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Access to the Cayuga cluster is restricted to connections from the Cornell Ithaca or Weill VPNs.
Athena
Parallel File System (3.8P)
Each of the cayuga projects will have a setup: /athena/cayuga_####/scratch/[cwid]
There is also a symlink from the labname per cayuga project: /athena/[labname] --> /athena/cayuga_####
Accessing the cayuga cluster
Once you have completed the form sent for gaining access via ssh to your account on the cayuga cluster, you will receive a welcome email guiding you through: CAC TechDocs
Access via ssh using public/privates keys – Instructions will be provided when accounts are created.
You will have access to all 3 of the login nodes in order to: submit jobs to the scheduler, gain access to your project data files on the /athena storage and your home directories.
Login nodes:
cayuga-login1.cac.cornell.edu
cayuga-login2.cac.cornell.edu
cayuga-vis1.cac.cornell.edu
Please email scu@med.cornell.edu with requests for cayuga cluster.
The below has documentation how to set up your access. This will only work if you have been ‘approved’ on our end.
https://www.cac.cornell.edu/techdocs/clusters/cayuga/
Please email scu@med.cornell.edu with requests for cayuga cluster.
The below has documentation how to set up your access. This will only work if you have been ‘approved’ on our end.
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You will follow the steps for setting up your access
For Steps 10 - 12 --- On Mac Terminal
Please note that you do not have to name your key as keyfile-private-file
| Code Block | ||
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scicomp@MAC2024 ~ %
scicomp@MAC2024 ~ % ls -ld ~/.ssh #Confirm you have a .ssh directory - in this example we have a .ssh
drwx------ 10 scicomp staff 320 Sep 4 14:38 /Users/scicomp/.ssh
#If you DO NOT have an output as above use command mkdir ~/.ssh
scicomp@MAC2024 ~ % cd .ssh
scicomp@MAC2024 .ssh % vim keyfile-private-file
#other commands: touch keyfile-private-file or nano keyfile-private-file
# chmod 600 ~/.ssh/keyfile-private-file
scicomp@MAC2024 .ssh % ls -l
-rw------- 1 scicomp staff 420 May 9 2024 keyfile-private-file
#permissions have been change.
#Your login will fail if your permissons are not as stated above.
scicomp@MAC2024 ~ % ssh -i ~/.ssh/<keyfile-private-file> <cwid>@cayuga-login1.cac.cornell.edu
#If you're not in the .ssh directory you will need the full path to the key
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Config file
Add to or create a new file on your laptop to add the login nodes and all hosts ~/.ssh/config
On Mac Terminal
| Code Block | ||
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scicomp@MAC2024 ~ %
scicomp@MAC2024 ~ % cd .ssh
scicomp@MAC2024 .ssh % ls #check what is listed below if there is anything
scicomp@MAC2024 .ssh % vim config |
Editing your config file
| Code Block | ||
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Host cayuga-login1
Hostname cayuga-login1.cac.cornell.edu
IdentityFile ~/.ssh/your_cayuga_key
User your_cwid
Host c00*
IdentityFile ~/.ssh/your_cayuga_key
User your_cwid
ProxyCommand ssh -i .ssh/your_key_name -W %h:%p cayuga-login1 |
In your chosen text editor you will save the file
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