Hi, Gib, I am pleased your problem was resolved. The frequency-domain solver should give the same results as the time-domain solver (with Fourier transform). I wrote an example script which does exactly such comparison for a metamaterial cell:
https://github.com/FilipDominec/python-meep-utils, look for 'example_frequency_domain_solver' The examples are written using python-meep, as I need tight integration with numerical processing which I was not able to do in scheme. Filip 2015-03-19 5:25 GMT+01:00, Gib Bogle <g.bo...@auckland.ac.nz>: > Hi Filip, > > The Meep code has been updated on the cluster, and now the program does not > crash at that point. It obviously is a memory hog, though, and I am still > discovering how much it needs to avoid running out. > > On a different but connected topic: I would like to set up a cluster run > that solves multiple cases, e.g. varying the frequency. It would be great > if you could point me to an example .ctl file that executes multiple > simulations, creating file names appropriately. > > Thanks > Gib > ________________________________________ > From: Filip Dominec [filip.domi...@gmail.com] > Sent: Thursday, 19 March 2015 12:16 p.m. > To: Gib Bogle > Cc: meep-discuss > Subject: Re: [Meep-discuss] Frequency-domain solver > > Exactly, this is the trunk repository with the most fresh code. > F. D. > > 2015-03-19 0:11 GMT+01:00, Gib Bogle <g.bo...@auckland.ac.nz>: >> I don't think you were confused, but I'm wondering where I should get the >> fixed code from. >> Is this it? git clone https://github.com/stevengj/meep >> >> Gib >> ________________________________________ >> From: Filip Dominec [filip.domi...@gmail.com] >> Sent: Thursday, 19 March 2015 12:05 p.m. >> To: Gib Bogle >> Cc: meep-discuss >> Subject: Re: [Meep-discuss] Frequency-domain solver >> >> Hi, Gib, perhaps I was a bit confused. The fact is that MEEP source >> has been fixed by the commit I mentioned, and it was not before April >> 2014. Therefore if the release 1.2.1 comes from March, it is probably >> not fixed (no matter it is currently the latest official release I am >> aware of). >> >> I guess you need to recompile, then. I would be thankful for the >> procedure that finally works for you, too. >> >> Regards, >> Filip >> >> 2015-03-18 23:46 GMT+01:00, Gib Bogle <g.bo...@auckland.ac.nz>: >>> Hi Filip, >>> >>> I see that the version I have built (with Cygwin on Windows) has source >>> code >>> dated 29/3/2014. I downloaded meep-1.2.1.tar.gz from >>> http://ab-initio.mit.edu/wiki/index.php/Meep_download in January this >>> year. >>> This claims to be the latest release - is this not the case? >>> >>> Cheers >>> Gib >>> ________________________________________ >>> From: Filip Dominec [filip.domi...@gmail.com] >>> Sent: Thursday, 19 March 2015 11:26 a.m. >>> To: Gib Bogle >>> Cc: meep-discuss >>> Subject: Re: [Meep-discuss] Frequency-domain solver >>> >>> Hi, Gib, it looks exactly like the bug that has been resolved in git >>> commit >>> https://github.com/stevengj/meep/commit/0640e9f6a2ccfa2a40375a89b5692ebb1fb87efb >>> >>> Could you check a recent version of MEEP either compiling it from >>> source (blue box in http://f.dominec.eu/meep/index.html#install), or >>> installing e.g. from Ubuntu 14.10 repository, where, as far as I know, >>> it has been updated? >>> >>> Filip >>> >>> 2015-03-18 22:01 GMT+01:00, Gib Bogle <g.bo...@auckland.ac.nz>: >>>> I am trying to use the frequency-domain solver for a 3D problem, >>>> 25x25x22 >>>> with resolution=10. The output from >>>> (meep-fields-solve-cw fields) >>>> is: >>>> Meep: using complex fields. >>>> on time step 1 (time=0.05), 41.9989 s/step >>>> final residual = 0 >>>> Finished solve_cw after 1 steps and 0 CG iters. >>>> >>>> It seems that nothing is done, taking 42 sec. I think that the way to >>>> see >>>> the waveform at a point is: >>>> (run-until 10 >>>> (to-appended "ex" >>>> (at-every 0.05 >>>> (in-point sample_point output-efield-x) >>>> ) >>>> ) >>>> ) >>>> >>>> and this gives the same result - i.e. the solution starting from 0 - as >>>> if >>>> I >>>> had not previously invoked meep-fields-solve-cw. >>>> >>>> I have seen other posts on the mailing list on this subject, but I have >>>> not >>>> been able to find any resolution. It would be very helpful to have an >>>> explanation of this apparent problem. Does the frequency-domain solver >>>> work? >>>> >>>> Thanks >>>> Gib >>>> >>>> >>>> >>> >> > _______________________________________________ meep-discuss mailing list meep-discuss@ab-initio.mit.edu http://ab-initio.mit.edu/cgi-bin/mailman/listinfo/meep-discuss
