Dear MEEP developers, I'm a computer science student, working with some physicists on a project which aims to optimize the quality factor of a photonic crystal, using genetic algorithms. For that, we let the algorithm change randomly the position of holes surrounding the L3 cavity. This process, has given us some pretty high quality factor crystals. However, we run on a different Linux system setups, the output is pretty different. So, I would like to ask you which are the limitations that MEEP faces, when evaluating these kind of crystals, randomly generated. In order for you to have some real data, here, as well as the code that we are using attached in this e-mail.
Results from MEEP found on Ubuntu 12.04 - 64bit repository: harminv0:, frequency, imag. freq., Q, |amp|, amplitude, error harminv0:, 0.255640191327081, -2.7330967736586e-4, 467.674971832178, 0.00175022820200797, -8.42247765894326e-4+0.00153424817417199i, 5.37063184499769e-5 harminv0:, 0.259937235584342, -8.31920140915627e-4, 156.227276393531, 0.0067091204552275, -0.00669724190186677-3.99059131748752e-4i, 3.65852232178808e-5 harminv0:, 0.271005744953722, -5.41938008299467e-7, 250033.897607684, 0.00834031578048645, 0.00730559068463907-0.00402358199453499i, 3.17817739531161e-6 harminv0:, 0.284074719765345, -1.53941669375701e-4, 922.669998699471, 0.00101086351252287, -1.52104529464648e-5-0.00101074907027968i, 1.50869227373423e-5 harminv0:, 0.291627801574115, -3.49876705896845e-5, 4167.57955958485, 2.95026751182511e-4, 2.91324352854039e-4-4.65929753018881e-5i, 2.67151022780239e-6 harminv0:, 0.299612384847987, -4.99024308674677e-4, 300.198186380646, 0.00331281181178496, -0.00331270929773001+2.60616391482912e-5i, 6.5544925275757e-6 Results from MEEP found on Ubuntu 11.10 - 64bit repository: harminv0:, frequency, imag. freq., Q, |amp|, amplitude, error harminv0:, 0.230779896960693, -7.90071063196795e-4, 146.050088220488, 1.30538603912894e-5, -2.22597240578725e-8-1.30538414123951e-5i, 0.00149261984407578 harminv0:, 0.255934728358624, -6.17763985345817e-4, 207.14604155449, 0.00287106679735632, -0.00205204087877336+0.00200802210812653i, 3.74315980185936e-6 harminv0:, 0.25967580079761, -7.78848445111693e-4, 166.704961939271, 0.00664688607957751, -0.0064863257980583+0.00145212678383281i, 1.66962551563752e-6 harminv0:, 0.271008548944918, 2.4089251072701e-5, -5625.09287082065, 0.00810758908879346, 0.00711262454969886-0.00389147437968487i, 3.90751334814741e-7 harminv0:, 0.284016184100952, -1.48130080647462e-4, 958.671536731585, 0.00100080114703881, -8.8183434099495e-5-9.96908530339976e-4i, 2.95025610216596e-6 harminv0:, 0.292401934237098, -8.90359065335024e-5, 1642.04502217919, 2.80968070269015e-4, 2.02133512683875e-4+1.95154040595556e-4i, 2.68334288928305e-5 harminv0:, 0.299576273584903, -5.47037660067813e-4, 273.816864407257, 0.00349736245102452, -0.00349290266280785+1.76564724636717e-4i, 9.22113961322271e-7 Would you mind helping us, finding the root for this problem? To run this script, here are my command line parameters: meep-openmpi x0s=0.338555864977 y0s=0.548045491256 r0s=0.325306113099 x1s=0.243218270007 y1s=0.77913335966 r1s=0.340004772903 l3-cavity.ctl -- Fernando
l3-cavity.ctl
Description: Binary data
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