On Tue, Oct 31, 2006 at 05:38:53PM +0000, Dr Chris Stevens wrote: > Dear all, > am still playing with this complex dielectric issue. I am running > two ctl files listed below. The first, sea_fake.ctl runs in about 75s > having only real dielectrics ie water with zero conductiivty. The second > which simulates the same situation but with complex dielectric set by > using a seawater conductivitty of 4S/m takes over 200000s to run! > I'm using meep which responds to the meep -V command with: > > Meep 0.10, Copyright (C) 2005 Massachusetts Insitute of Technology. > Using libctl 3.0.2 and Guile 1.6.7. > > > Why is there this huge difference ? I've tried asking for complex fields > which doesn't make much difference in either case. I'm running for 30000 > as I'm using rather low frequeencies but comapred to their free space > wavelengths also rather small volumes.
I haven't actually looked at your inputs, but have you checked whether you are getting NaNs or infinities with the sea water? NaNs slow everything down dramatically. -- David Roundy Dept. of Physics Oregon State University _______________________________________________ meep-discuss mailing list [email protected] http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
