232 lines
7.6 KiB
C++
232 lines
7.6 KiB
C++
/*
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//@HEADER
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// ************************************************************************
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//
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// Kokkos v. 3.0
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// Copyright (2020) 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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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// 3. Neither the name of the Corporation nor the names of the
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY NTESS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NTESS OR THE
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Questions? Contact Christian R. Trott (crtrott@sandia.gov)
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//
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// ************************************************************************
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//@HEADER
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*/
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#include <TestStdAlgorithmsCommon.hpp>
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#include <std_algorithms/Kokkos_BeginEnd.hpp>
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#include <std_algorithms/Kokkos_ModifyingSequenceOperations.hpp>
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#include <utility>
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#include <algorithm>
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namespace Test {
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namespace stdalgos {
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namespace RemoveIf {
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namespace KE = Kokkos::Experimental;
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template <class ValueType>
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struct UnifDist;
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template <>
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struct UnifDist<int> {
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using dist_type = std::uniform_int_distribution<int>;
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std::mt19937 m_gen;
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dist_type m_dist;
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UnifDist() : m_dist(-100, 100) { m_gen.seed(1034343); }
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int operator()() { return m_dist(m_gen); }
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};
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template <class ViewType>
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void fill_view(ViewType dest_view, const std::string& name) {
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using value_type = typename ViewType::value_type;
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using exe_space = typename ViewType::execution_space;
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const std::size_t ext = dest_view.extent(0);
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using aux_view_t = Kokkos::View<value_type*, exe_space>;
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aux_view_t aux_view("aux_view", ext);
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auto v_h = create_mirror_view(Kokkos::HostSpace(), aux_view);
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if (name == "empty") {
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// no op
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}
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else if (name == "one-element-a") {
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v_h(0) = static_cast<value_type>(1);
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}
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else if (name == "one-element-b") {
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v_h(0) = static_cast<value_type>(2);
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}
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else if (name == "two-elements-a") {
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v_h(0) = static_cast<value_type>(1);
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v_h(1) = static_cast<value_type>(2);
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}
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else if (name == "two-elements-b") {
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v_h(0) = static_cast<value_type>(2);
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v_h(1) = static_cast<value_type>(-1);
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}
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else if (name == "small-a") {
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for (std::size_t i = 0; i < ext; ++i) {
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v_h(i) = static_cast<value_type>(i + 1);
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}
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}
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else if (name == "small-b") {
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for (std::size_t i = 0; i < ext; ++i) {
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if (i % 2 == 0) {
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v_h(i) = static_cast<value_type>(22);
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} else {
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v_h(i) = static_cast<value_type>(-12);
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}
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}
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}
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else if (name == "medium" || name == "large") {
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UnifDist<value_type> randObj;
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for (std::size_t i = 0; i < ext; ++i) {
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v_h(i) = randObj();
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}
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}
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else {
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throw std::runtime_error("invalid choice");
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}
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Kokkos::deep_copy(aux_view, v_h);
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CopyFunctor<aux_view_t, ViewType> F1(aux_view, dest_view);
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Kokkos::parallel_for("copy", dest_view.extent(0), F1);
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}
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template <class ViewTypeData, class ViewTypeTest, class MyItResult,
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class PredicateType>
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void verify_data(ViewTypeData view_data_h, ViewTypeTest view_test,
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MyItResult my_result, PredicateType pred) {
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// run std::remove_if
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auto std_result =
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std::remove_if(KE::begin(view_data_h), KE::end(view_data_h), pred);
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// check that returned iterators are correct
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const std::size_t std_diff = std_result - KE::begin(view_data_h);
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const std::size_t my_diff = my_result - KE::begin(view_test);
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EXPECT_TRUE(std_diff == my_diff);
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// check the actual data after algo has been applied
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auto view_test_h = create_host_space_copy(view_test);
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for (std::size_t i = 0; i < my_diff; ++i) {
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EXPECT_TRUE(view_test_h(i) == view_data_h[i]);
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// std::cout << "i= " << i << " "
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// << "mine: " << view_test_h(i) << " "
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// << "std: " << view_data_h(i)
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// << '\n';
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}
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}
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std::string value_type_to_string(int) { return "int"; }
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std::string value_type_to_string(double) { return "double"; }
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template <class Tag, class ValueType, class InfoType>
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void run_single_scenario(const InfoType& scenario_info) {
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const auto name = std::get<0>(scenario_info);
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const std::size_t view_ext = std::get<1>(scenario_info);
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// std::cout << "remove_if: " << name << ", " << view_tag_to_string(Tag{})
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// << ", " << value_type_to_string(ValueType()) << std::endl;
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using pred_type = IsEvenFunctor<ValueType>;
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pred_type remove_if_even;
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{
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auto view = create_view<ValueType>(Tag{}, view_ext, "remove_if_view");
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fill_view(view, name);
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// make host copy BEFORE running algo
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auto data_h = create_host_space_copy(view);
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auto rit = KE::remove_if(exespace(), KE::begin(view), KE::end(view),
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remove_if_even);
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verify_data(data_h, view, rit, remove_if_even);
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}
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{
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auto view = create_view<ValueType>(Tag{}, view_ext, "remove_if_view");
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fill_view(view, name);
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// make host copy BEFORE running algo
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auto data_h = create_host_space_copy(view);
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auto rit = KE::remove_if("label", exespace(), KE::begin(view),
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KE::end(view), remove_if_even);
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verify_data(data_h, view, rit, remove_if_even);
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}
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{
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auto view = create_view<ValueType>(Tag{}, view_ext, "remove_if_view");
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fill_view(view, name);
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// make host copy BEFORE running algo
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auto data_h = create_host_space_copy(view);
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auto rit = KE::remove_if(exespace(), view, remove_if_even);
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verify_data(data_h, view, rit, remove_if_even);
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}
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{
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auto view = create_view<ValueType>(Tag{}, view_ext, "remove_if_view");
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fill_view(view, name);
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// make host copy BEFORE running algo
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auto data_h = create_host_space_copy(view);
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auto rit = KE::remove_if("label", exespace(), view, remove_if_even);
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verify_data(data_h, view, rit, remove_if_even);
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}
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Kokkos::fence();
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}
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template <class Tag, class ValueType>
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void run_all_scenarios() {
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const std::map<std::string, std::size_t> scenarios = {
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{"empty", 0}, {"one-element-a", 1}, {"one-element-b", 1},
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{"two-elements-a", 2}, {"two-elements-b", 2}, {"small-a", 9},
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{"small-b", 13}, {"medium", 23103}, {"large", 101513}};
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for (const auto& it : scenarios) {
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run_single_scenario<Tag, ValueType>(it);
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}
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}
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TEST(std_algorithms_mod_seq_ops, remove_if) {
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run_all_scenarios<DynamicTag, int>();
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run_all_scenarios<StridedThreeTag, int>();
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}
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} // namespace RemoveIf
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} // namespace stdalgos
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} // namespace Test
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