Intel’s PCL optimization is implemented with the Intel® oneAPI DPC++ Compiler. The Intel® oneAPI DPC++ Compiler converts a DPC++ program into an intermediate language called SPIR-V (Standard Portable Intermediate Representation). The SPIR-V code is stored in the binary produced by the compilation process. The SPIR-V code has the advantage that it can be run on any hardware platform by translating the SPIR-V code into the assembly code of the given platform at runtime. This process of translating the intermediate code present in the binary is called Just-In-Time (JIT) compilation. Since JIT compilation happens at the beginning of the execution of the first offloaded kernel, the performance is impacted. This issue can be mitigated by setting the system environment variable to cache and reuse JIT-compiled binaries.