hwlocality_helper_distribute(3) Hardware Locality (hwloc)
NAME
hwlocality_helper_distribute - Distributing items over a topology
SYNOPSIS
Enumerations
enum hwloc_distrib_flags_e { HWLOC_DISTRIB_FLAG_REVERSE }
Functions
static int hwloc_distrib (hwloc_topology_t topology, hwloc_obj_t *roots,
unsigned n_roots, hwloc_cpuset_t *set, unsigned n, int until,
unsigned long flags)
Detailed Description
Enumeration Type Documentation
enum hwloc_distrib_flags_e
Flags to be given to hwloc_distrib().
Enumerator
HWLOC_DISTRIB_FLAG_REVERSE
Distrib in reverse order, starting from the last objects.
Function Documentation
static int hwloc_distrib (hwloc_topology_t topology, hwloc_obj_t * roots,
unsigned n_roots, hwloc_cpuset_t * set, unsigned n, int until, unsigned
long flags) [inline], [static]
Distribute n items over the topology under roots. Array set will be
filled with n cpusets recursively distributed linearly over the topology
under objects roots, down to depth until (which can be INT_MAX to
distribute down to the finest level).
n_roots is usually 1 and roots only contains the topology root object so
as to distribute over the entire topology.
This is typically useful when an application wants to distribute n
threads over a machine, giving each of them as much private cache as
possible and keeping them locally in number order.
The caller may typically want to also call hwloc_bitmap_singlify() before
binding a thread so that it does not move at all.
flags should be 0 or a OR'ed set of hwloc_distrib_flags_e.
Note
This function requires the roots objects to have a CPU set.
Author
Generated automatically by Doxygen for Hardware Locality (hwloc) from the
source code.
Version 2.9.1 Tue Mar 28 2023 hwlocality_helper_distribute(3)
hwloc 2.9.1 - Generated Fri Apr 21 05:52:24 CDT 2023