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/*! Copyright 2019-2021 by XGBoost Contributors */
#include <gtest/gtest.h>
#include <thrust/device_vector.h>
#include <xgboost/context.h>
#include <xgboost/data.h>
#include <xgboost/json.h>
#include "../../../src/common/device_helpers.cuh"
#include "test_array_interface.h"
#include "test_metainfo.h"
namespace xgboost {
template <typename T>
std::string PrepareData(std::string typestr, thrust::device_vector<T>* out, const size_t kRows=16) {
out->resize(kRows);
auto& d_data = *out;
for (size_t i = 0; i < d_data.size(); ++i) {
d_data[i] = i * 2.0;
}
Json column { Object() };
std::vector<Json> j_shape {Json(Integer(static_cast<Integer::Int>(kRows)))};
column["shape"] = Array(j_shape);
column["strides"] = Array(std::vector<Json>{Json(Integer{static_cast<Integer::Int>(sizeof(T))})});
column["version"] = 3;
column["typestr"] = String(typestr);
auto p_d_data = d_data.data().get();
std::vector<Json> j_data{Json(Integer{reinterpret_cast<Integer::Int>(p_d_data)}),
Json(Boolean(false))};
column["data"] = j_data;
column["stream"] = nullptr;
Json array(std::vector<Json>{column});
std::string str;
Json::Dump(array, &str);
return str;
}
TEST(MetaInfo, FromInterface) {
cudaSetDevice(0);
Context ctx;
thrust::device_vector<float> d_data;
std::string str = PrepareData<float>("<f4", &d_data);
MetaInfo info;
info.SetInfo(ctx, "label", str.c_str());
auto const& h_label = info.labels.HostView();
ASSERT_EQ(h_label.Size(), d_data.size());
for (size_t i = 0; i < d_data.size(); ++i) {
ASSERT_EQ(h_label(i), d_data[i]);
}
info.SetInfo(ctx, "weight", str.c_str());
auto const& h_weight = info.weights_.HostVector();
for (size_t i = 0; i < d_data.size(); ++i) {
ASSERT_EQ(h_weight[i], d_data[i]);
}
info.SetInfo(ctx, "base_margin", str.c_str());
auto const h_base_margin = info.base_margin_.View(DeviceOrd::CPU());
ASSERT_EQ(h_base_margin.Size(), d_data.size());
for (size_t i = 0; i < d_data.size(); ++i) {
ASSERT_EQ(h_base_margin(i), d_data[i]);
}
thrust::device_vector<int> d_group_data;
std::string group_str = PrepareData<int>("<i4", &d_group_data, 4);
d_group_data[0] = 4;
d_group_data[1] = 3;
d_group_data[2] = 2;
d_group_data[3] = 1;
info.SetInfo(ctx, "group", group_str.c_str());
std::vector<bst_group_t> expected_group_ptr = {0, 4, 7, 9, 10};
EXPECT_EQ(info.group_ptr_, expected_group_ptr);
}
TEST(MetaInfo, GPUStridedData) {
TestMetaInfoStridedData(DeviceOrd::CUDA(0));
}
TEST(MetaInfo, Group) {
cudaSetDevice(0);
MetaInfo info;
Context ctx;
thrust::device_vector<uint32_t> d_uint;
std::string uint_str = PrepareData<uint32_t>("<u4", &d_uint);
info.SetInfo(ctx, "group", uint_str.c_str());
auto& h_group = info.group_ptr_;
ASSERT_EQ(h_group.size(), d_uint.size() + 1);
for (size_t i = 1; i < h_group.size(); ++i) {
ASSERT_EQ(h_group[i], d_uint[i - 1] + h_group[i - 1]) << "i: " << i;
}
thrust::device_vector<int64_t> d_int64;
std::string int_str = PrepareData<int64_t>("<i8", &d_int64);
info = MetaInfo();
info.SetInfo(ctx, "group", int_str.c_str());
h_group = info.group_ptr_;
ASSERT_EQ(h_group.size(), d_uint.size() + 1);
for (size_t i = 1; i < h_group.size(); ++i) {
ASSERT_EQ(h_group[i], d_uint[i - 1] + h_group[i - 1]) << "i: " << i;
}
// Incorrect type
thrust::device_vector<float> d_float;
std::string float_str = PrepareData<float>("<f4", &d_float);
info = MetaInfo();
EXPECT_ANY_THROW(info.SetInfo(ctx, "group", float_str.c_str()));
}
TEST(MetaInfo, GPUQid) {
xgboost::MetaInfo info;
Context ctx;
info.num_row_ = 100;
thrust::device_vector<uint32_t> qid(info.num_row_, 0);
for (size_t i = 0; i < qid.size(); ++i) {
qid[i] = i;
}
auto column = Generate2dArrayInterface(info.num_row_, 1, "<u4", &qid);
Json array{std::vector<Json>{column}};
std::string array_str;
Json::Dump(array, &array_str);
info.SetInfo(ctx, "qid", array_str.c_str());
ASSERT_EQ(info.group_ptr_.size(), info.num_row_ + 1);
ASSERT_EQ(info.group_ptr_.front(), 0);
ASSERT_EQ(info.group_ptr_.back(), info.num_row_);
for (size_t i = 0; i < info.num_row_ + 1; ++i) {
ASSERT_EQ(info.group_ptr_[i], i);
}
}
TEST(MetaInfo, DeviceExtend) {
dh::safe_cuda(cudaSetDevice(0));
size_t const kRows = 100;
MetaInfo lhs, rhs;
Context ctx;
thrust::device_vector<float> d_data;
std::string str = PrepareData<float>("<f4", &d_data, kRows);
lhs.SetInfo(ctx, "label", str.c_str());
rhs.SetInfo(ctx, "label", str.c_str());
ASSERT_FALSE(rhs.labels.Data()->HostCanRead());
lhs.num_row_ = kRows;
rhs.num_row_ = kRows;
lhs.Extend(rhs, true, true);
ASSERT_EQ(lhs.num_row_, kRows * 2);
ASSERT_FALSE(lhs.labels.Data()->HostCanRead());
ASSERT_FALSE(lhs.labels.Data()->HostCanRead());
ASSERT_FALSE(rhs.labels.Data()->HostCanRead());
}
} // namespace xgboost
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