This extension adds priority hints for OpenCL, but does not specify the scheduling behavior or minimum guarantees. It is expected that the the user guides associated with each implementation which supports this extension describe the scheduling behavior guaranteed.
If this extension is supported by an implementation, the string cl_khr_priority_hints will be present in the
CL_PLATFORM_EXTENSIONS string described in table 4.1 (see clGetPlatformInfo).
For more information, see the OpenCL Extension Specification at URL