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Use weakref instead of id for DataIter cache. (#9445)

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- Fix case where Python reuses id from freed objects.
- Small optimization to column matrix with QDM by using `realloc` instead of copying data.
This commit is contained in:
Jiaming Yuan
2023-08-10 00:40:06 +08:00
committed by GitHub
parent d495a180d8
commit f05a23b41c
14 changed files with 193 additions and 63 deletions
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61
tests/cpp/common/test_column_matrix.cc
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@@ -2,15 +2,26 @@
* Copyright 2018-2023 by XGBoost Contributors
*/
#include <gtest/gtest.h>
#include <xgboost/base.h> // for bst_bin_t
#include <xgboost/context.h> // for Context
#include <xgboost/data.h> // for BatchIterator, BatchSet, DMatrix, Met...
#include "../../../src/common/column_matrix.h"
#include "../helpers.h"
#include <cstddef> // for size_t
#include <cstdint> // for int32_t, uint16_t, uint8_t
#include <limits> // for numeric_limits
#include <memory> // for shared_ptr, __shared_ptr_access, allo...
#include <type_traits> // for remove_reference_t
#include "../../../src/common/column_matrix.h" // for ColumnMatrix, Column, DenseColumnIter
#include "../../../src/common/hist_util.h" // for DispatchBinType, BinTypeSize, Index
#include "../../../src/common/ref_resource_view.h" // for RefResourceView
#include "../../../src/data/gradient_index.h" // for GHistIndexMatrix
#include "../../../src/data/iterative_dmatrix.h" // for IterativeDMatrix
#include "../../../src/tree/param.h" // for TrainParam
#include "../helpers.h" // for RandomDataGenerator, NumpyArrayIterFo...
namespace xgboost {
namespace common {
TEST(DenseColumn, Test) {
namespace xgboost::common {
TEST(ColumnMatrix, Basic) {
int32_t max_num_bins[] = {static_cast<int32_t>(std::numeric_limits<uint8_t>::max()) + 1,
static_cast<int32_t>(std::numeric_limits<uint16_t>::max()) + 1,
static_cast<int32_t>(std::numeric_limits<uint16_t>::max()) + 2};
@@ -22,7 +33,7 @@ TEST(DenseColumn, Test) {
GHistIndexMatrix gmat{&ctx, dmat.get(), max_num_bin, sparse_thresh, false};
ColumnMatrix column_matrix;
for (auto const& page : dmat->GetBatches<SparsePage>()) {
column_matrix.InitFromSparse(page, gmat, sparse_thresh, AllThreadsForTest());
column_matrix.InitFromSparse(page, gmat, sparse_thresh, ctx.Threads());
}
ASSERT_GE(column_matrix.GetTypeSize(), last);
ASSERT_LE(column_matrix.GetTypeSize(), kUint32BinsTypeSize);
@@ -59,7 +70,7 @@ void CheckSparseColumn(SparseColumnIter<BinIdxType>* p_col, const GHistIndexMatr
}
}
TEST(SparseColumn, Test) {
TEST(ColumnMatrix, SparseColumn) {
int32_t max_num_bins[] = {static_cast<int32_t>(std::numeric_limits<uint8_t>::max()) + 1,
static_cast<int32_t>(std::numeric_limits<uint16_t>::max()) + 1,
static_cast<int32_t>(std::numeric_limits<uint16_t>::max()) + 2};
@@ -69,7 +80,7 @@ TEST(SparseColumn, Test) {
GHistIndexMatrix gmat{&ctx, dmat.get(), max_num_bin, 0.5f, false};
ColumnMatrix column_matrix;
for (auto const& page : dmat->GetBatches<SparsePage>()) {
column_matrix.InitFromSparse(page, gmat, 1.0, AllThreadsForTest());
column_matrix.InitFromSparse(page, gmat, 1.0, ctx.Threads());
}
common::DispatchBinType(column_matrix.GetTypeSize(), [&](auto dtype) {
using T = decltype(dtype);
@@ -90,7 +101,7 @@ void CheckColumWithMissingValue(const DenseColumnIter<BinIdxType, true>& col,
}
}
TEST(DenseColumnWithMissing, Test) {
TEST(ColumnMatrix, DenseColumnWithMissing) {
int32_t max_num_bins[] = {static_cast<int32_t>(std::numeric_limits<uint8_t>::max()) + 1,
static_cast<int32_t>(std::numeric_limits<uint16_t>::max()) + 1,
static_cast<int32_t>(std::numeric_limits<uint16_t>::max()) + 2};
@@ -100,7 +111,7 @@ TEST(DenseColumnWithMissing, Test) {
GHistIndexMatrix gmat(&ctx, dmat.get(), max_num_bin, 0.2, false);
ColumnMatrix column_matrix;
for (auto const& page : dmat->GetBatches<SparsePage>()) {
column_matrix.InitFromSparse(page, gmat, 0.2, AllThreadsForTest());
column_matrix.InitFromSparse(page, gmat, 0.2, ctx.Threads());
}
ASSERT_TRUE(column_matrix.AnyMissing());
DispatchBinType(column_matrix.GetTypeSize(), [&](auto dtype) {
@@ -110,5 +121,29 @@ TEST(DenseColumnWithMissing, Test) {
});
}
}
} // namespace common
} // namespace xgboost
TEST(ColumnMatrix, GrowMissing) {
float sparsity = 0.5;
NumpyArrayIterForTest iter(sparsity);
auto n_threads = 0;
bst_bin_t n_bins = 16;
BatchParam batch{n_bins, tree::TrainParam::DftSparseThreshold()};
Context ctx;
auto m = std::make_shared<data::IterativeDMatrix>(&iter, iter.Proxy(), nullptr, Reset, Next,
std::numeric_limits<float>::quiet_NaN(),
n_threads, n_bins);
for (auto const& page : m->GetBatches<GHistIndexMatrix>(&ctx, batch)) {
auto const& column_matrix = page.Transpose();
auto const& missing = column_matrix.Missing();
auto n = NumpyArrayIterForTest::Rows() * NumpyArrayIterForTest::Cols();
auto expected = std::remove_reference_t<decltype(missing)>::BitFieldT::ComputeStorageSize(n);
auto got = missing.storage.size();
ASSERT_EQ(expected, got);
DispatchBinType(column_matrix.GetTypeSize(), [&](auto dtype) {
using T = decltype(dtype);
auto col = column_matrix.DenseColumn<T, true>(0);
CheckColumWithMissingValue(col, page);
});
}
}
} // namespace xgboost::common

14
tests/cpp/common/test_io.cc
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@@ -119,6 +119,20 @@ TEST(IO, Resource) {
for (std::size_t i = n; i < 2 * n; ++i) {
ASSERT_EQ(malloc_resource->DataAs<std::uint8_t>()[i], 0);
}
ptr = malloc_resource->DataAs<std::uint8_t>();
std::fill_n(ptr, malloc_resource->Size(), 7);
if (force_malloc) {
malloc_resource->Resize<true>(n * 3, std::byte{3});
} else {
malloc_resource->Resize<false>(n * 3, std::byte{3});
}
for (std::size_t i = 0; i < n * 2; ++i) {
ASSERT_EQ(malloc_resource->DataAs<std::uint8_t>()[i], 7);
}
for (std::size_t i = n * 2; i < n * 3; ++i) {
ASSERT_EQ(malloc_resource->DataAs<std::uint8_t>()[i], 3);
}
};
test_malloc_resize(true);
test_malloc_resize(false);

8
tests/cpp/data/test_iterative_dmatrix.cc
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@@ -12,8 +12,7 @@
#include "../helpers.h"
#include "xgboost/data.h" // DMatrix
namespace xgboost {
namespace data {
namespace xgboost::data {
TEST(IterativeDMatrix, Ref) {
Context ctx;
TestRefDMatrix<GHistIndexMatrix, NumpyArrayIterForTest>(
@@ -21,7 +20,7 @@ TEST(IterativeDMatrix, Ref) {
}
TEST(IterativeDMatrix, IsDense) {
int n_bins = 16;
bst_bin_t n_bins = 16;
auto test = [n_bins](float sparsity) {
NumpyArrayIterForTest iter(sparsity);
auto n_threads = 0;
@@ -38,5 +37,4 @@ TEST(IterativeDMatrix, IsDense) {
test(0.1);
test(1.0);
}
} // namespace data
} // namespace xgboost
} // namespace xgboost::data