FPB: Fine-grained Power Budgeting to Improve Write Throughput of Multi-level Cell Phase Change Memory

Abstract: Adopting existing power management schemes for Multi-level Cell PCM (MLC) results in low write throughput and large performance degradation. In this work, we present Fine-grained write Power Budgeting (FPB) that consists of two schemes: (1) FPB-IPM observes a global power budget and regulates power across write iterations; (2) FPB-GCP integrates a global charge pump to boost power for hot PCM chips. FPB achieves significant improvement on write throughput and system performance.

Bio: Youtao Zhang received the PhD degree in computer science from the University of Arizona in 2002. He is an associate professor in the Computer Science Department, University of Pittsburgh. His research interests are in the areas of computer architecture and compilers. He is a recipient of the US National Science Foundation (NSF) CAREER Award in 2005, the Distinguished Paper Award of ICSE\'2003, and the most Original Paper Award of ICPP\'2003. He is a member of the ACM and the IEEE.