Requirements
I would like to use CPLEX as a java library. However, I do not find the download site for this purpose. The google search gives a site of AIMMS, which is just GUI for the tool, if I understand correctly. My OS is Mac OS X, so I cannot use AIMMS's academic license. It suffices for me the cplex.jar. But I do not see where it is.
- IBM ILOG CPLEX¶ Download the CPLEX installation binary. The limited community edition is here. CPLEX is free for students (and academics) and further information how to register and download is here. Add execute permission to binary $.
- Welcome to the Gurobi TM Optimizer Quick Start Guide for Mac OS users! This document provides a basic introduction to the Gurobi Optimizer, including: Information on Obtaining a Gurobi License.; A Software Installation Guide, which includes information on Retrieving and Setting Up your License.; An example of how to create a simple optimization model and solve it with the Gurobi Command Line,.
ilastik binaries are provided for Windows, Linux, and Mac at our download page.
Note: ilastik requires a 64-bit machine. We do not provide 32-bit binaries.
We recommend using ilastik only on systems with at least 8 GB of RAM.For using the Autocontext Workflow —our most memory-intensive workflow— on large 3D data your system should have at least 32 GB of RAM for smooth interaction.
On Mac, Linux, and Windows learning the weights in the Tracking with Learning Workflow requires a commercial solver (CPLEX or Gurobi).In order to enable this the Tracking with Leaning Workflow, please follow the instructions in the section about commercial solver installation.
Basic Installation
Installation on Windows
Download the Windows self-extracting installer and run it.The installer will guide you through the installation process.You can find an entry for ilastik in the start menu and click it to launch the program.
Installation on Mac
Download the
.tar.bz2
file for your version of OSX and extract its contents with a simple double-click.Copy ilastik.app to the folder of your choice (usually your Applications
folder), Control-click the app icon and choose “Open” to begin (for more info, see https://support.apple.com/guide/mac-help/open-a-mac-app-from-an-unidentified-developer-mh40616/mac).Installation on Linux
Download the Linux
.tar.bz2
bundle and extract its contents from the terminal:To run ilastik, use the included
run_ilastik.sh
script:Controlling CPU and RAM resources
By default, ilastik will use all available CPU cores (as detected by Python’s “multiprocessing” module), including “virtual” cores if your CPU supports hyperthreading (like most modern Intel processors).
If you want to explicitly specify the number of parallel threads ilastik should use, you can do so either by
- setting special environment variables, or
- creating a configuration file for ilastik.
Using environment variables to control resources
ilastik will check for two environment variables on startup that control resource usage:
LAZYFLOW_THREADS
, and LAZYFLOW_TOTAL_RAM_MB
.Note, these environment variables overrule any settings made in a config file (see below).On linux and OSX you can specify the environment variables when starting ilastik from the command line:
There’s an additional environment variable for specifying how much RAM to use during headless execution:
The RAM limit is not perfectly respected in all cases, so you may want to leave some buffer if your RAM budget is strict.
Using a configuration file to control resources
ilastik will check on each startup whether it can find its configuration file
.ilastikrc
in the home folder.In order to control RAM and CPU resources, use a text-editor to create the file atC:Users<YourUserName>.ilastikrc
on windows,/Users/<YourUserName>/.ilastikrc
on OSX, and/home/<YourUserName>/.ilastikrc
on linux.
In order to limit ilastik to use
4000
megabytes of RAM and 4
threads, the file should have the following content:Commercial Solver Installation
In order to learn the tracking parameters in the Tracking With Learning Workflow, installation of a commercial solver is required.IBM CPLEX is supported by ilastik on all platforms.Alternatively, GUROBI can be used on Linux and Mac.
CPLEX Installation and Setup
Application for Academic License at IBM
IBM CPLEX is a commercial solver which is free for academic use.Details on the application for an academic license, may be found onthe IBM Academic Initiative website.Please note that it might take some days until the application gets approved by IBM.
Download IBM CPLEX
Once the license has been approved by IBM, instructions for download will be provided.
The current version of ilastik works withIBM ILOG CPLEX Optimization Studio V12.9.After choosing the appropriate platform, you have to agree with the IBM license.Finally, CPLEX may be downloaded and is ready to install.
Important note: It is not sufficient to download the Trial version of CPLEX since its solver can only handlevery small problem sizes. Please make sure, the correct version is downloaded as described here.
The following sections contain platform-specific instructions for CPLEX installation on Windows as well as on Linux and Mac.
Setup on Windows
Run the installer by double clicking the executable that you’ve downloaded.
On Windows, there are typically no further modifications needed after installing CPLEX.After a successful installation, learning the weights in the Tracking with Learning Workflow will be enabled.If it isn’t, something went wrong with the CPLEX installation.To track down the problem, proceed like this:
- Make sure that the environment variable
CPLEX_STUDIO_DIR129
is set and points to the proper location.You can check this by typingecho %CPLEX_STUDIO_DIR129%
at the DOS command prompt.The output should be something likeC:Program FilesIBMILOGCPLEX_Studio129
. - Make sure that
cplex
is in the PATH.Typewhere cplex
at a DOS prompt.It should produce something likeC:Program FilesibmILOGCPLEX_Studio129cplexbinx64_win64cplex.exe
(the path prefix should match the contents of theCPLEX_STUDIO_DIR129
variable). - Make sure that the directory containing
cplex.exe
also containscplex129.dll
,ILOG.CPLEX.dll
, andILOG.Concert.dll
.
Learning the weights in the Tracking with Learning Workflow should now be enabled.If it isn’t, you may copy the files
cplex129.dll
, ILOG.CPLEX.dll
, and ILOG.Concert.dll
(if you can locate them somewhere) to the binary folder of the ilastik installation, usually located at C:Program Filesilastikbin
.If it still doesn’t work, please contact us.Setup on Linux and Mac
On Linux and Mac, the CPLEX installer comes as a commandline executable (
cplex-someversion.sh
on Linux and cplex-someversion.bin
on Mac).To install it, open a terminal and run bash /path/to/your/cplex-someversion.sh
(or bash /path/to/your/cplex-someversion.bin
on Mac).Hint: on Mac and most Linux distributions you can drag and drop the installer file into the terminal to get the full path appended to your command line.
CPLEX packages for Linux and Mac do not provide shared versions of all required libraries, but only static variants.In order to enable CPLEX with ilastik, the static libraries have to be converted.Before you can convert your static CPLEX libraries into shared library versions, you need to have a compiler installed on your machine.You can check whether you already have a compiler installed by running the following command in a terminal (open the Terminal app!).
If no compiler is installed, choose what to do depending on your OS version:
- For Linux, use your OS package manager (e.g.
apt-get
) to install thegcc
package. - For all OSX < 10.9, so up to Mountain Lion, you need to install XCode from the AppStore.Then you need to go to XCode’s Preferences, to the Downloads tab, and install the command line tools.
- For OSX 10.9 Mavericks it suffices to install the command line tools using the following command without installing XCode.Then you need to accept the XCode licence by running “sudo gcc” once.
Now you can run a script, that will convert your CPLEX static libraries into shared libraries, and install them into the appropriate directory of your ilastik directory.Starting with ilastik-1.1.7, this script can be found in ilastik-1.*.*/ilastik-meta/ilastik/scripts.Prior to that version the script needs to be downloaded manually in the terminal:
Navigate to the directory containing the script and execute it:
In the command above,
/path/to/your/cplex-root-dir
is the location of your cplex studio installation. It should contain directories named concert
and cplex
, among others.Note: The above script installs CPLEX directly into your ilastik installation.Once you’ve done that, you should not distribute your copy of ilastik to others, unless you have a license to distribute CPLEX.
After a successful installation, learning the weights in the Tracking with Learning Workflow will be enabled.
GUROBI Installation and Setup
On Linux and Mac, a second commercial solver, GUROBI, is supported.As with CPLEX, a free academic license can be obtained for GUROBI.
Application for Academic License at GUROBI
Application for an academic license is available after registration with your institution email address at the GUROBI website.Details can be found here.The easiest way is to obtain a free named-user academic license.Instructions are provided on this page.At the end of the process, you will be provided with your license key.You will need the license key to activate your GUROBI installation.
Installation
Download the appropriate package from the GUROBI download page.Unpack the downloaded archive:
And activate your installation by invoking
grbgetkey
with your license:In the next step you have to execute a script that will link your GUROBI libraries to your ilastik installation.The script can be found in
your-ilastik-installation-folder/ilastik-meta/ilastik/scripts
.With versions prior to ilastik-1.1.7, this script is not included and has to be downloaded manually:Navigate to the script directory and run it:
In order to run ilastik with GUROBI support, make sure to always set the path to the license file (in case of a non-standard location):
After a successful installation, learning the weights in the Tracking with Learning Workflow will be enabled.
Should you run into any problems, please contact us.
AMPL has been used by thousands of students to learn about optimization and to apply optimization in class projects. If your are a student looking to use AMPL, you can consider a range of options:
- Download the free size-limited AMPL Demo Version.
- Run AMPL free in the cloud on the NEOS Server.
- Ask your professor to request the free AMPL for Courses.
- Buy AMPL and solvers at highly discounted prices.
- Request a free 30-day student Trial License.
- Graduating soon? Request AMPL for New Graduates to take AMPL with you.
We describe below the main characteristics and advantages of each of these alternatives, with links to further information. For the 30-day trial, a special student-use form appears at the end of the page.
Whatever option you choose, be sure to consult the AMPL book for a full tutorial introduction to all of AMPL’s features.
Free Demo Version Downloads
You can download a free version of AMPL and all of our popular solvers. This version is limited to 500 variables and constraints for linear problems (300 for nonlinear problems, and fewer for certain solvers), but it offers a way to get started fast. It’s particularly convenient for trying out some of the examples in the AMPL book.
See our Download a Free Demo page for further instructions.
Free Runs on the NEOS Server
You can send AMPL model and data files to be run free using the facilities of the NEOS Server project. NEOS provides a variety of solvers offering AMPL interfaces. Submissions through the NEOS website are particularly attractive to students, as they do not require any software installation (for either AMPL or solvers) on your own computer.
See our Run AMPL on NEOS page for a more detailed description, or go directly to the NEOS Server homepage.
Free AMPL for Courses
The AMPL for Courses program makes full-featured AMPL + solver packages available to all students in a listed course at a university or other academic institution. If you’re taking a course that is registered for this program, you may install the software on any computer that you use for the course, following short and simple instructions. There is no limitation on problem size, but the software will stop working when the course ends.
AMPL for Courses cannot be requested by individual students. The professor, lecturer, or instructor responsible for the course must make the request. Master copies of the AMPL + solver bundles are provided for download by the instructor or by another responsible person whom the instructor designates; then that person arranges to distribute the bundles to the course’s students.
We encourage you to suggest AMPL for Courses to the person who is teaching your course. Details and an online request form are provided on our AMPL for Courses page.
Buy Discounted AMPL and Solvers
Academic licenses for AMPL and many high-quality solvers can be purchased directly from us. Prices for non-commercial use at degree-awarding academic institutions are only 10% of the regular commercial prices. AMPL and solver licensing use can be tied to a particular computer, or can “float” to any computer on a network.
Purchased licenses are the best option for long-term academic research projects and for departmental computing facilities. There is no limitation on problem size, and the license does not expire on the computer where it is installed. After the first year, an additional maintenance & support fee covers access to new software versions and regeneration of license files for repaired or replaced computers. Also free 1-year licenses for several popular solvers are renewed as long as maintenance is current.
See our Buy AMPL Products page for a complete academic price list, ordering instructions, and optional online order form.
Free 30-day Trial Licenses
Students can request a free trial licence for AMPL and the solvers that we sell. This alternative requires a licensing procedure similar to that for purchased licenses. The trial license works on one specified computer, and is good for 30 days beginning with the date of issue.
Trial licenses are intended to provide for evaluation of AMPL and solvers prior to recommending them for purchase or for use through the AMPL for Courses program. They can also be used for very short-term class projects, but only one trial license per year is available to any one student or for use on any one computer.
To request a trial license for student use, first set up an AMPL size-limited demo version package by following the directions on our Download a Free Demo page. Then return here, and follow the directions in the form below to get a license file that will upgrade your demo to a 30-day trial with no problem-size limitations.
Free AMPL for New Graduates
Are you a recent graduate with optimization experience? Then you are entitled to use AMPL and 9 solvers, free and fully-featured, for a year.
You are welcome to use these commercially and for research. We believe you will build great things! See our AMPL for New Graduates page for details.
30-Day Free Student Trial Request Form
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