/usr/include/TiledArray/expressions/unary_engine.h is in libtiledarray-dev 0.4.4-1.
This file is owned by root:root, with mode 0o644.
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* This file is a part of TiledArray.
* Copyright (C) 2014 Virginia Tech
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Justus Calvin
* Department of Chemistry, Virginia Tech
*
* unary_engine.h
* Apr 1, 2014
*
*/
#ifndef TILEDARRAY_EXPRESSIONS_UNARY_ENGINE_H__INCLUDED
#define TILEDARRAY_EXPRESSIONS_UNARY_ENGINE_H__INCLUDED
#include <TiledArray/expressions/expr_engine.h>
#include <TiledArray/dist_eval/unary_eval.h>
namespace TiledArray {
namespace expressions {
// Forward declarations
template <typename> class UnaryExpr;
template <typename Arg, template <typename, typename, bool> class Op>
struct UnaryEngineTrait {
// Argument typedefs
typedef Arg argument_type; ///< The argument expression engine type
// Operational typedefs
typedef typename EngineTrait<Arg>::eval_type value_type; ///< The result tile type
typedef typename TiledArray::detail::eval_trait<value_type>::type eval_type; ///< Evaluation tile type
typedef Op<eval_type, typename EngineTrait<Arg>::eval_type, EngineTrait<Arg>::consumable> op_type; ///< The tile operation type
typedef typename EngineTrait<Arg>::scalar_type scalar_type; ///< Tile scalar type
typedef typename argument_type::policy policy; ///< The result policy type
typedef TiledArray::detail::DistEval<value_type, policy> dist_eval_type; ///< The distributed evaluator type
// Meta data typedefs
typedef typename policy::size_type size_type; ///< Size type
typedef typename policy::trange_type trange_type; ///< Tiled range type
typedef typename policy::shape_type shape_type; ///< Shape type
typedef typename policy::pmap_interface pmap_interface; ///< Process map interface type
static const bool consumable = true;
static const unsigned int leaves = EngineTrait<Arg>::leaves;
};
template <typename Derived>
class UnaryEngine : ExprEngine<Derived> {
public:
// Class hierarchy typedefs
typedef UnaryEngine<Derived> UnaryEngine_; ///< This class type
typedef ExprEngine<Derived> ExprEngine_; ///< Base class type
// Argument typedefs
typedef typename EngineTrait<Derived>::argument_type argument_type; ///< The argument expression engine type
// Operational typedefs
typedef typename EngineTrait<Derived>::value_type value_type; ///< The result tile type
typedef typename EngineTrait<Derived>::scalar_type scalar_type; ///< Tile scalar type
typedef typename EngineTrait<Derived>::op_type op_type; ///< The tile operation type
typedef typename EngineTrait<Derived>::policy policy; ///< The result policy type
typedef typename EngineTrait<Derived>::dist_eval_type dist_eval_type; ///< The distributed evaluator type
// Meta data typedefs
typedef typename EngineTrait<Derived>::size_type size_type; ///< Size type
typedef typename EngineTrait<Derived>::trange_type trange_type; ///< Tiled range type
typedef typename EngineTrait<Derived>::shape_type shape_type; ///< Shape type
typedef typename EngineTrait<Derived>::pmap_interface pmap_interface; ///< Process map interface type
static const bool consumable = true;
static const unsigned int leaves = argument_type::leaves;
protected:
// Import base class variables to this scope
using ExprEngine_::world_;
using ExprEngine_::vars_;
using ExprEngine_::perm_;
using ExprEngine_::trange_;
using ExprEngine_::shape_;
using ExprEngine_::pmap_;
using ExprEngine_::permute_tiles_;
argument_type arg_; ///< The argument
private:
// Not allowed
UnaryEngine(const UnaryEngine_&);
UnaryEngine_& operator=(const UnaryEngine_&);
public:
template <typename D>
UnaryEngine(const UnaryExpr<D>& expr) :
ExprEngine_(), arg_(expr.arg())
{ }
// Pull base class functions into this class.
using ExprEngine_::derived;
using ExprEngine_::vars;
/// Set the variable list for this expression
/// This function will set the variable list for this expression and its
/// children such that the number of permutations is minimized.
/// \param target_vars The target variable list for this expression
void perm_vars(const VariableList& target_vars) {
TA_ASSERT(permute_tiles_);
vars_ = target_vars;
if(arg_.vars() != target_vars)
arg_.perm_vars(target_vars);
}
/// Initialize the variable list of this expression
/// \param target_vars The target variable list for this expression
void init_vars(const VariableList& target_vars) {
arg_.init_vars(target_vars);
perm_vars(target_vars);
}
/// Initialize the variable list of this expression
void init_vars() {
arg_.init_vars();
vars_ = arg_.vars();
}
/// Initialize result tensor structure
/// This function will initialize the permutation, tiled range, and shape
/// for the left-hand, right-hand, and result tensor.
/// \param target_vars The target variable list for the result tensor
void init_struct(const VariableList& target_vars) {
arg_.init_struct(ExprEngine_::vars());
ExprEngine_::init_struct(target_vars);
}
/// Initialize result tensor distribution
/// This function will initialize the world and process map for the result
/// tensor.
/// \param world The world were the result will be distributed
/// \param pmap The process map for the result tensor tiles
void init_distribution(World* world,
const std::shared_ptr<pmap_interface>& pmap)
{
arg_.init_distribution(world, pmap);
ExprEngine_::init_distribution(world, arg_.pmap());
}
/// Non-permuting tiled range factory function
/// \return The result tiled range
trange_type make_trange() const { return arg_.trange(); }
/// Permuting tiled range factory function
/// \param perm The permutation to be applied to the tiled range
/// \return The result shape
trange_type make_trange(const Permutation& perm) const {
return perm ^ arg_.trange();
}
/// Construct the distributed evaluator for this expression
/// \return The distributed evaluator that will evaluate this expression
dist_eval_type make_dist_eval() const {
typedef TiledArray::detail::UnaryEvalImpl<typename argument_type::dist_eval_type,
typename Derived::op_type, typename dist_eval_type::policy> impl_type;
// Construct left and right distributed evaluators
const typename argument_type::dist_eval_type arg = arg_.make_dist_eval();
// Construct the distributed evaluator type
std::shared_ptr<impl_type> pimpl(
new impl_type(arg, *world_, trange_, shape_, pmap_, perm_,
ExprEngine_::make_op()));
return dist_eval_type(pimpl);
}
/// Expression print
/// \param os The output stream
/// \param target_vars The target variable list for this expression
void print(ExprOStream os, const VariableList& target_vars) const {
ExprEngine_::print(os, target_vars);
os.inc();
arg_.print(os, vars_);
os.dec();
}
}; // class UnaryEngine
} // namespace expressions
} // namespace TiledArray
#endif // TILEDARRAY_EXPRESSIONS_UNARY_ENGINE_H__INCLUDED
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