| //===--- opencl_test.cpp - Tests for OpenCL and the Acxxel API ------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "acxxel.h" |
| #include "gtest/gtest.h" |
| |
| #include <array> |
| #include <cstring> |
| |
| namespace { |
| |
| static const char *SaxpyKernelSource = R"( |
| __kernel void saxpyKernel(float A, __global float *X, __global float *Y, int N) { |
| int I = get_global_id(0); |
| if (I < N) |
| X[I] = A * X[I] + Y[I]; |
| } |
| )"; |
| |
| TEST(OpenCL, Saxpy) { |
| constexpr size_t Length = 3; |
| |
| float A = 2.f; |
| std::array<float, Length> X = {{0.f, 1.f, 2.f}}; |
| std::array<float, Length> Y = {{3.f, 4.f, 5.f}}; |
| std::array<float, Length> Expected = {{3.f, 6.f, 9.f}}; |
| |
| acxxel::Platform *OpenCL = acxxel::getOpenCLPlatform().getValue(); |
| acxxel::Stream Stream = OpenCL->createStream().takeValue(); |
| auto DeviceX = OpenCL->mallocD<float>(Length).takeValue(); |
| auto DeviceY = OpenCL->mallocD<float>(Length).takeValue(); |
| Stream.syncCopyHToD(X, DeviceX); |
| Stream.syncCopyHToD(Y, DeviceY); |
| acxxel::Program Program = |
| OpenCL |
| ->createProgramFromSource(acxxel::Span<const char>( |
| SaxpyKernelSource, std::strlen(SaxpyKernelSource))) |
| .takeValue(); |
| acxxel::Kernel Kernel = Program.createKernel("saxpyKernel").takeValue(); |
| float *RawX = static_cast<float *>(DeviceX); |
| float *RawY = static_cast<float *>(DeviceY); |
| int IntLength = Length; |
| void *Arguments[] = {&A, &RawX, &RawY, &IntLength}; |
| size_t ArgumentSizes[] = {sizeof(float), sizeof(float *), sizeof(float *), |
| sizeof(int)}; |
| EXPECT_FALSE( |
| Stream.asyncKernelLaunch(Kernel, Length, Arguments, ArgumentSizes) |
| .takeStatus() |
| .isError()); |
| Stream.syncCopyDToH(DeviceX, X); |
| EXPECT_FALSE(Stream.sync().isError()); |
| |
| EXPECT_EQ(X, Expected); |
| } |
| |
| } // namespace |