Lumerical has an
adaptive grid feature.
Cheers,
Georg
Georg Wachter
Institute for Theoretical Physics
Vienna University of Technology
Wiedner Hauptstr. 8-10, 1040 Vienna, Austria, EU
On Wed, Nov 26
Hello,
When you have almost no fields and propagate for a very long time I would
not think that it is surprising that numerical errors accumulate. (What
you're seeing is the interaction between periodic images of your sphere,
amplified by numerical errors.)
Why would you want to simulate for
.
(At least, it should give a better error message.)
Best regards,
Georg Wachter
__
DI Georg Wachter
Institute for Theoretical Physics
Vienna University of Technology
Wiedner Hauptstr. 8-10, A-1040 Austria
phone: +43-(0)1-58801-13630
fax: +43-(0)1-58801-13699
Hello,
Have you tried:
reflection = fft(R-R0)/fft(R0) replace T0 by R0
transmission = fft(T)/fft(R0) here too - phase independent of
propagation of reference in silica
Furthermore, if I understood you correctly, you want to see the difference
between (metal + glass) to
Hello,
MPI requires an overhead (of passing data between the processors, etc.). For
short simulations you might not gain (wallclock) time at all, or even lose
some.
Try a long / large simulation and see if it has any effect.
Good luck and regards,
Georg
On Thu, Sep 22, 2011 at 3:17 PM, Mehdi
Hello,
I head the same error on occasion. You are probably trying to generate a
grid of more than ~2e9 mesh points (the maximum of integer). This appears to
be currently impossible.
I'm afraid the only thing you can do is reduce the grid size or look for the
relevant part of the source code.
for reading.
Stephen.
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DI Georg Wachter
Institute for Theoretical Physics
Vienna
Hello,
I would also be interested in something like this.
Basically, it requires the possibility for an arbitrary time and space
dependent modification of the polarization fields, right?
Maybe an interface to another software could be implemented via the python
interface, python-meep? How would
Hello,
You could check out
http://refractiveindex.info/?group=CRYSTALSmaterial=GaN
They have a lot of materials. Unfortunately they don't seem to have a table
(and k) for this particular material, but I suspect if you follow the
references you will find something.
Make sure to post your
, Georg Wachter georgwach...@gmail.comwrote:
Hello,
I use the following code snippet to generate a Gaussian (spatial) + sin**2
(time) source, also taken from this list and adapted. It's pretty
self-explanatory, maybe you find it useful. It generates a (focus of a)
gaussian beam of width 1 in +y
Hello,
I use the following code snippet to generate a Gaussian (spatial) + sin**2
(time) source, also taken from this list and adapted. It's pretty
self-explanatory, maybe you find it useful. It generates a (focus of a)
gaussian beam of width 1 in +y direction.
Regards,
Georg
;
Hello,
Note that in your command
$ h5topng -t 0:329 -R -Zc dkbluered -a yarg -A eps-00.00.h5 ez.h5
you are giving a t-range 0:329 .
I suppose you have changed this for the longer simulation?
Georg
On Fri, Jan 21, 2011 at 11:20 AM, Stefan Kapser stefan.kap...@ph.tum.dewrote:
Dear meep
, gpipc gp...@cup.uni-muenchen.de wrote:
On Wed, 29 Dec 2010 01:36:54 +0100, Georg Wachter georgwach...@gmail.com
wrote:
PS.: I would really like to see a possibility for having regions of
different resolution in meep. This is The One Feature (for me) that
commercial competitors have over
Hello,
Is there a way to output the (x,y,z) coordinates of the mesh points (in a
volume) used by meep?
(I want to assess the influence of the interpolation scheme for the field
close to my numerical surface. Meep always does linear interpolation,
right?)
Thank you and best regards,
Georg
Thank you everyone for the encouraging remarks. Since it might save someone
time in the future I will write down the solution. (This mailing list has
really been a great help in becoming acquainted with Meep - thanks guys!)
It turned out to be a combination of several things I hadn't understood:
Hello,
For the simulation of small metal structures with meep, I unfortunately need
a ridiculously high resolution, leading to a lot of points in my simulation
box (around 2.2e9). On trying to run a 512-core job, I ran into a strange
error:
meep_highres.e489139:meep: Cannot split -2080123546
,
Georg Wachter
Institute for Theoretical Physics
Vienna University of Technology
Wiedner Hauptstr. 8-10, A-1040 AUSTRIA
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