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[SYCL] Optimize use of shared_ptr on kernel enqueue fast path #17569

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merged 9 commits into from
Mar 26, 2025
Merged

[SYCL] Optimize use of shared_ptr on kernel enqueue fast path #17569

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a564285
[SYCL] Optimize local shared_ptr variables
slawekptak Mar 21, 2025
66e86dc
[SYCL] Use std::move on EventImpl
slawekptak Mar 21, 2025
19fa11c
[SYCL] Pass ContextImplPtr by reference
slawekptak Mar 21, 2025
8083742
Address review comments
slawekptak Mar 21, 2025
de9839e
Use platform local var instead of a temp object
slawekptak Mar 24, 2025
558041f
Use device local var instead of a temp object
slawekptak Mar 24, 2025
bdcd30e
Address review comment. Pass the device_impl shared_ptr reference
slawekptak Mar 25, 2025
2b15bab
Revert the getDeviceFromHandler removal. This change will be introduced
slawekptak Mar 25, 2025
4612758
Remove unused graph_impl function.
slawekptak Mar 25, 2025
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11 changes: 6 additions & 5 deletions sycl/source/detail/program_manager/program_manager.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -73,7 +73,7 @@ ProgramManager &ProgramManager::getInstance() {
}

static ur_program_handle_t
createBinaryProgram(const ContextImplPtr Context,
createBinaryProgram(const ContextImplPtr &Context,
const std::vector<device> &Devices,
const uint8_t **Binaries, size_t *Lengths,
const std::vector<ur_program_metadata_t> &Metadata) {
Expand Down Expand Up @@ -104,7 +104,7 @@ createBinaryProgram(const ContextImplPtr Context,
return Program;
}

static ur_program_handle_t createSpirvProgram(const ContextImplPtr Context,
static ur_program_handle_t createSpirvProgram(const ContextImplPtr &Context,
const unsigned char *Data,
size_t DataLen) {
ur_program_handle_t Program = nullptr;
Expand Down Expand Up @@ -369,7 +369,8 @@ static void appendCompileOptionsFromImage(std::string &CompileOpts,

appendCompileOptionsForGRFSizeProperties(CompileOpts, Img, isEsimdImage);

const auto PlatformImpl = detail::getSyclObjImpl(Devs[0].get_platform());
platform Platform = Devs[0].get_platform();
const auto &PlatformImpl = detail::getSyclObjImpl(Platform);

// Add optimization flags.
auto str = getUint32PropAsOptStr(Img, "optLevel");
Expand Down Expand Up @@ -945,7 +946,7 @@ ur_program_handle_t ProgramManager::getBuiltURProgram(
}

std::vector<ur_device_handle_t> URDevices;
for (auto Dev : Devs)
for (auto &Dev : Devs)
URDevices.push_back(getSyclObjImpl(Dev).get()->getHandleRef());

ProgramPtr BuiltProgram =
Expand Down Expand Up @@ -1700,7 +1701,7 @@ static inline bool isDeviceImageCompressed(sycl_device_binary Bin) {
}

ProgramManager::ProgramPtr ProgramManager::build(
ProgramPtr Program, const ContextImplPtr Context,
ProgramPtr Program, const ContextImplPtr &Context,
const std::string &CompileOptions, const std::string &LinkOptions,
std::vector<ur_device_handle_t> &Devices, uint32_t DeviceLibReqMask,
const std::vector<ur_program_handle_t> &ExtraProgramsToLink,
Expand Down
2 changes: 1 addition & 1 deletion sycl/source/detail/program_manager/program_manager.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -350,7 +350,7 @@ class ProgramManager {

using ProgramPtr = std::unique_ptr<std::remove_pointer_t<ur_program_handle_t>,
decltype(&::urProgramRelease)>;
ProgramPtr build(ProgramPtr Program, const ContextImplPtr Context,
ProgramPtr build(ProgramPtr Program, const ContextImplPtr &Context,
const std::string &CompileOptions,
const std::string &LinkOptions,
std::vector<ur_device_handle_t> &Devices,
Expand Down
4 changes: 2 additions & 2 deletions sycl/source/detail/queue_impl.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -126,7 +126,7 @@ static event prepareSYCLEventAssociatedWithQueue(
static event createDiscardedEvent() {
EventImplPtr EventImpl =
std::make_shared<event_impl>(event_impl::HES_Discarded);
return createSyclObjFromImpl<event>(EventImpl);
return createSyclObjFromImpl<event>(std::move(EventImpl));
}

const std::vector<event> &
Expand Down Expand Up @@ -386,7 +386,7 @@ event queue_impl::submit_impl(const detail::type_erased_cgfo_ty &CGF,

addEvent(Event);

auto EventImpl = detail::getSyclObjImpl(Event);
const auto &EventImpl = detail::getSyclObjImpl(Event);
for (auto &Stream : Streams) {
// We don't want stream flushing to be blocking operation that is why submit
// a host task to print stream buffer. It will fire up as soon as the kernel
Expand Down