The login nodes are the front end to the cluster for all our users. They are accessible from on and off campus. They are a shared resource and, as such, it is expected that users do not monopolize them.
Appropriate uses of the login nodes:
- Transferring files to and from the clusters
- Creating, modifying, and compiling code and submission scripts
- Submitting and monitoring the status of jobs
- Testing executables to ensure they will run on the cluster’s infrastructure (limited to a maximum of 5 minutes of cpu-time).
The login nodes only allow connections from within the umich network, connections from the public internet are not allowed. To login from off campus you will need to use either the ITS Login Service or the ITS VPN Service.
Primary login node pool biostat-login.sph.umich.edu will log you into one of the login nodes randomly. If you need to use the same node, for instance to use an existing screen session, here is the list of current nodes that make up the login pool.