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[NFC] Rename ext_codeplay_enqueue_native_command to ext_oneapi_enqueue_native_command #14854
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ebdbbcf
Rename codeplay extension to oneapi extension
169510e
Update SHA
26dff62
Add e2e test for level zero
7e6dc41
Update documentation to include level zero interop
a5fbfd2
Fix test
ae91acf
Merge branch 'sycl' into codeplay-to-oneapi-ext
14e0060
Update test
918fdd6
Update docs
e27e910
Merge branch 'sycl' into codeplay-to-oneapi-ext
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132 changes: 132 additions & 0 deletions
132
sycl/test-e2e/EnqueueNativeCommand/custom-command-level-zero.cpp
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| // RUN: %{build} %level_zero_options -o %t.out | ||
| // RUN: %{run} %t.out | ||
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| // REQUIRES: level_zero, level_zero_dev_kit | ||
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| #include <level_zero/ze_api.h> | ||
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| #include <iostream> | ||
| #include <sycl/backend.hpp> | ||
| #include <sycl/detail/core.hpp> | ||
| #include <sycl/interop_handle.hpp> | ||
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| using namespace sycl; | ||
| using namespace sycl::access; | ||
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| static constexpr size_t BUFFER_SIZE = 1024; | ||
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| template <typename T> class Modifier; | ||
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| template <typename T> class Init; | ||
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| template <typename BufferT, typename ValueT> | ||
| void checkBufferValues(BufferT Buffer, ValueT Value) { | ||
| auto Acc = Buffer.get_host_access(); | ||
| for (size_t Idx = 0; Idx < Acc.size(); ++Idx) { | ||
| if (Acc[Idx] != Value) { | ||
| std::cerr << "buffer[" << Idx << "] = " << Acc[Idx] | ||
| << ", expected val = " << Value << '\n'; | ||
| exit(1); | ||
| } | ||
| } | ||
| } | ||
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| template <typename DataT> | ||
| void copy(buffer<DataT, 1> &Src, buffer<DataT, 1> &Dst, queue &Q) { | ||
| Q.submit([&](handler &CGH) { | ||
| auto SrcA = Src.template get_access<mode::read>(CGH); | ||
| auto DstA = Dst.template get_access<mode::write>(CGH); | ||
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| auto Func = [=](interop_handle IH) { | ||
| auto CommandList = IH.get_native_queue<backend::ext_oneapi_level_zero>(); | ||
| auto SrcMem = IH.get_native_mem<backend::ext_oneapi_level_zero>(SrcA); | ||
| auto DstMem = IH.get_native_mem<backend::ext_oneapi_level_zero>(DstA); | ||
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| // If L0 interop becomes a real use case we should make a new UR entry | ||
| // point to propagate events into and out of the the interop func. | ||
| if (zeCommandListAppendMemoryCopy(CommandList, DstMem, SrcMem, | ||
| sizeof(DataT) * SrcA.size(), nullptr, 0, | ||
| nullptr) != ZE_RESULT_SUCCESS) | ||
| throw; | ||
| if (Q.get_backend() != IH.get_backend()) | ||
| throw; | ||
| }; | ||
| CGH.ext_oneapi_enqueue_native_command(Func); | ||
| }); | ||
| } | ||
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| template <typename DataT> void modify(buffer<DataT, 1> &B, queue &Q) { | ||
| Q.submit([&](handler &CGH) { | ||
| auto Acc = B.template get_access<mode::read_write>(CGH); | ||
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| auto Kernel = [=](item<1> Id) { Acc[Id] += 1; }; | ||
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| CGH.parallel_for<Modifier<DataT>>(Acc.size(), Kernel); | ||
| }); | ||
| } | ||
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| template <typename DataT, DataT B1Init, DataT B2Init> | ||
| void init(buffer<DataT, 1> &B1, buffer<DataT, 1> &B2, queue &Q) { | ||
| Q.submit([&](handler &CGH) { | ||
| auto Acc1 = B1.template get_access<mode::write>(CGH); | ||
| auto Acc2 = B2.template get_access<mode::write>(CGH); | ||
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| CGH.parallel_for<Init<DataT>>(BUFFER_SIZE, [=](item<1> Id) { | ||
| Acc1[Id] = B1Init; | ||
| Acc2[Id] = B2Init; | ||
| }); | ||
| }); | ||
| } | ||
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| // Check that a single host-interop-task with a buffer will work. | ||
| void test_ht_buffer(queue &Q) { | ||
| buffer<int, 1> Buffer{BUFFER_SIZE}; | ||
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| Q.submit([&](handler &CGH) { | ||
| auto Acc = Buffer.get_access<mode::write>(CGH); | ||
| auto Func = [=](interop_handle IH) { /*A no-op */ }; | ||
| CGH.ext_oneapi_enqueue_native_command(Func); | ||
| }); | ||
| } | ||
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| // A test that uses level_zero interop to copy data from buffer A to buffer B, | ||
| // by getting level_zero ptrs and calling the cuMemcpyWithAsync. Then run a SYCL | ||
| // kernel that modifies the data in place for B, e.g. increment one, then copy | ||
| // back to buffer A. Run it on a loop, to ensure the dependencies and the | ||
| // reference counting of the objects is not leaked. | ||
| void test_ht_kernel_dependencies(queue &Q) { | ||
| static constexpr int COUNT = 4; | ||
| buffer<int, 1> Buffer1{BUFFER_SIZE}; | ||
| buffer<int, 1> Buffer2{BUFFER_SIZE}; | ||
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| // Init the buffer with a'priori invalid data. | ||
| init<int, -1, -2>(Buffer1, Buffer2, Q); | ||
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| // Repeat a couple of times. | ||
| for (size_t Idx = 0; Idx < COUNT; ++Idx) { | ||
| copy(Buffer1, Buffer2, Q); | ||
| modify(Buffer2, Q); | ||
| copy(Buffer2, Buffer1, Q); | ||
| } | ||
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| checkBufferValues(Buffer1, COUNT - 1); | ||
| checkBufferValues(Buffer2, COUNT - 1); | ||
| } | ||
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| void tests(queue &Q) { | ||
| test_ht_buffer(Q); | ||
| test_ht_kernel_dependencies(Q); | ||
| } | ||
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| int main() { | ||
| queue Q([](sycl::exception_list ExceptionList) { | ||
| if (ExceptionList.size() != 1) { | ||
| std::cerr << "Should be one exception in exception list" << std::endl; | ||
| std::abort(); | ||
| } | ||
| std::rethrow_exception(*ExceptionList.begin()); | ||
| }); | ||
| tests(Q); | ||
| std::cout << "Test PASSED" << std::endl; | ||
| return 0; | ||
| } | ||
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In order to make this entry point more performant on L0 we would need something like the previous host task extensions so we can pass in and out events to the
zecall.As it stands there is no point making this more performant for L0 since no one that we are aware of are using L0 interop in SYCL.
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????
We have had a SYCL Level Zero interop specification for a long time and many people are using it.