Effective management and utilization of large computer clusters requires suitable management tools. This includes tools for monitoring execution, both in real-time (online) and analysis of traces after execution (off-line). Execution monitoring also involves measuring usage of system resources, such as CPU, memory and network. As cluster monitoring is tightly related to administration, some of ...

As the number of nodes in Linux cluster systems is increased, the administration of cluster systems becomes challenging due to the increased complexity of the system. The lack of powerful tools for the administrative tasks even makes the matter worse. In this paper, we present CATS-i, Cluster Administration Tools on the Internet, which provides automatic and convenient installation of operating...

This paper presents new mechanisms for dynamic resource management in a cluster manager called Clusteron-Demand (COD). COD allocates servers from a common pool to multiple virtual clusters (vclusters), with independently configured software environments, name spaces, user access controls, and network storage volumes. We present experiments using the popular Sun GridEngine batch scheduler to dem...

Abstract — Ganeti is an open source virtualization management software used in small as well as growing businesses that can help users to manage networks, storage and virtual machines (VMs). Software is built on top of popular virtualization technologies such as KVM, Xen and other open source solutions. This paper contains introduction to Virtualization, introduction to Ganeti that is a cluster...

Four hypotheses relevant to the contingency theory of management accounting are presented. Data relate to the period 1994–98 for a sample of new Scottish microfirms. First, correlation analysis is applied to test the hypothesis that the introduction of management accounting system (MAS) developments is related to the timing of contingent events such as cashflow crises, shortfalls of finance, an...

Text clustering typically involves clustering in a high dimensional space, which appears difficult with regard to virtually all practical settings. In addition, given a particular clustering result it is typically very hard to come up with a good explanation of why the text clusters have been constructed the way they are. In this paper, we propose a new approach for applying background knowledg...

The purpose of this study was to explore the characteristics of symptoms and to explore the presence and composition of symptom clusters in Thai patients with advanced lung cancer based on the “Theory of Unpleasant Symptoms”. One hundred and sixty five patients with advanced lung cancer were purposely selected from outpatient and inpatient oncology units at two tertiary hospitals in Bangkok to ...

In the recent times the concept of group key management is found to be one of the very essential issues in the field of wireless sensor network. Because of the dual impact limitations and various operations in open and hash environment the security and confidentiality which are considered as very challenging issues in WSN. The main issues which are associated with securing the sensor network ha...

This paper deals with the resource scheduling algorithm for multi cluster hybrid grid environment. The combination of both the centralized and decentralized grid environments is collectively called as the hybrid grid environment. In this environment, each cluster has its own scheduler and cluster information system, and the whole organization is managed by one global grid scheduler with a grid ...

The recent improvements in workstation and interconnection network performance have popularized the clusters of off-the-shelf workstations. However, the usefulness of these clusters is yet to be fully exploited, mostly due to the inadequate management of cluster resources implemented by current distributed operating systems. In order to eliminate this problem and approach the computational powe...