11-10-2016
reading (and understanding)
man ssh occasionally helps:
Quote:
FILES
.
.
.
~/.ssh/config
This is the per-user configuration file. The file format and configuration options are described in ssh_config(5). Because of the potential for abuse, this file must have strict permissions: read/write for the user, and not writable by others. It may be group-writable provided that the group in question contains only the user.
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LEARN ABOUT CENTOS
hwloc-assembler-remote
HWLOC-ASSEMBLER-REMOTE(1) hwloc HWLOC-ASSEMBLER-REMOTE(1)
NAME
hwloc-assembler-remote - Assemble multiple remote host topologies
SYNOPSIS
hwloc-assembler-remote [options] output.xml host1 host2 ...
OPTIONS
--ssh <ssh>
Use the given ssh command (and options) to connect to remote hosts.
--lstopo-path <path>
Use the given path as the remote lstopo command when gathering remote topologies. By default, lstopo is taken from the PATH envi-
ronment variable.
--lstopo-opts <opts>
Pass the given lstopo options when gathering remote topologies.
--show Display the resulting topology before exit.
-f --force
Ignore failure to load a remote host topology.
DESCRIPTION
hwloc-assembler-remote is a frontend to hwloc-assembler. It takes care of retrieving the remote nodes' topologies before assembling them
with hwloc-assembler.
EXAMPLES
To assemble three nodes topologies:
$ hwloc-assembler-remote output.xml host1 host2 host3
To assemble the topology of a multi-process MPI job defined as a machinefile:
$ hwloc-assembler-remote output.xml `cat machinefile | sort | uniq`
RETURN VALUE
Upon successful execution, hwloc-assembler-remote returns 0.
hwloc-assembler-remote will return nonzero if any kind of error occurs, such as (but not limited to) failure to parse the command line.
SEE ALSO
hwloc(7), lstopo(1), hwloc-assembler(1)
1.7 Apr 07, 2013 HWLOC-ASSEMBLER-REMOTE(1)