- 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 ≥ 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. CL_KERNEL_CONTEXT cl_context Return the context associated with kernel. CL_KERNEL_PROGRAM cl_program Return the program object associated with kernel. CL_KERNEL_ATTRIBUTES char[] Returns any attributes specified using the __attribute(3clc)__ qualifier with the kernel function declaration in the program source. These attributes include those on the __attribute(3clc)__ page and other attributes supported by an implementation. Attributes are returned as they were declared inside __attribute(3clc)__((...)), with any surrounding whitespace and embedded newlines removed. When multiple attributes are present, they are returned as a single, space delimited string.
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 < 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
m[blue]OpenCL Specificationm[][1]
AUTHORS
The Khronos Group
COPYRIGHT
Copyright © 2007-2011 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.
NOTES
- 1.
-
OpenCL Specification
- page 162, section 5.7.3 - Kernel Object Queries (updated for 1.2 rev 14)