CPU kernel work-group. More...

#include <kernel.h>

Collaboration diagram for Coal::CPUKernelWorkGroup:

Classes
struct	Context
Public Member Functions
	CPUKernelWorkGroup (CPUKernel kernel, KernelEvent event, CPUKernelEvent cpu_event, const size_t work_group_index)
	Constructor.
	~CPUKernelWorkGroup ()
void *	callArgs (std::vector< void * > &locals_to_free)
	Build a structure of arguments.
bool	run ()
	Run the work-group.
void	builtinNotFound (const std::string &name) const
	Function called when a built-in name cannot be found.
Private Member Functions
template<typename T >
void	writeImageImpl (Image2D image, int x, int y, int z, T color) const
template<typename T >
void	readImageImplI (T result, Image2D image, int x, int y, int z, uint32_t sampler) const
template<typename T >
void	readImageImplF (T result, Image2D image, float x, float y, float z, uint32_t sampler) const
template<typename T >
void	linear3D (T result, float a, float b, float c, int i0, int j0, int k0, int i1, int j1, int k1, Image3D image) const
template<typename T >
void	linear2D (T result, float a, float b, float c, int i0, int j0, int i1, int j1, Image2D image) const
Context *	getContextAddr (unsigned int index)
Private Attributes
CPUKernel *	p_kernel
CPUKernelEvent *	p_cpu_event
KernelEvent *	p_event
cl_uint	p_work_dim
size_t	p_index [MAX_WORK_DIMS]
size_t	p_max_local_id [MAX_WORK_DIMS]
size_t	p_global_id_start_offset [MAX_WORK_DIMS]
void(*	p_kernel_func_addr )(void *)
void *	p_args
Context *	p_current_context
Context	p_dummy_context
void *	p_contexts
size_t	p_stack_size
unsigned int	p_num_work_items
unsigned int	p_current_work_item
bool	p_had_barrier
Native implementation of built-in OpenCL C functions
size_t	getGlobalId (cl_uint dimindx) const
cl_uint	getWorkDim () const
size_t	getGlobalSize (cl_uint dimindx) const
size_t	getLocalSize (cl_uint dimindx) const
size_t	getLocalID (cl_uint dimindx) const
size_t	getNumGroups (cl_uint dimindx) const
size_t	getGroupID (cl_uint dimindx) const
size_t	getGlobalOffset (cl_uint dimindx) const
void	barrier (unsigned int flags)
void *	getImageData (Image2D *image, int x, int y, int z) const
void	writeImage (Image2D image, int x, int y, int z, float color) const
void	writeImage (Image2D image, int x, int y, int z, int32_t color) const
void	writeImage (Image2D image, int x, int y, int z, uint32_t color) const
void	readImage (float result, Image2D image, int x, int y, int z, uint32_t sampler) const
void	readImage (int32_t result, Image2D image, int x, int y, int z, uint32_t sampler) const
void	readImage (uint32_t result, Image2D image, int x, int y, int z, uint32_t sampler) const
void	readImage (float result, Image2D image, float x, float y, float z, uint32_t sampler) const
void	readImage (int32_t result, Image2D image, float x, float y, float z, uint32_t sampler) const
void	readImage (uint32_t result, Image2D image, float x, float y, float z, uint32_t sampler) const

Detailed Description

CPU kernel work-group.

This class represent a bulk of work-items that will be run. It is the one to actually run the kernel of its elements.

See also:: Using Clang and LLVM to Launch Kernels

Definition at line 150 of file cpu/kernel.h.

Constructor & Destructor Documentation

CPUKernelWorkGroup::CPUKernelWorkGroup	(	CPUKernel *	kernel,
		KernelEvent *	event,
		CPUKernelEvent *	cpu_event,
		const size_t *	work_group_index
	)

Constructor.

Parameters:

kernel	kernel to run
event	event containing information about the kernel run
cpu_event	CPU-specific information and cache about `event`
work_group_index	index of this work-group in the kernel

Definition at line 388 of file cpu/kernel.cpp.

References Coal::KernelEvent::global_work_offset(), p_global_id_start_offset, p_index, p_max_local_id, p_num_work_items, and p_work_dim.

CPUKernelWorkGroup::~CPUKernelWorkGroup ( )

Definition at line 413 of file cpu/kernel.cpp.

References p_cpu_event, and Coal::CPUKernelEvent::workGroupFinished().

Member Function Documentation

void CPUKernelWorkGroup::barrier ( unsigned int flags )

Definition at line 159 of file builtins.cpp.

References Coal::CPUKernelWorkGroup::Context::context, Coal::CPUKernel::function(), getContextAddr(), getWorkItemsData(), incVec(), Coal::CPUKernelWorkGroup::Context::initialized, Coal::CPUKernelWorkGroup::Context::local_id, main(), p_args, p_contexts, p_current_context, p_current_work_item, p_had_barrier, p_kernel, p_kernel_func_addr, p_max_local_id, p_num_work_items, p_stack_size, p_work_dim, and setWorkItemsData().

Referenced by barrier().

void CPUKernelWorkGroup::builtinNotFound ( const std::string & name ) const

Function called when a built-in name cannot be found.

Definition at line 248 of file builtins.cpp.

References Coal::CPUKernel::function(), and p_kernel.

Referenced by getBuiltin().

void * CPUKernelWorkGroup::callArgs ( std::vector< void * > & locals_to_free )

Build a structure of arguments.

As C doesn't support calling functions with variable arguments unknown at the compilation, this function builds the list of arguments in memory. This array will then be passed to a LLVM stub function reading it and passing its values to the actuel kernel.

See also:: Using Clang and LLVM to Launch Kernels

Parameters:

locals_to_free if this kernel takes __local arguments, they must be malloc()'ed for every work-group. They are placed in this vector to be free()'ed at the end of run().