The Login process is dependent on what network you are starting from and whether you have been issued an ORNL computer and UCAMS ID.

CADES login nodes are not directly accessible from all networks so some starting points, such as ORNL-Visitor wireless, will require a few additional steps.

Cades Condo Login Node
Open research
ARM users only
External collaborators
must jump through
this external access node


To properly utilize SHPC Condos, you will need a couple of utilities loaded on your local machine. These utilities are free and widely used for this type of application.

📝 Note: CADES does not provide support for getting these utilities up and running on your personal computer.

MacOS and Linux

Both macOS and Linux distributions include a Bash terminal and an SSH client by default. No additional software should be required to access SHPC Condos.

Windows Users

Windows 10 has a native SSH client available through Command Prompt and PowerShell. If you are using an older version of Windows, or would prefer a graphical program, several solutions are linked below.

Login Process from the ORNL Campus

Network Who can access Method of access
ORNLWPA wireless

ORNL internal wired
Generally ORNL staff, however, visiting researchers
or contractors who are issued a UCAMS id and an ORNL computer
may be able to access these networks and use this process.

Your user ID will be a UCAMS ID.
Log in directly from the CADES Condo login nodes:
Open condos:
ARM users only:
Moderate condos:
ornl-visitor wireless Collaborating Researchers who are not ORNL staff You must go through the CADES external access node before accessing the login nodes.

Step 1: Login to the access node

Step 2: Log in to the condos
Open condos:
ARM users Only:
ssh user-id@ssh
Moderate condos:

Login Process from a Remote Location

How you login to CADES from a remote location will also depend on whether you are ORNL staff or not. ORNL staff will have a UCAMS ID and non-staff collaborators will only have an XCAMS ID.

Remote Access for ORNL Staff

For ORNL staff members, external access to CADES will require an ORNL issued RSA soft or hard token from the Solution Center (865-241-6765) and access to the ORNL VPN or external ORNL login nodes. CADES can not request these on your behalf.

📝 Note: You will need to contact the ORNL solutions center to get setup with RSA tokens and VPN.

VPN Method

Use this method if you are initiating your remote access from an ORNL-owned computer. Request an RSA token and VPN access from the ORNL Solution Center (865-241-6765) if you do not already have them. Cades cannot make this request for you, and you will need to install the VPN while you are on campus. Use your RSA Token to active the ORNL VPN then login as if you were on campus: * Open condos: ssh * ARM users only: ssh * Moderate condos: ssh * Contact the ORNL Solution Center for VPN or RSA token help

External ORNL login node method

Alternately, you can request an RSA token and access to ORNL's external login nodes, or

Once you have access to the external login nodes and your RSA Token:

Step 1: Login to an ORNL external login node:

Step 2: Login to a condo login node:

Remote Access for Non-ORNL Staff

You must go through the CADES external visitor login node before accessing the condo login nodes.

📝 Note: You may need a Service-to-ORNL PAS to gain access to the external login node. For instructions about how to gain access to the external login node please see Requesting access to CADES Open SHPC condos.

Step 1: Login to the visitor login node:

Step 2: Login to a condo login node:

Login Nodes Usage Policy

Cluster login nodes are shared resources. A user must avoid overloading these shared resources. Doing so will inadverdently affect other users sharing the same login system. On login nodes, resource heavy jobs will be prompted swiftly by system monitoring facility. Please migrate heavy workflow onto compute node[s] by following the message instruction or references below: