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Simulators >> Circuit Simulators >> how to solve convergence problem in spectre's transient analysis ?
https://designers-guide.org/forum/YaBB.pl?num=1277454029

Message started by larry on Jun 25^th, 2010, 1:20am

Title: how to solve convergence problem in spectre's transient analysis ?
Post by larry on Jun 25^th, 2010, 1:20am

Hello, I am a rookie in spectre...
When I run the transient analysis, it shows.:

Warning from spectre at time = 45.361914483 ns during transient analysis
`transient1', during task `MDLControl'.
WARNING (SPECTRE-16266): Convergence difficulties resulted in error
requirements being unsatisfied.
Further occurrences of this warning will be suppressed.

How should I solve this issue ?
Thank you,,

Title: Re: how to solve convergence problem in spectre's transient analysis ?
Post by Geoffrey_Coram on Jun 28^th, 2010, 4:27am

1) fix your circuit
2) fix your models
3) fix your tolerances

Pick one. It's hard for us to guess which one is more likely from what you wrote.

Title: Re: how to solve convergence problem in spectre's transient analysis ?
Post by vivkr on Jun 28^th, 2010, 5:09am

In addition to the points Geoffrey made, you could also try to use the 64-bit version of Spectre. Simply select the option under Setup -> Environment in ADE.

Vivek