Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Please help me! BiCGstab is not stop
Posted 23 mar 2012, 02:07 GMT-4 RF & Microwave Engineering Version 4.2 1 Reply
Please login with a confirmed email address before reporting spam
when I solution emw, BiCGstab is not stop. Iteration time is more than 1400.
what's wrong with my model?
Thank you!
what's wrong with my model?
Thank you!
1 Reply Last Post 28 mar 2012, 23:44 GMT-4
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Not enough information in your brief post.
Here are some wild guesses.
You might have it meshed too coarsely, so try a finer mesh. Did you keep the mesh ~ wavelength/5 or less?
If that's not it, and if you have the memory for it, try MUMPS or PARDISO instead.
If you don't have the memory for that, try GMRES.
And if none of that works, try posting more information about your problem... so the people who read it can help you better!
Here are some wild guesses.
You might have it meshed too coarsely, so try a finer mesh. Did you keep the mesh ~ wavelength/5 or less?
If that's not it, and if you have the memory for it, try MUMPS or PARDISO instead.
If you don't have the memory for that, try GMRES.
And if none of that works, try posting more information about your problem... so the people who read it can help you better!