Memory access method and device for a numa system

A memory access device for a Non-Uniform Memory Access (NUMA) system comprising a plurality of nodes, each node configured to run a predetermined program and comprising a preset memory allocated for the predetermined program, wherein a same global physical address corresponds to each of the preset memories of each of the plurality of nodes, respectively, the device comprising:

• an operation module configured to perform an operation on a first preset memory local to a first node of the plurality of nodes when the predetermined program is running on the first node;
• and
• a synchronization module configured to synchronize the operation performed on the first preset memory to each preset memory local to each of the plurality of nodes, respectively,
• wherein each of the plurality of nodes is configured to access its local preset memory using the same global physical address when running the predetermined program on the node.

A Non-Uniform Memory Access (NUMA) system comprising:

• a plurality of nodes each configured to run a predetermined program, and a preset memory local to the node and allocated for the predetermined program, wherein a same global physical address corresponds to each preset memory of each of the plurality of nodes, respectively;
• an operation module configured to perform an operation on a first preset memory local to a first node of the plurality of nodes when the predetermined program is running on the first node;
• and
• a synchronization module configured to synchronize the operation performed on the first preset memory to each preset memory local to each of the plurality of nodes, respectively,
• wherein each of the plurality of nodes is configured to access its local preset memory using the same global physical address when running the predetermined program on the node.