01_Connecting_SRT_English.srt

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There is a new web interface that can be used to access Puhti directly from a web browser.

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Note that the web interface is still a beta-version which means there might be further changes.

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Use you CSC username to log in.

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From there you can access your files in Puhti and launch some applications.

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More in-depth documentation is available in Docs CSC

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The usual way to log in to CSC supercomputers is using a secure shell (SSH). 

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SSH can be opened in for example in the Command Line Interface. 

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In Linux and Mac that is known as Terminal.

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We recommend to get familiar with the basics of a Command Line Interface,

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which is a little more spesific interface 

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that lets you use the full power of a supercomputer.

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We have documentation and an introductory tutorial on how to SSH to Puhti. 

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The links are in the description.

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Mac and Linux come with an SSH client in the Terminal by default. 

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In Windows 10, there's something called the PowerShell. 

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It can be used, but it might not be fully compatible with our set up. 

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Therefore we recommend another software called MobaXTerm which is free to use.

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Putty or CMDer can be used as well.

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Installing these software may require admin privileges, 

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so you might need your IT support to do this for you.

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If you do plain SSH, by default it might not allow displaying remote graphics. 

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On Linux or Mac you can just add a capital X or Y to your SSH command, 

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and it will tunnel the remote graphics from Puhti. 

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In Windows MobaXTerm has a way to do that, 

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or then you would need to install some other tools. 

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Sometimes you may edit files in your local computer and

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want to copy the files to a supercomputer or vice versa.

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You can use secure copy and RSync directly from the command line. 

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The basic syntax is scp or RSync, then source path, then target path.

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The path in another computer needs to include the domain and the username at that machine.

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RSync is available in MobaXTerm which is one reason

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we recommend MobaXTerm for Windows users. 

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Sometimes a graphical user interface for transferring files is much more convenient.

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For Windows FileZilla and WinSCP are good examples. 

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Installing them might require admin privileges.

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MobaXTerm also has a file transfer functionality. 

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When downloading files they go by default to a home folder, which is in a weird place. 

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The tip is to first choose this home directory from the Settings tab.

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Also Puhti web interface can be used to move files between Puhti and a local computer.

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SSH-keys are used for example in some RStudio or Jupyter Notebook workflows.

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You don't need SSH-keys for logging in to CSC supercomputers, 

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but they can make your workflows easier at some point. 

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A tutorial covers the setup for SSH-keys.

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The link is in the materials index page.

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The default workflow for editing files is to open an editor on Puhti. 

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With lot of files, for example when coding that is not so convenient.

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For these purposes you can install a suitable editor like Visual Studio code

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or configure Notepad++ so that they sync the files to Puhti. 

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We have some detailed documentation in docs.csc.fi 

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with instructions on how to set up such environment.

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The tutorials about Accounts and Connecting continue from here.

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They cover the basic use cases with easy-to-follow examples.

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Check the links in the description!