A user direct access programming library (or uDAPL) defines a single set of user application program interfaces (APIs) for all Remote direct memory access (RDMA)-capable transports. The uDAPL mission is to define a transport-independent and platform-standard set of APIs that exploit RDMA capabilities, such as those present in InfiniBand, Virtual Interface Architecture (VIA), and ROI WG of Internet Engineering Task Force (IETF).
References
User Direct Access Programming Library Wikipedia(Text) CC BY-SA