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As mentioned on the main page, Axon is a computer cluster where a scheduler program is used to submit compute tasks, called jobs, to one or more nodes in the cluster. Jobs are submitted to the cluster via a login node (axon.rc.zi.columbia.edu) as show shown in the diagram below:
Accounts on Axon
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| Lab Name | Lab Account Name |
|---|---|
| Center for Neurotheory | ctn |
| Kriegeskorte Lab | nklab |
| Issa Lab | issa |
| Bendesky Lab | ablab |
| Aronov Lab | aronov |
| Mesgarani Lab | naplab |
Polleux Lab | pascal |
U19 Motor | u19moc3 |
Litwin Kumar | lkumar |
Gadagkar | gadagkar |
Axel | axel |
Kahn | kahn |
Gogos | gogos |
Hillman | hillman |
Shadlen | shadlen |
Mann | mann |
The lab account name is an abbreviation associated with your lab that is used by the cluster manager on Axon and as a mechanism to separate your lab's files from another lab's data on the filesystem.
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| Warning | ||
|---|---|---|
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The login node has limited CPU and memory resources, and should only be used for the preparation of batch jobs or to start an interactive session on one of the nodes. Terminal sessions on axon.rc.zi.columbia.edu have limits enforced by the operating system- you may only use at most 1 GB of RAM and 6 hours worth of CPU time. Trying to use more resources will not work. This is to ensure that other researchers using the login node to submit jobs won't have their work disrupted. |
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The Axon login node can be accessed when you are on the Columbia campus or using the VPN by using command below (where UNI is replaced by your Columbia UNI):
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➤ ssh aa3301@axonUNI@axon.rc.zi.columbia.edu aa3301@axon.rc.zi.columbia.edu's password: Last login: Fri Dec 27 15:35:33 2019 from adm.rc.zi.columbia.edu [aa3301@axon ~]$ |
Connecting from outside the Columbia network
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> ssh -p 55 aa3301@axonUNI@axon-remote.rc.zi.columbia.edu aa3301@axon-remote.rc.zi.columbia.edu's password: Last login: Thu Apr 2 17:01:47 2020 from adm.rc.zi.columbia.edu Welcome to the Axon GPU Cluster! ... |
You can make an ssh config file to abbreviate the above command. By creating a file named ~/.ssh/config (if it doesn't already exist) you can connect using a shorter name:
| Code Block | ||||
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Host axon-remote
HostName axon-remote.rc.zi.columbia.edu
User aa3301
# change aa3301 above to your uniUNI
Port 55 |
Once you have ~/.ssh/config in place you can run the abbreviated ssh command shown below:
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> ssh axon-remote aa3301@axonUNI@axon-remote.rc.zi.columbia.edu's password: Last login: Thu Apr 2 17:53:41 2020 from vpn-10-192-140-203.dyn.columbia.edu Welcome to the Axon GPU Cluster! ... |
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