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In this paper we introduce a novel, dense, system-on-chip many-core Lenovo NeXtScale System® server based on the Cavium THUNDERX® ARMv8 processor that was designed for performance, energy efficiency and programmability. THUNDERX processor was designed to scale up to 96 cores in a cache coherent, shared memory architecture. Furthermore, this hardware system has a power interface board (PIB) that measures...
Power API--the result of collaboration among national laboratories, universities, and major vendors--provides a range of standardized power management functions, from application-level control and measurement to facility-level accounting, including real-time and historical statistics gathering. Support is already available for Intel and AMD CPUs and standalone measurement devices.
This paper proposes an innovative strategy to optimize the energy metering in large and energy-consuming plants such as industrial flour mills. The proposed solution deals with ISO 50001 implementation which represents a critical challenge for many companies because the benefits due to improvements in energy management could be potentially canceled by the costs of an Energy Management System (EnMS)...
Energy usage of computing equipment is an important consideration and energy inefficiency of computer systems is identified as the single biggest obstacle to advances in computing. Research into low-energy computing products ranges from operating system codes, applications and energy-aware schedulers to cooling systems for data centres. To monitor energy consumption in data and HPC centres it is necessary...
India's Energy consumption rate has increased in 21st century due to its economic growth and steady rise in GDP. The energy demand is increased due to evolution of new electronic gadgets to improve the life style. India's Energy consumption in residential buildings is about 40 percent of total. There is a 30 to 40 percent of energy saving opportunities existing in this sector with minimum efforts...
802.11 WLAN is a popular choice for wireless access on a range of ICT devices. A growing concern is the increased energy usage of ICT, for reasons of cost and environmental protection. The Power Save Mode (PSM) in 802.11 deactivates the wireless network interface during periods of inactivity. However, applications increasingly use push models, and so devices may be active much of the time. We have...
The environment sustainability is one of the main directions of intervention for all developed countries. Domestic and office electronic devices have significant share of total energy consumption worldwide. Therefore one important goal for government and environmental institutions is to promote and increase the energy efficiency of consumer electronic devices. In our work we try to address energy...
Due to continuous development of office and household equipment, the electricity end-consumer profile has changed in latest years, and increasing number of electricity consuming equipment, makes very hard to identify real electricity consumption of each device. Long-term power consumption monitoring with existing wall plug digital power meters can be an expensive method for consumers with large number...
Application-level energy efficiency mechanisms are considered the next important step in the evolution of highly power-efficient mobile systems. The final user is also an important element to be introduced within the energy efficiency and management chain. However the normal user lacks the basic understanding of the low-level power management mechanisms, even though he is the most able to choose how...
This paper analyses information on the electricity consumed by a site of an experimental Grid infrastructure and its correlations with users' resource reservation requests. The power consumption of all servers of this site was monitored for a period of six months, the data was gathered to enable studies on approaches for reducing the energy footprint of Grids and Clouds.
Timing-error detection and recovery circuits are implemented in a 65 nm resilient circuit test-chip to eliminate the clock frequency guardband from dynamic supply voltage (VCC) and temperature variations as well as to exploit path-activation probabilities for maximizing throughput. Two error-detection sequential (EDS) circuits are introduced to preserve the timing-error detection capability of previous...
This paper presents a distributed fermat-point range estimation strategy, which is important in the moving sensor localization applications. The fermat-point is defined as a point which minimizes the sum of distances from three sensors inside a triangle. This point is indeed at the trianglepsilas center of gravity. We solve the problems of large errors and poor performance in the bounding box algorithm...
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