This file is indexed.

/usr/share/openmpi/help-oob-ud.txt is in openmpi-common 2.0.2-2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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# -*- text -*-
#
# Copyright (c) 2004-2006 The Trustees of Indiana University and Indiana
#                         University Research and Technology
#                         Corporation.  All rights reserved.
# Copyright (c) 2004-2006 The University of Tennessee and The University
#                         of Tennessee Research Foundation.  All rights
#                         reserved.
# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
#                         University of Stuttgart.  All rights reserved.
# Copyright (c) 2004-2005 The Regents of the University of California.
#                         All rights reserved.
#               2015      Mellanox Technologies, Inc.
#                         All rights reserved.
# Copyright (c) 2015 Cisco Systems, Inc.  All rights reserved.
# $COPYRIGHT$
#
# Additional copyrights may follow
#
# $HEADER$
#
[no-devices-error]
Open MPI has detected a failure in a basic verbs function call.  This
is unusual, and may indicate that something is malfunctioning on this
system.

You job will continue, but Open MPI will ignore the "ud" oob component
in this run.

Verbs function: ibv_get_device_list()
Error:          %s
Hostname:       %s

Please contact your system administrator.
#
[no-ports-usable]
Open MPI has detected that there are UD-capable Verbs devices on your
system, but none of them were able to be setup properly.  This may
indicate a problem on this system.

You job will continue, but Open MPI will ignore the "ud" oob component
in this run.

Hostname: %s
#
[reg-mr-failed]
Failed to register memory region (MR):

Hostname: %s
Address:  %x
Length:   %lu
Error:    %s
#
[notify-cq-failed]
Failed to request completion notification on a completion queue (CQ):

Hostname: %s
Error:    %s
#
[create-cq-failed]
Failed to create a completion queue (CQ):

Hostname: %s
Requested CQE: %d
Error:    %s

Check the CQE attribute.
#
[create-qp-failed]
Failed to create a queue pair (QP):

Hostname: %s
Requested max number of outstanding WRs in the SQ:                %u
Requested max number of outstanding WRs in the RQ:                %u
Requested max number of SGEs in a WR in the SQ:                   %u
Requested max number of SGEs in a WR in the RQ:                   %u
Requested max number of data that can be posted inline to the SQ: %u
Error:    %s

Check requested attributes.
#
[poll-cq-failed]
Failed to poll the CQ cq for work completions:

Hostname: %s
Number of entries: %d
Error:    %s
#
[poll-cq-failed-wc]
Failed to poll the CQ cq for work completions:

Hostname: %s
Number of entries: %d
Entry ID :         %d
WC status: %d
#
[post-send-failed]
Failed to post a list of work requests (WRs) to a send queue:

Hostname: %s
Error:    %s
#
[post-recv-failed]
Failed to post a list of work requests (WRs) to a receive queue:

Hostname: %s
Error:    %s
#
[modify-qp-failed]
Failed to modify the attributes of a queue pair (QP):

Hostname: %s
Mask for QP attributes to be modified: %d
Error:    %s
#
[destroy-qp-failed]
Failed to destroy a queue pair (QP):

Hostname: %s
Error:    %s
#