hwlocality_glibc_sched3
Interoperability with glibc sched affinity
Usage
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.
Releases
9 releases since Debian 6.0 (Squeeze); the text changed 8 times.