/usr/include/openturns/TBB.hxx is in libopenturns-dev 1.9-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 | // -*- C++ -*-
/**
* @brief This file supplies support for multithreading
*
* Copyright 2005-2017 Airbus-EDF-IMACS-Phimeca
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef OPENTURNS_TBB_HXX
#define OPENTURNS_TBB_HXX
#include <algorithm>
#include "openturns/OTprivate.hxx"
#include "openturns/OTconfig.hxx"
#ifdef OPENTURNS_HAVE_TBB
#ifdef OPENTURNS_TBB_NO_IMPLICIT_LINKAGE
# ifndef __TBB_NO_IMPLICIT_LINKAGE
# define __TBB_NO_IMPLICIT_LINKAGE 1
# endif
# ifndef __TBBMALLOC_NO_IMPLICIT_LINKAGE
# define __TBBMALLOC_NO_IMPLICIT_LINKAGE 1
# endif
#endif
#include <tbb/tbb.h>
#include "openturns/OTwindows.h"
#else /* OPENTURNS_HAVE_TBB */
#include "openturns/Exception.hxx"
// We redefine some TBB elements to simulate TBB availability through the code
// Those redefinitions are single threaded
namespace tbb
{
template <typename T>
class blocked_range
{
public:
typedef T value_type;
typedef std::size_t size_type;
blocked_range(value_type from, value_type to, size_type gs = 1)
: from_(from), to_(to), grainSize_(gs)
{
#ifdef DEBUG_BOUNDCHECKING
if (from_ > to_)
throw OT::InvalidArgumentException(HERE) << "Range is malformed (from > to) with from=" << from_
<< " and to=" << to;
if (grainSize_ < 1)
throw OT::InvalidArgumentException(HERE) << "Range is malformed (grainSize < 1) with grainSize=" << grainSize_;
#endif /* DEBUG_BOUNDCHECKING */
}
value_type begin() const
{
return from_;
}
value_type end() const
{
return to_;
}
size_type size() const
{
return size_t(to_ - from_);
}
size_type grainsize() const
{
return grainSize_;
}
private:
value_type from_;
value_type to_;
size_type grainSize_;
}; // end class blocked_range
template <typename RANGE, typename BODY>
void parallel_for( const RANGE & range, const BODY & body )
{
body( range );
}
template <typename RANGE, typename BODY>
void parallel_reduce( const RANGE & range, BODY & body )
{
body( range );
}
template <typename ITERATOR>
void parallel_sort( ITERATOR first, ITERATOR last )
{
std::stable_sort( first, last );
}
} // namespace tbb
#endif /* OPENTURNS_HAVE_TBB */
BEGIN_NAMESPACE_OPENTURNS
class OT_API TBB
{
public:
#ifndef SWIG // swig 1.3.40 fails to parse BlockedRange
#ifdef OPENTURNS_HAVE_TBB
typedef tbb::split Split;
#else /* OPENTURNS_HAVE_TBB */
struct Split {};
#endif /* OPENTURNS_HAVE_TBB */
template <typename T>
struct BlockedRange : public tbb::blocked_range<T>
{
typedef T value_type;
typedef typename tbb::blocked_range<T>::size_type size_type;
BlockedRange(value_type from, value_type to, size_type gs = 1) : tbb::blocked_range<T>(from, to, gs) {}
BlockedRange(const tbb::blocked_range<T> & range) : tbb::blocked_range<T>(range) {}
};
#endif // SWIG
template <typename BODY>
static inline
void ParallelFor( UnsignedInteger from, UnsignedInteger to, const BODY & body, std::size_t gs = 1 )
{
tbb::parallel_for( tbb::blocked_range<UnsignedInteger>( from, to, gs ), body );
}
template <typename BODY>
static inline
void ParallelReduce( UnsignedInteger from, UnsignedInteger to, BODY & body, std::size_t gs = 1)
{
tbb::parallel_reduce( tbb::blocked_range<UnsignedInteger>( from, to, gs ), body );
}
template <typename ITERATOR>
static inline
void ParallelSort( ITERATOR first, ITERATOR last )
{
tbb::parallel_sort( first, last );
}
static Bool IsAvailable();
static void Enable();
static void Disable();
private:
static void SetNumberOfThreads(const UnsignedInteger numberOfThreads);
friend struct TBB_init;
}; /* end class TBB */
/** This struct initializes all static members of TBB */
struct OT_API TBB_init
{
TBB_init();
~TBB_init();
}; /* end class TBB_init */
END_NAMESPACE_OPENTURNS
#endif /* OPENTURNS_TBB_HXX */
|