Guaranteed Service Independent of the Task Placement in NoCs with Torus Topology
Jörg Mische, Theo Ungerer · 2014
Hard real-time systems based on many cores connected by a Network-on-Chip (NoC) need Guaranteed Service (GS) for bounded communication latencies and bandwidths. Typically, GS is implemented by a Custom Schedule, a static periodic communication schedule that minimises network conflicts. It offers minimal latencies and maximum utilisation of the network, but requires the definition of all node-to-node connections at design time of the software. Therefore it is specific to a certain traffic pattern and placement of tasks to nodes.