context(device const &d, cl_context_properties *props = 0)
{
OVXX_PRECONDITION(d.id() != 0);
cl_device_id id = d.id();
cl_int status;
impl_ = clCreateContext(props, 1, &id, context::callback, this, &status);
if (status < 0)
OVXX_DO_THROW(exception("clCreateContext", status));
}
T get_work_group_info(const device &device, cl_kernel_work_group_info info)
{
T value;
cl_int ret = clGetKernelWorkGroupInfo(m_kernel,
device.id(),
info,
sizeof(T),
&value,
0);
if(ret != CL_SUCCESS){
BOOST_THROW_EXCEPTION(runtime_exception(ret));
}
return value;
}
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;
}
cl::queue::queue(const context &__context, const device &__device) throw(cl_exception)
: queue(__context.id(),__device.id()) {
}
T get_build_info(cl_program_build_info info, const device &device) const
{
return detail::get_object_info<T>(clGetProgramBuildInfo, m_program, info, device.id());
}