Global variable sweep in Monte carlo analysis

Which version of the tools are you using? Which tool are you using, in fact? The guidelines ask you to provide this kind of information for a reason...

I'm guessing you're using ADE XL, because ADE Assembler supports this. If you really have to use the older ADE XL tool, you can put the variable sweep in the corner definitions and sweep that way.

Regards,

Andrew.

Dear Mr. Beckett

Thank you for pointing it out. I managed running parametric sweep in Monte Carlo analysis. However, regarding defining the variable that is being swept, for example, x from 1.9 to 2.2 with step size of 0.5.

Instead of using Inclusion list and typing all values one by one, separated by space; it seems that From/To list will not be incorporated correctly.

Below is the error message when I try to use {From/To}Linear:1.9:0.5:2.2{From/To} in the variable definition. {From/To}Linear:1.9:0.5:2.2{From/To} is created by adding the From/To linear specification in the parameterize table.

ERROR (ASSEMBLER-5069): Cannot complete the Monte Carlo simulation because of the following error for the test

------------------------------

Spectre simulator stopped due to following reasons:

Error found by spectre during circuit read-in.

Error found by spectre during circuit read-in.

ERROR (SFE-874): "input.scs" 9: 15: Unexpected block statement "{". Cannot run the simulation because of syntax error. Correct the error and rerun the

simulation.

ERROR (SFE-683): "input.scs" 9: Badly formed parameters statement.

I am wondering do you have any comment/suggestion on this?

Thank you very much

Ren

This is nothing to do with the monte carlo being involved in the sweep. It's because your sweep definition is invalid. You've asked to sweep from 1.9 to 2.2 with a step of 0.5. There is only 0.3 between 1.9 and 2.2, so a step size of 0.5 is too large.

What should be happening is that ADE should complain about the invalid sweep, but it doesn't in this case (I'll file a change request to correct that, because it doesn't seem to have come up before). Other invalid sweep setups do get flagged.

If you pick a smaller step size (i.e. one smaller than the interval between the From and the To ) it should work - assuming you're not using a very old IC617 version. You didn't mention which version you're using.

Andrew.

I filed CCR 2298625  to get the invalid sweep handled properly (if you'd have just put 1.9:0.5:2.2 without the from/to stuff around it, it would have simply simulated the first point) or to flag an error appropriately.

Andrew.

Dear Mr. Beckett

Thank you for filing the change request. And you are absolutely right, that was my negligence, and with step size as 0.05, it worked without a problem.

Thanks a lot for pointing it out

Best regards

Ren

Dear Mr. Beckett

Thank you for filing the change request. And you are absolutely right, that was my negligence, and with step size as 0.05, it worked without a problem.

Thanks a lot for pointing it out

Best regards

Ren