NAME

       hwlocality_helper_nodeset_convert

SYNOPSIS

   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

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