Method for third party, broadcast, multicast and conditional RDMA operations
US7478138B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2004 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Nov 23, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/166
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a multinode data processing system in which nodes exchange information over a network or through a switch, the mechanism which enables out-of-order data transfer via Remote Direct Memory Access (RDMA) also provides a corresponding ability to carry out broadcast operations, multicast operations, third party operations and conditional RDMA operations. In a broadcast operation a source node transfers data packets in RDMA fashion to a plurality of destination nodes. Multicast operation works similarly except that distribution is selective. In third party operations a single central node in a cluster or network manages the transfer of data in RDMA fashion between other nodes or creates a mechanism for allowing a directed distribution of data between nodes. In conditional operation mode the transfer of data is conditioned upon one or more events occurring in either the source node or in the destination node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.