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Processing raw Spectre Monte Carlo data ?

MarkGr15

I am using OceanXL (within ADEXL created scripts) to kick off Monte Carlo simulations. I would like to be able to post process the data myself, to be able to calculate the mean, sigmas etc... 

Is the raw data available for this, and how is it organized? I am having a hard time deciphering the file structure etc....

I do see the results listed in an output log, when I add " -log ocean_montecarlo_output.log" as a an option to the command line that I use to kick off my scripts.

The upshot is I want to be able to find the raw data in the output directory, and post process the measured data.

I am using IC6.1.6-64b.500.9.  

spectre -W  => sub-version  13.1.1.049

thanks

Mark

Parents

  • Martin,

     I couldn't find it, but it looks as if it was probably the ADE XL Rapid Adoption Kit that's on Cadence Online Support. So I created the example again from scratch (just making sure the tests were called AC and TRAN, which I think the RAK suggests you do), dumping the OCEAN script, and then adding the additional lines in:

    ;====================== Set to XL mode =========================================
ocnSetXLMode()
ocnxlProjectDir( "./simulation" )
ocnxlTargetCellView( "opamp090" "full_diff_opamp" "adexl" )
ocnxlResultsLocation( "" )
ocnxlSimResultsLocation( "" )

;====================== Tests setup ============================================

;---------- Test "AC" ------------- 
ocnxlBeginTest("AC")
simulator( 'spectre )
design( "opamp090" "full_diff_opamp_AC" "schematic")
path( "./models/spectre" )
modelFile( 
    '("gpdk090.scs" "NN")
)
analysis('ac ?start "1"  ?stop "10G"  )
analysis('dc ?saveOppoint t  )
desVar(	  "gain" 10	)
desVar(	  "vcm" 1	)
desVar(	  "vdd" 2	)
envOption(
	'firstRun  t 
	'analysisOrder  list("pz" "dcmatch" "stb" "tran" "envlp" "ac" "dc" "noise" "xf" "sp" "acmatch" "pss" "pac" "pstb" "pnoise" "pxf" "psp" "qpss" "qpac" "qpnoise" "qpxf" "qpsp" "hb" "hbac" "hbnoise" "hbsp" "sens" "lf") 
)
saveOption( ?infoOptions list(list("modelParameter" "models" "rawfile" "" "" "" t) list("element" "inst" "rawfile" "" "" "" t) list("outputParameter" "output" "rawfile" "" "" "" t) list("designParamVals" "parameters" "rawfile" "" "" "" t) list("primitives" "primitives" "rawfile" "" "" "" t) list("subckts" "subckts" "rawfile" "" "" "" t) list("asserts" "assert" "rawfile" "" "" "" nil) list("extremeinfo" "all" "logfile" "" "yes" "" nil) list("<Click_To_Add>" "none" "rawfile" "" "" "" nil) ) )
save( 'i "/V0/PLUS" )
temp( 27 ) 
ocnxlOutputTerminal( "/V0/PLUS" ?save t)
ocnxlOutputExpr( "dB20(value(VF(\"/outdiff\") 1))" ?name "DCGain" ?plot t)
ocnxlOutputExpr( "abs(IDC(\"/V0/PLUS\"))" ?name "Current" ?plot t)
ocnxlOutputExpr( "abs((VDC(\"/inp\") - VDC(\"/inn\")))" ?name "InputRandomOffset" ?plot t)
ocnxlEndTest() ; "AC"

;---------- Test "TRAN" ------------- 
ocnxlBeginTest("TRAN")
simulator( 'spectre )
design( "opamp090" "full_diff_opamp_TRAN" "schematic")
path( "./models/spectre" )
modelFile( 
    '("gpdk090.scs" "NN")
)
analysis('tran ?stop "100n"  ?annotate "no"  ?save "selected"  
		?oppoint "no"  )
desVar(	  "gain" 10	)
desVar(	  "vcm" 1	)
desVar(	  "vdd" 2	)
envOption(
	'analysisOrder  list("pz" "dcmatch" "stb" "tran" "envlp" "ac" "dc" "noise" "xf" "sp" "acmatch" "pss" "pac" "pstb" "pnoise" "pxf" "psp" "qpss" "qpac" "qpnoise" "qpxf" "qpsp" "hb" "hbac" "hbnoise" "hbsp" "sens" "lf") 
)
option(	'dochecklimit  "no" 
)
saveOption( ?outputParamInfo nil )
saveOption( ?elementInfo nil )
saveOption( ?modelParamInfo nil )
saveOption( 'currents "selected" )
saveOption( 'pwr "all" )
saveOption( 'save "selected" )
save( 'v "/outdiff" "/OUTN" "/OUTP" )
temp( 27 ) 
ocnxlOutputSignal( "/outdiff" ?save t)
ocnxlOutputSignal( "/OUTN" ?save t)
ocnxlOutputSignal( "/OUTP" ?save t)
ocnxlOutputExpr( "slewRate(VT(\"/outdiff\") 0 t ymax(VT(\"/outdiff\")) t 10 90 nil \"time\")" ?name "SlewRate" ?plot t)
ocnxlOutputExpr( "(settlingTime(VT(\"/outdiff\") 0 t 1e-07 t 1) - 5e-08)" ?name "SettlingTime" ?plot t)
ocnxlEndTest() ; "TRAN"

;====================== Sweeps setup ===========================================
ocnxlSweepVar("gain" "10")
ocnxlSweepVar("vcm" "1")
ocnxlSweepVar("vdd" "2")

;====================== Model Group setup ==========================================

;====================== Corners setup ==========================================
ocnxlCorner( "monte"
   '(
      ("model" "gpdk090.scs" ?section "\"MC_models\"")
      ("modelGroup" "")
   )
)

;====================== Test v/s corners setup =================================

;====================== Job setup ==============================================
ocnxlJobSetup( '(
	"blockemail" "1"
	"configuretimeout" "300"
	"distributionmethod" "Local"
	"lingertimeout" "300"
	"maxjobs" "2"
	"name" "ADE XL Default"
	"preemptivestart" "1"
	"reconfigureimmediately" "1"
	"runtimeout" "-1"
	"showerrorwhenretrying" "1"
	"showoutputlogerror" "0"
	"startmaxjobsimmed" "1"
	"starttimeout" "300"
	"usesameprocess" "1"
) )

;====================== Disabled items =========================================

;====================== Run Mode Options ======================================
ocnxlMonteCarloOptions( ?mcMethod "all" ?mcNumPoints "50" ?mcNumBins "" ?mcStopEarly "0" ?mcStopMethod "Significance Test" ?samplingMode "random" ?saveProcess "1" ?saveMismatch "0" ?useReference "0" ?donominal "0" ?saveAllPlots "0" ?monteCarloSeed "" ?mcStartingRunNumber "" ?dumpParamMode "yes" )

;====================== Starting Point Info ======================================

;====================== Run command ============================================
ocnxlRun( ?mode 'monteCarlo ?nominalCornerEnabled nil ?allCornersEnabled t ?allSweepsEnabled t)
ocnxlOutputSummary(?yieldSummary t ?exprSummary nil ?specSummary nil ?detailed nil)
ocnxlOpenResults()

;------------------------------------------------------------------------
; Example of using RDB API to retrieve results
;------------------------------------------------------------------------
rdb=axlReadHistoryResDB(ocnxlGetCurrentHistory() ?session ocnxlGetSession())
foreach(point rdb->points()
  printf("Point %d\n" point->id)
  foreach(corner point->corners()
    printf(" Corner %L\n" corner->name)
    foreach(test corner->tests()
      printf("  Test %L\n" test->name)
      foreach(output test->outputs()
        when(output->type=='expr
          ; take your pick
          ;printf("    Output %s = %s\n" output->name output->valueAsString())
          printf("    Output %s = %L\n" output->name output->value)
        )
      )
    )
  )
)

; If you know the output name, the test name, the corner name, and the 
; point id, you can also do:

;            OUTPUT     TEST  CORNER  POINT
;rdb->output("SlewRate" "TRAN" "monte" 5)->value

;so:
numPoints=length(rdb->points())
for(i 1 numPoints
  printf("%d: %L\n" i rdb->output("SlewRate" "TRAN" "monte" i)->value)
)

;====================== End XL Mode command ===================================
ocnxlEndXLMode()

Reply

  • Martin,

     I couldn't find it, but it looks as if it was probably the ADE XL Rapid Adoption Kit that's on Cadence Online Support. So I created the example again from scratch (just making sure the tests were called AC and TRAN, which I think the RAK suggests you do), dumping the OCEAN script, and then adding the additional lines in:

    ;====================== Set to XL mode =========================================
ocnSetXLMode()
ocnxlProjectDir( "./simulation" )
ocnxlTargetCellView( "opamp090" "full_diff_opamp" "adexl" )
ocnxlResultsLocation( "" )
ocnxlSimResultsLocation( "" )

;====================== Tests setup ============================================

;---------- Test "AC" ------------- 
ocnxlBeginTest("AC")
simulator( 'spectre )
design( "opamp090" "full_diff_opamp_AC" "schematic")
path( "./models/spectre" )
modelFile( 
    '("gpdk090.scs" "NN")
)
analysis('ac ?start "1"  ?stop "10G"  )
analysis('dc ?saveOppoint t  )
desVar(	  "gain" 10	)
desVar(	  "vcm" 1	)
desVar(	  "vdd" 2	)
envOption(
	'firstRun  t 
	'analysisOrder  list("pz" "dcmatch" "stb" "tran" "envlp" "ac" "dc" "noise" "xf" "sp" "acmatch" "pss" "pac" "pstb" "pnoise" "pxf" "psp" "qpss" "qpac" "qpnoise" "qpxf" "qpsp" "hb" "hbac" "hbnoise" "hbsp" "sens" "lf") 
)
saveOption( ?infoOptions list(list("modelParameter" "models" "rawfile" "" "" "" t) list("element" "inst" "rawfile" "" "" "" t) list("outputParameter" "output" "rawfile" "" "" "" t) list("designParamVals" "parameters" "rawfile" "" "" "" t) list("primitives" "primitives" "rawfile" "" "" "" t) list("subckts" "subckts" "rawfile" "" "" "" t) list("asserts" "assert" "rawfile" "" "" "" nil) list("extremeinfo" "all" "logfile" "" "yes" "" nil) list("<Click_To_Add>" "none" "rawfile" "" "" "" nil) ) )
save( 'i "/V0/PLUS" )
temp( 27 ) 
ocnxlOutputTerminal( "/V0/PLUS" ?save t)
ocnxlOutputExpr( "dB20(value(VF(\"/outdiff\") 1))" ?name "DCGain" ?plot t)
ocnxlOutputExpr( "abs(IDC(\"/V0/PLUS\"))" ?name "Current" ?plot t)
ocnxlOutputExpr( "abs((VDC(\"/inp\") - VDC(\"/inn\")))" ?name "InputRandomOffset" ?plot t)
ocnxlEndTest() ; "AC"

;---------- Test "TRAN" ------------- 
ocnxlBeginTest("TRAN")
simulator( 'spectre )
design( "opamp090" "full_diff_opamp_TRAN" "schematic")
path( "./models/spectre" )
modelFile( 
    '("gpdk090.scs" "NN")
)
analysis('tran ?stop "100n"  ?annotate "no"  ?save "selected"  
		?oppoint "no"  )
desVar(	  "gain" 10	)
desVar(	  "vcm" 1	)
desVar(	  "vdd" 2	)
envOption(
	'analysisOrder  list("pz" "dcmatch" "stb" "tran" "envlp" "ac" "dc" "noise" "xf" "sp" "acmatch" "pss" "pac" "pstb" "pnoise" "pxf" "psp" "qpss" "qpac" "qpnoise" "qpxf" "qpsp" "hb" "hbac" "hbnoise" "hbsp" "sens" "lf") 
)
option(	'dochecklimit  "no" 
)
saveOption( ?outputParamInfo nil )
saveOption( ?elementInfo nil )
saveOption( ?modelParamInfo nil )
saveOption( 'currents "selected" )
saveOption( 'pwr "all" )
saveOption( 'save "selected" )
save( 'v "/outdiff" "/OUTN" "/OUTP" )
temp( 27 ) 
ocnxlOutputSignal( "/outdiff" ?save t)
ocnxlOutputSignal( "/OUTN" ?save t)
ocnxlOutputSignal( "/OUTP" ?save t)
ocnxlOutputExpr( "slewRate(VT(\"/outdiff\") 0 t ymax(VT(\"/outdiff\")) t 10 90 nil \"time\")" ?name "SlewRate" ?plot t)
ocnxlOutputExpr( "(settlingTime(VT(\"/outdiff\") 0 t 1e-07 t 1) - 5e-08)" ?name "SettlingTime" ?plot t)
ocnxlEndTest() ; "TRAN"

;====================== Sweeps setup ===========================================
ocnxlSweepVar("gain" "10")
ocnxlSweepVar("vcm" "1")
ocnxlSweepVar("vdd" "2")

;====================== Model Group setup ==========================================

;====================== Corners setup ==========================================
ocnxlCorner( "monte"
   '(
      ("model" "gpdk090.scs" ?section "\"MC_models\"")
      ("modelGroup" "")
   )
)

;====================== Test v/s corners setup =================================

;====================== Job setup ==============================================
ocnxlJobSetup( '(
	"blockemail" "1"
	"configuretimeout" "300"
	"distributionmethod" "Local"
	"lingertimeout" "300"
	"maxjobs" "2"
	"name" "ADE XL Default"
	"preemptivestart" "1"
	"reconfigureimmediately" "1"
	"runtimeout" "-1"
	"showerrorwhenretrying" "1"
	"showoutputlogerror" "0"
	"startmaxjobsimmed" "1"
	"starttimeout" "300"
	"usesameprocess" "1"
) )

;====================== Disabled items =========================================

;====================== Run Mode Options ======================================
ocnxlMonteCarloOptions( ?mcMethod "all" ?mcNumPoints "50" ?mcNumBins "" ?mcStopEarly "0" ?mcStopMethod "Significance Test" ?samplingMode "random" ?saveProcess "1" ?saveMismatch "0" ?useReference "0" ?donominal "0" ?saveAllPlots "0" ?monteCarloSeed "" ?mcStartingRunNumber "" ?dumpParamMode "yes" )

;====================== Starting Point Info ======================================

;====================== Run command ============================================
ocnxlRun( ?mode 'monteCarlo ?nominalCornerEnabled nil ?allCornersEnabled t ?allSweepsEnabled t)
ocnxlOutputSummary(?yieldSummary t ?exprSummary nil ?specSummary nil ?detailed nil)
ocnxlOpenResults()

;------------------------------------------------------------------------
; Example of using RDB API to retrieve results
;------------------------------------------------------------------------
rdb=axlReadHistoryResDB(ocnxlGetCurrentHistory() ?session ocnxlGetSession())
foreach(point rdb->points()
  printf("Point %d\n" point->id)
  foreach(corner point->corners()
    printf(" Corner %L\n" corner->name)
    foreach(test corner->tests()
      printf("  Test %L\n" test->name)
      foreach(output test->outputs()
        when(output->type=='expr
          ; take your pick
          ;printf("    Output %s = %s\n" output->name output->valueAsString())
          printf("    Output %s = %L\n" output->name output->value)
        )
      )
    )
  )
)

; If you know the output name, the test name, the corner name, and the 
; point id, you can also do:

;            OUTPUT     TEST  CORNER  POINT
;rdb->output("SlewRate" "TRAN" "monte" 5)->value

;so:
numPoints=length(rdb->points())
for(i 1 numPoints
  printf("%d: %L\n" i rdb->output("SlewRate" "TRAN" "monte" i)->value)
)

;====================== End XL Mode command ===================================
ocnxlEndXLMode()

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