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hwlocality_linux_libnuma_bitmask(3)                  Hardware Locality (hwloc)


NAME

       hwlocality_linux_libnuma_bitmask - Interoperability with Linux libnuma
       bitmask

   Functions
       static struct bitmask * hwloc_cpuset_to_linux_libnuma_bitmask
           (hwloc_topology_t topology, hwloc_const_cpuset_t cpuset)
       static struct bitmask * hwloc_nodeset_to_linux_libnuma_bitmask
           (hwloc_topology_t topology, hwloc_const_nodeset_t nodeset)
       static int hwloc_cpuset_from_linux_libnuma_bitmask (hwloc_topology_t
           topology, hwloc_cpuset_t cpuset, const struct bitmask *bitmask)
       static int hwloc_nodeset_from_linux_libnuma_bitmask (hwloc_topology_t
           topology, hwloc_nodeset_t nodeset, const struct bitmask *bitmask)

Detailed Description
       This interface helps converting between Linux libnuma bitmasks and
       hwloc cpusets and nodesets.

       It also offers a consistent behavior on non-NUMA machines or non-NUMA-
       aware kernels by assuming that the machines have a single NUMA node.

       Note:
           Topology topology must match the current machine.

           The behavior of libnuma is undefined if the kernel is not NUMA-
           aware. (when CONFIG_NUMA is not set in the kernel configuration).
           This helper and libnuma may thus not be strictly compatible in this
           case, which may be detected by checking whether numa_available()
           returns -1.

Function Documentation
   static int hwloc_cpuset_from_linux_libnuma_bitmask (hwloc_topology_t
       topology, hwloc_cpuset_t cpuset, const struct bitmask * bitmask)
       [inline],  [static]
       Convert libnuma bitmask bitmask into hwloc CPU set cpuset. This
       function may be used after calling many numa_ functions that use a
       struct bitmask as an output parameter.

   static struct bitmask * hwloc_cpuset_to_linux_libnuma_bitmask
       (hwloc_topology_t topology, hwloc_const_cpuset_t cpuset) [static]
       Convert hwloc CPU set cpuset into the returned libnuma bitmask. The
       returned bitmask should later be freed with numa_bitmask_free.

       This function may be used before calling many numa_ functions that use
       a struct bitmask as an input parameter.

       Returns:
           newly allocated struct bitmask.

   static int hwloc_nodeset_from_linux_libnuma_bitmask (hwloc_topology_t
       topology, hwloc_nodeset_t nodeset, const struct bitmask * bitmask)
       [inline],  [static]
       Convert libnuma bitmask bitmask into hwloc NUMA node set nodeset. This
       function may be used after calling many numa_ functions that use a
       struct bitmask as an output parameter.

   static struct bitmask * hwloc_nodeset_to_linux_libnuma_bitmask
       (hwloc_topology_t topology, hwloc_const_nodeset_t nodeset) [static]
       Convert hwloc NUMA node set nodeset into the returned libnuma bitmask.
       The returned bitmask should later be freed with numa_bitmask_free.

       This function may be used before calling many numa_ functions that use
       a struct bitmask as an input parameter.

       Returns:
           newly allocated struct bitmask.

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

Version 1.11.1                  Thu Oct 15 2015
                                           hwlocality_linux_libnuma_bitmask(3)

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