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Error running Monte Carlo in ADE Explorer with MDL Control File

Johanny Saenz

Hi all

I'm simulating a trimming sequence in ADE Explorer using a MDL control file. It is woking fine for corner simulation but once I run it for Monte Carlo validation, it gives me the following error:

ERROR (EXPLORER-5069): Cannot complete the Monte Carlo simulation because of the following error for the test
 ------------------------------
 The Monte Carlo analysis information is missing from the Spectre output log. Contact Cadence Customer Support to help you generate the debugging information and troubleshoot the issue.
 
 ------------------------------
Valid data not found for "trimed_word", check expression and/or filter settings.
Valid data not found for "vref_final", check expression and/or filter settings.
ERROR (WIA-1175): Cannot plot waveform signals because no waveform data is available for plotting.
One of the possible reasons can be that 'Save' check box for these signals are not selected in the Outputs Setup pane. Ensure that these check boxes are selected before you run the simulation.
ERROR (VIVA-9000):No image saved: Possible reasons could be that none of the windows
or subwindows are visible or are non-empty.

I'm saving all plot families and process parameters. I'm just curious if MDL control file configuration actually works for Monte Carlo in ADE or it have to be configured in the MDL view.

Thanks

  • You can't really use MDL together with other analyses in ADE. You either run all the analyses from the MDL file, or you run all the analyses from ADE - you can't mix them - there are two different flows. So you'd have to set up the Monte Carlo within MDL, but even then ADE wouldn't (I think) be able to visualise the results as it wouldn't know that you ran Monte Carlo. When the MDL Control support was added in ADE a number of years ago, we debated whether to add it because it had these limitations (which were unlikely to be easily solvable).

    Using MDL within ADE has to be used with caution (i.e. with those limitations) because ADE doesn't really know about MDL.

    As far as I know you can use calcVal with Explorer, but it has to be from the same test so that's probably not what you want. Similarly there is this thing called "pre-run scripts" but that's in ADE Assembler (could be with a single test in Assembler) and that's a flow used for trimming commonly.

    Andrew.

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