Hierarchical general register file (grf) for execution block

An electronic device, comprising:

• a central processing unit;
• and
• a graphics processor communicatively coupled to the central processing unit, comprising:
• a general-purpose graphics processing compute block comprising a plurality of processing resources to execute compute instructions, wherein each of the plurality of processing resources comprises a local general register file (GRF) which operates at a first speed;
• a shared general register file (GRF) communicatively coupled to the plurality of processing resources, wherein the shared GRF operates at a second speed, slower than the first speed.