[PATCH] D98832: [libomptarget] Tune the number of teams and threads for kernel launch.

[Dhruva Chakrabarti via Phabricator via llvm-commits]

dhruvachak added a comment.

In D98832#2822837 <https://reviews.llvm.org/D98832#2822837>, @JonChesterfield wrote:

> I haven't tried to understand the control flow yet. Is the idea to map a target region to as large a fraction of a CU as we can, scaling it back when occupancy constraints would force some of it to be idle anyway?

Yes, we start with the goal of filling up a CU with a pre-defined number of wavefronts. Given that goal, we try to choose team-count and team-size in a way so that their product approaches the pre-defined number of wavefronts. And the choices of team-count/team-size are constrained by register/LDS usage.


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