Page Management and Forward Progress for Ray Tracing

A method, comprising:

• executing, by a computing system, a shader program that includes a primary thread associated with ray tracing, wherein the primary thread includes an instruction that indicates for the computing system to launch one or more secondary threads in at least one execution scenario;
• receiving, by the computing system, a request to allocate a memory page in a page pool to a requesting thread of the shader program, wherein the page pool includes a set of protected pages and a set of public pages;
• and
• allocating, by the computing system, a page of the page pool to the requesting thread according to an allocation restriction, wherein the allocation restriction specifies that:
• protected pages are allocable only to secondary threads that are launched based on a primary thread;
• and
• public pages are allocable to both primary and secondary threads.

A non-transitory computer-readable medium having instructions of a hardware description programming language stored thereon that, when processed by a computing system, program the computing system to generate a computer simulation model, wherein the model represents a hardware circuit that includes:

• processor circuitry configured to execute a shader program that includes a primary thread associated with ray tracing, wherein the primary thread includes an instruction that indicates for the circuit to launch one or more secondary threads in at least one execution scenario;
• and
• memory resource allocator circuitry configured to:
• receive a request to allocate a memory page in a page pool to a requesting thread of the shader program, wherein the page pool includes a set of protected pages and a set of public pages;
• and
• allocate a page of the page pool to the requesting thread according to an allocation restriction, wherein the allocation restriction specifies that:
• protected pages are allocable only to secondary threads that are launched based on a primary thread;
• and
• public pages are allocable to both primary and secondary threads.