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:

                 0:0       First active port in system.

                 0:y       Port y within system.

                 x:0       First active port on HFI x.

                 x:y       HFI x, port y.

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.