Bridges User Guide
Allocations for Bridges are given for "Bridges regular" or "Bridges large" and the two are charged differently.
Bridges regular and GPU nodes
The RSM nodes are allocated as "Bridges regular". Service Units are defined in terms of compute resources:
1 SU = 1 core-hour
GPU nodes are also charged at this rate. There is no extra charge for the use of the GPU units.
The LSM and ESM nodes are allocated as "Bridges large". Service Units are defined in terms of memory requested:
1 SU = 1 TB-hour
Managing multiple grants
If you have more than one grant, be sure to charge your usage to the correct one. Usage is tracked by group name.
Find your group names
To find your group names, use the
will list all the groups you belong to.
Find your current group
will list the group you associated with your current session.
Change your default group
Your primary group is charged with all usage by default. To change your primary group, the group to which your SLURM jobs are charged by default, use the
change_primary_group command. Type:
to see all your groups. Then type
to set groupname as your default group.
Charging for batch or interactive use
Batch jobs and interactive sessions are charged to your primary group by default. To charge your usage to a different group, you must specify the appropriate group with the
-A groupname option to the SLURM sbatch command. See the Running Jobs section of this Guide for more information on batch jobs, interactive sessions and SLURM.
Tracking your usage
projects command will help you keep tabs on your usage. It shows grant information, including usage and the scratch directory associated with the grant.