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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc4/] [libstdc++-v3/] [include/] [parallel/] [types.h] - Rev 519
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// -*- C++ -*- // Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the terms // of the GNU General Public License as published by the Free Software // Foundation; either version 3, or (at your option) any later // version. // This library is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. /** @file parallel/types.h * @brief Basic types and typedefs. * This file is a GNU parallel extension to the Standard C++ Library. */ // Written by Johannes Singler and Felix Putze. #ifndef _GLIBCXX_PARALLEL_TYPES_H #define _GLIBCXX_PARALLEL_TYPES_H 1 #include <cstdlib> #include <limits> #include <tr1/cstdint> namespace __gnu_parallel { // Enumerated types. /// Run-time equivalents for the compile-time tags. enum _Parallelism { /// Not parallel. sequential, /// Parallel unbalanced (equal-sized chunks). parallel_unbalanced, /// Parallel balanced (work-stealing). parallel_balanced, /// Parallel with OpenMP dynamic load-balancing. parallel_omp_loop, /// Parallel with OpenMP static load-balancing. parallel_omp_loop_static, /// Parallel with OpenMP taskqueue construct. parallel_taskqueue }; /// Strategies for run-time algorithm selection: // force_sequential, force_parallel, heuristic. enum _AlgorithmStrategy { heuristic, force_sequential, force_parallel }; /// Sorting algorithms: // multi-way mergesort, quicksort, load-balanced quicksort. enum _SortAlgorithm { MWMS, QS, QS_BALANCED }; /// Merging algorithms: // bubblesort-alike, loser-tree variants, enum __sentinel. enum _MultiwayMergeAlgorithm { LOSER_TREE }; /// Partial sum algorithms: recursive, linear. enum _PartialSumAlgorithm { RECURSIVE, LINEAR }; /// Sorting/merging algorithms: sampling, __exact. enum _SplittingAlgorithm { SAMPLING, EXACT }; /// Find algorithms: // growing blocks, equal-sized blocks, equal splitting. enum _FindAlgorithm { GROWING_BLOCKS, CONSTANT_SIZE_BLOCKS, EQUAL_SPLIT }; /** * @brief Unsigned integer to index __elements. * The total number of elements for each algorithm must fit into this type. */ typedef uint64_t _SequenceIndex; /** * @brief Unsigned integer to index a thread number. * The maximum thread number (for each processor) must fit into this type. */ typedef uint16_t _ThreadIndex; // XXX atomics interface? /// Longest compare-and-swappable integer type on this platform. typedef int64_t _CASable; /// Number of bits of _CASable. static const int _CASable_bits = std::numeric_limits<_CASable>::digits; /// ::_CASable with the right half of bits set to 1. static const _CASable _CASable_mask = ((_CASable(1) << (_CASable_bits / 2)) - 1); } #endif /* _GLIBCXX_PARALLEL_TYPES_H */