Aiming at large-scale job scheduling, allocating resource dynamically in order to reduce cost is a significant problem in cloud. In this paper, we study the resource allocation at the application level, instead of studying to map the physical resources to virtual resources for better resource utilization in cloud computing environment. We propose a multi-dimensional resource allocation scheme f...

In order to reduce system outages and the associated downtime cost caused by the “software aging” phenomenon, we propose to use software rejuvenation as a proactive system maintenance technique deployed in a CMTS (Cable Modem Termination System) cluster system. Different rejuvenation policies are studied from the perspective of implementation and availability. To evaluate these policies, stocha...

System reliability is a major challenge in system design. Unreliable systems are not only major source of user frustration, they are also expensive. Avoiding downtime and the cost of actual downtime make up more than 40% of the total cost of ownership for modern IT systems. Unfortunately, with the large component count in today’s large-scale systems, failures are quickly becoming the norm rathe...

Development is the fundamental area in enabling India`s economy and urban and provincial structure. Development is a multi-connected structure where all variables are bury connected and multi-centered. All the three limitations time, expense and quality ought to be adjusted in an improved way, so that no segment gets influenced by dismissing those. The goal of this study is to distinguish the m...

In this paper, lean buffering (i.e., the smallest level of buffering necessary and sufficient to ensure the desired production rate of a manufacturing system) is analyzed for the case of serial lines with machines having Weibull, gamma, and log-normal distributions of upand downtime. The results obtained show that: (1) the lean level of buffering is not very sensitive to the type of upand downt...

Zigbee is a unique communication standard designed for low-rate wireless personal area networks. It having extremely low complexity and low amount of cost and power consumption for wireless connectivity in inexpensive, convenient and mobile devices. In Zigbee networks, a tree construction is often used to construct a wireless sensor network for data delivery applications. However, data delivery...

The brain is highly energy consuming, therefore is under strong selective pressure to achieve cost-efficiency in both cortical connectivities and activities. However, cost-efficiency as a design principle for cortical activities has been rarely studied. Especially it is not clear how cost-efficiency is related to ubiquitously observed multi-scale properties: irregular firing, oscillations and n...

In this paper, we propose a high availability design of a Cable Modem Termination System (CMTS) clusters system based on the software rejuvenation technique. This proactive system maintenance technique is aimed to reduce system outages and the associated downtime cost due to the ‘software aging’ phenomenon. Different rejuvenation policies are studied from the perspectives of design, implementat...

Joux’s multicollision attack is one of the most striking results on hash functions and also one of the simplest: it computes a k-collision on iterated hashes in time ⌈log2 k⌉ · 2 , whereas k! · 2 was thought to be optimal. Kelsey and Schneier improved this to 3 · 2 if storage 2 is available and if the compression functions admits easily found fixed-points. This paper presents a simple technique...

Calculating the mean physical stock in a simple periodic review inventory system seems to be straightforward. However, the standard approximate expressions appear to yield inaccurate results, especially for low service levels. Low service levels are frequently encountered at intermediate nodes in cost-optimal solutions for multiechelon systems. In this note, we present an improved approximate m...