hwlocality_windows(3) Hardware Locality (hwloc) hwlocality_windows(3)
NAME
hwlocality_windows - Windows-specific helpers
SYNOPSIS
Functions
int hwloc_windows_get_nr_processor_groups (hwloc_topology_t topology,
unsigned long flags)
int hwloc_windows_get_processor_group_cpuset (hwloc_topology_t topology,
unsigned pg_index, hwloc_cpuset_t cpuset, unsigned long flags)
Detailed Description
These functions query Windows processor groups. These groups partition
the operating system into virtual sets of up to 64 neighbor PUs. Threads
and processes may only be bound inside a single group. Although Windows
processor groups may be exposed in the hwloc hierarchy as hwloc Groups,
they are also often merged into existing hwloc objects such as NUMA nodes
or Packages. This API provides explicit information about Windows
processor groups so that applications know whether binding to a large set
of PUs may fail because it spans over multiple Windows processor groups.
Function Documentation
int hwloc_windows_get_nr_processor_groups (hwloc_topology_t topology,
unsigned long flags)
Get the number of Windows processor groups. flags must be 0 for now.
Returns
at least 1 on success.
-1 on error, for instance if the topology does not match the current
system (e.g. loaded from another machine through XML).
int hwloc_windows_get_processor_group_cpuset (hwloc_topology_t topology,
unsigned pg_index, hwloc_cpuset_t cpuset, unsigned long flags)
Get the CPU-set of a Windows processor group. Get the set of PU included
in the processor group specified by pg_index. pg_index must be between 0
and the value returned by hwloc_windows_get_nr_processor_groups() minus
1.
flags must be 0 for now.
Returns
0 on success.
-1 on error, for instance if pg_index is invalid, or if the topology
does not match the current system (e.g. loaded from another machine
through XML).
Author
Generated automatically by Doxygen for Hardware Locality (hwloc) from the
source code.
Version 2.7.1 Sun Mar 20 2022 hwlocality_windows(3)
hwloc 2.7.1 - Generated Tue Jun 14 14:28:03 CDT 2022