/*
//@HEADER
// ************************************************************************
//
//                        Kokkos v. 2.0
//              Copyright (2014) Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact Christian R. Trott (crtrott@sandia.gov)
//
// ************************************************************************
//@HEADER
*/

#ifndef KOKKOS_CORE_HPP
#define KOKKOS_CORE_HPP

//----------------------------------------------------------------------------
// Include the execution space header files for the enabled execution spaces.

#include <Kokkos_Core_fwd.hpp>

#if defined( KOKKOS_ENABLE_SERIAL )
#include <Kokkos_Serial.hpp>
#endif

#if defined( KOKKOS_ENABLE_OPENMP )
#include <Kokkos_OpenMP.hpp>
#endif

//#if defined( KOKKOS_ENABLE_OPENMPTARGET )
#include <Kokkos_OpenMPTarget.hpp>
#include <Kokkos_OpenMPTargetSpace.hpp>
//#endif

#if defined( KOKKOS_ENABLE_QTHREADS )
#include <Kokkos_Qthreads.hpp>
#endif

#if defined( KOKKOS_ENABLE_HPX )
#include <Kokkos_HPX.hpp>
#endif

#if defined( KOKKOS_ENABLE_THREADS )
#include <Kokkos_Threads.hpp>
#endif

#if defined( KOKKOS_ENABLE_CUDA )
#include <Kokkos_Cuda.hpp>
#endif

#if defined( KOKKOS_ENABLE_ROCM )
#include <Kokkos_ROCm.hpp>
#endif

#include <Kokkos_AnonymousSpace.hpp>
#include <Kokkos_Pair.hpp>
#include <Kokkos_MemoryPool.hpp>
#include <Kokkos_Array.hpp>
#include <Kokkos_View.hpp>
#include <Kokkos_Vectorization.hpp>
#include <Kokkos_Atomic.hpp>
#include <Kokkos_hwloc.hpp>
#include <Kokkos_Timer.hpp>
#include <Kokkos_TaskScheduler.hpp>

#include <Kokkos_Complex.hpp>

#include <Kokkos_CopyViews.hpp>
#include <functional>
#include <iosfwd>

//----------------------------------------------------------------------------

namespace Kokkos {

struct InitArguments {
  int num_threads;
  int num_numa;
  int device_id;
  int ndevices;
  int skip_device;
  bool disable_warnings;

  InitArguments( int nt = -1
               , int nn = -1
               , int dv = -1
               , bool dw = false
               )
    : num_threads{ nt }
    , num_numa{ nn }
    , device_id{ dv }
    , ndevices{ -1 }
    , skip_device{ 9999 }
    , disable_warnings{ dw }
  {}
};

void initialize(int& narg, char* arg[]);

void initialize(const InitArguments& args = InitArguments());

bool is_initialized() noexcept;

bool show_warnings() noexcept;

/** \brief  Finalize the spaces that were initialized via Kokkos::initialize */
void finalize();

/**
 * \brief Push a user-defined function to be called in
 *   Kokkos::finalize, before any Kokkos state is finalized.
 *
 * \warning Only call this after Kokkos::initialize, but before
 *   Kokkos::finalize.
 *
 * This function is the Kokkos analog to std::atexit.  If you call
 * this with a function f, then your function will get called when
 * Kokkos::finalize is called.  Specifically, it will be called BEFORE
 * Kokkos does any finalization.  This means that all execution
 * spaces, memory spaces, etc. that were initialized will still be
 * initialized when your function is called.
 *
 * Just like std::atexit, if you call push_finalize_hook in sequence
 * with multiple functions (f, g, h), Kokkos::finalize will call them
 * in reverse order (h, g, f), as if popping a stack.  Furthermore,
 * just like std::atexit, if any of your functions throws but does not
 * catch an exception, Kokkos::finalize will call std::terminate.
 */
void push_finalize_hook(std::function<void()> f);

/** \brief  Finalize all known execution spaces */
void finalize_all();

void fence();

/** \brief Print "Bill of Materials" */
void print_configuration( std::ostream & , const bool detail = false );

} // namespace Kokkos

//----------------------------------------------------------------------------
//----------------------------------------------------------------------------

namespace Kokkos {

/* Allocate memory from a memory space.
 * The allocation is tracked in Kokkos memory tracking system, so
 * leaked memory can be identified.
 */
template< class Space = typename Kokkos::DefaultExecutionSpace::memory_space >
inline
void * kokkos_malloc( const std::string & arg_alloc_label
                    , const size_t arg_alloc_size )
{
  typedef typename Space::memory_space MemorySpace ;
  return Impl::SharedAllocationRecord< MemorySpace >::
    allocate_tracked( MemorySpace() , arg_alloc_label , arg_alloc_size );
}

template< class Space = typename Kokkos::DefaultExecutionSpace::memory_space >
inline
void * kokkos_malloc( const size_t arg_alloc_size )
{
  typedef typename Space::memory_space MemorySpace ;
  return Impl::SharedAllocationRecord< MemorySpace >::
    allocate_tracked( MemorySpace() , "no-label" , arg_alloc_size );
}

template< class Space = typename Kokkos::DefaultExecutionSpace::memory_space >
inline
void kokkos_free( void * arg_alloc )
{
  typedef typename Space::memory_space MemorySpace ;
  return Impl::SharedAllocationRecord< MemorySpace >::
    deallocate_tracked( arg_alloc );
}

template< class Space = typename Kokkos::DefaultExecutionSpace::memory_space >
inline
void * kokkos_realloc( void * arg_alloc , const size_t arg_alloc_size )
{
  typedef typename Space::memory_space MemorySpace ;
  return Impl::SharedAllocationRecord< MemorySpace >::
    reallocate_tracked( arg_alloc , arg_alloc_size );
}

} // namespace Kokkos

namespace Kokkos {

/** \brief  ScopeGuard
 *  Some user scope issues have been identified with some Kokkos::finalize calls;
 *  ScopeGuard aims to correct these issues.
 *
 *  Two requirements for ScopeGuard: 
 *     if Kokkos::is_initialized() in the constructor, don't call Kokkos::initialize or Kokkos::finalize
 *     it is not copyable or assignable
 */

class ScopeGuard {
public:
  ScopeGuard ( int& narg, char* arg[] )
  {
    sg_init = false; 
    if ( ! Kokkos::is_initialized() ) { 
      initialize( narg, arg );
      sg_init = true;
    }
  }

  ScopeGuard ( const InitArguments& args = InitArguments() )
  {
    sg_init = false; 
    if ( ! Kokkos::is_initialized() ) { 
      initialize( args );
      sg_init = true;
    }
  }

  ~ScopeGuard( )
  {
    if ( Kokkos::is_initialized() && sg_init) { 
      finalize(); 
    }
  }

//private:
  bool sg_init;    

  ScopeGuard& operator=( const ScopeGuard& ) = delete;
  ScopeGuard( const ScopeGuard& ) = delete;

};

} // namespace Kokkos

#include <Kokkos_Crs.hpp>
#include <Kokkos_WorkGraphPolicy.hpp>

//----------------------------------------------------------------------------
//----------------------------------------------------------------------------

#endif

