173 lines
4.4 KiB
C++
173 lines
4.4 KiB
C++
//@HEADER
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// ************************************************************************
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//
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// Kokkos v. 4.0
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// Copyright (2022) National Technology & Engineering
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// Solutions of Sandia, LLC (NTESS).
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Part of Kokkos, under the Apache License v2.0 with LLVM Exceptions.
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// See https://kokkos.org/LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//@HEADER
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#ifndef KOKKOS_ALGORITHMS_UNITTESTS_TEST_STD_ALGOS_HELPERS_FUNCTORS_HPP
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#define KOKKOS_ALGORITHMS_UNITTESTS_TEST_STD_ALGOS_HELPERS_FUNCTORS_HPP
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#include <Kokkos_Core.hpp>
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#include <type_traits>
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namespace Test {
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namespace stdalgos {
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template <class ViewTypeFrom, class ViewTypeTo>
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struct CopyFunctor {
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ViewTypeFrom m_view_from;
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ViewTypeTo m_view_to;
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CopyFunctor() = delete;
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CopyFunctor(const ViewTypeFrom view_from, const ViewTypeTo view_to)
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: m_view_from(view_from), m_view_to(view_to) {}
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KOKKOS_INLINE_FUNCTION
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void operator()(int i) const { m_view_to(i) = m_view_from(i); }
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};
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template <class ViewTypeFrom, class ViewTypeTo>
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struct CopyFunctorRank2 {
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ViewTypeFrom m_view_from;
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ViewTypeTo m_view_to;
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CopyFunctorRank2() = delete;
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CopyFunctorRank2(const ViewTypeFrom view_from, const ViewTypeTo view_to)
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: m_view_from(view_from), m_view_to(view_to) {}
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KOKKOS_INLINE_FUNCTION
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void operator()(int k) const {
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const auto i = k / m_view_from.extent(1);
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const auto j = k % m_view_from.extent(1);
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m_view_to(i, j) = m_view_from(i, j);
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}
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};
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template <class ItTypeFrom, class ViewTypeTo>
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struct CopyFromIteratorFunctor {
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ItTypeFrom m_it_from;
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ViewTypeTo m_view_to;
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CopyFromIteratorFunctor(const ItTypeFrom it_from, const ViewTypeTo view_to)
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: m_it_from(it_from), m_view_to(view_to) {}
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KOKKOS_INLINE_FUNCTION
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void operator()(int) const { m_view_to() = *m_it_from; }
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};
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template <class ValueType>
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struct IncrementElementWiseFunctor {
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KOKKOS_INLINE_FUNCTION
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void operator()(ValueType& val) const { ++val; }
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};
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template <class ViewType>
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struct FillZeroFunctor {
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ViewType m_view;
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KOKKOS_INLINE_FUNCTION
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void operator()(int index) const {
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m_view(index) = static_cast<typename ViewType::value_type>(0);
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}
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KOKKOS_INLINE_FUNCTION
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FillZeroFunctor(ViewType viewIn) : m_view(viewIn) {}
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};
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template <class ValueType>
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struct NoOpNonMutableFunctor {
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KOKKOS_INLINE_FUNCTION
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void operator()(const ValueType& val) const { (void)val; }
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};
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template <class ViewType>
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struct AssignIndexFunctor {
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ViewType m_view;
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AssignIndexFunctor(ViewType view) : m_view(view) {}
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KOKKOS_INLINE_FUNCTION
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void operator()(int i) const { m_view(i) = typename ViewType::value_type(i); }
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};
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template <class ValueType>
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struct IsEvenFunctor {
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static_assert(std::is_integral_v<ValueType>,
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"IsEvenFunctor uses operator%, so ValueType must be int");
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KOKKOS_INLINE_FUNCTION
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bool operator()(const ValueType val) const { return (val % 2 == 0); }
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};
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template <class ValueType>
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struct IsPositiveFunctor {
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KOKKOS_INLINE_FUNCTION
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bool operator()(const ValueType val) const { return (val > 0); }
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};
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template <class ValueType>
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struct IsNegativeFunctor {
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KOKKOS_INLINE_FUNCTION
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bool operator()(const ValueType val) const { return (val < 0); }
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};
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template <class ValueType>
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struct NotEqualsZeroFunctor {
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KOKKOS_INLINE_FUNCTION
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bool operator()(const ValueType val) const { return val != 0; }
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};
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template <class ValueType>
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struct EqualsValFunctor {
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const ValueType m_value;
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EqualsValFunctor(ValueType value) : m_value(value) {}
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KOKKOS_INLINE_FUNCTION
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bool operator()(const ValueType val) const { return val == m_value; }
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};
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template <class ValueType1, class ValueType2 = ValueType1>
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struct CustomLessThanComparator {
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KOKKOS_INLINE_FUNCTION
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bool operator()(const ValueType1& a, const ValueType2& b) const {
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return a < b;
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}
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KOKKOS_INLINE_FUNCTION
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CustomLessThanComparator() {}
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};
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template <class ValueType>
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struct CustomEqualityComparator {
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KOKKOS_INLINE_FUNCTION
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bool operator()(const ValueType& a, const ValueType& b) const {
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return a == b;
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}
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};
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template <class ValueType1, class ValueType2 = ValueType1>
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struct IsEqualFunctor {
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KOKKOS_INLINE_FUNCTION
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bool operator()(const ValueType1& a, const ValueType2& b) const {
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return (a == b);
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}
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};
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} // namespace stdalgos
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} // namespace Test
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#endif
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