Grace is made up of several key components which can be seen in the diagram below. Further information on each component can also be found below.
The Head node is essentially the brains behind the HPC. It is responsible for tracking and allocating computing resources to users.
This is the node which controls user access and logon.
Is a physical and data link layer technology for Local Area Networks (LANs)
IB is a switched fabric, low latency, high throughput, communications link used in HPC.