390 lines
12 KiB
C++
390 lines
12 KiB
C++
//@HEADER
|
|
// ************************************************************************
|
|
//
|
|
// Kokkos v. 4.0
|
|
// Copyright (2022) 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.
|
|
//
|
|
// Part of Kokkos, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://kokkos.org/LICENSE for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//@HEADER
|
|
|
|
#include <TestStdAlgorithmsCommon.hpp>
|
|
#include <utility>
|
|
#include <iomanip>
|
|
|
|
namespace Test {
|
|
namespace stdalgos {
|
|
namespace TransformEScan {
|
|
|
|
namespace KE = Kokkos::Experimental;
|
|
|
|
template <class ValueType>
|
|
struct UnifDist;
|
|
|
|
template <>
|
|
struct UnifDist<double> {
|
|
using dist_type = std::uniform_real_distribution<double>;
|
|
std::mt19937 m_gen;
|
|
dist_type m_dist;
|
|
|
|
UnifDist() : m_dist(0.05, 1.2) { m_gen.seed(1034343); }
|
|
|
|
double operator()() { return m_dist(m_gen); }
|
|
};
|
|
|
|
template <>
|
|
struct UnifDist<int> {
|
|
using dist_type = std::uniform_int_distribution<int>;
|
|
std::mt19937 m_gen;
|
|
dist_type m_dist;
|
|
|
|
UnifDist() : m_dist(1, 3) { m_gen.seed(1034343); }
|
|
|
|
int operator()() { return m_dist(m_gen); }
|
|
};
|
|
|
|
template <class ViewType>
|
|
void fill_zero(ViewType view) {
|
|
Kokkos::parallel_for(view.extent(0), FillZeroFunctor<ViewType>(view));
|
|
}
|
|
|
|
template <class ViewType>
|
|
void fill_view(ViewType dest_view, const std::string& name) {
|
|
using value_type = typename ViewType::value_type;
|
|
using exe_space = typename ViewType::execution_space;
|
|
|
|
const std::size_t ext = dest_view.extent(0);
|
|
using aux_view_t = Kokkos::View<value_type*, exe_space>;
|
|
aux_view_t aux_view("aux_view", ext);
|
|
auto v_h = create_mirror_view(Kokkos::HostSpace(), aux_view);
|
|
|
|
UnifDist<value_type> randObj;
|
|
|
|
if (name == "empty") {
|
|
// no op
|
|
}
|
|
|
|
else if (name == "one-element") {
|
|
assert(v_h.extent(0) == 1);
|
|
v_h(0) = static_cast<value_type>(1);
|
|
}
|
|
|
|
else if (name == "two-elements-a") {
|
|
assert(v_h.extent(0) == 2);
|
|
v_h(0) = static_cast<value_type>(1);
|
|
v_h(1) = static_cast<value_type>(2);
|
|
}
|
|
|
|
else if (name == "two-elements-b") {
|
|
assert(v_h.extent(0) == 2);
|
|
v_h(0) = static_cast<value_type>(2);
|
|
v_h(1) = static_cast<value_type>(-1);
|
|
}
|
|
|
|
else if (name == "small-a") {
|
|
assert(v_h.extent(0) == 9);
|
|
v_h(0) = static_cast<value_type>(3);
|
|
v_h(1) = static_cast<value_type>(1);
|
|
v_h(2) = static_cast<value_type>(4);
|
|
v_h(3) = static_cast<value_type>(1);
|
|
v_h(4) = static_cast<value_type>(5);
|
|
v_h(5) = static_cast<value_type>(9);
|
|
v_h(6) = static_cast<value_type>(2);
|
|
v_h(7) = static_cast<value_type>(6);
|
|
v_h(8) = static_cast<value_type>(2);
|
|
}
|
|
|
|
else if (name == "small-b") {
|
|
assert(v_h.extent(0) >= 6);
|
|
for (std::size_t i = 0; i < ext; ++i) {
|
|
v_h(i) = randObj();
|
|
}
|
|
v_h(5) = static_cast<value_type>(-2);
|
|
}
|
|
|
|
else if (name == "medium" || name == "large") {
|
|
for (std::size_t i = 0; i < ext; ++i) {
|
|
v_h(i) = randObj();
|
|
}
|
|
}
|
|
|
|
else {
|
|
throw std::runtime_error("invalid choice");
|
|
}
|
|
|
|
Kokkos::deep_copy(aux_view, v_h);
|
|
CopyFunctor<aux_view_t, ViewType> F1(aux_view, dest_view);
|
|
Kokkos::parallel_for("copy", dest_view.extent(0), F1);
|
|
}
|
|
|
|
// I had to write my own because std::transform_exclusive_scan is ONLY found
|
|
// with std=c++17
|
|
template <class it1, class it2, class ValType, class BopType, class UopType>
|
|
void my_host_transform_exclusive_scan(it1 first, it1 last, it2 dest,
|
|
ValType init, BopType bop, UopType uop) {
|
|
const auto num_elements = last - first;
|
|
if (num_elements > 0) {
|
|
while (first < last - 1) {
|
|
*(dest++) = init;
|
|
init = bop(uop(*(first++)), init);
|
|
}
|
|
*dest = init;
|
|
}
|
|
}
|
|
|
|
template <class ViewType1, class ViewType2, class ValueType, class BinaryOp,
|
|
class UnaryOp>
|
|
void verify_data(ViewType1 data_view, // contains data
|
|
ViewType2 test_view, // the view to test
|
|
ValueType init_value, BinaryOp bop, UnaryOp uop) {
|
|
//! always careful because views might not be deep copyable
|
|
|
|
auto data_view_dc = create_deep_copyable_compatible_clone(data_view);
|
|
auto data_view_h =
|
|
create_mirror_view_and_copy(Kokkos::HostSpace(), data_view_dc);
|
|
|
|
using gold_view_value_type = typename ViewType2::value_type;
|
|
Kokkos::View<gold_view_value_type*, Kokkos::HostSpace> gold_h(
|
|
"goldh", data_view.extent(0));
|
|
my_host_transform_exclusive_scan(KE::cbegin(data_view_h),
|
|
KE::cend(data_view_h), KE::begin(gold_h),
|
|
init_value, bop, uop);
|
|
|
|
auto test_view_dc = create_deep_copyable_compatible_clone(test_view);
|
|
auto test_view_h =
|
|
create_mirror_view_and_copy(Kokkos::HostSpace(), test_view_dc);
|
|
if (test_view_h.extent(0) > 0) {
|
|
for (std::size_t i = 0; i < test_view_h.extent(0); ++i) {
|
|
if (std::is_same<gold_view_value_type, int>::value) {
|
|
ASSERT_EQ(gold_h(i), test_view_h(i));
|
|
} else {
|
|
const auto error = std::abs(gold_h(i) - test_view_h(i));
|
|
ASSERT_LT(error, 1e-10) << i << " " << std::setprecision(15) << error
|
|
<< static_cast<double>(test_view_h(i)) << " "
|
|
<< static_cast<double>(gold_h(i));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
template <class ValueType>
|
|
struct TimesTwoUnaryFunctor {
|
|
KOKKOS_INLINE_FUNCTION
|
|
ValueType operator()(const ValueType& a) const { return (a * ValueType(2)); }
|
|
};
|
|
|
|
template <class ValueType>
|
|
struct SumBinaryFunctor {
|
|
KOKKOS_INLINE_FUNCTION
|
|
ValueType operator()(const ValueType& a, const ValueType& b) const {
|
|
return (a + b);
|
|
}
|
|
};
|
|
|
|
std::string value_type_to_string(int) { return "int"; }
|
|
|
|
std::string value_type_to_string(double) { return "double"; }
|
|
|
|
template <class Tag, class ValueType, class InfoType, class BinaryOp,
|
|
class UnaryOp>
|
|
void run_single_scenario(const InfoType& scenario_info, ValueType init_value,
|
|
BinaryOp bop, UnaryOp uop) {
|
|
const auto name = std::get<0>(scenario_info);
|
|
const std::size_t view_ext = std::get<1>(scenario_info);
|
|
|
|
auto view_from = create_view<ValueType>(Tag{}, view_ext,
|
|
"transform_exclusive_scan_view_from");
|
|
fill_view(view_from, name);
|
|
|
|
auto view_dest = create_view<ValueType>(Tag{}, view_ext,
|
|
"transform_exclusive_scan_view_dest");
|
|
{
|
|
fill_zero(view_dest);
|
|
auto r = KE::transform_exclusive_scan(
|
|
exespace(), KE::cbegin(view_from), KE::cend(view_from),
|
|
KE::begin(view_dest), init_value, bop, uop);
|
|
ASSERT_EQ(r, KE::end(view_dest));
|
|
verify_data(view_from, view_dest, init_value, bop, uop);
|
|
}
|
|
|
|
{
|
|
fill_zero(view_dest);
|
|
auto r = KE::transform_exclusive_scan(
|
|
"label", exespace(), KE::cbegin(view_from), KE::cend(view_from),
|
|
KE::begin(view_dest), init_value, bop, uop);
|
|
ASSERT_EQ(r, KE::end(view_dest));
|
|
verify_data(view_from, view_dest, init_value, bop, uop);
|
|
}
|
|
|
|
{
|
|
fill_zero(view_dest);
|
|
auto r = KE::transform_exclusive_scan(exespace(), view_from, view_dest,
|
|
init_value, bop, uop);
|
|
ASSERT_EQ(r, KE::end(view_dest));
|
|
verify_data(view_from, view_dest, init_value, bop, uop);
|
|
}
|
|
|
|
{
|
|
fill_zero(view_dest);
|
|
auto r = KE::transform_exclusive_scan("label", exespace(), view_from,
|
|
view_dest, init_value, bop, uop);
|
|
ASSERT_EQ(r, KE::end(view_dest));
|
|
verify_data(view_from, view_dest, init_value, bop, uop);
|
|
}
|
|
|
|
Kokkos::fence();
|
|
}
|
|
|
|
template <class Tag, class ValueType, class InfoType, class BinaryOp,
|
|
class UnaryOp>
|
|
void run_single_scenario_inplace(const InfoType& scenario_info,
|
|
ValueType init_value, BinaryOp bop,
|
|
UnaryOp uop) {
|
|
const auto name = std::get<0>(scenario_info);
|
|
const std::size_t view_ext = std::get<1>(scenario_info);
|
|
|
|
// since here we call the in-place operation, we need to use two views:
|
|
// view1: filled according to what the scenario asks for and is not modified
|
|
// view2: filled according to what the scenario asks for and used for the
|
|
// in-place op Therefore, after the op is done, view2 should contain the
|
|
// result of doing exclusive scan NOTE: view2 is filled below every time
|
|
// because the algorithm acts in place
|
|
|
|
auto view1 =
|
|
create_view<ValueType>(Tag{}, view_ext, "transform_exclusive_scan_view1");
|
|
fill_view(view1, name);
|
|
|
|
auto view2 =
|
|
create_view<ValueType>(Tag{}, view_ext, "transform_exclusive_scan_view2");
|
|
|
|
{
|
|
fill_view(view2, name);
|
|
auto r = KE::transform_exclusive_scan(exespace(), KE::cbegin(view2),
|
|
KE::cend(view2), KE::begin(view2),
|
|
init_value, bop, uop);
|
|
ASSERT_EQ(r, KE::end(view2));
|
|
verify_data(view1, view2, init_value, bop, uop);
|
|
}
|
|
|
|
{
|
|
fill_view(view2, name);
|
|
auto r = KE::transform_exclusive_scan(
|
|
"label", exespace(), KE::cbegin(view2), KE::cend(view2),
|
|
KE::begin(view2), init_value, bop, uop);
|
|
ASSERT_EQ(r, KE::end(view2));
|
|
verify_data(view1, view2, init_value, bop, uop);
|
|
}
|
|
|
|
{
|
|
fill_view(view2, name);
|
|
auto r = KE::transform_exclusive_scan(exespace(), view2, view2, init_value,
|
|
bop, uop);
|
|
ASSERT_EQ(r, KE::end(view2));
|
|
verify_data(view1, view2, init_value, bop, uop);
|
|
}
|
|
|
|
{
|
|
fill_view(view2, name);
|
|
auto r = KE::transform_exclusive_scan("label", exespace(), view2, view2,
|
|
init_value, bop, uop);
|
|
ASSERT_EQ(r, KE::end(view2));
|
|
verify_data(view1, view2, init_value, bop, uop);
|
|
}
|
|
|
|
Kokkos::fence();
|
|
}
|
|
|
|
template <class Tag, class ValueType>
|
|
void run_all_scenarios() {
|
|
const std::map<std::string, std::size_t> scenarios = {
|
|
{"empty", 0}, {"one-element", 1}, {"two-elements-a", 2},
|
|
{"two-elements-b", 2}, {"small-a", 9}, {"small-b", 13},
|
|
{"medium", 1103}, {"large", 10513}};
|
|
|
|
for (const auto& it : scenarios) {
|
|
using uop_t = TimesTwoUnaryFunctor<ValueType>;
|
|
using bop_t = SumBinaryFunctor<ValueType>;
|
|
run_single_scenario<Tag, ValueType>(it, ValueType{0}, bop_t(), uop_t());
|
|
run_single_scenario<Tag, ValueType>(it, ValueType{1}, bop_t(), uop_t());
|
|
run_single_scenario<Tag, ValueType>(it, ValueType{-2}, bop_t(), uop_t());
|
|
run_single_scenario<Tag, ValueType>(it, ValueType{3}, bop_t(), uop_t());
|
|
|
|
run_single_scenario_inplace<Tag, ValueType>(it, ValueType{0}, bop_t(),
|
|
uop_t());
|
|
run_single_scenario_inplace<Tag, ValueType>(it, ValueType{-2}, bop_t(),
|
|
uop_t());
|
|
}
|
|
}
|
|
|
|
#if !defined KOKKOS_ENABLE_OPENMPTARGET
|
|
TEST(std_algorithms_numeric_ops_test, transform_exclusive_scan) {
|
|
run_all_scenarios<DynamicTag, double>();
|
|
run_all_scenarios<StridedThreeTag, double>();
|
|
run_all_scenarios<DynamicTag, int>();
|
|
run_all_scenarios<StridedThreeTag, int>();
|
|
}
|
|
#endif
|
|
|
|
template <class ValueType>
|
|
struct MultiplyFunctor {
|
|
KOKKOS_INLINE_FUNCTION
|
|
ValueType operator()(const ValueType& a, const ValueType& b) const {
|
|
return (a * b);
|
|
}
|
|
};
|
|
|
|
TEST(std_algorithms_numeric_ops_test, transform_exclusive_scan_functor) {
|
|
int dummy = 0;
|
|
using view_type = Kokkos::View<int*, exespace>;
|
|
view_type dummy_view("dummy_view", 0);
|
|
using unary_op_type =
|
|
Kokkos::Experimental::Impl::StdNumericScanIdentityReferenceUnaryFunctor<
|
|
int>;
|
|
using functor_type =
|
|
Kokkos::Experimental::Impl::TransformExclusiveScanFunctorWithValueWrapper<
|
|
exespace, int, int, view_type, view_type, MultiplyFunctor<int>,
|
|
unary_op_type>;
|
|
functor_type functor(dummy, dummy_view, dummy_view, {}, {});
|
|
using value_type = functor_type::value_type;
|
|
|
|
value_type value1;
|
|
functor.init(value1);
|
|
ASSERT_EQ(value1.val, 0);
|
|
ASSERT_EQ(value1.is_initial, true);
|
|
|
|
value_type value2;
|
|
value2.val = 1;
|
|
value2.is_initial = false;
|
|
functor.join(value1, value2);
|
|
ASSERT_EQ(value1.val, 1);
|
|
ASSERT_EQ(value1.is_initial, false);
|
|
|
|
functor.init(value1);
|
|
functor.join(value2, value1);
|
|
ASSERT_EQ(value2.val, 1);
|
|
ASSERT_EQ(value2.is_initial, false);
|
|
|
|
functor.init(value2);
|
|
functor.join(value2, value1);
|
|
ASSERT_EQ(value2.val, 0);
|
|
ASSERT_EQ(value2.is_initial, true);
|
|
|
|
value1.val = 3;
|
|
value1.is_initial = false;
|
|
value2.val = 2;
|
|
value2.is_initial = false;
|
|
functor.join(value2, value1);
|
|
ASSERT_EQ(value2.val, 6);
|
|
ASSERT_EQ(value2.is_initial, false);
|
|
}
|
|
|
|
} // namespace TransformEScan
|
|
} // namespace stdalgos
|
|
} // namespace Test
|