If compilation time for an OpenCL™ program is of concern, consider reusing compilation results. It is typically faster than recreating you program from the source, but you should check if this is true for your specific program and device.
To retrieve binaries generated from calls to
clBuildProgram, you can call
CL_PROGRAM_BINARIESparameter. For the performance-critical applications that typically precompile kernel code to an intermediate representation (IR), you can cache the resulting binaries after the first OpenCL™ compilation and reuse them on subsequent executions by calling
clCreateProgramWithBinary. Another way to save intermediate binaries is to use the OpenCL Code builder, as described in the
User Manual - OpenCL™ Code Builder.
Intermediate representations are different for the CPU and the Intel® Graphics devices.