Deprecations

Deprecated in Kokkos 5.x

Deprecated in Kokkos 5.0

  • KOKKOS_ATTRIBUTE_NODISCARD

    • replacement: none

    • Not intended for non-internal use.

  • {Owning,Observing}RawPtr

    • replacement: none

    • Not intended for non-internal use.

  • Nested OpenMP parallel usage without nested OpenMP enabled

    • replacement: none

    • Avoids using a buggy code path when compiled without deprecated code.

  • OpenMP instance creation inside of OpenMP parallel regions

    • replacement: none

    • Avoids partition_space aborting when the number of threads for a partition is 0.

  • Random_XorShift{64,1024}_Pool::init

    • replacmement: none

    • Not intended for non-internal use.

  • [const_]where_expression

    • replacement: none

    • Does not align with std::simd interface.

  • View::HostMirror

    • replacement: View::host_mirror_type

    • naming style consistency

  • {DynRankView,OffsetView,View}::scalar_array_type

    • replacement: {DynRankView,OffsetView,View}::data_type

    • Only relevant for certain external partial specializations of {DynRankView, OffsetView, View} with the pre Kokkos 5 View implementation. Equal to data_type in most cases.

  • {DynRankView,OffsetView,View}::const_scalar_array_type

    • replacement: {DynRankView,OffsetView,View}::const_data_type

    • Only relevant for certain external partial specializations of {DynRankView, OffsetView, View} with the pre Kokkos 5 View implementation. Equal to const_data_type in most cases.

  • {DynRankView,OffsetView,View}::non_const_scalar_array_type

    • replacement: {DynRankView,OffsetView,View}::non_const_data_type

    • Only relevant for certain external partial specializations of {DynRankView, OffsetView, View} with the pre Kokkos 5 View implementation. Equal to non_const_data_type in most cases.

  • {DynRankView,OffsetView,View}::array_type

    • replacement: {DynRankView,OffsetView,View}::type

    • array is an extremely outdated reference to View.

  • DynamicView::array_type

    • replacement: DynamicView::uniform_type

    • consistency with View

  • ErrorReporter::getCapacity

    • replacement: ErrorReporter::capacity

    • naming style consistency

  • ErrorReporter::getNumReports

    • replacement: ErrorReporter::num_reports

    • naming style consistency

  • ErrorReporter::getNumReportAttempts

    • replacement: ErrorReporter::num_report_attempts

    • naming style consistency

  • ErrorReporter::getReports

    • replacement: ErrorReporter::get_reports

    • naming style consistency

Deprecated in Kokkos 4.x

Deprecated in Kokkos 4.7

  • KOKKOS_MEMORY_ALIGNMENT[_THRESHOLD]

    • replacement: none

    • Not intended for non-internal use.

  • Kokkos::MemoryManaged

    • replacement: none

    • Unneeded due to redundancy with default memory trait and confusing use when requesting unmanaged views with MemoryManaged

  • KOKKOS_NONTEMPORAL_PREFETCH_{LOAD,STORE}

    • replacement: none

    • Not intended for non-internal use.

Deprecated in Kokkos 4.6

  • StaticCrsGraph moved to Kokkos Kernels

    • replacement: KokkosSparse::StaticCrsGraph

    • aligns better with functionality provided by KokkosKernels.

  • native_simd and native_simd_mask types

    • replacement: simd and simd_mask

    • alignment with the C++ standard

  • Makefile support

    • replacement: CMake

    • reducing maintenance burden for a little-used build system

  • Direct access to d_view and h_view members in DualView

    • replacement: view_host() and view_device()

    • enforcing invariants in DualView, e.g., consistency between the two View instances referenced

Deprecated in Kokkos 4.5

  • Tasking interface: BasicFuture, TaskSingle, TaskPriority, task_spawn, host_spawn, respawn, when_all, wait

    • replacement: none

    • unused, limited implementation

  • HPX::HPX::is_asynchronous(HPX const & = HPX())

    • replacement: none

    • unused, conformity of execution spaces

  • OpenMP::is_asynchronous(OpenMP const& = OpenMP())

    • replacement: none

    • unused, conformity of execution spaces

  • atomic_query_version

    • replacement: none

    • no known use case

  • atomic_assign()
  • atomic_increment()
  • atomic_decrement()
  • atomic_compare_exchange_strong()

Deprecated in Kokkos 4.4

  • is_layouttiled

    • replacement: none

    • unused

  • layout_iterate_type_selector

    • replacement: none

    • only useful internally

  • Array<T, N, Proxy>

    • replacement: none

    • alignment with std::array

  • HPX::HPX(instance_mode mode)

    • replacement: explicit HPX(instance_mode mode)

    • execution space instance constructors should be explicit

  • HPX::HPX(hpx::execution::experimental::unique_any_sender<> &&sender)

    • replacement: explicit HPX::HPX(hpx::execution::experimental::unique_any_sender<> &&sender)

    • execution space instance constructors should be explicit

  • OpenMP::OpenMP(int pool_size)

    • replacement: explicit OpenMP::OpenMP(int pool_size)

    • execution space instance constructors should be explicit

  • Serial::Serial(NewInstance)

    • replacement: explicit Serial::Serial(NewInstance)

    • execution space instance constructors should be explicit

  • ChunkSize::ChunkSize(int value)

    • replacement: explicit ChunkSize::ChunkSize(int value)

    • ChunkSize should be constructed explicitly

  • pair<T, void>

    • replacement: none

    • the specialization is not documented, does not follow the standard library, it is not tested and has no known usage

Deprecated in Kokkos 4.3

  • Experimental::swap

    • replacement: kokkos_swap

    • avoiding ambiguities due to ADL

  • ExecutionSpace::in_parallel

    • replacement: KOKKOS_IF_ON_HOST/KOKKOS_IF_ON_DEVICE partly provide similar behavior

    • inconsistent implementation, limited use

  • Cuda::device_arch()

    • replacement: none

    • uniformity between execution spaces

  • Cuda::detect_device_count()

    • replacement: num_devices()

    • uniformity between execution spaces

  • Cuda::detect_device_arch()

    • replacement: none

    • uniformity between execution spaces

  • HIP::detect_device_count()

    • replacement: num_devices()

    • uniformity between execution spaces

  • RangePolicy::set(ChunkSize chunksize)

    • replacement: RangePolicy::set_chunk_size(int chunk_size)

    • ChunkSize was the only extra parameter usable with RangePolicy::set()

  • InitializationSettings::set_num_devices, InitializationSettings::has_num_devices, InitializationSettings::get_num_devices

    • replacement: num_devices

    • changes in InitializationSettings made these superfluous

  • InitializationSettings::set_skip_devices, InitializationSettings::has_skip_devices, InitializationSettings::get_skip_devices

    • replacement: KOKKOS_VISIBLE_DEVICES

    • changes in InitializationSettings made these superfluous

Deprecated in Kokkos 4.2

  • Cuda::Cuda(cudaStream_t stream, bool manage_stream)

    • replacement: Cuda::Cuda(cudaStream_t stream)

    • constructing a Cuda execution space instance should always use an externally managed cudaStream object

  • HIP::HIP(hipStream_t stream, bool manage_stream)

    • replacement HIP::HIP(hipStream_t stream)

    • constructing a HIP execution space instance should always use an externally managed hipStream object

  • vector

    • replacement: none

    • non-standard behavior, doesn’t work well with Kokkos concepts

  • HostSpace::HostSpace(AllocationMechanism)

    • replacement: HostSpace::HostSpace()

    • AllocationMechanism is unused, operator new with alignment is used unconditionally

  • SIMD math functions in the Kokkos::Experimental namespace

    • replacement: SIMD math function in the Kokkos namespace

    • issues with ADL, consistency with other math function overloads

Deprecated in Kokkos 4.1

  • Default constructor for BinSort, BinOp1D, and BinOp3D

    • replacement: none

    • the default constructors created invalid, unusable objects

  • View::Rank

    • replacement: View::rank()

    • undocumented, redundant due to existence of View::rank()

  • View::subview<MemoryTraits>(...)

    • replacement: View::subview(...)

    • not useful, unused

Deprecated in Kokkos 4.0

  • CudaUVMSpace::available()

    • replacement: SharedSpace

    • not portable, would always return true

  • Complex volatile overloads

    • replacement: none

    • no need for using volatile overloads

  • pair volatile overloads

    • replacement: none

    • no need for using volatile overloads

  • ScratchMemorySpace::align(const IntType& size)

    • replacement: none

    • unused, not useful

  • static ExecutionSpace::concurrency()

    • replacement: non-static ExecutionSpace::concurrency() member function

    • concurrency is a property of an execution space instance, not of its type