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backend.hpp File Reference

Implementations of the OpenCL backend, where all contexts are stored in. More...

`#include <vector>`
`#include "viennacl/ocl/context.hpp"`
`#include "viennacl/ocl/enqueue.hpp"`

Go to the source code of this file.

## Classes

class | viennacl::ocl::backend< dummy >
| A backend that provides contexts for ViennaCL objects (vector, matrix, etc.) More...

## Namespaces

| viennacl
| Main namespace in ViennaCL. Holds all the basic types such as vector, matrix, etc. and defines operations upon them.
| viennacl::ocl
| OpenCL backend. Manages platforms, contexts, buffers, kernels, etc.

## Functions

viennacl::ocl::context & | viennacl::ocl::current_context ()
| Convenience function for returning the current context. More...
void | viennacl::ocl::switch_context (long i)
| Convenience function for switching the current context. More...
viennacl::ocl::context & | viennacl::ocl::get_context (long i)
| Convenience function for returning the current context. More...
void | viennacl::ocl::setup_context (long i, std::vector< cl_device_id > const &devices)
| Convenience function for setting devices for a context. More...
void | viennacl::ocl::setup_context (long i, viennacl::ocl::device const &device)
| Convenience function for setting devices for a context. More...
void | viennacl::ocl::setup_context (long i, cl_context c, std::vector< cl_device_id > const &devices, std::map< cl_device_id, std::vector< cl_command_queue > > const &queues)
| Convenience function for setting up a context in ViennaCL from an existing OpenCL context. More...
void | viennacl::ocl::setup_context (long i, cl_context c, std::vector< cl_device_id > const &devices, std::vector< cl_command_queue > const &queues)
| Convenience function for setting up a context in ViennaCL from an existing OpenCL context. More...
void | viennacl::ocl::setup_context (long i, cl_context c, cl_device_id d, cl_command_queue q)
| Convenience function for setting up a context in ViennaCL from an existing OpenCL context. More...
void | viennacl::ocl::set_context_device_type (long i, cl_device_type dev_type)
| Convenience function for setting the default device type for a context. More...
void | viennacl::ocl::set_context_device_type (long i, viennacl::ocl::gpu_tag)
| Convenience function for setting the default device type for a context to GPUs. More...
void | viennacl::ocl::set_context_device_type (long i, viennacl::ocl::cpu_tag)
| Convenience function for setting the default device type for a context to CPUs. More...
void | viennacl::ocl::set_context_device_type (long i, viennacl::ocl::default_tag)
| Convenience function for setting the default device type for a context to the default OpenCL device type. More...
void | viennacl::ocl::set_context_device_type (long i, viennacl::ocl::accelerator_tag)
| Convenience function for setting the default device type for a context to accelerators. More...
void | viennacl::ocl::set_context_device_num (long i, vcl_size_t num)
| Convenience function for setting the number of default devices per context. More...
void | viennacl::ocl::set_context_platform_index (long i, vcl_size_t pf_index)
| Convenience function for setting the platform index. More...
viennacl::ocl::command_queue & | viennacl::ocl::get_queue ()
| Convenience function for getting the default queue for the currently active device in the active context. More...
viennacl::ocl::command_queue & | viennacl::ocl::get_queue (viennacl::ocl::device d, unsigned int queue_id=0)
| Convenience function for getting the queue for a particular device in the current active context. More...
viennacl::ocl::command_queue & | viennacl::ocl::get_queue (cl_device_id dev_id, unsigned int queue_id=0)
| Convenience function for getting the queue for a particular device in the current active context. More...
viennacl::ocl::kernel & | viennacl::ocl::get_kernel (std::string const &prog_name, std::string const &kernel_name)
| Convenience function for getting the kernel for a particular program from the current active context. More...
void | viennacl::ocl::switch_device (viennacl::ocl::device &d)
| Convenience function for switching the active device in the current context. More...
viennacl::ocl::device const & | viennacl::ocl::current_device ()
| Convenience function for returning the active device in the current context. More...

## Detailed Description

Implementations of the OpenCL backend, where all contexts are stored in.

Definition in file backend.hpp.