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#include <cstdlib>
#include <iostream>
#include <vector>
#include <string>
#include "clew.h"
using namespace std;
int main()
{
const char* dllname = "libOpenCL.so"; // on Linux
// const char* dllname = "OpenCL.dll"; // from GPU driver.
// const char* dllname = "amdocl.dll"; // from AMD SDK
// const char* dllname = "intelocl.dll"; // from Intel SDK
int status = clewInit(dllname);
if (status < 0)
{
cout << "failed to load" << endl;
return EXIT_FAILURE;
}
cout << "OpenCL.dll loaded successfully." << endl;
cl_uint platformCount = 0;
clGetPlatformIDs(0, NULL, &platformCount);
cout << "number of platforms: " << platformCount << endl;
vector<cl_platform_id> platformIDs(platformCount);
if (clGetPlatformIDs(platformCount, &platformIDs[0], NULL) != CL_SUCCESS)
{
cout << "failed to get platform IDs" << endl;
return EXIT_FAILURE;
}
for (size_t i = 0, n = platformIDs.size(); i < n; ++i)
{
cout << "* platform (ID=" << platformIDs[i] << ")" << endl;
string param(100, '\0');
if (clGetPlatformInfo(platformIDs[i], CL_PLATFORM_PROFILE, param.size(), ¶m[0], NULL) == CL_SUCCESS)
cout << " profile: " << param.c_str() << endl;
if (clGetPlatformInfo(platformIDs[i], CL_PLATFORM_VERSION, param.size(), ¶m[0], NULL) == CL_SUCCESS)
cout << " version: " << param.c_str() << endl;
if (clGetPlatformInfo(platformIDs[i], CL_PLATFORM_NAME, param.size(), ¶m[0], NULL) == CL_SUCCESS)
cout << " name: " << param.c_str() << endl;
if (clGetPlatformInfo(platformIDs[i], CL_PLATFORM_VENDOR, param.size(), ¶m[0], NULL) == CL_SUCCESS)
cout << " vendor: " << param.c_str() << endl;
if (clGetPlatformInfo(platformIDs[i], CL_PLATFORM_EXTENSIONS, param.size(), ¶m[0], NULL) == CL_SUCCESS)
cout << " extensions: " << param.c_str() << endl;
cl_uint deviceCount = 0;
clGetDeviceIDs(platformIDs[i], CL_DEVICE_TYPE_ALL, 0, NULL, &deviceCount);
cout << " number of devices: " << deviceCount << endl;
vector<cl_device_id> deviceIDs(deviceCount);
if (clGetDeviceIDs(platformIDs[i], CL_DEVICE_TYPE_ALL, deviceCount, &deviceIDs[0], NULL) != CL_SUCCESS)
continue;
for (size_t j = 0; j < deviceIDs.size(); ++j)
{
cout << " * device (ID=" << deviceIDs[j] << ")" << endl;
if (clGetDeviceInfo(deviceIDs[j], CL_DEVICE_VENDOR, param.size(), ¶m[0], NULL) == CL_SUCCESS)
cout << " vendor: " << param.c_str() << endl;
if (clGetDeviceInfo(deviceIDs[j], CL_DEVICE_VERSION, param.size(), ¶m[0], NULL) == CL_SUCCESS)
cout << " version: " << param.c_str() << endl;
if (clGetDeviceInfo(deviceIDs[j], CL_DRIVER_VERSION, param.size(), ¶m[0], NULL) == CL_SUCCESS)
cout << " driver version: " << param.c_str() << endl;
}
}
return EXIT_SUCCESS;
}
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