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.