hwloc-patch (1) - Linux Manuals
hwloc-patch: Apply a topology difference to an existing XML topology
NAME
hwloc-patch - Apply a topology difference to an existing XML topologySYNOPSIS
hwloc-patch [options] [<topology.xml> | refname] [<diff.xml> | -] <output.xml>
hwloc-patch [options] [<topology.xml> | refname] [<diff.xml> | -]
OPTIONS
- -R --reverse
- Reverse the sense the difference file.
- --version
- Report version and exit.
DESCRIPTION
hwloc-patch loads the difference between two topologies from a XML file (or from the standard input) and applies it to an existing topology, generating a new, modified one.The XML difference may have been computed earlier with hwloc-diff or hwloc-compress-dir.
If <output.xml> is given, the new, modified topology is stored in that new file. Otherwise, <topology.xml> is modified in place.
If refname is given instead of <topology.xml>, the input topology filename is automatically guessed by reading the refname field of the XML diff file. By default hwloc-diff generates XML diffs with the right reference topology filename (without any path prefix).
If - is given instead of <diff.xml>, the topology difference is read from the standard input.
NOTE: It is highly recommended that you read the hwloc(7) overview page before reading this man page. Most of the concepts described in hwloc(7) directly apply to the hwloc-patch utility.
EXAMPLES
hwloc-patch's operation is best described through several examples.
Apply a XML topology difference file to an existing topology:
Apply a XML topology difference file whole refname field contains the right input topology:
Apply a XML topology from the standard intput:
Directly compute the difference between two topologies and apply it
to another one, in place:
hwloc-patch also returns nonzero if any kind of error occurs, such as
(but not limited to) failure to parse the command line.
RETURN VALUE
Upon successful execution, hwloc-patch outputs the modified topology.
The return value is 0.