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Support column-wise data split with in-memory inputs (#9628)

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Co-authored-by: Jiaming Yuan <jm.yuan@outlook.com>
This commit is contained in:
Rong Ou
2023-10-16 21:16:39 -07:00
committed by GitHub
parent 4d1607eefd
commit da6803b75b
12 changed files with 307 additions and 27 deletions
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43
tests/cpp/data/test_metainfo.cc
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@@ -74,6 +74,49 @@ TEST(MetaInfo, GetSetFeature) {
// Other conditions are tested in `SaveLoadBinary`.
}
namespace {
void VerifyGetSetFeatureColumnSplit() {
xgboost::MetaInfo info;
info.data_split_mode = DataSplitMode::kCol;
auto const world_size = collective::GetWorldSize();
auto constexpr kCols{2};
std::vector<std::string> types{u8"float", u8"c"};
std::vector<char const *> c_types(kCols);
std::transform(types.cbegin(), types.cend(), c_types.begin(),
[](auto const &str) { return str.c_str(); });
info.num_col_ = kCols;
EXPECT_THROW(info.SetFeatureInfo(u8"feature_type", c_types.data(), c_types.size()), dmlc::Error);
info.num_col_ = kCols * world_size;
EXPECT_NO_THROW(info.SetFeatureInfo(u8"feature_type", c_types.data(), c_types.size()));
std::vector<std::string> expected_type_names{u8"float", u8"c", u8"float",
u8"c", u8"float", u8"c"};
EXPECT_EQ(info.feature_type_names, expected_type_names);
std::vector<xgboost::FeatureType> expected_types{
xgboost::FeatureType::kNumerical, xgboost::FeatureType::kCategorical,
xgboost::FeatureType::kNumerical, xgboost::FeatureType::kCategorical,
xgboost::FeatureType::kNumerical, xgboost::FeatureType::kCategorical};
EXPECT_EQ(info.feature_types.HostVector(), expected_types);
std::vector<std::string> names{u8"feature0", u8"feature1"};
std::vector<char const *> c_names(kCols);
std::transform(names.cbegin(), names.cend(), c_names.begin(),
[](auto const &str) { return str.c_str(); });
info.num_col_ = kCols;
EXPECT_THROW(info.SetFeatureInfo(u8"feature_name", c_names.data(), c_names.size()), dmlc::Error);
info.num_col_ = kCols * world_size;
EXPECT_NO_THROW(info.SetFeatureInfo(u8"feature_name", c_names.data(), c_names.size()));
std::vector<std::string> expected_names{u8"0.feature0", u8"0.feature1", u8"1.feature0",
u8"1.feature1", u8"2.feature0", u8"2.feature1"};
EXPECT_EQ(info.feature_names, expected_names);
}
} // anonymous namespace
TEST(MetaInfo, GetSetFeatureColumnSplit) {
auto constexpr kWorldSize{3};
RunWithInMemoryCommunicator(kWorldSize, VerifyGetSetFeatureColumnSplit);
}
TEST(MetaInfo, SaveLoadBinary) {
xgboost::MetaInfo info;
xgboost::Context ctx;