Hardware assisted Page Migration in a Multi-Dielet Processing System

Abstract

A hardware mechanism at each dielet of a multi-dielet processing system is aware of engine page-table binds at all the dielets, thereby providing accurate traffic notifications to software (e.g., a unified virtual memory driver) for on-demand page-migration between system memory and GPU memory. The mechanism broadcasts binding information to access counters on each dielet so the access counters are able to correlate engines requesting memory access with bound virtual memory pages and generate corresponding informative notifications. A flexible multi-dielet counter clear capability enables software to clear access counters.

Dependencies are inferred from the claim text.