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.