NAME

ibv_ud_pingpong - simple InfiniBand UD transport test

SYNOPSIS

ibv_ud_pingpong [-p port] [-d device] [-i ib port] [-s size] [-r rx depth] [-n iters] [-l sl] [-e] [-g gid index] HOSTNAME

ibv_ud_pingpong [-p port] [-d device] [-i ib port] [-s size] [-r rx depth] [-n iters] [-l sl] [-e] [-g gid index]

DESCRIPTION

Run a simple ping-pong test over InfiniBand via the unreliable datagram (UD) transport.

OPTIONS

-p, --port=PORT

use TCP port PORT for initial synchronization (default 18515)

-d, --ib-dev=DEVICE

use IB device DEVICE (default first device found)

-i, --ib-port=PORT

use IB port PORT (default port 1)

-s, --size=SIZE

ping-pong messages of size SIZE (default 2048)

-r, --rx-depth=DEPTH

post DEPTH receives at a time (default 500)

-n, --iters=ITERS

perform ITERS message exchanges (default 1000)

-l, --sl=SL

send messages with service level SL (default 0)

-e, --events

sleep while waiting for work completion events (default is to poll for completions)

-g, --gid-idx=GIDINDEX

local port GIDINDEX

SEE ALSO

ibv_rc_pingpong(1), ibv_uc_pingpong(1), ibv_srq_pingpong(1), ibv_xsrq_pingpong(1)

AUTHORS

Roland Dreier

<rolandd@cisco.com>

BUGS

The network synchronization between client and server instances is weak, and does not prevent incompatible options from being used on the two instances. The method used for retrieving work completions is not strictly correct, and race conditions may cause failures on some systems.