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Huge increase of RAM makes parallel mpirun fails |
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November 8, 2017, 09:34 |
Huge increase of RAM makes parallel mpirun fails
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#1 |
New Member
Charlie Barraud
Join Date: Jun 2016
Posts: 5
Rep Power: 10 |
Hello,
I am trying to launch a 2D simulation in my University cluster which runs on SLURM workload manager. My case is quite simple, the mesh being regular and homogeneous. I tested it on my local machine and there is no problem but when running in the cluster, the RAM hugely increases leading to the fail of the work "slurmstepd: error: Exceeded job memory limit at some point." The available memory is 45 GB. In my local machine only 2 GB are used anyway. Now the weird thing is that I was so desperate so I tried to run a 2,500,000 cells case which was successful. This randomness is a bit disorientating. Could it come from the MPI settings of the cluster ? Any one had the same issue ? I thank you all for your time and hope you can provide me with some help, Charlie |
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November 11, 2018, 16:38 |
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#2 |
Senior Member
M. Montero
Join Date: Mar 2009
Location: Madrid
Posts: 155
Rep Power: 17 |
Here the same problem. Did you find how to solve it?
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November 12, 2018, 10:42 |
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#3 |
New Member
Edward
Join Date: Nov 2018
Location: Ottawa
Posts: 9
Rep Power: 7 |
If your case file runs perfectly on your local machine, then there must be an issue with either your SLURM script file or the MPI settings on the cluster.
I would first double check my script files to make sure my code is correct and then try asking your University cluster administrator for help. |
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Tags |
cluster computing, mpi error, parallel calculation, ram issues |
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