[SYCL][ESIMD] Add support for local accessors to lsc API #10340
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| //==- lsc_local_accessor_block_load_store.cpp - DPC++ ESIMD on-device test ==// | ||
| // | ||
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
| // See https://llvm.org/LICENSE.txt for license information. | ||
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
| // REQUIRES: gpu-intel-pvc | ||
| // RUN: %{build} -o %t.out | ||
| // RUN: %{run} %t.out | ||
| // | ||
| // TODO: Enable the test when GPU driver is ready/fixed. | ||
| // XFAIL: opencl || windows || gpu-intel-pvc | ||
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| // UNSUPPORTED: esimd_emulator | ||
| // This test verifies usage of block_load/block_store for local_accessor. | ||
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| #include "../esimd_test_utils.hpp" | ||
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| #include <sycl/ext/intel/esimd.hpp> | ||
| #include <sycl/sycl.hpp> | ||
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| #include <iostream> | ||
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| using namespace sycl; | ||
| using namespace sycl::ext::intel::esimd; | ||
| using namespace sycl::ext::intel::experimental::esimd; | ||
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| constexpr int VL = 16; | ||
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| template <typename T> | ||
| bool test(queue Q, uint32_t LocalRange, uint32_t GlobalRange) { | ||
| std::cout << "Running case: T=" << esimd_test::type_name<T>() << std::endl; | ||
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| // The test is going to use (LocalRange * VL) elements of T type. | ||
| auto Dev = Q.get_device(); | ||
| auto DeviceSLMSize = Dev.get_info<sycl::info::device::local_mem_size>(); | ||
| if (DeviceSLMSize < LocalRange * VL * sizeof(T)) { | ||
| // Report an error - the test needs a fix. | ||
| std::cerr << "Error: Test needs more SLM memory than device has!" | ||
| << std::endl; | ||
| return false; | ||
| } | ||
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| T *Out = malloc_shared<T>(GlobalRange * VL, Q); | ||
| for (int I = 0; I < GlobalRange * VL; I++) | ||
| Out[I] = -1; | ||
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| try { | ||
| nd_range<1> NDRange{range<1>{GlobalRange}, range<1>{LocalRange}}; | ||
| Q.submit([&](handler &CGH) { | ||
| auto LocalAcc = local_accessor<T, 1>(LocalRange * VL, CGH); | ||
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| CGH.parallel_for(NDRange, [=](nd_item<1> Item) SYCL_ESIMD_KERNEL { | ||
| uint32_t GID = Item.get_global_id(0); | ||
| uint32_t LID = Item.get_local_id(0); | ||
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| simd<int, VL> IntValues(GID * 100, 1); | ||
| simd<T, VL> ValuesToSLM = IntValues; | ||
| lsc_block_store(LocalAcc, LID * VL * sizeof(T), ValuesToSLM); | ||
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| Item.barrier(); | ||
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| if (LID == 0) { | ||
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| for (int LID = 0; LID < LocalRange; LID++) { | ||
| simd<T, VL> ValuesFromSLM = | ||
| lsc_block_load<T, VL>(LocalAcc, LID * VL * sizeof(T)); | ||
| ValuesFromSLM.copy_to(Out + (GID + LID) * VL); | ||
| } // end for (int LID = 0; LID < LocalRange; LID++) | ||
| } // end if (LID == 0) | ||
| }); | ||
| }).wait(); | ||
| } catch (sycl::exception const &e) { | ||
| std::cout << "SYCL exception caught: " << e.what() << '\n'; | ||
| free(Out, Q); | ||
| return false; | ||
| } | ||
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| bool Pass = true; | ||
| for (int I = 0; I < GlobalRange * VL; I++) { | ||
| int GID = I / VL; | ||
| int LID = GID % LocalRange; | ||
| int VecElementIndex = I % VL; | ||
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| T Expected = GID * 100 + VecElementIndex; | ||
| T Computed = Out[I]; | ||
| if (Computed != Expected) { | ||
| std::cout << "Error: Out[" << I << "]:" << Computed << " != " << Expected | ||
| << ":[expected]" << std::endl; | ||
| Pass = false; | ||
| } | ||
| } | ||
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| free(Out, Q); | ||
| return Pass; | ||
| } | ||
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| int main() { | ||
| auto Q = queue{gpu_selector_v}; | ||
| auto Dev = Q.get_device(); | ||
| auto DeviceSLMSize = Dev.get_info<sycl::info::device::local_mem_size>(); | ||
| std::cout << "Running on " << Dev.get_info<sycl::info::device::name>() | ||
| << ", Local memory size available : " << DeviceSLMSize << std::endl; | ||
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| constexpr uint32_t LocalRange = 16; | ||
| constexpr uint32_t GlobalRange = LocalRange * 2; // 2 groups. | ||
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| bool Pass = true; | ||
| Pass &= test<int>(Q, LocalRange, GlobalRange); | ||
| Pass &= test<float>(Q, LocalRange, GlobalRange); | ||
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| std::cout << "Test result: " << (Pass ? "Pass" : "Fail") << std::endl; | ||
| return Pass ? 0 : 1; | ||
| } | ||
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