Remote direct memory access: Difference between revisions

Revision as of 23:27, 11 November 2004

Revision as of 21:13, 7 April 2005

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'''Remote Direct Memory Access''' ('''RDMA''') is a concept whereby two or more [[computer]]s communicate via [[Direct Memory Access]] directly from the [[main memory]] of one system to the main memory of another. As there is no CPU, cache, or context switching overhead needed to perform the transfer, and transfers can continue in parallel with other system operations, this is particularly useful in applications where high thoughput, low latency networking is needed such as in massively parallel [[Linux]] clusters. The most common RDMA implementation is over [[InfinibandInfiniBand]]. Although RDMA over InfinibandInfiniBand is technologically superior to most alternatives, it faces an uncertain commercial future.

== RDMA over TCP/IP ==