Parallel external memory

In computer science, a parallel external memory (PEM) model is a cache-aware, external-memory abstract machine.^[1] It is the parallel-computing analogy to the single-processor external memory (EM) model. In a similar way, it is the cache-aware analogy to the parallel random-access machine (PRAM). The PEM model consists of a number of processors, together with their respective private caches and a shared main memory.

^ Arge, Lars; Goodrich, Michael T.; Nelson, Michael; Sitchinava, Nodari (2008). "Fundamental parallel algorithms for private-cache chip multiprocessors". Proceedings of the twentieth annual symposium on Parallelism in algorithms and architectures. New York, New York, USA: ACM Press. pp. 197–206. doi:10.1145/1378533.1378573. ISBN 9781595939739. S2CID 11067041.

[:0-1] Arge, Lars; Goodrich, Michael T.; Nelson, Michael; Sitchinava, Nodari (2008). "Fundamental parallel algorithms for private-cache chip multiprocessors". Proceedings of the twentieth annual symposium on Parallelism in algorithms and architectures. New York, New York, USA: ACM Press. pp. 197–206. doi:10.1145/1378533.1378573. ISBN 9781595939739. S2CID 11067041.

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