts 2
    • Points 40
    Transient simulation - save state Reply

    Hi,

    I am a research scholar  at IIT bombay, India. 

    I have a long transient simulation running, which has frozen at 1.8us in a 10 us simulation. Is there any way to extract the state of the circuit and restart a simulation from the simulator temperory files. I have given save clock as 100n and savetime as 1800 and savefile as trransave.tc. The simulation ran for approximately 3hrs and is frozen for 3 more hours as of now.

     

    Kindly let me know how to proceed.

     Thanks in advance.

    • Post Points: 20
  • Fri, Jun 27 2014 6:49 AM

    Re: Transient simulation - save state Reply

    Yes, you can run a simulation using the recover parameter of transient, giving it one of those files that got saved by the savefile/savetime etc parameters. 

    Andrew.

    • Post Points: 20
  • Sat, Jun 28 2014 11:01 PM

    • naveiitb
    • Not Ranked
    • Joined on Thu, Jun 26 2014
    • Posts 2
    • Points 40
    Re: Transient simulation - save state Reply

    Yes, but I have not given save time parameter.

    I had only specified save clock as 100n and save file filename. My understanding was it would create a state file every 100ns of simulation time, but I could notlocate any such files. 

    When I specify savetime I do get the state file, but not for save clock. Please clarify.

    Naveen

    • Post Points: 20
  • Mon, Jun 30 2014 6:48 AM

    Re: Transient simulation - save state Reply

    Naveen,

    savetime was just an example. You could use saveclock or saveperiod too.

    saveclock is in WALL time not simulation time. It cannot be less than a second - so setting saveclock to 100n will not do anything (saving the state every 100ns of real time would be infeasible). If you set it to 60, it would save every minute (even that is probably too frequent). 

    If you want every 100ns of simulation time, use saveperiod=100n.

    These both work - I just tested them.

    Regards,

    Andrew.

    • Post Points: 5
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Started by naveiitb at 26 Jun 2014 12:29 PM. Topic has 3 replies.