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In computer science, distributed shared memory (DSM) is a form of memory architecture where physically separated memories can be addressed as a single shared address space. The term "shared" does not mean that there is a single centralized memory, but that the address space is shared—i.e., the same physical address on two processors refers to the same location in memory.[1]: 201 Distributed global address space (DGAS), is a similar term for a wide class of software and hardware implementations, in which each node of a cluster has access to shared memory in addition to each node's private (i.e., not shared) memory.
- ^ Patterson, David A.; Hennessy, John L. (2006). Computer Architecture: A Quantitative Approach (4th ed.). Burlington, Massachusetts: Morgan Kaufmann. ISBN 978-01-2370490-0.