Meep installation windows

20.12.2020 By Vujora

GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Building Meep directly from the source code can be challenging for users unfamiliar with building Unix software.

This is mainly because of the numerous prerequisites that must be installed as well as the need to specify in the build scripts where these packages are to be found.

Meep's build systems uses the standard GNU Autotools. Gzipped tarballs of stable versions of the source are available on the releases pageand you can also do a git clone of the master branch of the Meep repository on Github if you have Autotools installed.

For more information, see Build From Source. To access this AMI, follow these instructions. The recommended way to install PyMeep is using the Conda package manager. The precompiled binaries run as fast or faster than the typical build from source, are simple to install, can be upgraded easily, and take advantage of newer compilers and dependencies than those available in typical systems e.

Ubuntu Obviously, building from source can still provide advantages if you have access to special hardware or performance libraries that require specific compiler flags e.

Binary packages for serial and parallel PyMeep on Linux and macOS are currently available 64 bit architectures onlyand are updated with each new Meep release. Note: the Conda packages will not work on native Windows unless you install the Ubuntu terminal app and do not include the Scheme interface which must be built from source.

The easiest way to get started is to install Minicondawhich comes with everything necessary to create Python environments with Conda. For example, to install Miniconda with Python 3 on Linux:. Next, we create a Conda environment for PyMeep to isolate it from other Python libraries that may be installed. This creates an environment called "mp" you can name this anything you like with PyMeep and all its dependencies.

Note: There is currently an issue with openblas 0.

meep installation windows

If import meep results in an "illegal instruction" error, downgrade openblas to version 0. Since the default numpy is built with MKL, installing other packages into the environment may cause conda to switch to an MKL-based numpy.

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This can cause segmentation faults when calling MPB. To work around this, you can make sure the no-mkl conda package is installed, make sure you're getting packages from the conda-forge channel they use OpenBLAS for everythingor as a last resort, run import meep before importing any other library that is linked to MKL. When installing additional packages into the meep environment, you should always try to install using the -c conda-forge flag.

Installing parallel PyMeep follows the same pattern, but the package "build string" must be specified to bring in the MPI variant:. The environment includes mpi4pyso you can run an MPI job with 4 processes like this:.

Note: If you experience crashes when using matplotlib on macOS, try importing meep before importing matplotlib. Without this workaround, you may see errors similar to this:. Note: To update, pymeepyou can do conda update -c conda-forge pymeep.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. As ofthe compilation script was reported to fail on Ubuntu On supported systems, you can simply run the 'python-meep-install. If you wish to file a bug report, it is important to record the whole output of the installation script. To this end, call it as such:. You may either attach the file to an e-mail to the author, or start a new issue on github.

Your contribution will be welcome! By editing the Settings section at the beginning of the 'python-meep-install. One can also select whether Python2 or Python3 is used, but the latter does not work. The current version of the python-meep sources fails to install with Python3 tested on Ubuntu For more details, see issue Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Sign up. Shell Branch: master. Find file. Sign in Sign up. Go back. Launching Xcode If nothing happens, download Xcode and try again.Meep is a free and open-source software package for electromagnetics simulation via the finite-difference time-domain FDTD method spanning a broad range of applications.

Meep was originally developed as part of graduate research at MIT. The project has been under continuous development for nearly 20 years. It is currently maintained by Simpetus and the developer community on GitHub.

Meep

There is a public mailing list for users to discuss issues pertaining to setting up simulations, post-processing output, installation, etc. Bug reports and new feature requests should be filed as a GitHub issue.

However, do not use issues as a general help desk if you do not understand something use the mailing list instead. Pull requests involving bug fixes, new features, and general improvements are welcome and can be made to the master branch on GitHub. This includes tweaks, revisions, and updates to this documentation, generated from markdownwhich is also part of the source repository. A video presentation and slides as well as a podcast are also available.

For a list of more than published works which have used Meep, see the Google Scholar citation page as well as that for the Meep manuscript and the subpixel smoothing reference. For examples based on technology applications, see the Simpetus projects page. To access this AMI, follow these instructions.

Simpetusa company started by Meep's developers and maintainers, provides professional consulting services for photonic design and modeling including development of turn-key simulation modules as well as training and technical support for getting up and running with Meep.

Conda packages of the latest released version are available for Linux and macOS.

MEEP for Windows (CPP)

There are also Conda packages of nightly development builds which can be used to experiment with new features. Installing Meep from the source code requires some understanding of Unix, especially to install the various dependencies. Installation shell scripts are available for Ubuntu For Windows 10, you can install the Ubuntu terminal as an app which is based on the Windows Subsystem for Linux framework and then follow the instructions for obtaining the Conda packages recommended or building from source.

Support for visualization is enabled using a browser-based Jupyter notebook which can also be installed via the Ubuntu terminal. For Windows 8 and older versions, you can use the free Unix-compatibility environment Cygwin following these instructions.

However, the Meep packages for Ubuntu The Meep package for Ubuntu is in the process of being updated and will likely appear in Ubuntu In the meantime, since the Scheme interface is no longer being supported and has been replaced by the Python interfaceyou can use the Conda packages which contain the official releases as well as nightly builds of the master branch of the source repository.

With most Linux distributions as well as Cygwin, packages like Guile are split into two parts: a guile package that just contains the libraries and executables, and a guile-dev or guile-devel package that contains the header files and other things needed to compile programs using Guile. Usually, the former is installed by default but the latter is not.

You need to install both, which means that you probably need to install guile-dev. Similarly for any other library packages needed by Meep.

There is no simple formula relating the input current amplitude J in Maxwell's equations to the resulting fields E etcetera, even at the same point as the current. This is a physical consequence of the geometry's effect on the local density of states LDOS ; it can also be thought of as feedback from reflections on the source.

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A classic example is an antenna in front of a ground plane, which radiates very different amounts of power depending on the distance between the antenna and the plane half wavelength vs. Alternatively, if you put a current source inside a perfect electric conductor, the resulting field will be zero. Also, as the frequency of the current increases, the amplitude of the resulting field will also increase.

This is due to Rayleigh scattering which explains why the sky is blue: scattered power increases with frequency; alternatively the density of states increases as the frequency to the d-1 power in d dimensions.

meep installation windows

For a leaky resonant mode where the fields are spatially confined and decaying away exponentially with time, the power expended by a dipole source at a given frequency and position is proportional to the ratio of the quality factor Q and modal volume V m.

This is known as Purcell enhancement of the LDOS: the same current source in a higher Q cavity emits more power if the coupling to the mode is the same. On the other hand, if you were to put in a dipole source with a fixed voltageinstead of a fixed currentyou would get less power out with higher Q.

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For a mathematical description, see Section 4.Meep is a free and open-source software package for electromagnetics simulation via the finite-difference time-domain FDTD method. Meep was originally developed as part of graduate research at MIT. The project is now being maintained by Simpetus and the open-source developer community on GitHub. There is a public mailing list for users to discuss issues pertaining to setting up simulations, post-processing output, installation, etc.

Bug reports and new feature requests should be filed as a GitHub issue. Simpetusa company started by Meep's developers and maintainers, provides professional consulting services for photonic design and modeling including development of turn-key simulation modules as well as training and technical support for getting up and running with Meep. Pull requests involving bug fixes, new features, and general improvements are welcome and can be made to the master branch on GitHub.

This includes tweaks, revisions, and updates to this documentation which is also part of the source repository. A video presentation and slides as well as a podcast are also available. For a list of more than published works which have used Meep, see the Google Scholar citation page as well as that for the technical reference and also the subpixel smoothing reference. To access this AMI, follow these instructions.

Conda packages of the latest released version are available for Linux and macOS. There are also Conda packages of nightly development builds which can be used to experiment with new features. Installing Meep from the source code requires some understanding of Unix, especially to install the various dependencies.

Installation shell scripts are available for Ubuntu For Windows 10, you can install the Ubuntu terminal as an app and then follow the instructions for obtaining the Conda packages or building from source. For Windows 8 and older versions, you can use the free Unix-compatibility environment Cygwin following these instructions.

These packages can be obtained via the package manager APT as described in Download. However, the current packages are for version 1. Up to date packages are being prepared. In the meantime, you can use the Conda packages which contain the official releases as well as nightly builds of the source repository.

meep 1.0.6

With most Linux distributions as well as Cygwin, packages like Guile are split into two parts: a guile package that just contains the libraries and executables, and a guile-dev or guile-devel package that contains the header files and other things needed to compile programs using Guile.

Usually, the former is installed by default but the latter is not. You need to install both, which means that you probably need to install guile-dev. Similarly for any other library packages needed by Meep.

There is no simple formula relating the input current amplitude J in Maxwell's equations to the resulting fields E etcetera, even at the same point as the current. This is a physical consequence of the geometry's effect on the local density of states; it can also be thought of as feedback from reflections on the source.

As a simple example, if you put a current source inside a perfect electric conductor, the resulting field will be zero.

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As another example, the frequency-dependence of the radiated power in vacuum is part of the reason why the sky is blue. See also Section 4.

meep installation windows

If you are worried about this, then you are probably setting up your calculation in the wrong way. Especially in linear materials, the absolute magnitude of the field is useless; the only meaningful quantities are dimensionless ratios like the fractional transmittance: the transmitted power relative to the transmitted power in some reference calculation.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I needed to use Meep for one of my simulations and am trying to figure out how to do it. I installed Meep on Cygwin platform as detailed in this website:. Learn more.

Meep installation and run on Cygwin Ask Question. Asked 4 years, 2 months ago. Active 4 years, 2 months ago. Viewed times. Active Oldest Votes. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Featured on Meta. Feedback on Q2 Community Roadmap.

Technical site integration observational experiment live on Stack Overflow. Dark Mode Beta - help us root out low-contrast and un-converted bits. Question Close Updates: Phase 1. Related 1. Hot Network Questions. Question feed. Stack Overflow works best with JavaScript enabled.The main effort in installing Meep lies in installing the various dependency packages. This requires some understanding of how to install software on Unix systems. It is also possible to install Meep on Windows systems.

For Windows 10, you can install the Ubuntu For Windows 8 and older versions, you can use the free Unix-compatibility environment Cygwin following these instructions. For those installing Meep on a supercomputer, a note of caution: most supercomputers have multiple compilers installed, and different versions of libraries compiled with different compilers.

First, let's review some important information about installing software on Unix systems, especially in regards to installing software in non-standard locations. None of these issues are specific to Meep, but they've caused a lot of confusion among users. If you don't have root privileges on your machine, you may need to install somewhere else, e. Most of the programs below use a GNU-style configure script, which means that all you would do to install there would be:.

There are two further complications. You do this by passing two variables to. Of course, substitute whatever installation directory you used. You may need to include multiple -L and -I flags separated by spaces if your machine has stuff installed in several non-standard locations.

You might also need to update your PATH so that you can run the executables; e. Second, many of the packages installed below e. Guile are installed as shared libraries. You need to make sure that your runtime linker knows where to find these shared libraries.

meep installation windows

The bad news is that every operating system does this in a slightly different way. If you installed all of your libraries in a standard location on your operating system e. Otherwise, if you compile things like libctl and install them into a "nonstandard" location e.

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There are several ways to do this. The most robust option is probably to include this path in the linker flags:. There are also some other ways. This can cause some added difficulty because of the various linking schemes used by Fortran compilers.

By default, Meep looks for a vendor Fortran compiler first f77xlfetcetera and then looks for GNU g In order to manually specify a Fortran compiler foobar you would configure it with. It is often important to be consistent about which compiler you employ. To specify a particular C compiler fooconfigure with.You seem to have CSS turned off.

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