Graphics scheduling mechanism

An apparatus comprising:

• one or more processors including a graphics processor, the one or more processors to analyze an application kernel to determine a magnitude of barrier messages in the application kernel and generate barrier usage data having a value corresponding to the magnitude of barrier messages in the application kernel;
• and
• a memory to store the barrier usage data;
• wherein the graphics processor includes:
• a plurality of streaming multiprocessors, each streaming multiprocessor including a plurality of cores for execution of threads, and
• a scheduler to schedule a plurality of thread groups for execution by the plurality of streaming multiprocessors according to a scheduling policy, the scheduling policy being based at least in part on the barrier usage data, wherein the scheduler is to prioritize scheduling of a set of thread groups of the plurality of thread groups to a same streaming processor of the plurality of streaming multiprocessors upon a determination that the barrier usage data indicates a high magnitude of barrier messages in the set of thread groups.

A method comprising:

• analyzing an application kernel to determine a magnitude of barrier messages in the application kernel;
• generating barrier usage data having a value corresponding to the magnitude of barrier messages in the application kernel;
• receiving a plurality of thread groups for scheduling to a plurality of streaming multiprocessors of a graphics processor;
• and
• scheduling execution of the plurality of thread groups to streaming multiprocessors of the plurality of streaming multiprocessors according to a scheduling policy, the scheduling policy being based at least in part on the barrier usage data, wherein scheduling includes prioritizing of a set of thread groups of the plurality of thread groups to a same streaming processor of the plurality of streaming multiprocessors upon a determination that the barrier usage data indicates a high magnitude of barrier messages in the set of thread groups.

A non-transitory computer readable medium having instructions, which when executed by one or more processors, cause the processors to perform operations comprising:

• analyzing an application kernel to determine a magnitude of barrier messages in the application kernel;
• generating barrier usage data having a value corresponding to the magnitude of barrier messages in the application kernel;
• receiving a plurality of thread groups for scheduling to a plurality of streaming multiprocessors of a graphics processor;
• and
• scheduling execution of the plurality of thread groups to streaming multiprocessors of the plurality of streaming multiprocessors according to a scheduling policy, the scheduling policy being based at least in part on the barrier usage data, wherein scheduling includes prioritizing of a set of thread groups of the plurality of thread groups to a same streaming processor of the plurality of streaming multiprocessors upon a determination that the barrier usage data indicates a high magnitude of barrier messages in the set of thread groups.