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ADEXL Montecarlo, only netlisting

demsar

Hi!

For the reason of some preprocessing I need to separate the netlisting and the montacerlo simulation itself. Does anybody know, which skill/ocean procedure is used to trigger the netlisting (including the netlist variations in case of using multiple jobs).

Best regards!

Blaz

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  • Thanks a lot Andrew for the quick answer. Sorry for the non respect of the guidelines, I will pay attention to them next time.

    I agree, depending on the MC simu parameters setting : max jobs, nb runs, you can have some very slight difference, regarding the results.

    This can be a problem, because if the target is no FAIL on 1000 runs, the very slight difference can make the designer thinks his design is not robust enough. So, the designer has to get a margin of 1 FAIL depending on his MC simu parameters setting !!

    Example :

    max jobs = 20, nb runs = 100 => 100% PASS (here the firstrun increase every numruns=100/20=5 files). So firstrun=53, which is in fail is not present here.

    max jobs = 60, nb runs = 60 => 1 FAIL  (here the firstrun increase by one to one : /MonteCarlo.0/11/Test:sim_wr:1/ => firstrun=11 and /MonteCarlo.0/12/Test:sim_wr:1/ => firstrun=12). Firstrun=53 is present here.

    There is one thing I don't understand : with the same input files : spectre  input.scs  +escchars +log ../psf/spectre.out  -format psfxl -raw ../psf   +lqtimeout 900 -maxw 5 -maxn 5

    Two points : /MonteCarlo.0/11/Test:sim_wr:1/   and /MonteCarlo.0/12/Test:sim_wr:1/  can have some different result waveforms.

    >diff /home/.../adexl/results/data/MonteCarlo.0/11/Test:sim_wr:1/netlist/input.scs

     /home/.../adexl/results/data/MonteCarlo.0/12/Test:sim_wr:1/netlist/input.scs  

    => same files

    Thanks a lot, if you can give me some details, otherwise, I will get a 1 FAIL margin.


    Best Regards.
    Pierre

     
Reply
  • Thanks a lot Andrew for the quick answer. Sorry for the non respect of the guidelines, I will pay attention to them next time.

    I agree, depending on the MC simu parameters setting : max jobs, nb runs, you can have some very slight difference, regarding the results.

    This can be a problem, because if the target is no FAIL on 1000 runs, the very slight difference can make the designer thinks his design is not robust enough. So, the designer has to get a margin of 1 FAIL depending on his MC simu parameters setting !!

    Example :

    max jobs = 20, nb runs = 100 => 100% PASS (here the firstrun increase every numruns=100/20=5 files). So firstrun=53, which is in fail is not present here.

    max jobs = 60, nb runs = 60 => 1 FAIL  (here the firstrun increase by one to one : /MonteCarlo.0/11/Test:sim_wr:1/ => firstrun=11 and /MonteCarlo.0/12/Test:sim_wr:1/ => firstrun=12). Firstrun=53 is present here.

    There is one thing I don't understand : with the same input files : spectre  input.scs  +escchars +log ../psf/spectre.out  -format psfxl -raw ../psf   +lqtimeout 900 -maxw 5 -maxn 5

    Two points : /MonteCarlo.0/11/Test:sim_wr:1/   and /MonteCarlo.0/12/Test:sim_wr:1/  can have some different result waveforms.

    >diff /home/.../adexl/results/data/MonteCarlo.0/11/Test:sim_wr:1/netlist/input.scs

     /home/.../adexl/results/data/MonteCarlo.0/12/Test:sim_wr:1/netlist/input.scs  

    => same files

    Thanks a lot, if you can give me some details, otherwise, I will get a 1 FAIL margin.


    Best Regards.
    Pierre

     
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