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lammps/lib/kokkos/core/src/Kokkos_ROCm.hpp
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Kokkos_ROCm.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_ROCM_HPP
#define KOKKOS_ROCM_HPP
#include <Kokkos_Core_fwd.hpp>
#if defined( KOKKOS_ENABLE_ROCM )
#include <ROCm/hc_math_std.hpp>
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
#include <cstddef>
#include <iosfwd>
#include <Kokkos_HostSpace.hpp>
#include <Kokkos_ROCmSpace.hpp>
#include <ROCm/Kokkos_ROCm_Exec.hpp>
#include <Kokkos_ScratchSpace.hpp>
#include <Kokkos_Parallel.hpp>
#include <Kokkos_Layout.hpp>
#include <impl/Kokkos_Tags.hpp>
/*--------------------------------------------------------------------------*/
#include <hc.hpp>
#include <hc_am.hpp>
#include <amp_math.h>
#if defined( __HCC_ACCELERATOR__ )
using namespace ::Concurrency::precise_math ;
#endif
/*--------------------------------------------------------------------------*/
namespace Kokkos {
namespace Impl {
class ROCmExec ;
} // namespace Impl
} // namespace Kokkos
/*--------------------------------------------------------------------------*/
namespace Kokkos {
namespace Experimental {
/// \class ROCm
/// \brief Kokkos device for multicore processors in the host memory space.
class ROCm {
public:
//------------------------------------
//! \name Type declarations that all Kokkos devices must provide.
//@{
//! Tag this class as a kokkos execution space
typedef ROCm execution_space ;
typedef ROCmSpace memory_space ;
typedef Kokkos::Device<execution_space,memory_space> device_type;
typedef LayoutLeft array_layout ;
typedef HostSpace::size_type size_type ;
typedef ScratchMemorySpace< ROCm > scratch_memory_space ;
~ROCm() {}
ROCm();
// explicit ROCm( const int instance_id );
ROCm( ROCm && ) = default ;
ROCm( const ROCm & ) = default ;
ROCm & operator = ( ROCm && ) = default ;
ROCm & operator = ( const ROCm & ) = default ;
//@}
//------------------------------------
//! \name Functions that all Kokkos devices must implement.
//@{
KOKKOS_INLINE_FUNCTION static int in_parallel() {
#if defined( __HCC_ACCELERATOR__ )
return true;
#else
return false;
#endif
}
/** \brief Set the device in a "sleep" state. */
static bool sleep() ;
/** \brief Wake the device from the 'sleep' state. A noop for OpenMP. */
static bool wake() ;
/** \brief Wait until all dispatched functors complete. A noop for OpenMP. */
static void fence() ;
/// \brief Print configuration information to the given output stream.
static void print_configuration( std::ostream & , const bool detail = false );
/// \brief Free any resources being consumed by the device.
static void finalize() ;
/** \brief Initialize the device.
*
*/
struct SelectDevice {
int rocm_device_id ;
SelectDevice() : rocm_device_id(1) {}
explicit SelectDevice( int id ) : rocm_device_id( id+1 ) {}
};
int rocm_device() const { return m_device ; }
bool isAPU();
bool isAPU(int device);
static void initialize( const SelectDevice = SelectDevice());
static int is_initialized();
// static size_type device_arch();
// static size_type detect_device_count();
static int concurrency() ;
static const char* name();
private:
int m_device ;
};
}
} // namespace Kokkos
namespace Kokkos {
namespace Impl {
template<>
struct MemorySpaceAccess
< Kokkos::Experimental::ROCmSpace
, Kokkos::Experimental::ROCm::scratch_memory_space
>
{
enum { assignable = false };
enum { accessible = true };
enum { deepcopy = false };
};
template<>
struct VerifyExecutionCanAccessMemorySpace
< Kokkos::Experimental::ROCm::memory_space
, Kokkos::Experimental::ROCm::scratch_memory_space
>
{
enum { value = true };
KOKKOS_INLINE_FUNCTION static void verify( void ) { }
KOKKOS_INLINE_FUNCTION static void verify( const void * ) { }
};
template<>
struct VerifyExecutionCanAccessMemorySpace
< Kokkos::HostSpace
, Kokkos::Experimental::ROCm::scratch_memory_space
>
{
enum { value = false };
inline static void verify( void ) { Experimental::ROCmSpace::access_error(); }
inline static void verify( const void * p ) { Experimental::ROCmSpace::access_error(p); }
};
} // namespace Experimental
} // namespace Kokkos
#define threadIdx_x (hc_get_workitem_id(0))
#define threadIdx_y (hc_get_workitem_id(1))
#define threadIdx_z (hc_get_workitem_id(2))
#define blockIdx_x (hc_get_group_id(0))
#define blockIdx_y (hc_get_group_id(1))
#define blockIdx_z (hc_get_group_id(2))
#define blockDim_x (hc_get_group_size(0))
#define blockDim_y (hc_get_group_size(1))
#define blockDim_z (hc_get_group_size(2))
#define gridDim_x (hc_get_num_groups(0))
#define gridDim_y (hc_get_num_groups(1))
#define gridDim_z (hc_get_num_groups(2))
#include <ROCm/Kokkos_ROCm_Parallel.hpp>
#include <ROCm/Kokkos_ROCm_Task.hpp>
#endif
#endif
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