failure in lanczos: out of precision

I have not seen this one before. Anyone have a clue? My best guess is a memory overrun, but usually I see that with larger models. I can switch to interpolating sweep and it seems to run fine. Just wondering.


HFSSDesign1 (DrivenModal)
[error] Fast sweep setup, process hf3d error: Failure in Lanczos: out of precision.. (6:53 AM Nov 03, 2008)
[error] Simulation completed with execution error on server: Local Machine.

Please upload some model which show this error

I think it was an aspect ratio problem. I changed the 1/2 oz copper trace thickness and a coupling slot and the problem went away. I unfortunatly do not have the original model.

Hello i also faced a similar error but later on i found out that i have not correctly defined AirBox i.e actually i didn't assigned Radiation to airbox.So after assigning radiation this error was removed