NAME¶

opashowmc

(Linux) Displays the Intel(R) Omni-Path Multicast groups created for the fabric along with the Intel(R) Omni-Path Host Fabric Interface (HFI) ports which are a member of each multicast group. This command can be helpful when attempting to analyze or debug Intel(R) Omni-Path multicast usage by applications or ULPs such as IPoIB.

Syntax¶

opashowmc [-v] [-m mgid] [-t portsfile] [-p ports]

Options¶

--help

Produces full help text.

-v

Returns verbose output and shows name of each member.

-m mgid

Shows the membership of the group <mgid> only.

-t portsfile

Specifies the file with list of local HFI ports used to access fabric(s) for analysis. Default is /etc/opa/ports file.

-p ports

Specifies the list of local HFI ports used to access fabric(s) for analysis.

Default is first active port. The first HFI in the system is 1. The first port on an HFI is 1. Uses the format hfi:port,
for example:

Examples¶

opashowmc

opashowmc -p '1:1 1:2 2:1 2:2' opashowmc -m 0xff12401b80010000:0x00000000ffffffff

Environment Variables¶

The following environment variables are also used by this command:

PORTS

List of ports, used in absence of -t and -p.

PORTS_FILE

File containing list of ports, used in absence of -t and -p.