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Multi-process sharing of RDMA resources

In this video from the 2018 OpenFabrics Workshop, Alex Rosenbaum from Mellanox presents: Multi-process sharing of RDMA resources. "Dynamically-Connected (DC) transport is a combination of features from the existing UD and RC transports: DC has the ability to send every message to a different destination, like UD does, and is also a reliable transport - supporting RDMA and Atomic operations as RC does. The crux of the transport is dynamically connecting and disconnecting on-the-fly in hardware when changing destinations. As a result, a DC endpoint may communicate with any peer, providing the full RC feature set, and maintain a fixed memory footprint regardless of the size of the network. In this talk, we present the unique characteristics of this new transport, and show how it could be leveraged to reach peek all-to-all communication performance. We will review the DC transport objects and their semantics, the Linux upstream DC API and its usage." Learn more: http://mellanox.com and https://www.openfabrics.org/index.php... Sign up for our insideHPC Newsletter: http://insidehpc.com/newsletter