/usr/bin/fi_pingpong: invalid option -- '-'
Usage:
  /usr/bin/fi_pingpong [OPTIONS]		start server
  /usr/bin/fi_pingpong [OPTIONS] <srv_addr>	connect to server

Ping pong client and server

Options:
 -B <src_port>        source control port number (server: 47592, client: auto)
 -P <dst_port>        destination control port number (client: 47592)
 -d <domain>          domain name
 -f <fabric>          fabric name
 -s <source address>  source address associated with domain name
 -p <provider>        specific provider name eg sockets, verbs
 -e <ep_type>         endpoint type: msg|rdm|dgram (dgram)
 -I <number>          number of iterations (10)
 -S <size>            specific transfer size or 'all' (all)
 -c                   enables data_integrity checks
 -m <transmit mode>   transmit mode type: msg|tagged (msg)
 -h                   display this help output
 -v                   enable debugging output
 -6                   use IPv6 address