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CMU Dev Team Machines
There are the "MemSQL Dev Machines" that we use for the class. Each machine is a dual-socket Xeon E5-2620 (6 cores / 12 threads -- total of 24 threads) with 128 GB DDR4.
Please contact Lin Ma if you are having technical problems.
Students without a PDL account should have been created one and received email about changing your initial password. If not, then you should contact Lin.
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Login Narwhal web interface at: http://narwhal.pdl.cmu.edu/ Go to Experimentation-->My Emulab-->Experiments. You should be able to see four experiments under CMU15721: node1, node2, node3, node-logging.
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All students can swap in node1/node2/node3 when they're available. Do not use the "node-logging" machine. It just maps to one of the three nodes. Currently they're single node leases with a maximum duration of 24 hours.
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The experiment will be forced to swap out after 24 hours from swap-in. Then all data will be erased and a fresh kernel will be installed. Make sure to copy all your useful data before expiration. If you have other requirements (e.g. multiple nodes, longer duration), you should contact us. Please do not create experiments by yourself. Important: If you finish your experiments before 24 hours, please swap out your experiment through the Narwhal web interface, so that others can take the machine.
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You'll receive an email that contains the Qualified Name of your node once your swapin is successful. Then you can log into ops using your PDL account. (ops.narwhal.pdl.cmu.edu). From ops, you can ssh to your node.
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Your home directories on ops and the nodes you perform experiments are shared. It is provided via NFS (Network File System) from an external filer. You should only use it to store and transfer your data. During experiment, you should read/write data in the /data directory on the node. That is the mount point of the local disk of your machine.
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Your nodes must use a proxy server to access the internet. The proxy for "apt-get" is already set for you. If you want to download other data from the internet, you should either transfer the data from your NFS directory through ops, or use the PDL central Proxy Servers: https://wiki.pdl.cmu.edu/Services/ProxyServer
More detailed information about Narwhal and user guide can be found here: https://wiki.pdl.cmu.edu/Narwhal/WebHome