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Setup Spectre simulation in batch mode

pyohayo

Hello,

How to setup Spectre simulations in batch mode according to the following scenario:

  • circuit - the same for all runs
  • each run use a particular .vcd stimuli
  • once i-th simulation finished, results are saved in a particular folded (for post-processing) ... not to be crushed by i+1 th simulation

I beleive that netlist for each of N cases must be generated in advance, then all these netlists are processed in a loop that should be created somewhere ?

Thanks

  • You could also do this easily with OCEAN:

    vcdfiles=list(list("vcd1.vcd" "vcd1.info") list("vcd2.vcd" "vcd2.info"))
    simulator('spectre)
    design(lib cell view "r")
    analysis(...)
    runNum=1
    foreach(vcdfile vcdfiles
      vcdFile(car(vcdfile))
      vcdInfoFile(cadr(vcdfile))
      resultsDir(sprintf(nil "/path/to/results/vcdResults%d" runNum))
      run()
      runNum++
    )

    Something like that. This is completely untried, but it should work.

  • in reply to Andrew Beckett

    I tried with Ocean.

    I've sligthle modified your code - I use the same info for 4 .vcd.

    Here is reduced of ocean file (I removed not-relevant sections, e.g. modelFile and definitionFile).

    ocnWaveformTool( 'wavescan )
    simulator( 'spectre )
    design( "path-to-project-directory/simulation/data/slice_test/spectre/schematic/netlist/netlist")
    resultsDir( "path-to-project-directory/simulation/data/slice_test/spectre/schematic" )
    projectDir = "{path-toproject-directory}"
    vcdfiles=list("slow_000.vcd" "slow_111.vcd" "fast_000.vcd" "fast_111.vcd")
    vcdInfoFile(
    "path-to-project-directory/slow_fast.info"
    )
    analysis('tran ?stop "950u" ?errpreset "moderate" )
    desVar( "qin2" 1p )
    desVar( "qin" 58f )
    option( 'maxnotestologfile "1000"
    'maxwarnstologfile "1000"
    'maxwarns "1000"
    'warn "yes"
    'maxnotes "1000"
    )
    option( ?categ 'turboOpts 'uniMode "Turbo"
    )
    saveOption( 'subcktprobelvl "" )
    saveOption( 'nestlvl "4" )
    saveOption( 'save "lvlpub" )
    temp( 27 )
    run()
    runNum=1
    foreach(vcdfile vcdfiles
       vcdFile(strcat(projectDir vcdfile))
       resultsDir(sprintf(nil "path-to-project-directory/vcdResults%d" runNum))
       run()
       runNum++
    )

    Obviously Spectre did only one run ... but created 4 different directories (vcdResults1 ... vcdResults4) that contain the same data.

    I checked vcdResults1 ... vcdResults4 creation time - they are the same.

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