hwlocality_glibc_sched(3) Library Functions Manual hwlocality_glibc_sched(3)
NAME
hwlocality_glibc_sched - Interoperability with glibc sched affinity
SYNOPSIS
Functions
int hwloc_cpuset_to_glibc_sched_affinity (hwloc_topology_t topology,
hwloc_const_cpuset_t hwlocset, cpu_set_t *schedset, size_t
schedsetsize)
int hwloc_cpuset_from_glibc_sched_affinity (hwloc_topology_t topology,
hwloc_cpuset_t hwlocset, const cpu_set_t *schedset, size_t
schedsetsize)
Detailed Description
This interface offers ways to convert between hwloc cpusets and glibc
cpusets such as those manipulated by sched_getaffinity() or
pthread_attr_setaffinity_np().
Note
Topology topology must match the current machine.
Function Documentation
int hwloc_cpuset_from_glibc_sched_affinity (hwloc_topology_t topology,
hwloc_cpuset_t hwlocset, const cpu_set_t * schedset, size_t
schedsetsize) [inline]
Convert glibc sched affinity CPU set schedset into hwloc CPU set. This
function may be used before calling sched_setaffinity or any other
function that takes a cpu_set_t as input parameter.
schedsetsize should be sizeof(cpu_set_t) unless schedset was
dynamically allocated with CPU_ALLOC
Returns
0 on success.
-1 with errno set to ENOMEM if some internal reallocation failed.
int hwloc_cpuset_to_glibc_sched_affinity (hwloc_topology_t topology,
hwloc_const_cpuset_t hwlocset, cpu_set_t * schedset, size_t
schedsetsize) [inline]
Convert hwloc CPU set toposet into glibc sched affinity CPU set
schedset. This function may be used before calling sched_setaffinity or
any other function that takes a cpu_set_t as input parameter.
schedsetsize should be sizeof(cpu_set_t) unless schedset was
dynamically allocated with CPU_ALLOC
Returns
0.
Author
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the source code.
Hardware Locality (hwloc) Version 2.12.0 hwlocality_glibc_sched(3)
hwloc 2.12.0 - Generated Thu May 8 15:32:36 CDT 2025