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.
◆ hwloc_cpuset_from_glibc_sched_affinity()
static int hwloc_cpuset_from_glibc_sched_affinity |
( |
hwloc_topology_t |
topology, |
|
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hwloc_cpuset_t |
hwlocset, |
|
|
const cpu_set_t * |
schedset, |
|
|
size_t |
schedsetsize |
|
) |
| |
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inlinestatic |
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.
◆ hwloc_cpuset_to_glibc_sched_affinity()
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.