公开(公告)号：US20250068429A1

公开(公告)日：2025-02-27

申请号：US18536982

申请日：2023-12-12

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： John Stephen Junkins ,  Christopher J. Brennan ,  Ian Richard Beaumont ,  Kellie Marks ,  Matthaeus G. Chajdas ,  Max Oberberger ,  Michael John Bedy ,  Michael Mantor ,  Sean Keely

IPC: G06F9/38

Abstract: A Streaming Wave Coalescer (SWC) circuit stores a first set of state values associated with a first subset of threads of a first wave in a bin based on each of the first subset of threads including a first set of instructions to be executed. A second set of state values associated with a second subset of threads of a second wave is stored in the bin based on each of the second subset of threads including the first set of instructions to be executed and based on the first wave and the second wave both being associated with a hard key. A third wave is formed from the threads of the first subset and the second subset and is emitted for execution. As a result of reorganizing the threads and reconstituting a different wave, thread divergence of waves sent for execution is reduced.

公开(公告)号：US20240370965A1

公开(公告)日：2024-11-07

申请号：US18373004

申请日：2023-09-26

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Saurabh Sharma ,  Hashem Hashemi ,  Ian Richard Beaumont ,  Jeffrey C. Allan ,  Dana Schaa

IPC: G06T1/20

Abstract: A processing unit includes traversal recursion circuitry that performs, on behalf of a software shader, at least some of the requisite actions for traversing selected types of nodes of the acceleration structure. In response to identifying a first node of a raytracing acceleration structure is of a first type, the processing unit provides an intersection result for the first node to recursion circuitry. In response to the intersection result for the first node, the processing unit performs a traversal operation for the raytracing acceleration structure at the recursion circuitry.