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Parametric sweep - initial guess
Posted 7 mar 2011, 08:23 GMT-5 2 Replies
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Hello,
I have an AC/DC model where I want to see the state for different positions of a magnet (I'm using Comsol 4.1).
I can simulate with no problem all these different positions alone.
I made a parametric sweep to be able to plot some results depending on the magnet's position.
However in the sweep, the solver cannot converge for the second value.
I think it comes from the inital values, as in the sweep it takes the solutions from the previous results as initial guess.
Is it possible to force it to take the same initial values for each parameter step ? (I couldn't find in the documentation).
Or can I make this differently ?
Thanks !
Patrick
I have an AC/DC model where I want to see the state for different positions of a magnet (I'm using Comsol 4.1).
I can simulate with no problem all these different positions alone.
I made a parametric sweep to be able to plot some results depending on the magnet's position.
However in the sweep, the solver cannot converge for the second value.
I think it comes from the inital values, as in the sweep it takes the solutions from the previous results as initial guess.
Is it possible to force it to take the same initial values for each parameter step ? (I couldn't find in the documentation).
Or can I make this differently ?
Thanks !
Patrick
2 Replies Last Post 7 mar 2011, 10:08 GMT-5
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Posted:
1 decade ago
Hi
If you use an "external" parametric sweep it restarts normally from the initial position (default zero) , if you use a solver "Extension Continuation" sweep it will normally start from previous step
At least that is what I have understood
--
Good luck
Ivar
If you use an "external" parametric sweep it restarts normally from the initial position (default zero) , if you use a solver "Extension Continuation" sweep it will normally start from previous step
At least that is what I have understood
--
Good luck
Ivar
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Posted:
1 decade ago
Thanks for the reply.
As it doesn't work with both, then the problem must be something else :-/
I'll keep testing...
As it doesn't work with both, then the problem must be something else :-/
I'll keep testing...