STAT - Compute Servers

1. Accessing Servers

2. Login Computer Machines

Introduction

In order to meet the computational needs of her faculty and students, the Statistics department provides several Linux compute servers on which associates of the department can run compute jobs. These servers are divided into three groups depending on their hardware, with each group being tailored to a different job type. Aside from the hardware, though, the servers are identical in how they are accessed and used. In fact, each user's home directory is persistent across all of the servers, so a file saved on one server will be available on all others as well.

You are strongly encouraged to ASC's Unity Compute Cluster instead of the stand alone compute nodes. Statistics has exclusive nodes and much more computer power in Unity.

Accessing the Servers

To access the compute machines, you must either be on the OSU wired network or using the VPN. (You can also access them from the ASC jump host - see "Related Articles" for inforation about connecting to jump.asc.ohio-state.edu.) From there, the process for connecting depends on whether you're using a Windows PC or a Mac.

Windows

Since Windows doesn't support SSH natively, you will need to use external software to access the servers. One such software that the Statistics department recommends is PuTTY, which is what this tutorial will assume you are using. 

Once PuTTY is open, find the field marked "Host Name (or IP address)" and enter name.#@server.stat.osu.edu in it, replacing name.# with your university user name and server with the name of whichever server you would like to log in to. A new window will then appear and you will be prompted for your university password. Enter it, then wait for a system message describing the hardware on the server and the prompt to change to stat-server$. Once it does, you are logged in to the server.

macOS

Logging in to the compute machines on macOS is rather straightforward. To begin, open a terminal window and type ssh name.#@server.stat.osu.edu, replacing name.# with your university user name and server with the name of the server you would like to log in to. You will then be prompted for your password. Once you enter the correct password, you will see a system message from the server that describes the hardware on it, followed by the prompt changing to stat-server$. This indicates that you are logged in to the server.

Login Compute Machines

Unix

As mentioned above, the hardware each compute server differs depending on what type of job it was designed to handle. Below is a list of all compute servers, as well as the hardware they are equipped with.

  • mordor
    Mordor has two Xeon X5560 2.8GHz 2.8GHz processors and 96GB ram. This machine is also equipped with an SAS license.

  • shire, rivendell, rohan, gondor
    These machines are intended for general compute jobs. They have Dual 12-core Xeon 2.6 E5-2690 and 128GB RAM. (Each core is about 2.2x as fast as the E5430s.)

There is also ASC's Unity Compute Cluster accessible to ASC users, Statistics has exclusive nodes.

Details

Article ID: 34174
Created
Tue 7/25/17 9:58 AM
Modified
Sat 3/13/21 6:08 PM