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Stricter validation for group. (#7345)

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Jiaming Yuan 2021-10-21 12:13:33 +08:00 committed by GitHub
parent 74bab6e504
commit d1f00fb0b7
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3 changed files with 32 additions and 0 deletions
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12
src/data/data.cc
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@ -337,6 +337,17 @@ inline bool MetaTryLoadFloatInfo(const std::string& fname,
return true;
}
void ValidateQueryGroup(std::vector<bst_group_t> const &group_ptr_) {
bool valid_query_group = true;
for (size_t i = 1; i < group_ptr_.size(); ++i) {
valid_query_group = valid_query_group && group_ptr_[i] >= group_ptr_[i - 1];
if (!valid_query_group) {
break;
}
}
CHECK(valid_query_group) << "Invalid group structure.";
}
// macro to dispatch according to specified pointer types
#define DISPATCH_CONST_PTR(dtype, old_ptr, cast_ptr, proc) \
switch (dtype) { \
@ -387,6 +398,7 @@ void MetaInfo::SetInfo(const char* key, const void* dptr, DataType dtype, size_t
for (size_t i = 1; i < group_ptr_.size(); ++i) {
group_ptr_[i] = group_ptr_[i - 1] + group_ptr_[i];
}
ValidateQueryGroup(group_ptr_);
} else if (!std::strcmp(key, "qid")) {
std::vector<uint32_t> query_ids(num, 0);
DISPATCH_CONST_PTR(dtype, dptr, cast_dptr,

3
src/data/data.cu
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@ -122,6 +122,8 @@ struct WeightsCheck {
};
} // anonymous namespace
void ValidateQueryGroup(std::vector<bst_group_t> const &group_ptr_);
void MetaInfo::SetInfo(const char * c_key, std::string const& interface_str) {
Json j_interface = Json::Load({interface_str.c_str(), interface_str.size()});
auto const& j_arr = get<Array>(j_interface);
@ -157,6 +159,7 @@ void MetaInfo::SetInfo(const char * c_key, std::string const& interface_str) {
CopyInfoImpl(array_interface, &base_margin_);
} else if (key == "group") {
CopyGroupInfoImpl(array_interface, &group_ptr_);
ValidateQueryGroup(group_ptr_);
return;
} else if (key == "qid") {
CopyQidImpl(array_interface, &group_ptr_);

17
tests/cpp/data/test_metainfo.cc
View File

@ -233,12 +233,29 @@ TEST(MetaInfo, Validate) {
info.SetInfo("label", labels.data(), xgboost::DataType::kFloat32, info.num_row_ + 1);
EXPECT_THROW(info.Validate(0), dmlc::Error);
// Make overflow data, which can happen when users pass group structure as int
// or float.
groups = {};
for (size_t i = 0; i < 63; ++i) {
groups.push_back(1562500);
}
groups.push_back(static_cast<xgboost::bst_group_t>(-1));
EXPECT_THROW(info.SetInfo("group", groups.data(), xgboost::DataType::kUInt32,
groups.size()),
dmlc::Error);
#if defined(XGBOOST_USE_CUDA)
info.group_ptr_.clear();
labels.resize(info.num_row_);
info.SetInfo("label", labels.data(), xgboost::DataType::kFloat32, info.num_row_);
info.labels_.SetDevice(0);
EXPECT_THROW(info.Validate(1), dmlc::Error);
xgboost::HostDeviceVector<xgboost::bst_group_t> d_groups{groups};
auto arr_interface = xgboost::GetArrayInterface(&d_groups, 64, 1);
std::string arr_interface_str;
xgboost::Json::Dump(arr_interface, &arr_interface_str);
EXPECT_THROW(info.SetInfo("group", arr_interface_str), dmlc::Error);
#endif // defined(XGBOOST_USE_CUDA)
}