Therefore, by pasting the following content to /etc/slurm/nf on compute nodes, this issue can be fixed.
1Įrror: cgroup namespace 'freezer' not mounted. If we start Slurm service right now, we may receive this error shown below. 1Ĭlab-all$ sudo chmod 400 /etc/munge/munge.keyĬlab-all$ chown munge:munge /etc/munge/munge.keyīy default, there Slurm cannot work with Cgroup well. Then make sure the permission and the ownership are correctly set. We could also utilize the shared storage to distribute the key. Therefore, we could distribute the key on the management node to the remaining nodes including compute nodes and other backup management node if existing. It is requried for all machines to hold the same key. Once Munge is installed successfully, the key /etc/munge/munge.key will be automatically generated. Tips: Don't forget the shared storage (e.g. ThreadsPerCore: For a regular x86 server, if hyperthreading is enabled, it should be 2, otherwise 1.Ĭlick submit, then we could copy the file content to /etc/slurm-llnl/nf on all machines.CoresPerSocket: Number of physical cores per socket.Sockets: For a dual-socket server we commonly see, it should be 2.CPUs: It is recommended to leave it blank.And we should carefully check the fields below. There is an official online configuration generator. iTerm2 (on Mac) / Terminator (on Linux).Tips: There are several tools that may help to manage multiple nodes easily:
#Csshx iterm2 install#
1Ĭlab-all$ sudo apt install slurm-wlm slurm-client munge ( clab-all refers to all machines including management and compute nodes).
Install DependenciesĮxecute the following command to install the dependencies on all machines. In our case, the management node is called clab-mgt01 while the compute nodes are named from clab01 to clab20 in order. This aritcle will take our cluster as an example to demostrate steps to install and configure Slurm. Slurm will make a bunch of seperated machines look much like a cluster, is it right? Naming Convention of NodesĪ common cluster should comprise management nodes and compute nodes.
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