ibv_ud_pingpong Command

Conducts a simple InfiniBand Unreliable Datagram transport test. Issued on the Linux InfiniBand host.

Syntax

ibv_ud_pingpong [-p TCP_port][-d device][-i IB_port][-s size][-r depth][-n iters][-l level][-e][-h][IP_address]

where:

• TCP_port is the TCP port.

• device is the InfiniBand device.

• IB_port is the InfiniBand port.

• size is the size of the ping-pong messages.

• depth is the number of depth receives to post at one time.

• iters is the number of message exchanges.

• level is the service level of the queue pair.

• IP_address is the IP address of the remote node host.

Description

This InfiniBand software command runs a simple ping-pong test over the InfiniBand fabric through the Unreliable Datagram transport. The command is dependent upon the Internet Protocol, so the InfiniBand fabric must be configured with Internet Protocol over InfiniBand (IPoIB). The command is a client-server, in that a remote node is configured as a server, while a local node performs as a client.

The command is first run locally on the server. The command is then run again locally on the client, pointing to the IP address of the server.

Options

The following table describes the options to the ibv_ud_pingpong command and their purposes:

Example

The following example shows how to run a simple ping-pong test between a local node client and a remote node server using the Unreliable Datagram transport with the ibv_ud_pingpong command. First configure the remote node server:

# ibv_ud_pingpong
     local address:  LID 0x0001, QPN 0xb40406, PSN 0x0ac0ba
     remote address: LID 0x0005, QPN 0x3d0406, PSN 0x87b264
4096000 bytes in 0.03 seconds = 1032.97 Mbit/sec
1000 iters in 0.03 seconds = 31.72 usec/iter
#

Then run the command on the local node client:

# ibv_ud_pingpong 192.168.200.100
     local address:  LID 0x0005, QPN 0x3d0406, PSN 0x87b264
     remote address: LID 0x0001, QPN 0xb40406, PSN 0x0ac0ba
4096000 bytes in 0.03 seconds = 1041.74 Mbit/sec
1000 iters in 0.03 seconds = 31.45 usec/iter
#

Related Information

• ibv_ud_pingpong man page

• ibv_rc_pingpong Command

• ibv_srq_pingpong Command

• ibv_uc_pingpong Command