Data processing system, method and interconnect fabric supporting concurrent operations of varying broadcast scope

A processing unit for a data processing system including a first processing node and a second processing node coupled by an interconnect fabric, wherein said first processing node includes one or more first processing units including said processing unit that are coupled to each other for communication and said second processing node includes one or more second processing units coupled to each other for communication, said processing unit comprising:

• a master that initiates operations;
• and
• interconnect logic that processes a plurality of concurrently pending broadcast operations of differing broadcast scope, wherein at least a first of said plurality of concurrently pending broadcast operations has a first scope limited to said first processing node and at least a second of said plurality of concurrently pending broadcast operations has a second scope including said first processing node and said second processing node.

A method of data processing in a data processing system including a first processing node and a second processing node coupled by an interconnect fabric, wherein said first processing node includes one or more first processing units including said processing unit that are coupled to each other for communication and said second processing node includes one or more second processing units coupled to each other for communication, said method comprising:

• a first processing unit in said first processing node processing a plurality of concurrently pending broadcast operations of differing broadcast scope, wherein at least a first of said plurality of concurrently pending broadcast operations has a first scope limited to said first processing node and at least a second of said plurality of concurrently pending broadcast operations has a second scope including said first processing node and said second processing node.