Identification of a computing device accessing a shared memory

A method for identifying, in a system including two or more computing devices that are able to communicate with each other via an interconnect, with each computing device provided with a cache and connected to the corresponding memory, the computing device accessing a first memory being one of the memories, the method comprising:

• monitoring memory access to the first memory via a memory device connected to the first memory, wherein monitoring memory access comprises identifying respective computing devices that access respective memories;
• monitoring cache coherency commands between computing devices via an interconnect between computing device and storing information related to the commands;
• identifying a command from a history of information related to the commands including a memory address identical to the memory address in memory access to the first memory;
• and
• identifying, as the computing device accessing the first memory, the computing device issuing the identified command at the timing closest to the timing of the memory access to the first memory.