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NAME

       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 ≥ size of return type as described in the table below.

           ┌──────────────────────────┬─────────────┬─────────────────────────────┐
           │cl_kernel_infoReturn TypeInfo. 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

       OpenCL Specification[1]

SEE ALSO

       clCreateKernel(3clc), clCreateKernelsInProgram(3clc), clGetKernelArgInfo(3clc),
       clRetainKernel(3clc), clReleaseKernel(3clc), clSetKernelArg(3clc),
       clGetKernelWorkGroupInfo(3clc)

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)