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fi_info(1)			   @VERSION@			    fi_info(1)

NAME
       fi_info - Simple utility to query for fabric interfaces

SYNOPSIS
	       fi_info [OPTIONS]

DESCRIPTION
       The  fi_info  utility  can be used to query for available fabric inter‐
       faces.  The utility supports filtering based on	a  number  of  options
       such  as	 endpoint  type, provider name, or supported modes.  Addition‐
       ally, fi_info can also be used to discover  the	environment  variables
       that  can  be used to tune provider specific parameters.	 If no filters
       are specified, then all available fabric interfaces for	all  providers
       and endpoint types will be returned.

OPTIONS
   Filtering
       -n,  --node=<NAME>  :  Node  name or address used to filter interfaces.
       Only interfaces which can reach the given node or address will respond.

       -P, --port=<PORT> : Port number used to filter interfaces.

       -c, --caps=<CAP1|CAP2>.. : Pipe separated list of capabilities used  to
       filter  interfaces.   Only interfaces supporting all of the given capa‐
       bilities will respond.	For  more  information	on  capabilities,  see
       fi_getinfo(3).

       -m,  --mode=<MOD1|MOD2>.. : Pipe separated list of modes used to filter
       interfaces.  Only interfaces supporting all of  the  given  modes  will
       respond.	 For more information on, modes see fi_getinfo(3).

       -t,  --ep_type=<EPTYPE> : Specifies the type of fabric interface commu‐
       nication desired.  For example,	specifying  FI_EP_DGRAM	 would	return
       only  interfaces	 which support unreliable datagram.  For more informa‐
       tion on endpoint types, see fi_endpoint(3).

       -a, --addr_format=<FMT> : Filter fabric	interfaces  by	their  address
       format.	 For  example,	specifying  FI_SOCKADDR_IN  would  return only
       interfaces which use sockaddr_in structures for addressing.   For  more
       information on address formats, see fi_getinfo(3).

       -p, --provider=<PROV> : Filter fabric interfaces by the provider imple‐
       mentation.  For a list of providers, see the --list option.

       -d, --domain=<DOMAIN> : Filter interfaces to only those with the	 given
       domain name.

       -f,  --fabric=<FABRIC> : Filter interfaces to only those with the given
       fabric name.

   Discovery
       -e, --env : List libfabric related environment levels which can be used
       to enable extra configuration or tuning.

       -l, --list : List available libfabric providers.

       -v,  --verbose  : By default, fi_info will display a summary of each of
       the interfaces discovered.  If the verbose option is enabled, then  all
       of  the	contents  of  the  fi_info  structure are displayed.  For more
       information on the data contained in the fi_info structure, see fi_get‐
       info(3).

       --version : Display versioning information.

USAGE EXAMPLES
	      $ fi_info -n 30.0.11.1 -p usnic -t FI_EP_DGRAM

       This  will  respond  with  all fabric interfaces that can reach address
       30.0.11.1 using endpoint type FI_EP_DGRAM with the usNIC provider.

OUTPUT
       By default fi_info will output a summary of the fabric interfaces  dis‐
       covered:

	      $ ./fi_info -n 30.0.11.1 -p usnic -t FI_EP_DGRAM
	      provider: usnic
		  fabric: 30.0.11.0/24
		  domain: usnic_2
		  version: 1.0
		  type: FI_EP_DGRAM
		  protocol: FI_PROTO_UDP

       To see the full fi_info structure, specify the -v option.

SEE ALSO
       fi_getinfo(3), fi_endpoint(3)

AUTHORS
       OpenFabrics.

Libfabric Programmer's Manual	  2016-09-12			    fi_info(1)
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