device default_device()
{
static device dev;
if (!dev.id())
{
platform pl = default_platform();
std::vector<device> devices = pl.devices(device::accelerator);
if (devices.size()) dev = devices[0];
else // no accelerators found, try all
{
std::vector<device> devices = pl.devices(device::all);
if (devices.size()) dev = devices[0];
else OVXX_DO_THROW(std::runtime_error("No OpenCL devices found."));
}
}
return dev;
}
static int
run_platform(radiant_t radiant)
{
radiant_platform_t platform;
int status;
/* Initialize Radiant */
platform = radiant_platform_create(radiant, NULL);
if (platform == NULL)
{
status = radiant_engine_errno(radiant);
fprintf(stderr, "Unable to create platform (%d).\n", status);
return status;
}
status = default_platform(platform);
/* Clean up. */
radiant_platform_destroy(platform);
return status;
}
cl::Device getDevice() {
// init platforms
std::vector<cl::Platform> platforms;
cl::Platform::get(&platforms);
// select default platform
cl::Platform default_platform;
for (auto &platform : platforms) {
std::string platformVersion = platform.getInfo<CL_PLATFORM_VERSION>();
if (platformVersion.find("OpenCL 2.") != std::string::npos) {
default_platform = platform;
break;
}
}
if (default_platform() == nullptr) {
throw std::runtime_error("No OpenCL 2.x platform found.");
}
// init devices
std::vector<cl::Device> all_devices;
default_platform.getDevices(CL_DEVICE_TYPE_ALL, &all_devices);
// select default device
cl::Device default_device;
for (auto &device : all_devices) {
if (device()) {
default_device = device;
break;
}
}
if (default_device() == nullptr) {
throw std::runtime_error("No device found.");
}
// init context
return default_device;
}
