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Monte carlo simulation (Read 2673 times)
forghani
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Monte carlo simulation
Oct 17th, 2003, 8:09pm
 
Hello,

I have a question about the effect of circuit parameters' change in monte carlo simulation. Suppose I simulate a circuit for 100 times, and I see an unordinary situation in run 8. Then I change a transistor parameter or a currrent source value (no change in the topology). Afterthat, I run the monte carlo simulation again like the first experiment.

1. Is the randomness in both experiments the same?
2. If the randomness does not remain the same, what I can do to make the randomness the same and then run the monte carlo only for the run that had a problem after the circuit modifications, to see if I have solved the circuit problem?

Sincerely,

Pooya
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Paul
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Re: Monte carlo simulation
Reply #1 - Nov 11th, 2003, 11:52pm
 
You shall use the SEED of your simulator. If SEED is the same, the results of both simulations will be the same. I don't know for Spectre, but ELDO offers an option to set the number of the run you want to perform. I guess Spectre should offer the same possibility. Check your simulator manual.

Paul
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