To create kernel objects for all kernel functions in a program, call the function
cl_int clCreateKernelsInProgram( cl_program program, cl_uint num_kernels, cl_kernel* kernels, cl_uint* num_kernels_ret);
program is a program object with a successfully built executable.
num_kernels is the size of memory pointed to by kernels specified as the number of cl_kernel entries.
kernels is the buffer where the kernel objects for kernels in program will be returned. If kernels is
NULL, it is ignored. If kernels is not
NULL, num_kernels must be greater than or equal to the number of kernels in program.
num_kernels_ret is the number of kernels in program. If num_kernels_ret is
NULL, it is ignored.
Kernel objects are not created for any
__kernel functions in program
that do not have the same function definition across all devices for which a
program executable has been successfully built.
Kernel objects can only be created once you have a program object with a
valid program source or binary loaded into the program object and the
program executable has been successfully built for one or more devices
associated with program.
No changes to the program executable are allowed while there are kernel
objects associated with a program object.
This means that calls to clBuildProgram and clCompileProgram return
CL_INVALID_OPERATION if there are kernel objects attached to a program
The OpenCL context associated with program will be the context associated
The list of devices associated with program are the devices associated
Devices associated with a program object for which a valid program
executable has been built can be used to execute kernels declared in the
clCreateKernelsInProgram will return
CL_SUCCESS if the kernel objects were
Otherwise, it returns one of the following errors:
CL_INVALID_PROGRAMif program is not a valid program object.
CL_INVALID_PROGRAM_EXECUTABLEif there is no successfully built executable for any device in program.
CL_INVALID_VALUEif kernels is not
NULLand num_kernels is less than the number of kernels in program.
CL_OUT_OF_RESOURCESif there is a failure to allocate resources required by the OpenCL implementation on the device.
CL_OUT_OF_HOST_MEMORYif there is a failure to allocate resources required by the OpenCL implementation on the host.
For more information, see the OpenCL Specification
This page is extracted from the OpenCL Specification. Fixes and changes should be made to the Specification, not directly.
Copyright (c) 2014-2020 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.