International Business Machines Corporation

Randall Todd Kunkel

Jerry Wayne Stevens

Donald W Schmidt

Jeffrey Douglas Haggar

David Anthony Herr

Shared memory communication is facilitated between systems of a computing environment capable of communicating over a network using transmission control protocol/Internet protocol (TCP/IP). The network includes a network path between one system and another system of the computing environment, where the network path passes through one or more routers of the network. The facilitating includes obtaining performance-related data for shared memory communication of the one system with the other system across the network path using a remote direct memory access (RDMA) protocol. Based on the performance-related data, the facilitating includes dynamically determining whether to use the RDMA protocol for shared memory communication of the one system with the other system across the network path, rather than the TCP/IP protocol.

Dynamic exclusion of RDMA-based shared memory communication based on performance-related data

According to one or more embodiments, a computer implemented method includes deploying a first virtual container to host an instance of a first computer application that is non-native to an operating system of a computer server. The method further includes allocating a virtual internet protocol address (VIPA) to the first virtual container. The method further includes creating a first virtual network interface card (NIC) associated with the first virtual container, and creating, by the virtual NIC, an internal route for the first virtual container to communicate with the internal router, the first virtual container being one hop behind a physical NIC of the computer server. The method further includes receiving a request to execute a second computer application that is native to the operating system, and in response, instantiating an instance of the second computer application, and allocating, a second VIPA to the instance of the second computer application.

Virtual container extended network virtualization in server cluster

A system for optimizing remote direct memory accesses (RDMA) is provided. The system includes a first computing device and a second computing device disposed in signal communication with the first computing device. The first and second computing devices are respectively configured to exchange RDMA credentials during a setup of a communication link between the first and second computing devices. The exchanged RDMA credentials include cache line size information of the first computing device by which a cache aligned RDMA write operation is executable on a cache of the first computing device in accordance with the cache line size information by the second computing device.

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Apex, NC, United States of America

Randall Todd Kunkel