1fi_udp(7)                      Libfabric v1.10.0                     fi_udp(7)
2
3
4

NAME

6       fi_udp - The UDP Fabric Provider
7

OVERVIEW

9       The  UDP  provider  is  a basic provider that can be used on any system
10       that supports UDP sockets.  The provider is  not  intended  to  provide
11       performance  improvements over regular TCP sockets, but rather to allow
12       application and provider developers to write,  test,  and  debug  their
13       code.  The UDP provider forms the foundation of a utility provider that
14       enables the implementation of libfabric features over any hardware.
15

SUPPORTED FEATURES

17       The UDP provider supports a minimal set of features useful for  sending
18       and receiving datagram messages over an unreliable endpoint.
19
20       Endpoint types
21              The provider supports only endpoint type FI_EP_DGRAM.
22
23       Endpoint capabilities
24              The following data transfer interface is supported: fi_msg.  The
25              provider supports standard unicast datagram transfers,  as  well
26              as multicast operations.
27
28       Modes  The provider does not require the use of any mode bits.
29
30       Progress
31              The    UDP   provider   supports   both   FI_PROGRESS_AUTO   and
32              FI_PROGRESS_MANUAL, with a default set to  auto.   However,  re‐
33              ceive  side  data buffers are not modified outside of completion
34              processing routines.
35

LIMITATIONS

37       The UDP provider has hard-coded maximums for supported queue sizes  and
38       data  transfers.   These values are reflected in the related fabric at‐
39       tribute structures
40
41       EPs must be bound to both RX and TX CQs.
42
43       No support for selective completions or multi-recv.
44
45       No support for counters.
46

RUNTIME PARAMETERS

48       No runtime parameters are currently defined.
49

SEE ALSO

51       fabric(7), fi_provider(7), fi_getinfo(3)
52

AUTHORS

54       OpenFabrics.
55
56
57
58Libfabric Programmer's Manual     2018-10-05                         fi_udp(7)
Impressum