Data processing system with cache optimised for processing dataflow applications

Semiconductor device for use in a data processing environment optimised for processing dataflow applications with tasks and data streams, where different streams compete for shared cache resources, wherein an unambiguous stream identification (stream_id) is associated to each of said data stream, comprising:

• a cache memory (200) having a plurality of cache blocks, and
• a cache controller (300) for controlling said cache memory (200), wherein said cache controller (300) is associated to said cache memory (200);
• said cache controller (300) comprising:
• selecting means (350) for selecting locations for storing elements of a data stream in said cache memory (200) in accordance to said stream identification (stream_id).

Method for indexing a cache memory (200) in a data processing environment optimised for processing dataflow applications with tasks and data streams, where different streams compete for shared cache resources,

• wherein said cache memory (200) comprises a plurality of cache blocks, and
• wherein an unambiguous stream identification (stream_id) is associated to each of said data stream,
• comprising the step of:
• selecting locations for storing elements of a data stream in said cache memory (200) in accordance to said stream identification (stream_id).