Difference between revisions of "Useful Commands"
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== Useful Commands == | == Useful Commands == | ||
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| + | * To list processes you run on the cluster nodes, run this command on the head node: | ||
| + | <source lang="bash"> | ||
| + | ListMyProcesses | ||
| + | </source> <br> | ||
* The following command uses ''gstat'' to get a list of nodes by load. It then sorts the list by load/free CPUs and connects you to the node with the most free CPUs. The format below is an alias that you can put in your ''.bashrc'' file if you want it to be automatically applied to your environment. | * The following command uses ''gstat'' to get a list of nodes by load. It then sorts the list by load/free CPUs and connects you to the node with the most free CPUs. The format below is an alias that you can put in your ''.bashrc'' file if you want it to be automatically applied to your environment. | ||
Revision as of 22:18, 24 April 2012
Useful Commands
- To list processes you run on the cluster nodes, run this command on the head node:
ListMyProcesses
- The following command uses gstat to get a list of nodes by load. It then sorts the list by load/free CPUs and connects you to the node with the most free CPUs. The format below is an alias that you can put in your .bashrc file if you want it to be automatically applied to your environment.
alias fss='ssh `/opt/ganglia/bin/gstat -1a -i necluster | grep node | sort -gr -k 2 | sort -k 7 | head -n1 | cut -f1 -d" "`'
- Get cluster load information from Ganglia in a terminal:
/opt/ganglia/bin/gstat -p8649 -1a -i necluster
Other tips
- Temperature monitoring: http://nec549362.engr.utk.edu/cgi-bin/temp.cgi
