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Hardware Locality (hwloc)
PR-737-20250925.0822.gite8f69c77f
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18 #ifndef HWLOC_GLIBC_SCHED_H
19 #define HWLOC_GLIBC_SCHED_H
22 #include "hwloc/helper.h"
26 #if !defined _GNU_SOURCE || (!defined _SCHED_H && !defined _SCHED_H_) || (!defined CPU_SETSIZE && !defined sched_priority)
27 #error Please make sure to include sched.h before including glibc-sched.h, and define _GNU_SOURCE before any inclusion of sched.h
36 #ifdef HWLOC_HAVE_CPU_SET
59 static __hwloc_inline
int
61 cpu_set_t *schedset,
size_t schedsetsize)
65 CPU_ZERO_S(schedsetsize, schedset);
67 CPU_SET_S(cpu, schedsetsize, schedset);
72 assert(schedsetsize ==
sizeof(cpu_set_t));
74 CPU_SET(cpu, schedset);
90 static __hwloc_inline
int
92 const cpu_set_t *schedset,
size_t schedsetsize)
100 count = CPU_COUNT_S(schedsetsize, schedset);
103 if (CPU_ISSET_S(cpu, schedsetsize, schedset)) {
114 assert(schedsetsize ==
sizeof(cpu_set_t));
115 for(cpu=0; cpu<CPU_SETSIZE; cpu++)
116 if (CPU_ISSET(cpu, schedset))
hwloc_const_bitmap_t hwloc_const_cpuset_t
A non-modifiable hwloc_cpuset_t.
Definition: hwloc.h:164
struct hwloc_topology * hwloc_topology_t
Topology context.
Definition: hwloc.h:778
int hwloc_cpuset_from_glibc_sched_affinity(hwloc_topology_t topology, hwloc_cpuset_t hwlocset, const cpu_set_t *schedset, size_t schedsetsize)
Convert glibc sched affinity CPU set schedset into hwloc CPU set.
Definition: glibc-sched.h:91
#define hwloc_bitmap_foreach_end()
End of loop macro iterating on a bitmap.
Definition: bitmap.h:457
#define hwloc_bitmap_foreach_begin(id, bitmap)
Loop macro iterating on bitmap bitmap.
Definition: bitmap.h:443
hwloc_bitmap_t hwloc_cpuset_t
A CPU set is a bitmap whose bits are set according to CPU physical OS indexes.
Definition: hwloc.h:162
void hwloc_bitmap_zero(hwloc_bitmap_t bitmap)
Empty the bitmap bitmap.
int hwloc_bitmap_set(hwloc_bitmap_t bitmap, unsigned id)
Add index id in bitmap bitmap.
int hwloc_cpuset_to_glibc_sched_affinity(hwloc_topology_t topology, hwloc_const_cpuset_t hwlocset, cpu_set_t *schedset, size_t schedsetsize)
Convert hwloc CPU set toposet into glibc sched affinity CPU set schedset.
Definition: glibc-sched.h:60