OpenCL Context

Detailed Description

Initialization for OpenCL Context:

1. create context
2. Find OpenCL platforms and devices available
3. set up command queue
4. set architecture dependent kernel parameters

Classes
class	stan::math::opencl_context_base
	The opencl_context_base class represents an OpenCL context in the standard Meyers singleton design pattern. More...
struct	stan::math::opencl_context_base::tuning_struct
class	stan::math::opencl_context
	The API to access the methods and values in opencl_context_base. More...

Functions
	stan::math::opencl_context_base::opencl_context_base (int platform_id=1, int device_id=1)
	Construct the opencl_context by initializing the OpenCL context, devices, command queues, and kernel groups.
std::string	stan::math::opencl_context::description () const
	Returns the description of the OpenCL platform and device that is used.
std::string	stan::math::opencl_context::capabilities () const
	Returns the description of the OpenCL platforms and devices that are available.
cl::Context &	stan::math::opencl_context::context () noexcept
	Returns the reference to the OpenCL context.
cl::CommandQueue &	stan::math::opencl_context::queue () noexcept
	Returns the reference to the active OpenCL command queue for the device.
opencl_context_base::map_base_opts &	stan::math::opencl_context::base_opts () noexcept
	Returns a copy of the map of kernel defines.
int	stan::math::opencl_context::max_thread_block_size () noexcept
	Returns the maximum thread block size defined by CL_DEVICE_MAX_WORK_GROUP_SIZE for the device in the context.
opencl_context_base::tuning_struct &	stan::math::opencl_context::tuning_opts () noexcept
	Returns the thread block size for the Cholesky Decompositions L_11.
std::vector< cl::Device > &	stan::math::opencl_context::device () noexcept
	Returns a vector containing the OpenCL device used to create the context.
std::vector< cl::Platform > &	stan::math::opencl_context::platform () noexcept
	Returns a vector containing the OpenCL platform used to create the context.
bool &	stan::math::opencl_context::in_order () noexcept
	Return a bool representing whether the write to the OpenCL device are blocking.