#How to run a matlab p file code
Here xyz is the name of your group, abc is your userid, mydir is the directory which contains trypar.m and trypar.pbs. We can only run compiled MATLAB code on ARGO due to licensing restrictions. You can run trypar.m in parallel using below lines in your slurm script. Module load matlab_2018a matlab -nodisplay -nosplash -r trypar You can run trypar.m in parallel at the prompt of an hyak interactive node: M圜luster.JobStorageLocation = strcat('/gscratch/xyz/abc/', getenv('SLURM_JOB_ID')) % Set the JobStorageLocation to the temporary directory that was created in your slurm script The argument should match what you request in your job for core count. (For the most common type of nodes on mox, numcores=28 assuming you had access to this node model type and needed the entire node. A semicolon after a matlab command means that matlab will not print the output of that command. This creates a temporary directory which Matlab will use to store its cluster information. NumCores above is the number of cores allocated to your job by slurm)īelow xyz is your group name and abc is your userid.Īdd below lines to your slurm script before the matlab command. It is not the number of cores on the machine.
(If your run parpool without giving the number of cores, then the default number of cores is 12. For interactive use:Īt the matlab prompt enter below command to start the parallel pool Hence, for the build node, the matlab command "feature('numcores')" will return 1. Statistics and Machine Learning Toolbox Matlab parallel programming on hyak:ĭo not use the build node for matlab parallel programming. Module load matlab_2018a matlab -nosplash -nodisplay At the matlab prompt enter below command to find the list of toolboxes: Then type below commnds to get a matlab prompt. Obtain an interactive node as shown above. TaskIDstring = getenv('SLURM_ARRAY_TASK_ID')
For example, to get the value of the environment variable SLURM_ARRAY_TASK_ID use below lines: Inside your matlab script, you can access environment variables. Module load matlab_2018a matlab -nosplash -nodisplay -r myfunction Environment variables in Matlab: The -nojvm option prevents usage of parpool for matlab parallel computing.) Here the file name of the matab script is myfunction.m. Include below lines in your slurm script. Use below command to load matlab and start the GUIĪfter the above step, you can continue with your matlab commands at the matlab command line. Ssh -X -p xyz -A xyz -nodes=1 -ntasks-per-node=28 -time=2:00:00 -mem=100G -pty /bin/bashīelow command shows you the available matlab versions on hyak: Below abc is your userid and xyz is your group name.
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