1，不用 roctracer 的普通场景
mt.cpp
/* Copyright (c) 2018-2022 Advanced Micro Devices, Inc.Permission is hereby granted, free of charge, to any person obtaining a copyof this software and associated documentation files (the "Software"), to dealin the Software without restriction, including without limitation the rightsto use, copy, modify, merge, publish, distribute, sublicense, and/or sellcopies of the Software, and to permit persons to whom the Software isfurnished to do so, subject to the following conditions:The above copyright notice and this permission notice shall be included inall copies or substantial portions of the Software.THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS ORIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THEAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHERLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS INTHE SOFTWARE. */#include <iostream>// hip header file
#include <hip/hip_runtime.h>#define HIP_CALL(call) \do { \hipError_t err = call; \if (err != hipSuccess) { \fprintf(stderr, "%s\n", hipGetErrorString(err)); \abort(); \} \} while (0)#define WIDTH 1024#define NUM (WIDTH * WIDTH)#define THREADS_PER_BLOCK_X 4
#define THREADS_PER_BLOCK_Y 4
#define THREADS_PER_BLOCK_Z 1// Device (Kernel) function, it must be void
__global__ void matrixTranspose(float* out, float* in, const int width) {int x = hipBlockDim_x * hipBlockIdx_x + hipThreadIdx_x;int y = hipBlockDim_y * hipBlockIdx_y + hipThreadIdx_y;out[y * width + x] = in[x * width + y];
}// CPU implementation of matrix transpose
void matrixTransposeCPUReference(float* output, float* input, const unsigned int width) {for (unsigned int j = 0; j < width; j++) {for (unsigned int i = 0; i < width; i++) {output[i * width + j] = input[j * width + i];}}
}int main() {float* Matrix;float* TransposeMatrix;float* cpuTransposeMatrix;float* gpuMatrix;float* gpuTransposeMatrix;hipDeviceProp_t devProp;HIP_CALL(hipGetDeviceProperties(&devProp, 0));std::cerr << "Device name " << devProp.name << std::endl;int i;int errors;Matrix = (float*)malloc(NUM * sizeof(float));TransposeMatrix = (float*)malloc(NUM * sizeof(float));cpuTransposeMatrix = (float*)malloc(NUM * sizeof(float));// initialize the input datafor (i = 0; i < NUM; i++) {Matrix[i] = (float)i * 10.0f;}// allocate the memory on the device sideHIP_CALL(hipMalloc((void**)&gpuMatrix, NUM * sizeof(float)));HIP_CALL(hipMalloc((void**)&gpuTransposeMatrix, NUM * sizeof(float)));uint32_t iterations = 100;while (iterations-- > 0) {std::cerr << "## Iteration (" << iterations << ") #################" << std::endl;// Memory transfer from host to deviceHIP_CALL(hipMemcpy(gpuMatrix, Matrix, NUM * sizeof(float), hipMemcpyHostToDevice));// Lauching kernel from hosthipLaunchKernelGGL(matrixTranspose, dim3(WIDTH / THREADS_PER_BLOCK_X, WIDTH / THREADS_PER_BLOCK_Y),dim3(THREADS_PER_BLOCK_X, THREADS_PER_BLOCK_Y), 0, 0, gpuTransposeMatrix, gpuMatrix, WIDTH);HIP_CALL(hipMemcpy(TransposeMatrix, gpuTransposeMatrix, NUM * sizeof(float), hipMemcpyDeviceToHost));// CPU MatrixTranspose computationmatrixTransposeCPUReference(cpuTransposeMatrix, Matrix, WIDTH);// verify the resultserrors = 0;double eps = 1.0E-6;for (i = 0; i < NUM; i++) {if (std::abs(TransposeMatrix[i] - cpuTransposeMatrix[i]) > eps) {errors++;}}if (errors != 0) {fprintf(stderr, "FAILED: %d errors\n", errors);} else {fprintf(stderr, "PASSED!\n");}}// free the resources on device sideHIP_CALL(hipFree(gpuMatrix));HIP_CALL(hipFree(gpuTransposeMatrix));// free the resources on host sidefree(Matrix);free(TransposeMatrix);free(cpuTransposeMatrix);return errors;
}编译：
$ hipcc mt.cpp -o mt
$ ./mt xxx
不会产生文件；
2，加入roctracer的源文件
MatrixTranspose.cpp：
/* Copyright (c) 2018-2022 Advanced Micro Devices, Inc.Permission is hereby granted, free of charge, to any person obtaining a copyof this software and associated documentation files (the "Software"), to dealin the Software without restriction, including without limitation the rightsto use, copy, modify, merge, publish, distribute, sublicense, and/or sellcopies of the Software, and to permit persons to whom the Software isfurnished to do so, subject to the following conditions:The above copyright notice and this permission notice shall be included inall copies or substantial portions of the Software.THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS ORIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THEAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHERLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS INTHE SOFTWARE. */#include <iostream>// hip header file
#include <hip/hip_runtime.h>
#include "roctracer_ext.h"
// roctx header file
#include <roctx.h>#define HIP_CALL(call) \do { \hipError_t err = call; \if (err != hipSuccess) { \fprintf(stderr, "%s\n", hipGetErrorString(err)); \abort(); \} \} while (0)#define WIDTH 1024#define NUM (WIDTH * WIDTH)#define THREADS_PER_BLOCK_X 4
#define THREADS_PER_BLOCK_Y 4
#define THREADS_PER_BLOCK_Z 1// Device (Kernel) function, it must be void
__global__ void matrixTranspose(float* out, float* in, const int width) {int x = hipBlockDim_x * hipBlockIdx_x + hipThreadIdx_x;int y = hipBlockDim_y * hipBlockIdx_y + hipThreadIdx_y;out[y * width + x] = in[x * width + y];
}// CPU implementation of matrix transpose
void matrixTransposeCPUReference(float* output, float* input, const unsigned int width) {for (unsigned int j = 0; j < width; j++) {for (unsigned int i = 0; i < width; i++) {output[i * width + j] = input[j * width + i];}}
}int main() {float* Matrix;float* TransposeMatrix;float* cpuTransposeMatrix;float* gpuMatrix;float* gpuTransposeMatrix;hipDeviceProp_t devProp;HIP_CALL(hipGetDeviceProperties(&devProp, 0));std::cerr << "Device name " << devProp.name << std::endl;int i;int errors;Matrix = (float*)malloc(NUM * sizeof(float));TransposeMatrix = (float*)malloc(NUM * sizeof(float));cpuTransposeMatrix = (float*)malloc(NUM * sizeof(float));// initialize the input datafor (i = 0; i < NUM; i++) {Matrix[i] = (float)i * 10.0f;}// allocate the memory on the device sideHIP_CALL(hipMalloc((void**)&gpuMatrix, NUM * sizeof(float)));HIP_CALL(hipMalloc((void**)&gpuTransposeMatrix, NUM * sizeof(float)));uint32_t iterations = 100;while (iterations-- > 0) {std::cerr << "## Iteration (" << iterations << ") #################" << std::endl;// Memory transfer from host to deviceHIP_CALL(hipMemcpy(gpuMatrix, Matrix, NUM * sizeof(float), hipMemcpyHostToDevice));roctxMark("before hipLaunchKernel");int rangeId = roctxRangeStart("hipLaunchKernel range");roctxRangePush("hipLaunchKernel");// Lauching kernel from hosthipLaunchKernelGGL(matrixTranspose, dim3(WIDTH / THREADS_PER_BLOCK_X, WIDTH / THREADS_PER_BLOCK_Y),dim3(THREADS_PER_BLOCK_X, THREADS_PER_BLOCK_Y), 0, 0, gpuTransposeMatrix, gpuMatrix, WIDTH);roctxMark("after hipLaunchKernel");// Memory transfer from device to hostroctxRangePush("hipMemcpy");HIP_CALL(hipMemcpy(TransposeMatrix, gpuTransposeMatrix, NUM * sizeof(float), hipMemcpyDeviceToHost));roctxRangePop(); // for "hipMemcpy"roctxRangePop(); // for "hipLaunchKernel"roctxRangeStop(rangeId);// CPU MatrixTranspose computationmatrixTransposeCPUReference(cpuTransposeMatrix, Matrix, WIDTH);// verify the resultserrors = 0;double eps = 1.0E-6;for (i = 0; i < NUM; i++) {if (std::abs(TransposeMatrix[i] - cpuTransposeMatrix[i]) > eps) {errors++;}}if (errors != 0) {fprintf(stderr, "FAILED: %d errors\n", errors);} else {fprintf(stderr, "PASSED!\n");}}// free the resources on device sideHIP_CALL(hipFree(gpuMatrix));HIP_CALL(hipFree(gpuTransposeMatrix));// free the resources on host sidefree(Matrix);free(TransposeMatrix);free(cpuTransposeMatrix);return errors;
}编译：
只使用hipcc无法直接编译这个源文件
需要指定include 目录和链接库：
$ hipcc ./MatrixTranspose.cpp -I /opt/rocm/include/roctracer/ -lroctx64运行：
./a.out
