fi_udp - The UDP Fabric Provider
The UDP provider is a basic provider that can be used on any system that
supports UDP sockets. The provider is not intended to provide performance
improvements over regular TCP sockets, but rather to allow application and
provider developers to write, test, and debug their code. The UDP provider
forms the foundation of a utility provider that enables the implementation of
libfabric features over any hardware.
The UDP provider supports a minimal set of features useful for sending and
receiving datagram messages over an unreliable endpoint.
The UDP provider has hard-coded maximums for supported queue sizes and data
transfers. These values are reflected in the related fabric attribute
- Endpoint types
- The provider supports only endpoint type FI_EP_DGRAM.
- Endpoint capabilities
- The following data transfer interface is supported: fi_msg. The
provider supports standard unicast datagram transfers, as well as
- The provider does not require the use of any mode bits.
- The UDP provider supports both FI_PROGRESS_AUTO and
FI_PROGRESS_MANUAL, with a default set to auto. However, receive
side data buffers are not modified outside of completion processing
EPs must be bound to both RX and TX CQs.
No support for selective completions or multi-recv.
No support for counters.
No runtime parameters are currently defined.
fabric(7), fi_provider(7), fi_getinfo(3)