139 lines
4.6 KiB
C++
139 lines
4.6 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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#include <TestStdAlgorithmsCommon.hpp>
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namespace Test {
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namespace stdalgos {
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namespace TeamReplaceIf {
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namespace KE = Kokkos::Experimental;
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template <class ValueType>
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struct GreaterThanValueFunctor {
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ValueType m_val;
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KOKKOS_INLINE_FUNCTION
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GreaterThanValueFunctor(ValueType val) : m_val(val) {}
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KOKKOS_INLINE_FUNCTION
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bool operator()(ValueType val) const { return (val > m_val); }
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};
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template <class ViewType, class ValueType>
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struct TestFunctorA {
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ViewType m_view;
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ValueType m_threshold;
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ValueType m_newVal;
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int m_apiPick;
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TestFunctorA(const ViewType view, ValueType threshold, ValueType newVal,
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int apiPick)
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: m_view(view),
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m_threshold(threshold),
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m_newVal(newVal),
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m_apiPick(apiPick) {}
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template <class MemberType>
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KOKKOS_INLINE_FUNCTION void operator()(const MemberType& member) const {
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const auto myRowIndex = member.league_rank();
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auto myRowView = Kokkos::subview(m_view, myRowIndex, Kokkos::ALL());
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GreaterThanValueFunctor predicate(m_threshold);
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if (m_apiPick == 0) {
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KE::replace_if(member, KE::begin(myRowView), KE::end(myRowView),
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predicate, m_newVal);
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} else if (m_apiPick == 1) {
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KE::replace_if(member, myRowView, predicate, m_newVal);
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}
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}
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};
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template <class LayoutTag, class ValueType>
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void test_A(std::size_t numTeams, std::size_t numCols, int apiId) {
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/* description:
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use a rank-2 view randomly filled with values,
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and run a team-level replace_if where the values strictly greater
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than a threshold are replaced with a new value.
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*/
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const auto threshold = static_cast<ValueType>(151);
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const auto newVal = static_cast<ValueType>(1);
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// -----------------------------------------------
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// prepare data
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// -----------------------------------------------
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// create a view in the memory space associated with default exespace
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// with as many rows as the number of teams and fill it with random
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// values from an arbitrary range
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auto [dataView, cloneOfDataViewBeforeOp_h] =
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create_random_view_and_host_clone(
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LayoutTag{}, numTeams, numCols,
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Kokkos::pair<ValueType, ValueType>{5, 523}, "dataView");
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// -----------------------------------------------
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// launch kokkos kernel
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// -----------------------------------------------
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using space_t = Kokkos::DefaultExecutionSpace;
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Kokkos::TeamPolicy<space_t> policy(numTeams, Kokkos::AUTO());
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// use CTAD for functor
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TestFunctorA fnc(dataView, threshold, newVal, apiId);
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Kokkos::parallel_for(policy, fnc);
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// -----------------------------------------------
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// run cpp-std kernel
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// -----------------------------------------------
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Kokkos::View<ValueType**, Kokkos::HostSpace> stdDataView("stdDataView",
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numTeams, numCols);
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// ensure that we use the same data to run the std algo on
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for (std::size_t i = 0; i < dataView.extent(0); ++i) {
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for (std::size_t j = 0; j < dataView.extent(1); ++j) {
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stdDataView(i, j) = cloneOfDataViewBeforeOp_h(i, j);
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}
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}
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GreaterThanValueFunctor predicate(threshold);
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for (std::size_t i = 0; i < dataView.extent(0); ++i) {
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auto thisRow = Kokkos::subview(stdDataView, i, Kokkos::ALL());
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std::replace_if(KE::begin(thisRow), KE::end(thisRow), predicate, newVal);
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}
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// -----------------------------------------------
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// check
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// -----------------------------------------------
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auto dataViewAfterOp_h = create_host_space_copy(dataView);
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expect_equal_host_views(stdDataView, dataViewAfterOp_h);
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}
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template <class LayoutTag, class ValueType>
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void run_all_scenarios() {
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for (int numTeams : teamSizesToTest) {
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for (const auto& numCols : {0, 1, 2, 13, 101, 1444, 8153}) {
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for (int apiId : {0, 1}) {
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test_A<LayoutTag, ValueType>(numTeams, numCols, apiId);
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}
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}
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}
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}
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TEST(std_algorithms_replace_if_team_test, test) {
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run_all_scenarios<DynamicTag, double>();
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run_all_scenarios<StridedTwoRowsTag, int>();
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run_all_scenarios<StridedThreeRowsTag, unsigned>();
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}
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} // namespace TeamReplaceIf
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} // namespace stdalgos
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} // namespace Test
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