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Hardware Locality (hwloc)
1.4.1
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Functions | |
| static inline void | hwloc_distributev (hwloc_topology_t topology, hwloc_obj_t *root, unsigned n_roots, hwloc_cpuset_t *cpuset, unsigned n, unsigned until) |
| static inline void | hwloc_distribute (hwloc_topology_t topology, hwloc_obj_t root, hwloc_cpuset_t *cpuset, unsigned n, unsigned until) |
| static inline void * | hwloc_alloc_membind_policy_nodeset (hwloc_topology_t topology, size_t len, hwloc_const_nodeset_t nodeset, hwloc_membind_policy_t policy, int flags) |
| static inline void * | hwloc_alloc_membind_policy (hwloc_topology_t topology, size_t len, hwloc_const_cpuset_t cpuset, hwloc_membind_policy_t policy, int flags) |
| static inline void* hwloc_alloc_membind_policy | ( | hwloc_topology_t | topology, |
| size_t | len, | ||
| hwloc_const_cpuset_t | cpuset, | ||
| hwloc_membind_policy_t | policy, | ||
| int | flags | ||
| ) | [static] |
Allocate some memory on the memory nodes near given cpuset cpuset.
This is similar to hwloc_alloc_membind_policy_nodeset, but for a given cpuset.
| static inline void* hwloc_alloc_membind_policy_nodeset | ( | hwloc_topology_t | topology, |
| size_t | len, | ||
| hwloc_const_nodeset_t | nodeset, | ||
| hwloc_membind_policy_t | policy, | ||
| int | flags | ||
| ) | [static] |
Allocate some memory on the given nodeset nodeset.
This is similar to hwloc_alloc_membind except that it is allowed to change the current memory binding policy, thus providing more binding support, at the expense of changing the current state.
| static inline void hwloc_distribute | ( | hwloc_topology_t | topology, |
| hwloc_obj_t | root, | ||
| hwloc_cpuset_t * | cpuset, | ||
| unsigned | n, | ||
| unsigned | until | ||
| ) | [static] |
| static inline void hwloc_distributev | ( | hwloc_topology_t | topology, |
| hwloc_obj_t * | roots, | ||
| unsigned | n_roots, | ||
| hwloc_cpuset_t * | cpuset, | ||
| unsigned | n, | ||
| unsigned | until | ||
| ) | [static] |
Distribute n items over the topology under root.
Distribute n items over the topology under roots.
Array cpuset will be filled with n cpusets recursively distributed linearly over the topology under root, down to depth until (which can be INT_MAX to distribute down to the finest level).
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.
root object to have a CPU set.This is the same as hwloc_distribute, but takes an array of roots instead of just one root.
roots objects to have a CPU set.
1.7.6.1