Understanding What a Login Node is

Audience: Faculty, Guests, Researchers, Staff and Students

This KB Article References: High Performance Computing
This Information is Intended for: Faculty, Guests, Researchers, Staff, Students
Last Updated: November 03, 2017

The login node provides an external interface to the LI-red or SeaWulf compute clusters. The login node is for developing and compiling source code, preparing submission scripts for the batch queue, submitting and monitoring jobs in the batch queue, analyzing results, and moving data. It is NOT appropriate for running computational jobs - to do this use the batch queue. If necessary, interactive batch session can be requested via the "qsub -I" command.


If you have an account on the cluster, you can access the login node via ssh: see Logging in to Seawulf or LI-Red

For more information about submitting batch jobs, see How do I use the batch processing system?


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