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<strong>Intel®</strong> Omni-Path Architecture (<strong>Intel®</strong> OPA)<br />
RDMA Support<br />
<strong>Intel®</strong> OPA has always supported RDMA Functions for MPI-Based<br />
applications via PSM<br />
• 16 Send DMA (SDMA) engines and Automatic Header Generation provide<br />
HW-assists for offloading large message processing from the CPU<br />
<strong>Intel®</strong> OPA supports RDMA for Verbs I/O<br />
• RDMA is the underlying protocol for Verbs<br />
• Storage runs over verbs<br />
• Additional performance enhancements are coming<br />
• 8K MTU supported to further reduce CPU interrupts for I/O<br />
<strong>Intel®</strong> Solutions Summit 2016<br />
Intel Confidential 34
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