Mex Multithreading

Example of (Windows) multi-threading in a MEX file
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Actualizado 2 sep 2008

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Nowadays, Matlab is multi-threaded but most MEX files are still single threaded. This is an simple example of c-code for MEX file multi-threading.

The mex function "y = square(x)" is written in c-code and starts 2 worker threads. The first worker thread will square all values on the even input indexes x[0] x[2] .. x[n], and the second worker thread all odd indexes x[1] x[3] .. x[n]. Also demonstrates thread safety by using Mutex to lock percentage variable.

mex square.c -v;
y = square([1 2 3 4 5 6 7 8 9])

The function uses <windows.h> (function sleep ) and <process.h> ( function _beginthreadex ) which are included with visual studio and some other compilers.

This example is tested with Windows Vista 64 and Visual Studio 2008 compiler, and with (default) LCC compiler and Vista 32.

Citar como

Dirk-Jan Kroon (2024). Mex Multithreading (, MATLAB Central File Exchange. Recuperado .

Compatibilidad con la versión de MATLAB
Se creó con R2008a
Compatible con cualquier versión
Compatibilidad con las plataformas
Windows macOS Linux
Más información sobre MATLAB Compiler en Help Center y MATLAB Answers.

Inspiración para: max_in_place - example of multi-threaded MEX function

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Versión Publicado Notas de la versión

Now also works with the Matlab LCC compiler.