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#include <gtest/gtest.h>
#include <c10/core/DeviceGuard.h>
#include <c10/util/irange.h>
#include <c10/xpu/XPUException.h>
#include <c10/xpu/XPUStream.h>
#include <c10/xpu/test/impl/XPUTest.h>
#include <optional>
#include <thread>
#include <unordered_set>
bool has_xpu() {
return c10::xpu::device_count() > 0;
}
TEST(XPUStreamTest, CopyAndMoveTest) {
if (!has_xpu()) {
return;
}
int32_t device = -1;
sycl::queue queue;
c10::xpu::XPUStream copyStream = c10::xpu::getStreamFromPool();
{
auto s = c10::xpu::getStreamFromPool();
device = s.device_index();
queue = s.queue();
copyStream = s;
EXPECT_EQ(copyStream.device_index(), device);
EXPECT_EQ(copyStream.queue(), queue);
}
EXPECT_EQ(copyStream.device_index(), device);
EXPECT_EQ(copyStream.queue(), queue);
// Tests that moving works as expected and preserves the stream
c10::xpu::XPUStream moveStream = c10::xpu::getStreamFromPool();
{
auto s = c10::xpu::getStreamFromPool();
device = s.device_index();
queue = s.queue();
moveStream = std::move(s);
EXPECT_EQ(moveStream.device_index(), device);
EXPECT_EQ(moveStream.queue(), queue);
}
EXPECT_EQ(moveStream.device_index(), device);
EXPECT_EQ(moveStream.queue(), queue);
}
TEST(XPUStreamTest, StreamBehavior) {
if (!has_xpu()) {
return;
}
c10::xpu::XPUStream stream = c10::xpu::getStreamFromPool();
EXPECT_EQ(stream.device_type(), c10::kXPU);
c10::xpu::setCurrentXPUStream(stream);
c10::xpu::XPUStream cur_stream = c10::xpu::getCurrentXPUStream();
EXPECT_EQ(cur_stream, stream);
EXPECT_EQ(stream.priority(), 0);
auto [least_priority, greatest_priority] =
c10::xpu::XPUStream::priority_range();
EXPECT_EQ(least_priority, 0);
EXPECT_TRUE(greatest_priority < 0);
stream = c10::xpu::getStreamFromPool(/* isHighPriority */ true);
EXPECT_TRUE(stream.priority() < 0);
if (c10::xpu::device_count() <= 1) {
return;
}
c10::xpu::set_device(0);
stream = c10::xpu::getStreamFromPool(false, 1);
EXPECT_EQ(stream.device_index(), 1);
EXPECT_NE(stream.device_index(), c10::xpu::current_device());
}
void thread_fun(std::optional<c10::xpu::XPUStream>& cur_thread_stream) {
auto new_stream = c10::xpu::getStreamFromPool();
c10::xpu::setCurrentXPUStream(new_stream);
cur_thread_stream = {c10::xpu::getCurrentXPUStream()};
EXPECT_EQ(*cur_thread_stream, new_stream);
}
// Ensures streams are thread local
TEST(XPUStreamTest, MultithreadStreamBehavior) {
if (!has_xpu()) {
return;
}
std::optional<c10::xpu::XPUStream> s0, s1;
std::thread t0{thread_fun, std::ref(s0)};
std::thread t1{thread_fun, std::ref(s1)};
t0.join();
t1.join();
c10::xpu::XPUStream cur_stream = c10::xpu::getCurrentXPUStream();
EXPECT_NE(cur_stream, *s0);
EXPECT_NE(cur_stream, *s1);
EXPECT_NE(s0, s1);
}
// Ensure queue pool round-robin fashion
TEST(XPUStreamTest, StreamPoolRoundRobinTest) {
if (!has_xpu()) {
return;
}
std::vector<c10::xpu::XPUStream> streams{};
for ([[maybe_unused]] const auto _ : c10::irange(200)) {
streams.emplace_back(c10::xpu::getStreamFromPool());
}
std::unordered_set<sycl::queue> queue_set{};
bool hasDuplicates = false;
for (const auto i : c10::irange(streams.size())) {
auto& queue = streams[i].queue();
auto result_pair = queue_set.insert(queue);
if (!result_pair.second) { // already existed
hasDuplicates = true;
} else { // newly inserted
EXPECT_TRUE(!hasDuplicates);
}
}
EXPECT_TRUE(hasDuplicates);
auto stream = c10::xpu::getStreamFromPool(/* isHighPriority */ true);
auto result_pair = queue_set.insert(stream.queue());
EXPECT_TRUE(result_pair.second);
}
void asyncMemCopy(sycl::queue& queue, int* dst, int* src, size_t numBytes) {
queue.memcpy(dst, src, numBytes);
}
TEST(XPUStreamTest, StreamFunction) {
if (!has_xpu()) {
return;
}
constexpr int numel = 1024;
int hostData[numel];
initHostData(hostData, numel);
auto stream = c10::xpu::getStreamFromPool();
EXPECT_TRUE(stream.query());
int* deviceData = sycl::malloc_device<int>(numel, stream);
// H2D
asyncMemCopy(stream, deviceData, hostData, sizeof(int) * numel);
c10::xpu::syncStreamsOnDevice();
EXPECT_TRUE(stream.query());
clearHostData(hostData, numel);
// D2H
asyncMemCopy(stream, hostData, deviceData, sizeof(int) * numel);
c10::xpu::syncStreamsOnDevice();
validateHostData(hostData, numel);
stream = c10::xpu::getStreamFromPool(-1);
clearHostData(hostData, numel);
// D2H
asyncMemCopy(stream, hostData, deviceData, sizeof(int) * numel);
c10::xpu::syncStreamsOnDevice();
validateHostData(hostData, numel);
sycl::free(deviceData, c10::xpu::get_device_context());
}
// Verifies external streams can be created and used
TEST(XPUStreamTest, ExternalTest) {
if (!has_xpu()) {
return;
}
c10::DeviceGuard device_guard(c10::Device(c10::DeviceType::XPU, 0));
using namespace sycl::ext::oneapi::property;
sycl::queue* stream = new sycl::queue(
c10::xpu::get_device_context(),
c10::xpu::get_raw_device(0),
c10::xpu::asyncHandler,
{sycl::property::queue::in_order(), queue::priority_normal()});
at::xpu::XPUStream myStream = at::xpu::getStreamFromExternal(stream, 0);
at::xpu::setCurrentXPUStream(myStream);
at::xpu::XPUStream curStream = at::xpu::getCurrentXPUStream();
ASSERT_TRUE(curStream == myStream);
ASSERT_TRUE(&(curStream.queue()) == stream);
delete stream;
}
// Verifies different external streams can be used for different devices at the
// same time
TEST(XPUStreamTest, ExternalMultiDeviceTest) {
if (!has_xpu()) {
return;
}
if (c10::xpu::device_count() < 2)
return;
sycl::queue* stream_0 = nullptr;
sycl::queue* stream_1 = nullptr;
using namespace sycl::ext::oneapi::property;
{
c10::DeviceGuard device_guard(c10::Device(c10::DeviceType::XPU, 0));
stream_0 = new sycl::queue(
c10::xpu::get_device_context(),
c10::xpu::get_raw_device(0),
c10::xpu::asyncHandler,
{sycl::property::queue::in_order(), queue::priority_normal()});
}
{
c10::DeviceGuard device_guard(c10::Device(c10::DeviceType::XPU, 1));
stream_0 = new sycl::queue(
c10::xpu::get_device_context(),
c10::xpu::get_raw_device(1),
c10::xpu::asyncHandler,
{sycl::property::queue::in_order(), queue::priority_normal()});
}
at::xpu::XPUStream myStream0 = at::xpu::getStreamFromExternal(stream_0, 0);
at::xpu::XPUStream myStream1 = at::xpu::getStreamFromExternal(stream_1, 1);
at::xpu::setCurrentXPUStream(myStream0);
ASSERT_TRUE(at::xpu::getCurrentXPUStream(0) == myStream0);
at::xpu::setCurrentXPUStream(myStream1);
ASSERT_TRUE(at::xpu::getCurrentXPUStream(0) == myStream0);
ASSERT_TRUE(at::xpu::getCurrentXPUStream(1) == myStream1);
delete stream_0;
delete stream_1;
}
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