Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Fixes up the overflowed fixed-point round on nullable column #10316

Merged
merged 4 commits into from
Feb 22, 2022
Merged

Fixes up the overflowed fixed-point round on nullable column #10316

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
4ee7365
fixes up the overflowed fixed-point round on nullable column
sperlingxx Feb 17, 2022
27c5f50
update licence
sperlingxx Feb 17, 2022
306cca3
update
sperlingxx Feb 21, 2022
40a0763
update
sperlingxx Feb 21, 2022
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 7 additions & 3 deletions cpp/src/round/round.cu
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/*
* Copyright (c) 2020, NVIDIA CORPORATION.
* Copyright (c) 2020-2022, NVIDIA CORPORATION.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
Expand All @@ -16,6 +16,8 @@

#include <cudf/column/column_factories.hpp>
#include <cudf/copying.hpp>
#include <cudf/detail/copy_range.cuh>
#include <cudf/detail/iterator.cuh>
#include <cudf/detail/null_mask.hpp>
#include <cudf/detail/nvtx/ranges.hpp>
#include <cudf/detail/round.hpp>
Expand Down Expand Up @@ -259,8 +261,10 @@ std::unique_ptr<column> round_with(column_view const& input,
// overflow. Under this circumstance, we can simply output a zero column because no digits can
// survive such a large scale movement.
if (scale_movement > cuda::std::numeric_limits<Type>::digits10) {
auto zero_scalar = make_fixed_point_scalar<T>(0, scale_type{-decimal_places});
detail::fill_in_place(out_view, 0, out_view.size(), *zero_scalar, stream);
thrust::uninitialized_fill(rmm::exec_policy(stream),
out_view.template begin<Type>(),
out_view.template end<Type>(),
static_cast<Type>(0));
} else {
Type const n = std::pow(10, scale_movement);
thrust::transform(rmm::exec_policy(stream),
Expand Down
51 changes: 28 additions & 23 deletions cpp/tests/round/round_tests.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/*
* Copyright (c) 2020-2021, NVIDIA CORPORATION.
* Copyright (c) 2020-2022, NVIDIA CORPORATION.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
Expand Down Expand Up @@ -311,36 +311,41 @@ TYPED_TEST(RoundTestsFixedPointTypes, TestForBlog)
CUDF_TEST_EXPECT_COLUMNS_EQUAL(expected, result->view());
}

TEST_F(RoundTests, TestScaleMovementExceedingMaxPrecision)
TYPED_TEST(RoundTestsFixedPointTypes, TestScaleMovementExceedingMaxPrecision)
{
using namespace numeric;
using dec32_wrapper = cudf::test::fixed_point_column_wrapper<int32_t>;
using dec64_wrapper = cudf::test::fixed_point_column_wrapper<int64_t>;
using dec128_wrapper = cudf::test::fixed_point_column_wrapper<__int128_t>;
using decimalXX = TypeParam;
using RepType = cudf::device_storage_type_t<decimalXX>;
using fp_wrapper = cudf::test::fixed_point_column_wrapper<RepType>;

// max precision of int32 = 9
// scale movement = -(-11) -1 = 10 > 9
auto const input_32 =
dec32_wrapper{{14, 15, 16, 24, 25, 26, -14, -15, -16, -24, -25, -26}, scale_type{1}};
auto const expected_32 = dec32_wrapper{{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, scale_type{11}};
auto const result_32 = cudf::round(input_32, -11, cudf::rounding_method::HALF_UP);
CUDF_TEST_EXPECT_COLUMNS_EQUAL(expected_32, result_32->view());

// max precision of int64 = 18
// scale movement = -(-20) -1 = 19 > 18
auto const input_64 =
dec64_wrapper{{14, 15, 16, 24, 25, 26, -14, -15, -16, -24, -25, -26}, scale_type{1}};
auto const expected_64 = dec64_wrapper{{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, scale_type{20}};
auto const result_64 = cudf::round(input_64, -20, cudf::rounding_method::HALF_EVEN);
CUDF_TEST_EXPECT_COLUMNS_EQUAL(expected_64, result_64->view());

// max precision of int128 = 38
// scale movement = -(-40) -1 = 39 > 18
auto const input_128 =
dec128_wrapper{{14, 15, 16, 24, 25, 26, -14, -15, -16, -24, -25, -26}, scale_type{1}};
auto const expected_128 = dec128_wrapper{{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, scale_type{40}};
auto const result_128 = cudf::round(input_128, -40, cudf::rounding_method::HALF_UP);
CUDF_TEST_EXPECT_COLUMNS_EQUAL(expected_128, result_128->view());
// scale movement = -(-40) -1 = 39 > 38
auto const target_scale = cuda::std::numeric_limits<RepType>::digits10 + 1 + 1;

auto const input =
fp_wrapper{{14, 15, 16, 24, 25, 26, -14, -15, -16, -24, -25, -26}, scale_type{1}};
auto const expected = fp_wrapper{{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, scale_type{target_scale}};
auto const result = cudf::round(input, -target_scale, cudf::rounding_method::HALF_UP);
CUDF_TEST_EXPECT_COLUMNS_EQUAL(expected, result->view());

auto const input_even =
fp_wrapper{{14, 15, 16, 24, 25, 26, -14, -15, -16, -24, -25, -26}, scale_type{1}};
auto const expected_even =
fp_wrapper{{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, scale_type{target_scale}};
auto const result_even = cudf::round(input, -target_scale, cudf::rounding_method::HALF_EVEN);
CUDF_TEST_EXPECT_COLUMNS_EQUAL(expected_even, result_even->view());

const std::initializer_list<bool> validity = {1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0};
auto const input_null =
fp_wrapper{{14, 15, 16, 24, 25, 26, -14, -15, -16, -24, -25, -26}, validity, scale_type{1}};
auto const expected_null =
fp_wrapper{{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, validity, scale_type{target_scale}};
auto const result_null = cudf::round(input_null, -target_scale, cudf::rounding_method::HALF_UP);
CUDF_TEST_EXPECT_COLUMNS_EQUAL(expected_null, result_null->view());
}

TYPED_TEST(RoundTestsFloatingPointTypes, SimpleFloatingPointTestHalfUp0)
Expand Down