Shared-memory architecture

In computer architecture, shared memory architecture (SMA) refers to a multiprocessing design where several processors access shared memory.

Shared memory architectures may use:

• Uniform Memory Access (UMA): all the processors share the physical memory uniformly.

• Non-Uniform Memory Access (NUMA): memory access time depends on the memory location relative to a processor.

• Cache-only memory architecture (COMA): the local memories for the processors at a node is used as cache.

Also

• Shared memory

References

Computer architecture