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Adoption of Cloud Computing is on the rise[1] and many datacenter operators adhere to strict energy efficiency guidelines[2]. In this paper a novel approach to scheduling in a Cloud Computing context is proposed. The algorithm Maxmin Fast Track (MXFT) revises the Max-min algorithm to better support smaller tasks with stricter Service Level Agreements (SLAs), which makes it more relevant to Cloud Computing...
Resource competition and conflicts in datacenter networks (DCNs) are frequent and intense. They become inevitable when mixing elephant and mice flows on shared transmission paths, resulting in arbitration between throughput and latency and performance degradation. We propose a novel flow scheduling scheme, Freeway, that leverages on path diversity in the DCN topology to guarantee, simultaneously,...
An arbitrary m×n Boolean matrix M can be decomposed exactly as M = U○V, where U (resp. V) is an m×k (resp. k ×n) Boolean matrix and ○ denotes the Boolean matrix multiplication operator. We first prove an exact formula for the Boolean matrix J such that M = M○JT holds, where J is maximal in the sense that if any 0 element in J is changed to a 1 then this equality no longer holds. Since minimizing k...
A wave-channel balanced dynamic RWA algorithm presented in this paper based on the business for electric power optical transport network. This algorithm is designed to solve the routing and wavelength assignment problems of multibusiness request in the complex power optical transport network. This algorithm made the classification of business requests and set the priority of each request according...
The network resource competition of today' data enters is extremely intense between long-lived elephant flows and latency-sensitive mice flows. Achieving both goals of high throughput and low latency respectively for the two types of flows requires compromise, which recent research has not successfully solved mainly due to the transfer of elephant and mice flows on shared links without any differentiation...
In order to ease congestion phenomenon in the case of limited resources of nodes, this paper presents an adaptive congestion control algorithm based on the node's priority. The proposed algorithm confirms prioritization according to the degree of congestion situation, and then adaptively chooses its probability of accessing channel in order to quickly relieve the congestion in this region. Experimental...
Peer-to-Peer (P2P) systems have brought two serious problems for Internet Services Providers (ISPs): traffic surges and network congestion. Proxy caching for P2P traffic is an effective means of easing the burden imposed by P2P traffic on ISPs. The deployment strategy of proxy caches has a significant impact on their effect on ISPs. It has two important components: one is cache operation that is what...
DEVS is a formalism intended to model both discrete and continuous systems. The use of discrete events, rather than time steps, as the basis for simulation has been shown to reduce the computation time in many applications. Parallel DEVS is an extension to standard DEVS, which provides means to handle simultaneous scheduling. In this paper, we present an implementation of the parallel DEVS simulation...
In MIPv6, the home agent (HA) is the key entity to ensure a mobile nodepsilas (MN) reachability. A single HA on the home link will become a performance bottleneck. In order to enhance service availability and improve system performance, it is necessary to configure multiple HAs on the home link and efficiently balance load among these HAs. This paper proposes a dynamic multiple HA load balancing mechanism...
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