Before accessing the Henry2 cluster

Access to the cluster is through a login node, and login nodes are accessed using SSH to connect to login.hpc.ncsu.edu. Before logging in, a user must read and understand the HPC Acceptable Use Policy (AUP), located here.

There is a pool of four login nodes, and they are shared with all users of Henry2. No resource intensive processes may be run on these shared login nodes. The purpose of a login node is to provide access to the cluster via SSH and to prepare for running a program (e.g., editing files, compiling, and submitting batch jobs). A compute node is used for running the program. To run interactive processes that are resource intensive, start an interactive session on a compute node.

This video on the HPC Acceptable Use Policy explains some of the technical details of the AUP including the difference between login nodes and compute nodes.

Logging in

MacOS/Linux

  • Terminal is already included in macOS.
    • Open the Terminal by opening the Applications folder, then the Utilities folder, and then click Terminal.app.
      Alternatively, use the Mac 'Spotlight Search' tool (hit [Command+Space] or click the magnifying glass in the tool bar) and search for Terminal.

Windows

  • MobaXterm

    Download and install the MobaXterm Home Edition (Installer edition).
    Open MobaXterm and click Start local terminal.

  • Click here for more detailed instructions on installing and configuring MobaXterm.
  • To connect to the shared HPC login nodes, open a terminal window and type ssh user_name@login.hpc.ncsu.edu, where user_name is the Unity ID.

    To allow Henry2 to open a window on a local machine, e.g., for GUI applications, X11 forwarding must be enabled by adding the -X option, i.e., ssh -X user_name@login.hpc.ncsu.edu. On macOS, install XQuartz to use X11 forwarding. When using MobaXterm, X11 is enabled by default.


    Video Tutorials
  • Logging in to Henry2 on macOS
  • Logging in to Henry2 on Windows using MobaXterm

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