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Different result with vmanager and standalone simulation, with same seed

Hi,

I am running standalone simulations with xcelium, and I have siimulation passing. When I run it in regression, simulation fails due to errors in the checkers, that I have implemented. Checkers are simple, only checking voltage levels at point of time, or calculating slew.

When I use the same seed from regression and run it standalone, simulation passes. Results in SimVision, when, observed look ok.

Types of errors are for example too much difference between expected and measured voltages.

I did check vsif file several times, and I don't see any difference between vsif and standalone setup. Only difference is seed, but as I said, even with same seed, I get pass in standalone.

Sorry, if my terminology is off, hope you will understand the issue.

Did anyone, have this kind of issue, adn can you point me what to check, or where to look? Thank you.

Best regards,

Djordje

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angelacoffey over 3 years ago

I am aware that the items I pull from the test and testbench need to be corrected. Every time I perform a regression, I am aware that the seed is different. However, when I locate that log seed in vmanager and use it in a standalone sim, I am able to pass the stand alone sim while it is failing in vmanager words from letters
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angelacoffey over 3 years ago

I am aware that the items I pull from the test and testbench need to be corrected. Every time I perform a regression, I am aware that the seed is different. However, when I locate that log seed in vmanager and use it in a standalone sim, I am able to pass the stand alone sim while it is failing in vmanager words from letters
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