Atomic execution of processing-in-memory operations

A method comprising:

• receiving, at a memory controller and from a host processing device, a request for a processing-in-memory component to execute at least one operation of a microtransaction that defines a subset of operations for a transaction identified by a transaction identifier;
• maintaining, by the memory controller, a current counter and updating a value of the current counter in response to the processing-in-memory component completing execution of a prior transaction;
• and
• causing, by the memory controller, the processing-in-memory component to execute the at least one operation of the microtransaction by sending an acknowledgment message to the host processing device responsive to identifying that the value of the current counter maintained at the memory controller equals the transaction identifier.

A device comprising:

• a processing-in-memory component configured to:
• receive, from a memory controller associated with the processing-in-memory component, a request to execute at least one operation of a microtransaction that defines a subset of operations for a transaction identified by a transaction identifier;
• and
• execute the at least one operation of the microtransaction in response to a counter value, of a current counter maintained at the memory controller, being equal to the transaction identifier.