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"simulation data not available" problem

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Hello,

I used "tran" analysis for a simulation, with simulation setup all correct (ie. same setup as my prev. known good ones). Indeed, simulation finished, and the tran.tran file was about 290 Giga. However, when I used plot to see nodes' voltage/current, it said the wavefore data was not available, and then it crashed the whole "icfb" tool kits.

I am wondering if this is a bug, or a limitation that I was not aware before. This happened several times so I am wondering if there is a solution for it. Thank you !

san



Originally posted in cdnusers.org by sz5g
Parents

  • After you pare down your data set from 290GB to something in the single digits you can get more mileage with these two points:

    a. Save to sst2 or psfbinf instead of psfbin. Psfbinf saves as floats instead of doubles, increasing (2x) your memory capacity. You will need a recent version of Spectre for this. To enable this, quit ADE, then set either of these options:
    .cdsenv: spectre.envOpts simOutputFormat string "psfbinf"
    .cdsinit: envSetVal("spectre.envOpts" "simOutputFormat" 'string "psfbinf")
    b. Only load a subset of the results into wavescan. From the Wavescan "Results Browser", use Settings->Select Data and select a range of results to load.

    -Samir Jafferali


    Originally posted in cdnusers.org by AMSamirj
Reply

  • After you pare down your data set from 290GB to something in the single digits you can get more mileage with these two points:

    a. Save to sst2 or psfbinf instead of psfbin. Psfbinf saves as floats instead of doubles, increasing (2x) your memory capacity. You will need a recent version of Spectre for this. To enable this, quit ADE, then set either of these options:
    .cdsenv: spectre.envOpts simOutputFormat string "psfbinf"
    .cdsinit: envSetVal("spectre.envOpts" "simOutputFormat" 'string "psfbinf")
    b. Only load a subset of the results into wavescan. From the Wavescan "Results Browser", use Settings->Select Data and select a range of results to load.

    -Samir Jafferali


    Originally posted in cdnusers.org by AMSamirj
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