transform¶
Header: <Kokkos_StdAlgorithms.hpp>
Overloads (1,2,9): applies the given unary operation to all elements in the range [first_from, last_from) stores the result in the range starting at first_to
Overloads (3,4,10): applies the given unary operation to all elements in the source view and stores the result in the dest view.
Overloads (5,6,11): applies the given binary operation to pair of elements from the ranges [first_from1, last_from1) and [first_from2, last_from2] and stores the result in range starting at first_to
Overloads (7,8,12): applies the given binary operation to pair of elements from the views source1, source2 and stores the result in dest view
Warning
This is currently inside the Kokkos::Experimental namespace.
template <
class ExecutionSpace, class InputIterator,
class OutputIterator, class UnaryOperation>
OutputIterator transform(const ExecutionSpace& exespace, (1)
InputIterator first_from, InputIterator last_from,
OutputIterator first_to,
UnaryOperation unary_op);
template <
class ExecutionSpace, class InputIterator,
class OutputIterator, class UnaryOperation>
OutputIterator transform(const std::string& label, (2)
const ExecutionSpace& exespace,
InputIterator first_from, InputIterator last_from,
OutputIterator first_to,
UnaryOperation unary_op);
template <
class ExecutionSpace,
class DataType1, class... Properties1,
class DataType2, class... Properties2,
class UnaryOperation
>
auto transform(const ExecutionSpace& exespace, (3)
const Kokkos::View<DataType1, Properties1...>& source,
Kokkos::View<DataType2, Properties2...>& dest,
UnaryOperation unary_op);
template <
class ExecutionSpace,
class DataType1, class... Properties1,
class DataType2, class... Properties2,
class UnaryOperation
>
auto transform(const std::string& label, const ExecutionSpace& exespace, (4)
const Kokkos::View<DataType1, Properties1...>& source,
Kokkos::View<DataType2, Properties2...>& dest,
UnaryOperation unary_op);
template <
class ExecutionSpace,
class InputIterator1, class InputIterator2, class OutputIterator,
class BinaryOperation
>
OutputIterator transform(const ExecutionSpace& exespace, (5)
InputIterator1 first_from1, InputIterator1 last_from1,
InputIterator2 first_from2, OutputIterator first_to,
BinaryOperation binary_op);
template <
class ExecutionSpace,
class InputIterator1, class InputIterator2, class OutputIterator,
class BinaryOperation
>
OutputIterator transform(const std::string& label, (6)
const ExecutionSpace& exespace,
InputIterator1 first_from1, InputIterator1 last_from1,
InputIterator2 first_from2, OutputIterator first_to,
BinaryOperation binary_op);
template <
class ExecutionSpace,
class DataType1, class... Properties1,
class DataType2, class... Properties2,
class DataType3, class... Properties3,
class BinaryOperation
>
auto transform(const ExecutionSpace& exespace, (7)
const Kokkos::View<DataType1, Properties1...>& source1,
const Kokkos::View<DataType2, Properties2...>& source2,
Kokkos::View<DataType3, Properties3...>& dest,
BinaryOperation binary_op);
template <
class ExecutionSpace,
class DataType1, class... Properties1,
class DataType2, class... Properties2,
class DataType3, class... Properties3,
class BinaryOperation
>
auto transform(const std::string& label, const ExecutionSpace& exespace, (8)
const Kokkos::View<DataType1, Properties1...>& source1,
const Kokkos::View<DataType2, Properties2...>& source2,
Kokkos::View<DataType3, Properties3...>& dest,
BinaryOperation binary_op);
Overload set accepting a team handle¶
Added in version 4.2.
template <
class TeamHandleType, class InputIterator,
class OutputIterator, class UnaryOperation>
KOKKOS_FUNCTION
OutputIterator transform(const TeamHandleType& teamHandle, (9)
InputIterator first_from,
InputIterator last_from,
OutputIterator first_to,
UnaryOperation unary_op);
template <
class TeamHandleType,
class DataType1, class... Properties1,
class DataType2, class... Properties2,
class UnaryOperation>
KOKKOS_FUNCTION
auto transform(const TeamHandleType& teamHandle, (10)
const ::Kokkos::View<DataType1, Properties1...>& source,
::Kokkos::View<DataType2, Properties2...>& dest,
UnaryOperation unary_op);
template <
class TeamHandleType, class InputIterator1,
class InputIterator2, class OutputIterator,
class BinaryOperation>
KOKKOS_FUNCTION
OutputIterator transform(const TeamHandleType& teamHandle, (11)
InputIterator1 first_from1,
InputIterator1 last_from1,
InputIterator2 first_from2,
OutputIterator first_to,
BinaryOperation binary_op);
template <
class TeamHandleType,
class DataType1, class... Properties1,
class DataType2, class... Properties2,
class DataType3, class... Properties3,
class BinaryOperation>
KOKKOS_FUNCTION
auto transform(const TeamHandleType& teamHandle, (12)
const ::Kokkos::View<DataType1, Properties1...>& source1,
const ::Kokkos::View<DataType2, Properties2...>& source2,
::Kokkos::View<DataType3, Properties3...>& dest,
BinaryOperation binary_op);
Parameters and Requirements¶
exespace: execution space instance
teamHandle: team handle instance given inside a parallel region when using a TeamPolicy
label: used to name the implementation kernels for debugging purposes
for 1,3,5,7, the default string is: “Kokkos::transform_iterator_api_default”
for 2,4,6,8, the default string is: “Kokkos::transform_view_api_default”
NOTE: overloads accepting a team handle do not use a label internally
first_from, last_from, first_from1, first_from2: ranges of elements to transform
must be random access iterators
must be valid ranges, i.e., first_from >= last_from, first_from1 >= last_from2
must be accessible from exespace or from the execution space associated with the team handle
first_to: beginning of the range to write to
must be a random access iterator
must be accessible from exespace or from the execution space associated with the team handle
source, source1, source2, dest: source and destination views
must be accessible from exespace or from the execution space associated with the team handle
Iterator to the element after the last element transformed.
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