inclusive_scan¶
Header File: Kokkos_StdAlgorithms.hpp
namespace Kokkos{
namespace Experimental{
//
// overload set A
//
template <class ExecutionSpace, class InputIteratorType, class OutputIteratorType>
OutputIteratorType inclusive_scan(const ExecutionSpace& exespace, (1)
InputIteratorType first_from,
InputIteratorType last_from,
OutputIteratorType first_dest);
template <class ExecutionSpace, class InputIteratorType, class OutputIteratorType>
OutputIteratorType inclusive_scan(const std::string& label, (2)
const ExecutionSpace& exespace,
InputIteratorType first_from,
InputIteratorType last_from,
OutputIteratorType first_dest);
template <
class ExecutionSpace,
class DataType1, class... Properties1,
class DataType2, class... Properties2>
auto inclusive_scan(const ExecutionSpace& exespace, (3)
const ::Kokkos::View<DataType1, Properties1...>& view_from,
const ::Kokkos::View<DataType2, Properties2...>& view_dest);
template <
class ExecutionSpace,
class DataType1, class... Properties1,
class DataType2, class... Properties2>
auto inclusive_scan(const std::string& label, const ExecutionSpace& exespace, (4)
const ::Kokkos::View<DataType1, Properties1...>& view_from,
const ::Kokkos::View<DataType2, Properties2...>& view_dest);
//
// overload set B
//
template <
class ExecutionSpace, class InputIteratorType,
class OutputIteratorType, class BinaryOpType
>
OutputIteratorType inclusive_scan(const ExecutionSpace& exespace, (5)
InputIteratorType first_from,
InputIteratorType last_from,
OutputIteratorType first_dest,
BinaryOpType bin_op);
template <
class ExecutionSpace, class InputIteratorType,
class OutputIteratorType, class BinaryOpType
>
OutputIteratorType inclusive_scan(const std::string& label, (6)
const ExecutionSpace& exespace,
InputIteratorType first_from,
InputIteratorType last_from,
OutputIteratorType first_dest,
BinaryOpType bin_op);
template <
class ExecutionSpace,
class DataType1, class... Properties1,
class DataType2, class... Properties2,
class BinaryOpType>
auto inclusive_scan(const ExecutionSpace& exespace, (7)
const ::Kokkos::View<DataType1, Properties1...>& view_from,
const ::Kokkos::View<DataType2, Properties2...>& view_dest,
BinaryOpType bin_op);
template <
class ExecutionSpace, class DataType1, class... Properties1,
class DataType2, class... Properties2,
class BinaryOpType>
auto inclusive_scan(const std::string& label, const ExecutionSpace& exespace, (8)
const ::Kokkos::View<DataType1, Properties1...>& view_from,
const ::Kokkos::View<DataType2, Properties2...>& view_dest,
BinaryOpType bin_op);
//
// overload set C
//
template <
class ExecutionSpace,
class InputIteratorType, class OutputIteratorType,
class BinaryOpType, class ValueType
>
OutputIteratorType inclusive_scan(const ExecutionSpace& exespace, (9)
InputIteratorType first_from,
InputIteratorType last_from,
OutputIteratorType first_dest,
BinaryOpType bin_op,
ValueType init_value);
template <
class ExecutionSpace, class InputIteratorType,
class OutputIteratorType, class BinaryOpType, class ValueType
>
OutputIteratorType inclusive_scan(const std::string& label, (10)
const ExecutionSpace& exespace,
InputIteratorType first_from,
InputIteratorType last_from,
OutputIteratorType first_dest,
BinaryOpType bin_op,
ValueType init_value);
template <
class ExecutionSpace,
class DataType1, class... Properties1,
class DataType2, class... Properties2,
class BinaryOpType, class ValueType>
auto inclusive_scan(const ExecutionSpace& exespace, (11)
const ::Kokkos::View<DataType1, Properties1...>& view_from,
const ::Kokkos::View<DataType2, Properties2...>& view_dest,
BinaryOpType bin_op,
ValueType init_value);
template <
class ExecutionSpace,
class DataType1, class... Properties1,
class DataType2, class... Properties2,
class BinaryOpType, class ValueType>
auto inclusive_scan(const std::string& label, const ExecutionSpace& exespace, (12)
const ::Kokkos::View<DataType1, Properties1...>& view_from,
const ::Kokkos::View<DataType2, Properties2...>& view_dest,
BinaryOpType bin_op,
ValueType init_value);
} //end namespace Experimental
} //end namespace Kokkos
Description¶
1,2,3,4: computes an inclusive prefix scan over the range [first_from, last_from) (1,2) or for view_from (3,4) using the binary op bin_op to combine two elements, and writes the results to the range beginning at first_dest (1,2) or to view_dest (3,4).
5,6,7,8: computes an inclusive prefix scan over the range [first_from, last_from) (5,6) or view_from (7,8) using the binary op bin_op to combine two elements, and writes the results to the range beginning at first_dest (5,6) or to view_dest (7,8).
9,10,11,12: computes an inclusive prefix scan over the range [first_from, last_from) (9,10) or view_from (11,12) using the binary functor bin_op to combine two elements and init as the initial value, and writes the results to the range beginning at first_dest (9,10) or to view_dest (11,12).
Inclusive means that the i-th input element is included in the i-th sum.
Parameters and Requirements¶exespace, first_from, first_last, first_dest, view_from, view_dest, bin_op:
same as in exclusive_scan
label:
used to name the implementation kernels for debugging purposes
for 1,5,9 the default string is: “Kokkos::inclusive_scan_iterator_api_default”
for 3,7,11 the default string is: “Kokkos::inclusive_scan_view_api_default”
Iterator to the element after the last element written.
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