DOKK / manpages / debian 10 / hwloc-nox / hwloc-assembler-remote.1.en
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 ...

Use the given ssh command (and options) to connect to remote hosts.
Use the given path as the remote lstopo command when gathering remote topologies. By default, lstopo is taken from the PATH environment variable.
Pass the given lstopo options when gathering remote topologies.
Display the resulting topology before exit.
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)

December 13, 2018 1.11.12