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Kokkos Core Kernels Package
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00001 /* 00002 //@HEADER 00003 // ************************************************************************ 00004 // 00005 // Kokkos: Manycore Performance-Portable Multidimensional Arrays 00006 // Copyright (2012) Sandia Corporation 00007 // 00008 // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation, 00009 // the U.S. Government retains certain rights in this software. 00010 // 00011 // Redistribution and use in source and binary forms, with or without 00012 // modification, are permitted provided that the following conditions are 00013 // met: 00014 // 00015 // 1. Redistributions of source code must retain the above copyright 00016 // notice, this list of conditions and the following disclaimer. 00017 // 00018 // 2. Redistributions in binary form must reproduce the above copyright 00019 // notice, this list of conditions and the following disclaimer in the 00020 // documentation and/or other materials provided with the distribution. 00021 // 00022 // 3. Neither the name of the Corporation nor the names of the 00023 // contributors may be used to endorse or promote products derived from 00024 // this software without specific prior written permission. 00025 // 00026 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY 00027 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00028 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 00029 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE 00030 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00031 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00032 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00033 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00034 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00035 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00036 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00037 // 00038 // Questions? Contact H. Carter Edwards (hcedwar@sandia.gov) 00039 // 00040 // ************************************************************************ 00041 //@HEADER 00042 */ 00043 00044 #ifndef KOKKOS_HWLOC_HPP 00045 #define KOKKOS_HWLOC_HPP 00046 00047 #include <utility> 00048 00049 namespace Kokkos { 00050 00063 namespace hwloc { 00064 00066 bool available(); 00067 00072 unsigned get_available_numa_count(); 00073 00078 unsigned get_available_cores_per_numa(); 00079 00081 unsigned get_available_threads_per_core(); 00082 00083 } /* namespace hwloc */ 00084 } /* namespace Kokkos */ 00085 00086 //---------------------------------------------------------------------------- 00087 //---------------------------------------------------------------------------- 00088 // Internal functions for binding persistent spawned threads. 00089 00090 namespace Kokkos { 00091 namespace hwloc { 00092 00102 unsigned thread_mapping( const char * const label , 00103 const bool allow_async , 00104 unsigned & thread_count , 00105 unsigned & use_numa_count , 00106 unsigned & use_cores_per_numa , 00107 std::pair<unsigned,unsigned> threads_coord[] ); 00108 00118 std::pair<unsigned,unsigned> get_this_thread_coordinate(); 00119 00121 bool bind_this_thread( const std::pair<unsigned,unsigned> ); 00122 00127 unsigned bind_this_thread( const unsigned coordinate_count , 00128 std::pair<unsigned,unsigned> coordinate[] ); 00129 00131 bool unbind_this_thread(); 00132 00133 } /* namespace hwloc */ 00134 } /* namespace Kokkos */ 00135 00136 //---------------------------------------------------------------------------- 00137 //---------------------------------------------------------------------------- 00138 00139 #endif /* #define KOKKOS_HWLOC_HPP */ 00140
1.7.6.1