15.1 Deploying Adaptive Computing IPMI Scripts
Context
If you want to enable green computing on your system using the Adaptive Computing supplied IPMI reference scripts, follow the steps here. The IPMI scripts provided are meant as a reference for you to configure the solution to your environment, but can also be used as-is.
IPMI scripts require customization for Cray XC systems. See Cray-Specific Power Management and Energy-Consumption-by-Job Accounting for more information.
Prerequisites
- OpenIPMI and ipmitool must be installed and working.
- All nodes must have the same IPMI username and password.
- You must know the IPMI host names and/or IPMI IP addresses of your nodes.
- Python must be installed. The provided IPMI scripts were developed using Python 2.6.5.
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- You must identify your Moab tools directory. These instructions assume the default Moab tools directory of /opt/moab/tools.
To deploy the Adaptive Computing IPMI scripts
- Edit the /opt/moab/tools/ipmi/config.py script:
- Set self.ipmiuser to the IPMI username for your nodes.
Set self.ipmipass to the location of the IPMI password file (/opt/moab/passfile.txt by default).
The permissions for the directory and the password file itself should be set so that they can be read only by root or the Moab user running the script.
- Set self.homeDir to your Moab home directory.
- If desired, change the self.pollInterval value. This is the interval, in seconds, between polls from the IPMI monitoring script.
- The self.ipmifile value is the name of a temporary file where the cluster query information is stored. You can change this or leave it alone.
- The self.bmcaddrmap value is the filename for the Moab node name/IPMI mapping. The file must exist in the Moab home directory and will be created in the next step.
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Create a node-bmc.txt file in the Moab home directory. The file must contain a space-delimited list of Moab node names that map to the IPMI host names or IP address. For Example:
node01 node01_ipmi # For all three of these entries, the first value is the node02 node02_ipmi # node name as Moab knows it. The second value is either node03 10.1.1.1 # the node IPMI name or IPMI IP address.
- Configure the moab.cfg file for green computing as described in Enabling green computing. Use the ipmi.mon.py script for the CLUSTERQUERYURL and the ipmi.power.py script for the NODEPOWERURL.
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Restart Moab and verify green computing is working correctly. If you encounter trouble, see the Troubleshooting green computing topic for help.
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