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分享这个社区有点冷，发个C和C++的查询平台和设备的简单实例代码~
//#include <QCoreApplication> #include <stdio.h> #include <stdlib.h> #include <CL/cl.h> //static cl_int AllocateAndGetPlatformInfoString(cl_platform_id platformId, // cl_platform_info param_name, // char** pStr) //{ // cl_int errorCode = CL_SUCCESS; // size_t size = 0; // char* str = NULL; // if (errorCode == CL_SUCCESS) // { // errorCode = clGetPlatformInfo(platformId, param_name, 0, NULL, &size); // } // if (errorCode == CL_SUCCESS) // { // if (size != 0) // { // str = (char*)malloc(size); // if (str == NULL) // { // errorCode = CL_OUT_OF_HOST_MEMORY; // } // } // } // if (errorCode == CL_SUCCESS) // { // errorCode = clGetPlatformInfo(platformId, param_name, size, str, NULL); // } // if (errorCode != CL_SUCCESS) // { // free(str); // } // else // { // *pStr = str; // } // return errorCode; //} //static cl_int PrintPlatformInfoSummary(cl_platform_id platformId) //{ // cl_int errorCode = CL_SUCCESS; // char* platformName = NULL; // char* platformVendor = NULL; // char* platformVersion = NULL; // errorCode |= AllocateAndGetPlatformInfoString(platformId, CL_PLATFORM_NAME, // &platformName); // errorCode |= AllocateAndGetPlatformInfoString( // platformId, CL_PLATFORM_VENDOR, &platformVendor); // errorCode |= AllocateAndGetPlatformInfoString( // platformId, CL_PLATFORM_VERSION, &platformVersion); // printf("\tName: %s\n", platformName); // printf("\tVendor: %s\n", platformVendor); // printf("\tDriver Version: %s\n", platformVersion); // free(platformName); // free(platformVendor); // free(platformVersion); // return errorCode; //} //static cl_int AllocateAndGetDeviceInfoString(cl_device_id device, // cl_device_info param_name, // char** pStr) //{ // cl_int errorCode = CL_SUCCESS; // size_t size = 0; // char* str = NULL; // if (errorCode == CL_SUCCESS) // { // errorCode = clGetDeviceInfo(device, param_name, 0, NULL, &size); // } // if (errorCode == CL_SUCCESS) // { // if (size != 0) // { // str = (char*)malloc(size); // if (str == NULL) // { // errorCode = CL_OUT_OF_HOST_MEMORY; // } // } // } // if (errorCode == CL_SUCCESS) // { // errorCode = clGetDeviceInfo(device, param_name, size, str, NULL); // } // if (errorCode != CL_SUCCESS) // { // free(str); // } // else // { // *pStr = str; // } // return errorCode; //} //static void PrintDeviceType(const char* label, cl_device_type type) //{ // printf("%s%s%s%s%s%s\n", label, // (type & CL_DEVICE_TYPE_DEFAULT) ? "DEFAULT " : "", // (type & CL_DEVICE_TYPE_CPU) ? "CPU " : "", // (type & CL_DEVICE_TYPE_GPU) ? "GPU " : "", // (type & CL_DEVICE_TYPE_ACCELERATOR) ? "ACCELERATOR " : "", // (type & CL_DEVICE_TYPE_CUSTOM) ? "CUSTOM " : ""); //} //static cl_int PrintDeviceInfoSummary(cl_device_id* devices, cl_uint numDevices) //{ // cl_int errorCode = CL_SUCCESS; // cl_device_type deviceType; // char* deviceName = NULL; // char* deviceVendor = NULL; // char* deviceVersion = NULL; // char* deviceProfile = NULL; // char* driverVersion = NULL; // cl_uint i = 0; // for (i = 0; i < numDevices; i++) // { // errorCode |= clGetDeviceInfo(devices[i], CL_DEVICE_TYPE, // sizeof(deviceType), &deviceType, NULL); // errorCode |= AllocateAndGetDeviceInfoString(devices[i], CL_DEVICE_NAME, // &deviceName); // errorCode |= AllocateAndGetDeviceInfoString( // devices[i], CL_DEVICE_VENDOR, &deviceVendor); // errorCode |= AllocateAndGetDeviceInfoString( // devices[i], CL_DEVICE_VERSION, &deviceVersion); // errorCode |= AllocateAndGetDeviceInfoString( // devices[i], CL_DEVICE_PROFILE, &deviceProfile); // errorCode |= AllocateAndGetDeviceInfoString( // devices[i], CL_DRIVER_VERSION, &driverVersion); // if (errorCode == CL_SUCCESS) // { // printf("Device[%u]:\n", i); // PrintDeviceType("\tType: ", deviceType); // printf("\tName: %s\n", deviceName); // printf("\tVendor: %s\n", deviceVendor); // printf("\tDevice Version: %s\n", deviceVersion); // printf("\tDevice Profile: %s\n", deviceProfile); // printf("\tDriver Version: %s\n", driverVersion); // } // else // { // fprintf(stderr, "Error getting device info for device %u.\n", i); // } // free(deviceName); // free(deviceVendor); // free(deviceVersion); // free(deviceProfile); // free(driverVersion); // } // return errorCode; //} //int main0(int argc, char** argv) //{ // cl_uint numPlatforms = 0; // clGetPlatformIDs(0, NULL, &numPlatforms); // printf("Enumerated %u platforms.\n\n", numPlatforms); // cl_platform_id* platforms = // (cl_platform_id*)malloc(numPlatforms * sizeof(cl_platform_id)); // clGetPlatformIDs(numPlatforms, platforms, NULL); // cl_uint i = 0; // for (i = 0; i < numPlatforms; i++) // { // printf("Platform[%u]:\n", i); // PrintPlatformInfoSummary(platforms[i]); // cl_uint numDevices = 0; // clGetDeviceIDs(platforms[i], CL_DEVICE_TYPE_ALL, 0, NULL, &numDevices); // cl_device_id* devices = // (cl_device_id*)malloc(numDevices * sizeof(cl_device_id)); // clGetDeviceIDs(platforms[i], CL_DEVICE_TYPE_ALL, numDevices, devices, // NULL); // PrintDeviceInfoSummary(devices, numDevices); // printf("\n"); // free(devices); // } // free(platforms); // printf("Done.\n"); // return 0; //} //----------------------------------------------------------------------------------- //----------------------------------------------------------------------------------- //----------------------------------------------------------------------------------- //----------------------------------------------------------------------------------- //----------------------------------------------------------------------------------- //----------------------------------------------------------------------------------- #include <iostream> #include <string> #include <vector> #include <CL/opencl.hpp> static cl_int PrintPlatformInfoSummary(cl::Platform platform) { std::cout << "\tName: " << platform.getInfo<CL_PLATFORM_NAME>() << "\n"; std::cout << "\tVendor: " << platform.getInfo<CL_PLATFORM_VENDOR>() << "\n"; std::cout << "\tDriver Version: " << platform.getInfo<CL_PLATFORM_VERSION>() << "\n"; return CL_SUCCESS; } static void PrintDeviceType(const std::string& label, cl_device_type type) { std::cout << label << ((type & CL_DEVICE_TYPE_DEFAULT) ? "DEFAULT " : "") << ((type & CL_DEVICE_TYPE_CPU) ? "CPU " : "") << ((type & CL_DEVICE_TYPE_GPU) ? "GPU " : "") << ((type & CL_DEVICE_TYPE_ACCELERATOR) ? "ACCELERATOR " : "") << ((type & CL_DEVICE_TYPE_CUSTOM) ? "CUSTOM " : "") << "\n"; } static cl_int PrintDeviceInfoSummary(const std::vector<cl::Device> devices) { for (size_t i = 0; i < devices.size(); i++) { std::cout << "Device[" << i << "]:\n"; cl_device_type deviceType = devices[i].getInfo<CL_DEVICE_TYPE>(); PrintDeviceType("\tType: ", deviceType); std::cout << "\tName: " << devices[i].getInfo<CL_DEVICE_NAME>() << "\n"; std::cout << "\tVendor: " << devices[i].getInfo<CL_DEVICE_VENDOR>() << "\n"; std::cout << "\tDevice Version: " << devices[i].getInfo<CL_DEVICE_VERSION>() << "\n"; std::cout << "\tOCL C Version: " << devices[i].getInfo<CL_DEVICE_OPENCL_C_VERSION>() << "\n"; std::cout << "\tDevice Profile: " << devices[i].getInfo<CL_DEVICE_PROFILE>() << "\n"; std::cout << "\tDriver Version: " << devices[i].getInfo<CL_DRIVER_VERSION>() << "\n"; std::cout << "\tDevices Units: " << devices[i].getInfo<CL_DEVICE_MAX_COMPUTE_UNITS>() << "\n"; std::cout << "\tDevices MaxMem: " << devices[i].getInfo<CL_DEVICE_MAX_MEM_ALLOC_SIZE>()/1024/1024 << "MB\n"; std::cout << "\tDevices LocMem: " << devices[i].getInfo<CL_DEVICE_LOCAL_MEM_SIZE>()/1024 << "KB\n"; // std::cout << "\tDevice Extensions: " // << devices[i].getInfo<CL_DEVICE_EXTENSIONS>() << "\n"; } return CL_SUCCESS; } int main(int argc, char** argv) { std::vector<cl::Platform> platforms; cl::Platform::get(&platforms); std::cout << "Enumerated " << platforms.size() << " platforms.\n\n"; for (size_t i = 0; i < platforms.size(); i++) { std::cout << "Platform[" << i << "]:\n"; PrintPlatformInfoSummary(platforms[i]); std::vector<cl::Device> devices; platforms[i].getDevices(CL_DEVICE_TYPE_ALL, &devices); PrintDeviceInfoSummary(devices); std::cout << "\n"; } std::cout << "Done.\n"; return 0; }
Qt pro的配置增加一下两行，配合include和lib LIBS += -LD:/XXXXXXXX/OpenCL-SDK-v2023.04.17-Win-x64/lib/ -lOpenCL INCLUDEPATH += D:/XXXXXXXX/OpenCL-SDK-v2023.04.17-Win-x64/include
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