Reduce.hpp

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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
// Copyright (c) Lawrence Livermore National Security, LLC and other
// RAJA Project Developers. See top-level LICENSE and COPYRIGHT
// files for dates and other details. No copyright assignment is required
// to contribute to RAJA.
//
// SPDX-License-Identifier: (BSD-3-Clause)
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
 
#ifndef RAJA_policy_sequential_kernel_Reduce_HPP
#define RAJA_policy_sequential_kernel_Reduce_HPP
 
#include "RAJA/pattern/kernel.hpp"
 
namespace RAJA
{
 
namespace internal
{
 
//
// Executor that handles reductions for
//
template<template<typename...> class ReduceOperator,
         typename ParamId,
         typename... EnclosedStmts,
         typename Types>
struct StatementExecutor<
    statement::Reduce<seq_reduce, ReduceOperator, ParamId, EnclosedStmts...>,
    Types>
{
 
  template<typename Data>
  static RAJA_INLINE void exec(Data&& data)
  {
    // since a sequential reduction is a NOP, and the single thread always
    // has the reduced value, this is just a passthrough to the enclosed
    // statements
    execute_statement_list<camp::list<EnclosedStmts...>, Types>(data);
  }
};
 
 
}  // namespace internal
 
}  // end namespace RAJA
 
 
#endif /* RAJA_policy_sequential_kernel_Reduce_HPP */