clGetKernelInfo

Returns information about the kernel object.

`cl_int clGetKernelInfo (`	cl_kernel `kernel`,
	cl_kernel_info `param_name`,
	size_t `param_value_size`,
	void `*param_value`,
	size_t `*param_value_size_ret)`

Parameters

kernel

Specifies the kernel object being queried.

param_name

Specifies the information to query. The list of supported param_name types and the information returned in param_value by clGetKernelInfo is described in the table below.

param_value

A pointer to memory where the appropriate result being queried is returned. If param_value is NULL, it is ignored.

param_value_size

Used to specify the size in bytes of memory pointed to by param_value. This size must be greater than or equal to size of return type as described in the table below.

cl_kernel_info	Return Type	Info. returned in `param_value`
`CL_KERNEL_FUNCTION_NAME`	char[]	Return the kernel function name.
`CL_KERNEL_NUM_ARGS`	cl_uint	Return the number of arguments to `kernel`.
`CL_KERNEL_REFERENCE_COUNT`	cl_uint	Return the `kernel` reference count. The reference count returned should be considered immediately stale. It is unsuitable for general use in applications. This feature is provided for identifying memory leaks.
`CL_KERNEL_CONTEXT`	cl_context	Return the context associated with `kernel`.
`CL_KERNEL_PROGRAM`	cl_program	Return the program object associated with `kernel`.

param_value_size_ret

the actual size in bytes of data copied to param_value. If param_value_size_ret is NULL, it is ignored.

Errors

Returns CL_SUCCESS if the function is executed successfully. Otherwise, it returns one of the following errors:

CL_INVALID_VALUE if param_name is not valid, or if size in bytes specified by param_value_size is less than the size of return type as described in the table above and param_value is not NULL
CL_INVALID_KERNEL if kernel is not a valid kernel object.
CL_OUT_OF_RESOURCES if there is a failure to allocate resources required by the OpenCL implementation on the device.
CL_OUT_OF_HOST_MEMORY if there is a failure to allocate resources required by the OpenCL implementation on the host.

Specification

OpenCL Specification

Also see

clCreateKernel, clCreateKernelsInProgram, clRetainKernel, clReleaseKernel, clSetKernelArg, clGetKernelWorkGroupInfo

Copyright © 2007-2010 The Khronos Group Inc. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and/or associated documentation files (the "Materials"), to deal in the Materials without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Materials, and to permit persons to whom the Materials are furnished to do so, subject to the condition that this copyright notice and permission notice shall be included in all copies or substantial portions of the Materials.