A Profile-based Memory Access Optimizing Technology on CBE Architecture

Abstract

In the paper, we investigate the memory access technology on cell broadband engine architecture (CBEA), and develop a profiling infrastructure for memory management on the architecture. By registering the dynamic memory allocation and providing details of trace of memory access, the infrastructure provides the data partition information automatically which alleviates the burdens of programmer and provides a safety guarantee for aggressive data prefetch for computing task. On the other hand, the profile information is useful for analyzing the patterns of memory access and helpful for further performance optimization. Experimental results show that applications implemented based on our SDK library not only support aggressive memory access method without the requirement of external data partition information, but also could be optimized aggressively under the guideline of the profile information provided by the proposed SDK library.