Cluster: Assembly of compute nodes, file systems, and job queues, along with login nodes and workstations, hosting a scheduler. Compute node group: Collection of Amazon EC2 instances with a distinct configuration of instance types, networking, storage, software, and security. Queue: Virtual location where jobs are stored until the scheduler executes them on instances in Compute node group(s). Login node group: Collection of Amazon EC2 instances where users can submit jobs or manage and visualize data. External resources: Customer-provided networked resources that support a cluster, like shared storage, directory, accounting database… Queue Jobs Cluster Storage Accounting database* LDAP directory Metrics Logs Cost Explorer Budgets Queue Compute node group Login node group Compute node group Compute node group Jobs Queue Jobs * Not in GA