A Hardware-Software Cooperative Approach for Application Energy Profiling

A Hardware / Software Approach

Implementing Software-Hardware Cooperative Memory Disambiguation

In high-end processors, increasing the number of in-flight instructions can improve performance by overlapping useful processing with long-latency accesses to the main memory. Buffering these instructions requires a tremendous amount of microarchitectural resources. Unfortunately, large structures negatively impact processor clock speed and energy efficiency. Thus, innovations in effective and ...

Cooperative Shared Memory: Software and Hardware for Scalable Multiprocessors

We believe the paucity of massively-parallel, shared-memory machines follows from the lack of a shared-memory programming performance model that can inform programmers of the cost of operations (so they can avoid expensive ones) and can tell hardware designers which cases are common (so they can build simple hardware to optimize them). Cooperative shared memory, our approach to shared-memory de...

Cooperative Software–Hardware Power Management for Main Memory

Energy is becoming a critical resource to not only small battery-powered devices but also large server systems, where high energy consumption translates to excessive heat dissipation, which, in turn, increases cooling costs and causes servers to become more prone to failure. Main memory is one of the most energy-consuming components in many systems. In this paper, we propose and evaluate a nove...

Software-Hardware Cooperative DRAM Bank Partitioning for Chip Multiprocessors

DRAM row buffer conflicts can increase the memory access latency significantly for single-threaded applications. In a chip multiprocessor system, multiple applications competing for DRAM will suffer additional row buffer conflicts due to interthread interference. This paper presents a new hardware and software cooperative DRAM bank partitioning method that combines page coloring and XOR cache m...