Remote atomic operations for clustered processing architecture

A method comprising:

• receiving, at a first caching agent for a first cluster of a plurality of clusters of a computing device, a request for performance of an atomic operation, the atomic operation requiring a data stored in a cacheline at a memory address associated with a home agent;
• evaluating one or more factors regarding atomic performance, the one or factors including a current ownership of the memory address and a state of the cacheline in a first cache;
• and
• based at least in part on the one or more factors, determining whether to perform the atomic operation at the first caching agent or to forward the atomic operation to the home agent for performance of the atomic operation.

At least one non-transitory computer-readable medium having stored thereon instructions which, when executed, cause a computing device to perform operations comprising:

• receiving, at a first caching agent for a first cluster of a plurality of clusters of the computing device, a request for performance of an atomic operation, the atomic operation requiring a data stored in a cacheline at a memory address associated with a home agent;
• evaluating one or more factors regarding atomic performance, the one or factors including a current ownership of the memory address and a state of the cacheline in a first cache;
• and
• based at least in part on the one or more factors, determining whether to perform the atomic operation at the first caching agent or to forward the atomic operation to the home agent for performance of the atomic operation.