Lumerical Fdtd Solutions Crack
Hedy Madrid
I am using Lumerical FDTD solutions to simulate a planewave through a region of space and some of my analysis requires me to know the relation between the simulation mesh step size and the time taken for the simulation to run.The relationship between the simulation time and mesh step size, for 2D simulations, is stated on the Lumerical website as being:$$\rm simulation\: time \sim A(\lambda/dx)^3$$where A is the region area, $\lambda$ is the wavelength of the light pulse, and dx is the mesh step size. I have only been able to find this relation in one textbook but neither in this textbook nor in the Lumerical web page does it explain how this relation is derived. Could someone help me understand where this relation came from?
After installing FDTD-Solutions, the software needs the path to the license server.For this to be done, we need to open the license manager:/cm/shared/uniol/software/FDTD_Solutions/8.20.1634/opt/lumerical/fdtd/bin/fdtd-config-license
Since version 8.22.2025 FDTD-Solutions was rebranded with the name of the software suite Lumerical
This is why fdtd-process-template.sh and fdtd-slurm-template.sh had to be modified and are to be found here:
Make sure to use FastX to connect to CHPC systems in order to be able to launch the GUI. Once the input file is generated, modify the script found in /uufs/chpc.utah.edu/sys/installdir/lumerical/scripts to run the simulation.
Finite-difference time-domain (FDTD) or Yee's method (named after the Chinese American applied mathematician Kane S. Yee, born 1934) is a numerical analysis technique used for modeling computational electrodynamics (finding approximate solutions to the associated system of differential equations). Since it is a time-domain method, FDTD solutions can cover a wide frequency range with a single simulation run, and treat nonlinear material properties in a natural way.
If you have downloaded whole Lumerical suite (e.g. filename: Lumerical-2020a-r1-d316eeda68.tar.gz), follow the instructions in sections "Installing Lumerical" and "Using the Lumerical module".If you have downloaded FDTD Solutions on it's own (e.g. filename: FDTD_Solutions-8.19.1438.tar.gz), follow the instructions in sections "Installing FDTD Solutions" and "Using the fdtd_solutions module".
The Lumerical module will look for the file $HOME/.licenses/lumerical.lic to determine how to contact the license server.Create the file with the following content, adjusting 27...@license01.example.com to the port and hostname of your license server.
The main difference between the modules fdtd_solutions and lumerical, beside the fact that the Lumerical module contains additional tools, is that the environment variable that contains the install location is named EBROOTFDTD_SOLUTIONS and EBROOTLUMERICAL respectively. This means scripts written for one module should be adjusted for the other by replacing the name of the module in the module load ... line and replacing EBROOTFDTD_SOLUTIONS with EBROOTLUMERICAL or vice versa.
The following SLURM script 'runscript_lumerical.sh' will load the necessary SW using modules and run the model using parallel (OpenMPI) version of FDTD. The script requests 2 CPU cores (as indicated by '#SBATCH -n 2', and solves the problem using 2 MPI processes (as indicated by 'mpirun -np ...'):
To be clear, the software I would like to install is FDTD solutions which is a Maxwell equation solver. From the website information, its linux version support RedHat enterprise Linux version 5&6 (x64 only), CentOS 5&6(x64 only), SUSE Enterprise 10(x64 only). Then I decide to try on OpenSUSE. Here what I have done:
To run a presumably parallel job, construct your model and task within the fdtd-solutions application and save it as an .fsp file.Then copy and customize the following job template, entering your account and file names:
Whether you are working on fiber optics or integrated photonics, -solutions/MODE Solutions has everything you need to get the most out of your waveguide and coupler designs. The Bidirectional Eigenmode expansion and varFDTD engines easily handle both large planar structures and long propagation lengths, providing accurate spatial field, modal frequency, and overlap analysis.
fdtd_mesh_accuracyallows to control the meshing accuracy of the component in Lumerical FDTD.A mesh accuracy of 1 means a coarse grid will be used and thus the computation should go more quickly.For accurate results it is recommended to use a mesh accuracy of at least 2.
With the FDTD method, it is not possible to freely assign different mesh resolutions to parts of the simulated structure. Using a finer mesh, e.g. for the grating structures, influences the mesh globally because the mesh elements have to maintain their rectangular shape. The rectangular mesh also makes it difficult to simulate sloped or curved boundaries. The FDTD solutions software provides a proprietary mesh refinement method (Lumerical Inc. 2018c) which is an extension of the Yu-Mittra method (Yu and Mittra 2001).
CRC has deployed a web-based portal with visualization capabilities for accessing our compute and storage resources. More details can be obtained here, Below is a summary of how to deploy the Lumerical launcher on viz.crc.pitt.edu. The prerequisites are (1) you are on PittNet or Pitt VPN, (2) you have an account and a compute allocation on CRC and (3) you are part of the fdtd group, indicating that you have permission to use this licensed software.
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