公开(公告)号：US20200051317A1

公开(公告)日：2020-02-13

申请号：US16101206

申请日：2018-08-10

Applicant: NVIDIA Corporation

Inventor： Greg MUTHLER ,  Ronald Charles BABICH, JR. ,  William Parsons NEWHALL, JR. ,  Peter NELSON ,  Jim ROBERTSON ,  John BURGESS

IPC: G06T15/06 ,  G06T17/00 ,  G06N5/04 ,  G06F9/38 ,  G06T15/00 ,  G06T1/20 ,  G06T1/60

Abstract: In a ray tracer, to prevent any long-running query from hanging the graphics processing unit, a traversal coprocessor provides a preemption mechanism that will allow rays to stop processing or time out early. The example non-limiting implementations described herein provide such a preemption mechanism, including a forward progress guarantee, and additional programmable timeout options that can be time or cycle based. Those programmable options provide a means for quality of service timing guarantees for applications such as virtual reality (VR) that have strict timing requirements.