Compared to NUMA, this reduces the number of redundant copies and may allow more efficient use of the memory resources. An access from a remote node may cause that data to migrate. When processors access some data, a copy is made in their local cache, but space remains allocated in the home node.
In NUMA, each address in the global address space is typically assigned a fixed home node. This is in contrast to using the local memories as actual main memory, as in NUMA organizations. JSTOR ( July 2021) ( Learn how and when to remove this template message)Ĭache only memory architecture ( COMA) is a computer memory organization for use in multiprocessors in which the local memories (typically DRAM) at each node are used as cache.Unsourced material may be challenged and removed.įind sources: "Cache-only memory architecture" – news Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification.
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