cluster_commands.md

BiBiGrid Cluster Commands

bibiinfo

Similar to sinfo but shows detailed information regarding node features.

bibilog

bibilog executes tail -f on the most recent worker creation out log. Thereby, it helps you with understanding any worker startup issues.

bibiplay

bibiplay is mainly a shortcut for ansible-playbook /opt/playbook/site.yaml -i /opt/playbook/ansible_hosts which allows you to execute the ansible playbook more easily.

Examples

You have changed something in the common configuration and want to propagate this change to the master.

bibiplay -l master
# executes the playbook only for the master

You have changed something in the slurm configuration and want to propagate this change to the master.

bibiplay -l master -t slurm

bibiname[m|v|default: w] [number]

This command creates node names for the user without them needing to copy the cluster-id. Takes two arguments. The first defines whether a master, vpngtw or worker is meant. Worker is the default. The second parameter - if vpngtw or worker is selected - defines which vpngtw or worker is meant.

Examples

Assume the cluster-id 20ozebsutekrjj4.

bibiname m
# bibigrid-master-20ozebsutekrjj4

bibiname v 0
# bibigrid-vpngtw-20ozebsutekrjj4-0

bibiname 0 # or bibiname w 0
# bibigrid-worker-20ozebsutekrjj4-0

A more advanced use would be to use the generated name to login into a worker:

ssh $(bibiname 0) # or bibiname w 0
# ssh bibigrid-worker-20ozebsutekrjj4-0