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Matlab is a high-level language and interactive environment for numerical computation, visualization, and programming.
- Start it on Linux: Applications - Accessories - Terminal. Then type: Matlab (Enter)
- Start it on Windows: Start - Matlab - Matlab
See the Matlab-Documentation in Matlab: Help - Product Help - Getting Started
- mcc (both: UNIX and Windows) is the MATLAB Compiler. You can use the mcc command either from the MATLAB command prompt (MATLAB mode) or the command-line (standalone mode).
- More info: See the Matlab-Documentation in Matlab: Help - Product Help - Matlab Compiler
How to use Matlab Compiler on Linux
- This chapter describes how to use MATLAB Compiler to code and build standalone applications.
- Standalone Applications executables don't need any Matlab Licences.
Magic Square Example
- A magic square is an array of integers arranged so that their sum is the same when added vertically, horizontally, or diagonally.
- Copy the following code in a text-file and save it as magicsquare.m
function m = magicsquare(n) %MAGICSQUARE generates a magic square matrix of the size % specified by the input parameter n. % Copyright 2003-2011 The MathWorks, Inc. if ischar(n) n=str2num(n); end m = magic(n); m
Important: When this programm is runned in a Linux-Terminal, we have to use the function str2num (string to number). Arguments are used as strings, thats why it has to be converted in a number.
- Start a Terminal (Applications - Accessoires - Terminal) and change to the directory where you stored magicsquare.m
- Compile the magicsqure function (with the command: mcc):
mcc -mv magicsquare.m
- This generates you 2 files: magicsquare and magicsquare.sh
- magicsquare is the main file of the application.
- magicsquare.sh is the script to start the application. It sets up the MCR (MATLAB Compiler Runtime) environment for the current $ARCH and executes the specified command.
- To run the magicsquare programm we give the shell-script 2 arguments. The first is the path to the Matlab Compiler Runtime. The second is for the programm magicsquare itself.
./run_magicsquare.sh /usr/pack/matlab-7.13r2011b-sd 5 ------------------------------------------ Setting up environment variables --- LD_LIBRARY_PATH is .:/usr/pack/matlab-7.13r2011b-sd/runtime/glnxa64:/usr/pack/matlab-7.13r2011b-sd/bin/glnxa64:/usr/pack/matlab-7.13r2011b-sd/sys/os/glnxa64:/usr/pack/matlab-7.13r2011b-sd/sys/java/jre/glnxa64/jre/lib/amd64/native_threads:/usr/pack/matlab-7.13r2011b-sd/sys/java/jre/glnxa64/jre/lib/amd64/server:/usr/pack/matlab-7.13r2011b-sd/sys/java/jre/glnxa64/jre/lib/amd64/client:/usr/pack/matlab-7.13r2011b-sd/sys/java/jre/glnxa64/jre/lib/amd64 m = 17 24 1 8 15 23 5 7 14 16 4 6 13 20 22 10 12 19 21 3 11 18 25 2 9
- Help on mcc: mcc -help or see Documentation in Matlab.
- Help on deploytool
Limited amount of licenses
The number of MATLAB licences is limited. To ensure a fair and efficient usage of the licences throughout the ETH the following measures have been put in place:
- licences will be returned if not used for 4 hours
- excessive usage of licences will be monitored and users will be asked to return licences if needed
What can you do?
- Compile your MATLAB program. The best approach to avoid excessive usage of MATLAB licences is to compile your MATLAB program. The resulting executable does not need ANY MATLAB licence! This frees you from all MATLAB licence restrictions and also allows you to provide your executable to users without a MATLAB installation.
- Exit MATLAB when finished. Only then will all used licences be given back.
- Register the need for many MATLAB licences due to a MATLAB course By registering your need in advance, we can take countermeasures and ensure that these licences are available.
- Buy your own MATLAB licences if you must have a guaranteed 24/7 service or if you need to use an excessive amount of licences.
Matlab on the cluster
- Every Matlab-Job on the Cluster uses one license. Therefore its very important, to run only compiled Matlab-Applications on the cluster.
How do I know which MATLAB licences I use?
- The MATLAB command "license('inuse')" lists the licences checked out for the current MATLAB session.