Apple Inc.
Distributing compute work using distributed parser circuitry

Abstract:

Techniques are disclosed relating to distributing work from compute kernels using distributed parser circuitry. In some embodiments, a master parser is configured to communicate with distributed parsers over a communications fabric. In some embodiments, the master parser generates batches of compute workgroups from a compute kernel and assigns batches to ones of the distributed workload parser circuits. In some embodiments, based on an indicated number of sequential workgroups to send to the same distributed workload parser, the master parser selects a distributed parser to receive a set of batches and avoids selecting a distributed workload parser whose queue would be filled by the batches. In some embodiments, this may avoid stalling for a kernel terminate command. In some embodiments, the master parser may adjust a batch size to avoid filling a distributed parser's queue. In some embodiments, the distributed parsers may use similar techniques when sending work to shader units.