Amarel Compute Cluster - General

Notes:

When making files, sure the ‘group owner’ is the Holmes Lab group, g_ah1491_1. To change the group owner, run in the terminal $ chgrp g_ah1491_1 /path/to/file.ext (or for a folder, $chgrp -R g_ah1491_1 /path/to/folder)
- To see who the group owner is, run $ls -l. The file/folder will be listed as rwxrwxrwx author group ...
1-2 days a month Amarel does maintenance- you can’t connect to the compute nodes, see or edit your files, and any running jobs will be paused (though they won’t be stopped). You can see when maintenance days are scheduled here: https://oarc.rutgers.edu/amarel-system-status

Permissions

Example: Using getfacl to view the current permissions for ‘examplescript’. Using setfacl to provide user ‘netID’ read, write, and execute (rwx) permissions to ‘examplescript’.

getfacl examplescript
setfacl -m u:netID:rwx examplescript

To see what permissions you have in a directory, you can do

ls -ld /home/netID

OARC Resources:

Granting access to files and folders for other users

Help desk: email help@oarc.rutgers.edu

Amarel Info:

Amarel OS: CentOS Linux release 7.9.2009 (Core)

Resources from OARC:

How to use Amarel:

Applications (Conda, Singularity, Python, R)
User Guide (Policies, Storage, Slurm, File transferring)
Beginner Information Hub - Linux, Bash, Code Editors, etc
Getting access (requesting an account)
User environment

Using Compute Notes

Using Software

FAQ