90 lines
2.9 KiB
C++
90 lines
2.9 KiB
C++
// Copyright by Contributors
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#include <dmlc/filesystem.h>
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#include <xgboost/data.h>
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#include <dmlc/filesystem.h>
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#include <cinttypes>
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#include "../../../src/data/sparse_page_dmatrix.h"
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#include "../helpers.h"
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TEST(SparsePageDMatrix, MetaInfo) {
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dmlc::TemporaryDirectory tempdir;
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const std::string tmp_file = tempdir.path + "/simple.libsvm";
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CreateSimpleTestData(tmp_file);
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xgboost::DMatrix * dmat = xgboost::DMatrix::Load(
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tmp_file + "#" + tmp_file + ".cache", false, false);
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std::cout << tmp_file << std::endl;
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EXPECT_TRUE(FileExists(tmp_file + ".cache"));
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// Test the metadata that was parsed
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EXPECT_EQ(dmat->Info().num_row_, 2);
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EXPECT_EQ(dmat->Info().num_col_, 5);
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EXPECT_EQ(dmat->Info().num_nonzero_, 6);
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EXPECT_EQ(dmat->Info().labels_.Size(), dmat->Info().num_row_);
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delete dmat;
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}
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TEST(SparsePageDMatrix, RowAccess) {
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dmlc::TemporaryDirectory tmpdir;
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std::string filename = tmpdir.path + "/big.libsvm";
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std::unique_ptr<xgboost::DMatrix> dmat =
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xgboost::CreateSparsePageDMatrix(12, 64, filename);
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// Test the data read into the first row
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auto &batch = *dmat->GetBatches<xgboost::SparsePage>().begin();
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auto first_row = batch[0];
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ASSERT_EQ(first_row.size(), 3);
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EXPECT_EQ(first_row[2].index, 2);
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EXPECT_EQ(first_row[2].fvalue, 20);
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}
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TEST(SparsePageDMatrix, ColAccess) {
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dmlc::TemporaryDirectory tempdir;
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const std::string tmp_file = tempdir.path + "/simple.libsvm";
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CreateSimpleTestData(tmp_file);
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xgboost::DMatrix * dmat = xgboost::DMatrix::Load(
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tmp_file + "#" + tmp_file + ".cache", true, false);
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EXPECT_EQ(dmat->GetColDensity(0), 1);
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EXPECT_EQ(dmat->GetColDensity(1), 0.5);
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// Loop over the batches and assert the data is as expected
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for (auto col_batch : dmat->GetBatches<xgboost::SortedCSCPage>()) {
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EXPECT_EQ(col_batch.Size(), dmat->Info().num_col_);
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EXPECT_EQ(col_batch[1][0].fvalue, 10.0f);
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EXPECT_EQ(col_batch[1].size(), 1);
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}
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// Loop over the batches and assert the data is as expected
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for (auto col_batch : dmat->GetBatches<xgboost::CSCPage>()) {
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EXPECT_EQ(col_batch.Size(), dmat->Info().num_col_);
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EXPECT_EQ(col_batch[1][0].fvalue, 10.0f);
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EXPECT_EQ(col_batch[1].size(), 1);
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}
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EXPECT_TRUE(FileExists(tmp_file + ".cache"));
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EXPECT_TRUE(FileExists(tmp_file + ".cache.row.page"));
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EXPECT_TRUE(FileExists(tmp_file + ".cache.col.page"));
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EXPECT_TRUE(FileExists(tmp_file + ".cache.sorted.col.page"));
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delete dmat;
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}
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// Multi-batches access
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TEST(SparsePageDMatrix, ColAccessBatches) {
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dmlc::TemporaryDirectory tmpdir;
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std::string filename = tmpdir.path + "/big.libsvm";
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// Create multiple sparse pages
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std::unique_ptr<xgboost::DMatrix> dmat {
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xgboost::CreateSparsePageDMatrix(1024, 1024, filename)
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};
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auto n_threads = omp_get_max_threads();
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omp_set_num_threads(16);
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for (auto const& page : dmat->GetBatches<xgboost::CSCPage>()) {
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ASSERT_EQ(dmat->Info().num_col_, page.Size());
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}
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omp_set_num_threads(n_threads);
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}
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