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HWLOC-ASSEMBLER-REMOTE(1) hwloc HWLOC-ASSEMBLER-REMOTE(1)

hwloc-assembler-remote - Assemble multiple remote host topologies

hwloc-assembler-remote [ options] output.xml host1 host2 ...

--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 environment 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.

hwloc-assembler-remote is a frontend to hwloc-assembler. It takes care of retrieving the remote nodes' topologies before assembling them with hwloc-assembler.

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`

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.

hwloc(7), lstopo(1), hwloc-assembler(1)
September 2, 2018 1.11.11

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