Imbalanced cache partitioning for balanced data-parallel programs
Abhisek Pan, Vijay S. Pai · 2013
This paper investigates partitioning the ways of a shared last-level cache among the threads of a symmetric data-parallel application running on a chip-multiprocessor. Unlike prior work on way-partitioning for unrelated threads in a multiprogramming workload, the domain of multithreaded programs requires both throughput and fairness. Additionally, our workloads show no obvious thread differences to exploit: program threads see nearly identical IPC and data reuse as they progress (as expected for a well-written load-balanced data-parallel program).