Visible to Intel only — GUID: GUID-76073D7A-3C25-4452-884B-45C6A500B67C
Visible to Intel only — GUID: GUID-76073D7A-3C25-4452-884B-45C6A500B67C
Automatic Chunking
A parallel loop construct incurs overhead cost for every chunk of work that it schedules. Intel® oneAPI Threading Building Blocks (oneTBB) chooses chunk sizes automatically, depending upon load balancing needs. The heuristic attempts to limit overheads while still providing ample opportunities for load balancing.
The default automatic chunking is recommended for most uses. As with most heuristics, however, there are situations where controlling the chunk size more precisely might yield better performance.