Tpetra_Details_DefaultTypes.hpp

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#ifndef TPETRA_DETAILS_DEFAULTTYPES_HPP
#define TPETRA_DETAILS_DEFAULTTYPES_HPP

#include "TpetraCore_config.h"
#include "KokkosClassic_DefaultNode_config.h"
#include "KokkosCompat_ClassicNodeAPI_Wrapper.hpp"

namespace Tpetra {

namespace Details {

namespace DefaultTypes {
#if defined(HAVE_TPETRA_INST_DOUBLE)
  using scalar_type = double;
#elif defined(HAVE_TPETRA_INST_FLOAT)
  using scalar_type = float;
#else
#  error "Tpetra: No scalar types in the set {float, double} have been enabled."
#endif

  using local_ordinal_type = int;

#if defined(HAVE_TPETRA_INST_INT_LONG_LONG)
    using global_ordinal_type = long long;
#elif defined(HAVE_TPETRA_INST_INT_INT)
    using global_ordinal_type = int;
#elif defined(HAVE_TPETRA_INST_INT_LONG)
    using global_ordinal_type = long;
#elif defined(HAVE_TPETRA_INST_INT_UNSIGNED_LONG)
    using global_ordinal_type = unsigned long;
#elif defined(HAVE_TPETRA_INST_INT_UNSIGNED)
    using global_ordinal_type = unsigned;
#else
    #error "Tpetra: No global ordinal types in the set {int, long long, long, unsigned long, unsigned} have been enabled."
#endif

#if defined(HAVE_TPETRA_DEFAULTNODE_CUDAWRAPPERNODE)
  using execution_space = ::Kokkos::Cuda;
#elif defined(HAVE_TPETRA_DEFAULTNODE_OPENMPWRAPPERNODE)
  using execution_space = ::Kokkos::OpenMP;
#elif defined(HAVE_TPETRA_DEFAULTNODE_THREADSWRAPPERNODE)
  using execution_space = ::Kokkos::Threads;
#elif defined(HAVE_TPETRA_DEFAULTNODE_SERIALWRAPPERNODE)
  using execution_space = ::Kokkos::Serial;
#else
#    error "No default Tpetra Node type specified.  Please set the CMake option Tpetra_DefaultNode to a valid Node type."
#endif

  using node_type = ::Kokkos::Compat::KokkosDeviceWrapperNode<execution_space>;

  template<class ExecutionSpace>
  using comm_buffer_memory_space =
#ifdef KOKKOS_ENABLE_CUDA
    typename std::conditional<
      std::is_same<typename ExecutionSpace::execution_space, Kokkos::Cuda>::value,
      Kokkos::CudaSpace,
      typename ExecutionSpace::memory_space>::type;
#else
    typename ExecutionSpace::memory_space;
#endif // KOKKOS_ENABLE_CUDA

} // namespace DefaultTypes

} // namespace Details

} // namespace Tpetra

#endif // TPETRA_DETAILS_DEFAULTTYPES_HPP