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I need help to extract information about model parameters for each Monte-Carlo iteration in a Spectre simulation.
The scenario is as follows:
For now, I have circumvented the issue by adding a line just before the transient analysis:
paramInfo info what=all where=file file="MC_MODEL_PARAM" save=all
it does what I want but it has two drawbacks:
Basically, I got the problem solved, but I would be interested in knowing whether it can be done in a similar way as mismatch parameters (which results in different files for each MC iteration)
Thanks for your help!
If you use what=models it will save less information. Secondly, by using where=rawfile, it would save into the psf directory - and that way the data is organized by iteration number. It's binary, but easily processed using OCEAN functions.
In reply to Andrew Beckett:
thanks a lot for your help. I have used what=models and what=inst to relax the amount of information to be saved, as well as where=rawfile. I tinkered around with data but I'm still experiencing problems.
I would like to process the MC data into MATLAB and then stumbled upon Spectre/RF MATLAB library, which looks great. I'm able to run the cds_srr command, however I'm not getting the results expected.
The picture of my simulation structure is as follows:
`-- monteCarlo |-- MC3_separate | |-- MC3-001 | |-- MC3-002 | |-- MC3-003 | |-- MC3-004 | |-- MC3-005 | `-- MC3-006 `-- params
In the first level (.) I have the netlist *.scs files of both the testbench and the top design../montecarlo Contains the results of the simulation of the testbench. At this level I can find both latest transient analysis and parameters (inst, in this particular case): TRAN1.tran and paramInfo.info. Then, two more files appear: MC3_TRAN1.montecarlo and MC3_paramInfo.montecarlo. I guess they are the files that point to the rest of MC simulations which are in the MC3_separate subfolders. Finally, logFile (attached, as well) is the file which MATLAB reads to know which files to evaluate../params I have all the MC parameters specified in testbench file (which is attached in this post). ./MC3_separate contains all the MC runs specified. Inside the subfolder I can find both transient and paramaters information for each run.
The problem arises whenever I try to load my data in MATLAB. cds_srr(dirname) is unable to find the MC simulations, even though they appear in logFile (to whom folder I point to via dirname). I can only access to the latest transient and parameter info files: TRAN1.tran and paramInfo.info. I have noticed that changing from psfbin to sst2 exporting options makes montecarlo simulations appear when calling cds_srr. However I'm bogged down again when trying to access this simulation: it is empty.
To summarize everything up, whenever I run cds_srr I'm not able to load MC simulations.
In case you need further information do not hesitate to ask.
Thanks a lot for your help.