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/**
* Copyright 2021-2024, XGBoost Contributors
*/
#include <gtest/gtest.h>
#include <xgboost/host_device_vector.h>
#include "../../../src/data/array_interface.h"
#include "../helpers.h"
namespace xgboost {
__global__ void SleepForTest(uint64_t *out, uint64_t duration) {
auto start = clock64();
auto t = 0;
while (t < duration) {
t = clock64() - start;
}
out[0] = t;
}
TEST(ArrayInterface, Stream) {
size_t constexpr kRows = 10, kCols = 10;
HostDeviceVector<float> storage;
auto arr_str = RandomDataGenerator{kRows, kCols, 0}.GenerateArrayInterface(&storage);
dh::CUDAStream stream;
auto j_arr = Json::Load(StringView{arr_str});
j_arr["stream"] = Integer(reinterpret_cast<int64_t>(stream.Handle()));
Json::Dump(j_arr, &arr_str);
dh::caching_device_vector<uint64_t> out(1, 0);
std::uint64_t dur = 1e9;
dh::LaunchKernel{1, 1, 0, stream.View()}(SleepForTest, out.data().get(), dur);
ArrayInterface<2> arr(arr_str);
auto t = out[0];
CHECK_GE(t, dur);
}
TEST(ArrayInterface, Ptr) {
std::vector<float> h_data(10);
ASSERT_FALSE(ArrayInterfaceHandler::IsCudaPtr(h_data.data()));
dh::safe_cuda(cudaGetLastError());
dh::device_vector<float> d_data(10);
ASSERT_TRUE(ArrayInterfaceHandler::IsCudaPtr(d_data.data().get()));
dh::safe_cuda(cudaGetLastError());
ASSERT_FALSE(ArrayInterfaceHandler::IsCudaPtr(nullptr));
dh::safe_cuda(cudaGetLastError());
}
} // namespace xgboost
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