Controller address contention assumption

A system comprising:

• a memory having computer readable instructions;
• and one or more processors for executing the computer readable instructions, the computer readable instructions controlling the one or more processors to perform operations comprising:
• receiving, by a shared controller, a fetch request for data from a first requesting agent, the receiving via at least one intermediary controller;
• performing, by the shared controller, an address compare using a memory address of the data;
• in response to the memory address matching a memory address stored in the shared controller, acknowledging, by the shared controller, the at least one intermediary controller's fetch request, wherein upon acknowledgement, the at least one intermediary controller resets, wherein the acknowledging comprises exchanging tokens by the shared controller and the at least one intermediary controller, wherein the at least one intermediary controller transmits an identity of the first requesting agent and a type of operation associated with the requested data, and wherein the shared controller transmits an acceptance.