Apple inc. (20250095098). Hint for Scheduling Graphics Ray Tracing Work
Hint for Scheduling Graphics Ray Tracing Work
Organization Name
Inventor(s)
Ali Rabbani Rankouhi of Bushey GB
Roman Tereshin of San Jose CA US
Luca O. Iuliano of Milton Keynes GB
Sheenam Jayaswal of Austin TX US
Rohit Kumar Singh of Austin TX US
Hint for Scheduling Graphics Ray Tracing Work
This abstract first appeared for US patent application 20250095098 titled 'Hint for Scheduling Graphics Ray Tracing Work
Original Abstract Submitted
techniques are disclosed relating to graphics processor that support ray tracing. in particular, shader circuitry may be configured to adjust a scheduling priority of a single-instruction multiple-data (simd) group of a shader program based on a hint that the simd group has an upcoming ray intersect command for ray intersect accelerator circuitry and based on a resource usage indication from the ray intersect accelerator circuitry. this may advantageously reduce cache thrashing, e.g., when shaders may allocate memory for ray intersect commands and fill a shared cache faster than the ray intersect accelerator circuitry can process the rays.
