A whole node = 4 A100. Other teams pack 1-GPU jobs onto shared nodes, so "busy" means at least one GPU in use, not fully allocated. For a TP=4 vLLM run you want a fully free node.
Reservation
account--
partition--
state--
window--
Team jobs
Job
Role
State
Time
Limit
Where / why
Start
No team jobs running or queued.
Reservation queue · running first, then pending by priority