How to run matlab on a cluster with Ubuntu
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Hello, I am very new and I have to find a solution for tomorrow :o(...
I have 8 Ubuntu nodes. I create a share folder name /scratch. The /scratch folder is avaiable on all nodes.
I create a matlab script on my mac. The script resize high reslution image from a folder (named source)and move the resized images to another folder name target. The script works fine.
Then I scp the source and target folders and the resize_img.m script to /scratch/pierre/exercise/ of my first node. Matlab is installed in all of my node. Then I ssh my node and I cd to /scratch/pierre/exercise/. From there I run the following command
matlab -nodisplay -r redim_img
< M A T L A B (R) >
Copyright 1984-2016 The MathWorks, Inc.
R2016b (9.1.0.441655) 64-bit (glnxa64)
September 7, 2016
To get started, type one of these: helpwin, helpdesk, or demo.
For product information, visit www.mathworks.com.
Starting resizing High resolution images ...
Resizing BlueMarble.jpg
Resizing DSC00004.jpg
Resizing DSC00013.jpg
Resizing DSC00014.jpg
Resizing IMAG0063.jpg
Resizing IMAG0064.jpg
Resizing IMAG0065.jpg
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Resizing IMAG0070.jpg
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Resizing IMAG0072.jpg
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Resizing IMAG0074.jpg
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Resizing IMAG0077.jpg
Resizing IMG_0251.jpg
Resizing IMG_0252.jpg
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Resizing IMG_0257.jpg
Resizing IMG_0259.jpg
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Resizing IMG_0263.jpg
Resizing IMG_0264.jpg
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Resizing PICT0417.jpg
Resizing PICT0418.jpg
Resizing PICT0421.jpg
Resizing paysage.jpg
Complete => Elapsed time: 11.5222ms
That fine, but now I would like to run the script to all of my nodes to see how long does take the script to resize the images with 1,2,4,6 nodes.
I am a novice and I absoluetly have no idea how to run my script in parallel computing.
Which command should I use to run the split the script on all nodes? Some one fo you can give a way to do my experience? Should I configure my node with a plugin?
FYI: OpenMPI is installed and I can use OpenMPI to run C++ script on all the nodes
many thank for your help
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Answers (1)
Sangeetha Jayaprakash
on 24 Jul 2017
In order to run MATLAB scripts in parallel you might need:
1. a Parallel Computing toolbox license - if its a desktop with 8 nodes or
2. MATLAB Distributed Computing Server license - if its a cluster
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