Files
lammps/lib/kokkos/algorithms/unit_tests/TestStdAlgorithmsModSeqOps.cpp
2022-05-05 11:44:47 -06:00

430 lines
14 KiB
C++

/*
//@HEADER
// ************************************************************************
//
// Kokkos v. 3.0
// Copyright (2020) National Technology & Engineering
// Solutions of Sandia, LLC (NTESS).
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY NTESS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NTESS OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact Christian R. Trott (crtrott@sandia.gov)
//
// ************************************************************************
//@HEADER
*/
#include <TestStdAlgorithmsCommon.hpp>
#include <std_algorithms/Kokkos_ModifyingSequenceOperations.hpp>
#include "std_algorithms/Kokkos_BeginEnd.hpp"
namespace KE = Kokkos::Experimental;
namespace Test {
namespace stdalgos {
struct std_algorithms_mod_seq_ops_test : std_algorithms_test {
public:
virtual void SetUp() {
Kokkos::parallel_for(m_static_view.extent(0),
AssignIndexFunctor<static_view_t>(m_static_view));
}
};
//----------------------------------------------------------------------------
TEST_F(std_algorithms_mod_seq_ops_test, copy) {
auto result = KE::copy(exespace(), KE::begin(m_static_view),
KE::end(m_static_view), KE::begin(m_strided_view));
EXPECT_EQ(KE::end(m_strided_view), result);
compare_views(m_static_view, m_strided_view);
auto result2 = KE::copy(exespace(), KE::begin(m_strided_view),
KE::end(m_strided_view), KE::begin(m_dynamic_view));
EXPECT_EQ(KE::end(m_dynamic_view), result2);
compare_views(m_dynamic_view, m_strided_view);
}
TEST_F(std_algorithms_mod_seq_ops_test, copy_view) {
EXPECT_EQ(KE::end(m_dynamic_view),
KE::copy(exespace(), m_static_view, m_dynamic_view));
compare_views(m_static_view, m_dynamic_view);
EXPECT_EQ(KE::end(m_strided_view),
KE::copy(exespace(), m_dynamic_view, m_strided_view));
compare_views(m_dynamic_view, m_strided_view);
}
TEST_F(std_algorithms_mod_seq_ops_test, copy_n) {
constexpr std::size_t n = 5;
view_host_space_t expected("copy_n_expected");
expected(0) = 0;
expected(1) = 1;
expected(2) = 2;
expected(3) = 3;
expected(4) = 4;
expected(5) = 0;
expected(6) = 0;
expected(7) = 0;
expected(8) = 0;
expected(9) = 0;
// pass iterators
auto first = KE::begin(m_static_view);
auto dest = KE::begin(m_dynamic_view);
EXPECT_EQ(dest + n, KE::copy_n(exespace(), first, n, dest));
compare_views(expected, m_dynamic_view);
// pass views
EXPECT_EQ(KE::begin(m_strided_view) + n,
KE::copy_n(exespace(), m_static_view, n, m_strided_view));
compare_views(expected, m_strided_view);
}
TEST_F(std_algorithms_mod_seq_ops_test, copy_backward) {
auto first = KE::begin(m_static_view);
auto last = KE::end(m_static_view);
auto dest = KE::end(m_dynamic_view);
// pass iterators
EXPECT_EQ(KE::begin(m_dynamic_view),
KE::copy_backward(exespace(), first, last, dest));
compare_views(m_static_view, m_dynamic_view);
// pass views
EXPECT_EQ(KE::begin(m_strided_view),
KE::copy_backward(exespace(), m_static_view, m_strided_view));
compare_views(m_static_view, m_strided_view);
}
TEST_F(std_algorithms_mod_seq_ops_test, reverse_copy) {
view_host_space_t expected("reverse_copy_expected");
expected(0) = 9;
expected(1) = 8;
expected(2) = 7;
expected(3) = 6;
expected(4) = 5;
expected(5) = 4;
expected(6) = 3;
expected(7) = 2;
expected(8) = 1;
expected(9) = 0;
auto first = KE::begin(m_static_view);
auto last = KE::end(m_static_view);
auto dest = KE::begin(m_dynamic_view);
EXPECT_EQ(KE::end(m_dynamic_view),
KE::reverse_copy(exespace(), first, last, dest));
compare_views(expected, m_dynamic_view);
EXPECT_EQ(KE::end(m_strided_view),
KE::reverse_copy(exespace(), m_static_view, m_strided_view));
compare_views(expected, m_strided_view);
}
TEST_F(std_algorithms_mod_seq_ops_test, fill) {
constexpr auto fill_value = 1.0;
view_host_space_t expected("fill_n_expected");
expected(0) = 0;
expected(1) = 0;
expected(2) = 0;
expected(3) = 0;
expected(4) = 0;
expected(5) = 0;
expected(6) = 0;
expected(7) = 0;
expected(8) = fill_value;
expected(9) = fill_value;
// pass iterators
KE::fill(exespace(), KE::begin(m_dynamic_view) + 8, KE::end(m_dynamic_view),
fill_value);
compare_views(expected, m_dynamic_view);
// pass view
KE::fill(exespace(), m_strided_view, fill_value);
verify_values(fill_value, m_strided_view);
}
TEST_F(std_algorithms_mod_seq_ops_test, fill_n) {
constexpr auto fill_n_value = 100.0;
constexpr auto fill_n_new_value = 200.0;
// fill all elements
// pass iterator
EXPECT_EQ(KE::end(m_static_view),
KE::fill_n(exespace(), KE::begin(m_static_view),
m_static_view.extent(0), fill_n_value));
verify_values(fill_n_value, m_static_view);
// pass view
EXPECT_EQ(KE::end(m_strided_view),
KE::fill_n(exespace(), m_strided_view, m_strided_view.extent(0),
fill_n_value));
verify_values(fill_n_value, m_strided_view);
// fill zero elements
// pass view
EXPECT_EQ(KE::begin(m_dynamic_view),
KE::fill_n(exespace(), m_dynamic_view, 0, fill_n_new_value));
// fill single element
// pass iterator
EXPECT_EQ(
KE::begin(m_static_view) + 1,
KE::fill_n(exespace(), KE::begin(m_static_view), 1, fill_n_new_value));
view_host_space_t expected("fill_n_expected");
expected(0) = fill_n_new_value;
expected(1) = fill_n_value;
expected(2) = fill_n_value;
expected(3) = fill_n_value;
expected(4) = fill_n_value;
expected(5) = fill_n_value;
expected(6) = fill_n_value;
expected(7) = fill_n_value;
expected(8) = fill_n_value;
expected(9) = fill_n_value;
compare_views(expected, m_static_view);
}
struct TransformFunctor {
KOKKOS_INLINE_FUNCTION
value_type operator()(const value_type& val) const {
(void)val;
return static_cast<value_type>(-1);
}
};
TEST_F(std_algorithms_mod_seq_ops_test, transform_from_fixture_unary_op) {
view_host_space_t gold_source("transform_expected");
gold_source(0) = 0;
gold_source(1) = 1;
gold_source(2) = 2;
gold_source(3) = 3;
gold_source(4) = 4;
gold_source(5) = 5;
gold_source(6) = 6;
gold_source(7) = 7;
gold_source(8) = 8;
gold_source(9) = 9;
// transform static view, store results in dynamic view
auto r1 = KE::transform(exespace(), KE::begin(m_static_view),
KE::end(m_static_view), KE::begin(m_dynamic_view),
TransformFunctor());
EXPECT_EQ(r1, KE::end(m_dynamic_view));
compare_views(gold_source, m_static_view);
verify_values(-1., m_dynamic_view);
// transform dynamic view, store results in strided view
auto r2 = KE::transform(exespace(), m_dynamic_view, m_strided_view,
TransformFunctor());
EXPECT_EQ(r2, KE::end(m_strided_view));
verify_values(-1., m_dynamic_view);
verify_values(-1., m_strided_view);
// transform strided view, store results in static view
auto r3 = KE::transform(exespace(), m_strided_view, m_static_view,
TransformFunctor());
EXPECT_EQ(r3, KE::end(m_static_view));
verify_values(-1., m_static_view);
verify_values(-1., m_strided_view);
}
struct TransformBinaryFunctor {
KOKKOS_INLINE_FUNCTION
value_type operator()(const value_type& val1, const value_type& val2) const {
return val1 + val2;
}
};
TEST_F(std_algorithms_mod_seq_ops_test, transform_from_fixture_binary_op) {
view_host_space_t expected("transform_expected");
expected(0) = 0;
expected(1) = 1;
expected(2) = 2;
expected(3) = 3;
expected(4) = 4;
expected(5) = 5;
expected(6) = 6;
expected(7) = 7;
expected(8) = 8;
expected(9) = 9;
auto r1 = KE::transform(exespace(), KE::begin(m_static_view),
KE::end(m_static_view), KE::begin(m_dynamic_view),
KE::begin(m_strided_view), TransformBinaryFunctor());
EXPECT_EQ(r1, KE::end(m_strided_view));
compare_views(expected, m_strided_view);
expected(0) = 0;
expected(1) = 2;
expected(2) = 4;
expected(3) = 6;
expected(4) = 8;
expected(5) = 10;
expected(6) = 12;
expected(7) = 14;
expected(8) = 16;
expected(9) = 18;
auto r2 = KE::transform("label", exespace(), m_static_view, m_strided_view,
m_dynamic_view, TransformBinaryFunctor());
EXPECT_EQ(r2, KE::end(m_dynamic_view));
compare_views(expected, m_dynamic_view);
}
constexpr value_type generated_value = 2.0;
struct GenerateFunctor {
KOKKOS_INLINE_FUNCTION
value_type operator()() const { return generated_value; }
};
// cuda illegal instruction error appears for this one:
// constexpr int generate_f() { return generated_value; }
TEST_F(std_algorithms_mod_seq_ops_test, generate) {
// view + functor
KE::generate(exespace(), m_static_view, GenerateFunctor());
verify_values(generated_value, m_static_view);
// iterators + functor
KE::generate(exespace(), KE::begin(m_strided_view), KE::end(m_strided_view),
GenerateFunctor());
verify_values(generated_value, m_strided_view);
}
TEST_F(std_algorithms_mod_seq_ops_test, generate_n) {
// iterator + functor
EXPECT_EQ(KE::end(m_static_view),
KE::generate_n(exespace(), KE::begin(m_static_view),
m_static_view.extent(0), GenerateFunctor()));
verify_values(generated_value, m_static_view);
// view + functor
EXPECT_EQ(KE::end(m_dynamic_view),
KE::generate_n(exespace(), m_dynamic_view, m_dynamic_view.extent(0),
GenerateFunctor()));
verify_values(generated_value, m_dynamic_view);
// view + functor, negative n
EXPECT_EQ(KE::begin(m_strided_view),
KE::generate_n(exespace(), m_strided_view, -1, GenerateFunctor()));
}
// -----------------
// test swap_ranges
// -----------------
template <class ViewType>
struct StdModOpsSwapRangesFillFunctorA {
ViewType m_view;
StdModOpsSwapRangesFillFunctorA(ViewType view) : m_view(view) {}
KOKKOS_INLINE_FUNCTION
void operator()(int i) const { m_view(i) = i; }
};
template <class ViewType>
struct StdModOpsSwapRangesFillFunctorB {
ViewType m_view;
StdModOpsSwapRangesFillFunctorB(ViewType view) : m_view(view) {}
KOKKOS_INLINE_FUNCTION
void operator()(int i) const { m_view(i) = 100 - i; }
};
template <class ViewType>
void test_swap_ranges(ViewType view) {
const auto ext = view.extent(0);
/* fill view_a */
auto FA = StdModOpsSwapRangesFillFunctorA<ViewType>(view);
Kokkos::parallel_for(ext, std::move(FA));
/* fill view_b */
using static_view_type = std_algorithms_test::static_view_t;
static_view_type viewB("viewB");
auto FB = StdModOpsSwapRangesFillFunctorB<static_view_type>(viewB);
Kokkos::parallel_for(ext, std::move(FB));
/* call swap_ranges */
auto first1 = KE::begin(view) + 2;
auto last1 = first1 + 4;
auto first2 = KE::begin(viewB) + 1;
auto r = KE::swap_ranges(exespace(), first1, last1, first2);
EXPECT_EQ(r, first2 + 4);
/* check VIEW_A */
static_view_type checkViewA("tmp");
using cp_func_a_t = CopyFunctor<ViewType, static_view_type>;
parallel_for(ext, cp_func_a_t(view, checkViewA));
auto cvA_h =
Kokkos::create_mirror_view_and_copy(Kokkos::HostSpace(), checkViewA);
EXPECT_TRUE(cvA_h(0) == 0);
EXPECT_TRUE(cvA_h(1) == 1);
EXPECT_TRUE(cvA_h(2) == 99);
EXPECT_TRUE(cvA_h(3) == 98);
EXPECT_TRUE(cvA_h(4) == 97);
EXPECT_TRUE(cvA_h(5) == 96);
EXPECT_TRUE(cvA_h(6) == 6);
EXPECT_TRUE(cvA_h(7) == 7);
EXPECT_TRUE(cvA_h(8) == 8);
EXPECT_TRUE(cvA_h(9) == 9);
/* check viewB */
static_view_type checkViewB("tmpB");
using cp_func_b_t = CopyFunctor<static_view_type, static_view_type>;
Kokkos::parallel_for(ext, cp_func_b_t(viewB, checkViewB));
auto cvB_h =
Kokkos::create_mirror_view_and_copy(Kokkos::HostSpace(), checkViewB);
EXPECT_TRUE(cvB_h(0) == 100);
EXPECT_TRUE(cvB_h(1) == 2);
EXPECT_TRUE(cvB_h(2) == 3);
EXPECT_TRUE(cvB_h(3) == 4);
EXPECT_TRUE(cvB_h(4) == 5);
EXPECT_TRUE(cvB_h(5) == 95);
EXPECT_TRUE(cvB_h(6) == 94);
EXPECT_TRUE(cvB_h(7) == 93);
EXPECT_TRUE(cvB_h(8) == 92);
EXPECT_TRUE(cvB_h(9) == 91);
}
TEST_F(std_algorithms_mod_seq_ops_test, swap_ranges) {
test_swap_ranges(m_static_view);
test_swap_ranges(m_dynamic_view);
test_swap_ranges(m_strided_view);
}
} // namespace stdalgos
} // namespace Test