"oneAPI GPU Optimization Guide" reads:
"Each VE is a multi-threaded SIMD processor. The compiler generates SIMD code to map several work-items to be executed simultaneously within a given hardware thread. The SIMD-width for a kernel is a heuristic driven compiler choice. Common SIMD-width examples are SIMD-8, SIMD-16, and SIMD-32."
In case of a highly divergent kernel, is it possible to force the compiler to SIMD-1, i.e. only one work item using the whole XVE SIMD16 engine at a time? The reason would be to avoid exponential overhead when each work item's control flow is different.
