Connecting and Logging in #
You can connect to Orca in two ways:
- Via
ssh(secure shell) using a terminal application. - Using Open OnDemand, a web-based interface.
Secure Shell (ssh)
#
You can connect to Orca using ssh (secure shell) run through a terminal application.
If you use Linux, Mac OS, or recent versions of Windows, a terminal application is included with the operating system.
Windows users may also consider using MobaXterm or PuTTY.
You can connect to Orca by running ssh username@login.orca.pdx.edu, replacing username with your Orca username.
Login Node #
The Orca login node is the where the users interface with the file system, scheduler, and other tools.
The Orca login node can be accessed at login.orca.pdx.edu.
The login node does not have a high-performance CPU or any GPUs.
For compute-intensive work, a job should be run on one or more of the compute nodes (see the pages on
Submitting Jobs
).
Warning
Do not run computational jobs on the login node. These are for logging in, accessing your home directory, accessing file systems, writing and editing files, compressing and uncompressing data sets, scheduling computational jobs, etc. Computational jobs should be run on compute nodes, through the Slurm job scheduler. Long computational process running on login nodes are liable to be terminated without notification.
Authentication with SSH Keys #
Open OnDemand #
See the documentation on OpenOnDemand.