Remote direct memory access: Difference between revisions

Revision as of 15:13, 22 October 2004

Revision as of 15:19, 22 October 2004

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