There are several emerging memory technologies looming on the horizon to compensate the physical scaling challenges of DRAM. Phase change memory (PCM) is one such candidate proposed for being part of the main memory in computing systems. One salient feature of PCM is its multi-level-cell (MLC) property, which can be used to multiply the memory capacity at… (More)
Cloud computing has emerged as a highly cost-effective computation paradigm for IT enterprise applications, scientific computing, and personal data management. Because cloud services are provided by machines of various capabilities, performance, power, and thermal characteristics, it is challenging for providers to understand their cost effectiveness when… (More)
ACKNOWLEDGEMENTS First, I would like to thank my family back home in India for their constant support and motivation. Then, I would like to extend my sincere gratitude to my advisor, Dr. Hsien-Hsin Sean Lee. He has been an excellent mentor and a constant source of inspiration. I would also like to thank Dr. SUMMARY In this thesis, we address the problem… (More)
There are several emerging memory technologies looming on the horizon to compensate the physical scaling challenges of DRAM. Phase change memory (PCM) is one of such candidates proposed for being part of the main memory in computing systems. One salient feature of PCM is its multi-level cell (MLC) property which can be used to multiply the memory capacity… (More)
To optimize datacenter energy efficiency, SimWare analyzes the power consumption of servers, cooling units, and fans as well as the effects of heat recirculation and air supply timing. Experiments using SimWare show a high loss of cooling efficiency due to the nonuniform inlet air temperature distribution across servers.
The emergence of cloud computing has created a demand for more datacenters, which in turn, has led to the substantial consumption of electricity by computing systems and cooling units. Although recently built warehouse-scale datacenters can nearly completely eliminate cooling overhead, small to medium datacenters, which still spend nearly half of their… (More)