First steps: Difference between revisions

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(Created page with "===Getting help=== * ''Account renewal'': If you need to renew your account, you should first get the renewal approved by your sponsor (e.g. your supervisor, mentor etc), and then forward that confirmation to your group representative, Troels Haugbølle ([haugboel@nbi.ku.dk]), who will sign-off on the renewal and ask the admins to renew your account. * ''Contact support'': Tycho is a cluster installed at the HPC center at the faculty of SCIENCE. The administrators can...")
 
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===Getting help===
To start using Tycho, please follow these steps


* ''Account renewal'': If you need to renew your account, you should first get the renewal approved by your sponsor (e.g. your supervisor, mentor etc), and then forward that confirmation to your group representative, Troels Haugbølle ([haugboel@nbi.ku.dk]), who will sign-off on the renewal and ask the admins to renew your account.
* Get a user account by contacting a sponsor and signing up at


* ''Contact support'': Tycho is a cluster installed at the HPC center at the faculty of SCIENCE. The administrators can be contacted by e-mail: [support@hpc.ku.dk]. They will help with system related issues, such as problems with hanging frontend machines or compute nodes, storage that is not accessible, etc, and they will intervene in case of larger problems such as power cuts. They can also help with installation of non-specific system wide software.
https://hpc.ku.dk/account.html


* ''Use Mattermost'': We have a dedicated user forum for the cluster where you can contact other users, and get more instantaneous community feedback. This is also a good place to discuss usage or installation of scientific software.
You have to select "Astro" as your group. '''Remember to sign the rules-of-conduct-form'''
 
* If you have received the old welcome e-mail without a link to this wiki, the info is not correct. You should never login to fend0X.hpc.ku.dk, but instead use the Tycho-specific frontends called astro0X.hpc.ku.dk (see [[Hardware]] for an up to date list of available frontends / Analysis hardware).
 
* Set up an SSH key pair for secure passwordless login (see [[Accessing Tycho]])
 
* Add <code>module load astro</code> to you <code>$HOME/.bashrc</code> file to have access to all the custom installed software. You can read more about the <code>module</code> command.
 
* Consider changing <code>umask 077</code> to <code>umask 027</code> in <code>$HOME/.bashrc</code> to allow collaborators and/or your supervisor read access to your files when logged in to the cluster.
 
* If you are going to travel, but want to continue working on Tycho while you are travelling, you need to set up a Dynamic Firewall '''before''' traveling. You can do so by following the detailed instructions [https://hpc.ku.dk/documentation/otp.html: here]
 
* You can set up e.g. Visual Studio Code for remote development for transparent editing of files on the cluster. See [[Visual Studio Remote Development]]
 
* Every user has a 50 GB quota for the home folder (<code>/groups/astro/yourusername</code>. Whenever you are going to be working with large amounts of data, considering using the <code>/lustre/astro/yourusername</code> directory. This scratch folder is residing on a ZFS based high performance Lustre filesystem with dedicated hardware for our group. No quotas are enforced and the total space (disregarding the transparent compression) is 1300 TB.

Latest revision as of 08:14, 15 January 2024

To start using Tycho, please follow these steps

  • Get a user account by contacting a sponsor and signing up at

https://hpc.ku.dk/account.html

You have to select "Astro" as your group. Remember to sign the rules-of-conduct-form

  • If you have received the old welcome e-mail without a link to this wiki, the info is not correct. You should never login to fend0X.hpc.ku.dk, but instead use the Tycho-specific frontends called astro0X.hpc.ku.dk (see Hardware for an up to date list of available frontends / Analysis hardware).
  • Add module load astro to you $HOME/.bashrc file to have access to all the custom installed software. You can read more about the module command.
  • Consider changing umask 077 to umask 027 in $HOME/.bashrc to allow collaborators and/or your supervisor read access to your files when logged in to the cluster.
  • If you are going to travel, but want to continue working on Tycho while you are travelling, you need to set up a Dynamic Firewall before traveling. You can do so by following the detailed instructions here
  • Every user has a 50 GB quota for the home folder (/groups/astro/yourusername. Whenever you are going to be working with large amounts of data, considering using the /lustre/astro/yourusername directory. This scratch folder is residing on a ZFS based high performance Lustre filesystem with dedicated hardware for our group. No quotas are enforced and the total space (disregarding the transparent compression) is 1300 TB.
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