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| matlab_on_cluster [2016/06/03 09:31] – [Managing parallel configurations] lenocil | matlab_on_cluster [2021/06/24 07:19] (current) – [Matlab on multi-processor machines] lenocil | ||
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| ====== Matlab on multi-processor machines ====== | ====== Matlab on multi-processor machines ====== | ||
| - | The aim of this short guide is to get you started with using matlab in a multi-processor environment. The goal is to instruct matlab to use a `pool' of '' | ||
| - | :!: Before trying | + | The aim of this short guide is to get you started with using matlab in a multi-processor |
| - | :!: matlab versions prior to 2007 do not have the features discussed here. | + | |matlab is available on all Lorentz Institute and Sterrewacht cluster machines.| |
| + | |Before trying to parallelize any codes, please make sure your code works as expected on one processor.| | ||
| + | |matlab versions prior to 2007 do not have the features discussed here.| | ||
| ===== Parallel Computing Toolbox aka matlabpool ===== | ===== Parallel Computing Toolbox aka matlabpool ===== | ||
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| matlabpool can be used to parallelize your m script across multiple cores in a single machine. | matlabpool can be used to parallelize your m script across multiple cores in a single machine. | ||
| - | Open matlab and initialize the parallel environment | + | Open matlab |
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| - | DataLocation : /home/lenocil/ | + | DataLocation : /home/xxxxx/ |
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| In matlab2010 the max number of workers is set to 8 where as that limit ip brought to 12 in matlab R2011b. | In matlab2010 the max number of workers is set to 8 where as that limit ip brought to 12 in matlab R2011b. | ||
| - | If you wanted to use 64 workers (for instance on one of the maris nodes), you will need a 64-node MDCS licence | + | If you wanted to use 64 workers (for instance on one of the maris nodes), you will need a 64-node MDCS licence ((Leiden University has an unlimited access license for everybody, see https:// |
| - | (you can buy it through our procurement office) and you will also need to create a `scheduler' | + | and you will also need to create a `scheduler' |
| To modify the local configuration | To modify the local configuration | ||