hwlocality_helper_nodeset_convert(3)

NAME
hwlocality_helper_nodeset_convert - Converting between CPU sets and node sets

SYNOPSIS

  Functions
static int hwloc_cpuset_to_nodeset (hwloc_topology_t topology, hwloc_const_cpuset_t _cpuset, hwloc_nodeset_t nodeset)
static int hwloc_cpuset_from_nodeset (hwloc_topology_t topology, hwloc_cpuset_t _cpuset, hwloc_const_nodeset_t nodeset)

Detailed Description

Function Documentation

  static int 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. For each NUMA node included in the input nodeset, set the corresponding local PUs in the output _cpuset.

If some CPUs have no local NUMA nodes, this function never sets their indexes in the output CPU set, even if a full node set is given in input.

Hence the entire topology node set is converted into the set of all CPUs that have some local NUMA nodes.

  static int 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. For each PU included in the input _cpuset, set the corresponding local NUMA node(s) in the output nodeset.

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.

Hence the entire topology CPU set is converted into the set of all nodes that have some local CPUs.

Author

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