Connecting to HPC Resources

Summary

MSI provides access to a variety of High-Performance Computing (HPC) systems designed to tackle a wide range of computational needs. This document will show you how you can access all of MSI computational resources from your personal computer.

Skills/Software Needed

If you are connecting from a computer running Windows OS you may need to download and install PuTTY

OSX and Linux does not require additonal software to connect.

Connecting to MSI

SSH

Your computer will communicate with MSI resources via SSH. More information about SSH

Connecting to MSI with Windows OS

If you are using the most recent version of Windows 10, you can perform basic ssh connections in your Command Prompt application. In this case, you can follow the OSX and Linux instructions below. 

For older versions of Windows, and for running graphical interfaces over SSH, see our PuTTy setup guide.

 

Connecting to MSI with OSX

Terminal is a preinstalled application which can be used to connect to MSI systems. Terminal can be found in the Utilities folder found in the Applications folder. 

Connecting to MSI with Linux OS

Terminal is a preinstalled application which can be used to connect to MSI systems. 

Connecting to Login Host 

Once you open the Terminal App or PuTTy type:

  • ssh yourMSIusername@login.msi.umn.edu
  • You will be prompted for your MSI password type it in then press enter. The terminal will not display your password as you type. 
  • The first time you log into MSI systems you will be asked if you would like to cache the server fingerprint, type yes and press return.

  • You are now connected to the MSI Login host (or bastion host). This host will let you view the directories but you can not submit jobs or run interactive computation on this host. 

Connecting to Mangi and Mesabi from Login Host

  • Once connected to the Login host, note the word login in your terminal prompt, you can connect to Mangi or Mesabi via ssh.
ssh mangi

or

ssh mesabi
  • MSI prohibits moving directly from one system to another. If you are connected to Mangi and would like to connect to Mesabi you will first have to exit back to the Login Host, then ssh to the new system. Commands are highlighted with red boxes in the example below. 

 

  • Each time you move between systems you will see the welcome message associated with the system you are connecting to. These messages often contain useful information and should be read. 
  • NOTE: Like the login node, Mangi and Mesabi have specific nomenclatures in the prompt. When connected to Mangi your prompt will contain cn followed by some number when connected to Mesabi your prompt will contain ln followed by some numbers. This is a quick short cut to remind you which system you are connected to at any time.