1fi_info(1) Libfabric v1.14.0 fi_info(1)
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6 fi_info - Simple utility to query for fabric interfaces
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9 fi_info [OPTIONS]
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12 The fi_info utility can be used to query for available fabric inter‐
13 faces. The utility supports filtering based on a number of options
14 such as endpoint type, provider name, or supported modes. Additional‐
15 ly, fi_info can also be used to discover the environment variables that
16 can be used to tune provider specific parameters. If no filters are
17 specified, then all available fabric interfaces for all providers and
18 endpoint types will be returned.
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21 Filtering
22 -n, –node=<NAME>
23 Node name or address used to filter interfaces. Only interfaces
24 which can reach the given node or address will respond.
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26 -P, –port=<PORT>
27 Port number used to filter interfaces.
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29 -c, –caps=<CAP1|CAP2>..
30 Pipe separated list of capabilities used to filter interfaces.
31 Only interfaces supporting all of the given capabilities will
32 respond. For more information on capabilities, see fi_get‐
33 info(3).
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35 -m, –mode=<MOD1|MOD2>..
36 Pipe separated list of modes used to filter interfaces. Only
37 interfaces supporting all of the given modes will respond. For
38 more information on, modes see fi_getinfo(3).
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40 -t, –ep_type=<EPTYPE>
41 Specifies the type of fabric interface communication desired.
42 For example, specifying FI_EP_DGRAM would return only interfaces
43 which support unreliable datagram. For more information on end‐
44 point types, see fi_endpoint(3).
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46 -a, –addr_format=<FMT>
47 Filter fabric interfaces by their address format. For example,
48 specifying FI_SOCKADDR_IN would return only interfaces which use
49 sockaddr_in structures for addressing. For more information on
50 address formats, see fi_getinfo(3).
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52 -p, –provider=<PROV>
53 Filter fabric interfaces by the provider implementation. For a
54 list of providers, see the --list option.
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56 -d, –domain=<DOMAIN>
57 Filter interfaces to only those with the given domain name.
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59 -f, –fabric=<FABRIC>
60 Filter interfaces to only those with the given fabric name.
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62 Discovery
63 -e, –env
64 List libfabric related environment variables which can be used
65 to enable extra configuration or tuning.
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67 *-g [filter]
68 Same as -e option, with output limited to environment variables
69 containing filter as a substring.
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71 -l, –list
72 List available libfabric providers.
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74 -v, –verbose
75 By default, fi_info will display a summary of each of the inter‐
76 faces discovered. If the verbose option is enabled, then all of
77 the contents of the fi_info structure are displayed. For more
78 information on the data contained in the fi_info structure, see
79 fi_getinfo(3).
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81 –version
82 Display versioning information.
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85 $ fi_info -n 30.0.11.1 -p usnic -t FI_EP_DGRAM
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87 This will respond with all fabric interfaces that can reach address
88 30.0.11.1 using endpoint type FI_EP_DGRAM with the usNIC provider.
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91 By default fi_info will output a summary of the fabric interfaces dis‐
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94 $ ./fi_info -n 30.0.11.1 -p usnic -t FI_EP_DGRAM
95 provider: usnic
96 fabric: 30.0.11.0/24
97 domain: usnic_2
98 version: 1.0
99 type: FI_EP_DGRAM
100 protocol: FI_PROTO_UDP
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102 To see the full fi_info structure, specify the -v option.
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105 fi_getinfo(3), fi_endpoint(3)
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108 OpenFabrics.
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112Libfabric Programmer’s Manual 2021-03-22 fi_info(1)