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hwlocality_helper_nodeset_convert(3)                 Hardware Locality (hwloc)


NAME

       hwlocality_helper_nodeset_convert - Converting between CPU sets and
       node sets

   Functions
       static void hwloc_cpuset_to_nodeset (hwloc_topology_t topology,
           hwloc_const_cpuset_t _cpuset, hwloc_nodeset_t nodeset)
       static void hwloc_cpuset_to_nodeset_strict (struct hwloc_topology
           *topology, hwloc_const_cpuset_t _cpuset, hwloc_nodeset_t nodeset)
       static void hwloc_cpuset_from_nodeset (hwloc_topology_t topology,
           hwloc_cpuset_t _cpuset, hwloc_const_nodeset_t nodeset)
       static void hwloc_cpuset_from_nodeset_strict (struct hwloc_topology
           *topology, hwloc_cpuset_t _cpuset, hwloc_const_nodeset_t nodeset)

Detailed Description
       There are two semantics for converting cpusets to nodesets depending on
       how non-NUMA machines are handled.

       When manipulating nodesets for memory binding, non-NUMA machines should
       be considered as having a single NUMA node. The standard conversion
       routines below should be used so that marking the first bit of the
       nodeset means that memory should be bound to a non-NUMA whole machine.

       When manipulating nodesets as an actual list of NUMA nodes without any
       need to handle memory binding on non-NUMA machines, the strict
       conversion routines may be used instead.

Function Documentation
   static void hwloc_cpuset_from_nodeset (hwloc_topology_t topology,
       hwloc_cpuset_t _cpuset, hwloc_const_nodeset_t nodeset) [inline],
       [static]
       Convert a NUMA node set into a CPU set and handle non-NUMA cases. If
       the topology contains no NUMA nodes, the machine is considered as a
       single memory node, and the following behavior is used: If nodeset is
       empty, cpuset will be emptied as well. Otherwise cpuset will be
       entirely filled. This is useful for manipulating memory binding sets.

   static void hwloc_cpuset_from_nodeset_strict (struct hwloc_topology *
       topology, hwloc_cpuset_t _cpuset, hwloc_const_nodeset_t nodeset)
       [inline],  [static]
       Convert a NUMA node set into a CPU set without handling non-NUMA cases.
       This is the strict variant of hwloc_cpuset_from_nodeset(). It does not
       fix non-NUMA cases. If the topology contains some NUMA nodes, behave
       exactly the same. However, if the topology contains no NUMA nodes,
       return an empty cpuset.

   static void hwloc_cpuset_to_nodeset (hwloc_topology_t topology,
       hwloc_const_cpuset_t _cpuset, hwloc_nodeset_t nodeset) [inline],
       [static]
       Convert a CPU set into a NUMA node set and handle non-NUMA cases. If
       some NUMA nodes have no CPUs at all, this function never sets their
       indexes in the output node set, even if a full CPU set is given in
       input.

       If the topology contains no NUMA nodes, the machine is considered as a
       single memory node, and the following behavior is used: If cpuset is
       empty, nodeset will be emptied as well. Otherwise nodeset will be
       entirely filled.

   static void hwloc_cpuset_to_nodeset_strict (struct hwloc_topology *
       topology, hwloc_const_cpuset_t _cpuset, hwloc_nodeset_t nodeset)
       [inline],  [static]
       Convert a CPU set into a NUMA node set without handling non-NUMA cases.
       This is the strict variant of hwloc_cpuset_to_nodeset(). It does not
       fix non-NUMA cases. If the topology contains some NUMA nodes, behave
       exactly the same. However, if the topology contains no NUMA nodes,
       return an empty nodeset.

Author
       Generated automatically by Doxygen for Hardware Locality (hwloc) from
       the source code.

Version 1.11.1                  Thu Oct 15 2015
                                          hwlocality_helper_nodeset_convert(3)

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