Kokkos Core Kernels Package Version of the Day
Kokkos_hwloc.hpp
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44
45#ifndef KOKKOS_HWLOC_HPP
46#define KOKKOS_HWLOC_HPP
47
48#include <Kokkos_Macros.hpp>
49
50#include <utility>
51
52namespace Kokkos {
53
66namespace hwloc {
67
69bool available();
70
76
82
86
87} /* namespace hwloc */
88} /* namespace Kokkos */
89
90//----------------------------------------------------------------------------
91//----------------------------------------------------------------------------
92// Internal functions for binding persistent spawned threads.
93
94namespace Kokkos {
95namespace hwloc {
96
106unsigned thread_mapping(const char* const label, const bool allow_async,
107 unsigned& thread_count, unsigned& use_numa_count,
108 unsigned& use_cores_per_numa,
109 std::pair<unsigned, unsigned> threads_coord[]);
110
120std::pair<unsigned, unsigned> get_this_thread_coordinate();
121
123bool bind_this_thread(const std::pair<unsigned, unsigned>);
124
127
132unsigned bind_this_thread(const unsigned coordinate_count,
133 std::pair<unsigned, unsigned> coordinate[]);
134
137
138} /* namespace hwloc */
139} /* namespace Kokkos */
140
141//----------------------------------------------------------------------------
142//----------------------------------------------------------------------------
143
144#endif /* #define KOKKOS_HWLOC_HPP */
bool bind_this_thread(const std::pair< unsigned, unsigned >)
Bind the current thread to a core.
unsigned get_available_cores_per_numa()
Query number of available cores per NUMA regions. This will be less than the hardware capacity if the...
unsigned get_available_numa_count()
Query number of available NUMA regions. This will be less than the hardware capacity if the MPI proce...
unsigned thread_mapping(const char *const label, const bool allow_async, unsigned &thread_count, unsigned &use_numa_count, unsigned &use_cores_per_numa, std::pair< unsigned, unsigned > threads_coord[])
Recommend mapping of threads onto cores.
bool unbind_this_thread()
Unbind the current thread back to the original process binding.
bool available()
Query if hwloc is available.
std::pair< unsigned, unsigned > get_this_thread_coordinate()
Query core-coordinate of the current thread with respect to the core_topology.
bool can_bind_threads()
Can hwloc bind threads?
unsigned get_available_threads_per_core()
Query number of available "hard" threads per core; i.e., hyperthreads.