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lammps/lib/kokkos/core/src/Kokkos_Core.hpp
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Kokkos_Core.hpp
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/*
//@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
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// 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 H. Carter Edwards (hcedwar@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_HAVE_SERIAL )
#include <Kokkos_Serial.hpp>
#endif
#if defined( KOKKOS_HAVE_OPENMP )
#include <Kokkos_OpenMP.hpp>
#endif
#if defined( KOKKOS_HAVE_PTHREAD )
#include <Kokkos_Threads.hpp>
#endif
#if defined( KOKKOS_HAVE_CUDA )
#include <Kokkos_Cuda.hpp>
#endif
#include <Kokkos_Pair.hpp>
#include <Kokkos_Array.hpp>
#include <Kokkos_View.hpp>
#include <Kokkos_Vectorization.hpp>
#include <Kokkos_Atomic.hpp>
#include <Kokkos_hwloc.hpp>
#ifdef KOKKOS_HAVE_CXX11
#include <Kokkos_Complex.hpp>
#endif
//----------------------------------------------------------------------------
namespace Kokkos {
struct InitArguments {
int num_threads;
int num_numa;
int device_id;
InitArguments() {
num_threads = -1;
num_numa = -1;
device_id = -1;
}
};
void initialize(int& narg, char* arg[]);
void initialize(const InitArguments& args = InitArguments());
/** \brief Finalize the spaces that were initialized via Kokkos::initialize */
void finalize();
/** \brief Finalize all known execution spaces */
void finalize_all();
void fence();
} // namespace Kokkos
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
namespace Kokkos {
namespace Experimental {
/* 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 Experimental
} // namespace Kokkos
#if defined( KOKKOS_USING_EXPERIMENTAL_VIEW )
namespace Kokkos {
using Kokkos::Experimental::kokkos_malloc ;
using Kokkos::Experimental::kokkos_realloc ;
using Kokkos::Experimental::kokkos_free ;
}
#else
namespace Kokkos {
namespace Impl {
// should only by used by kokkos_malloc and kokkos_free
struct MallocHelper
{
static void increment_ref_count( AllocationTracker const & tracker )
{
tracker.increment_ref_count();
}
static void decrement_ref_count( AllocationTracker const & tracker )
{
tracker.decrement_ref_count();
}
};
} // namespace Impl
/* Allocate memory from a memory space.
* The allocation is tracked in Kokkos memory tracking system, so
* leaked memory can be identified.
*/
template< class Arg = DefaultExecutionSpace>
void* kokkos_malloc(const std::string label, size_t count) {
if(count == 0) return NULL;
typedef typename Arg::memory_space MemorySpace;
Impl::AllocationTracker tracker = MemorySpace::allocate_and_track(label,count);;
Impl::MallocHelper::increment_ref_count( tracker );
return tracker.alloc_ptr();
}
template< class Arg = DefaultExecutionSpace>
void* kokkos_malloc(const size_t& count) {
return kokkos_malloc<Arg>("DefaultLabel",count);
}
/* Free memory from a memory space.
*/
template< class Arg = DefaultExecutionSpace>
void kokkos_free(const void* ptr) {
typedef typename Arg::memory_space MemorySpace;
typedef typename MemorySpace::allocator allocator;
Impl::AllocationTracker tracker = Impl::AllocationTracker::find<allocator>(ptr);
if (tracker.is_valid()) {
Impl::MallocHelper::decrement_ref_count( tracker );
}
}
template< class Arg = DefaultExecutionSpace>
void* kokkos_realloc(const void* old_ptr, size_t size) {
if(old_ptr == NULL)
return kokkos_malloc<Arg>(size);
typedef typename Arg::memory_space MemorySpace;
typedef typename MemorySpace::allocator allocator;
Impl::AllocationTracker tracker = Impl::AllocationTracker::find<allocator>(old_ptr);
tracker.reallocate(size);
return tracker.alloc_ptr();
}
} // namespace Kokkos
#endif
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
#endif
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