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Edit File : types.h \| Size : 3.63 KB
// -- C++ -- // Copyright (C) 2007-2018 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 */ Back

Edit File : types.h | Size : 3.63 KB

// -*- C++ -*-

// Copyright (C) 2007-2018 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 */

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