Rick Bradshaw

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— The use of virtualization in Grid computing has seen a lot of interest lately. However, while much effort has been expanded on developing the capabilities of Virtual Machine Monitors (VMMs) and associated tools and services relatively little has been done to investigate the requirements underlying the scalable production, deployment, and management of VM(More)
We describe the use of component architecture in an area to which this approach has not been classically applied , the area of cluster system software. By " cluster system software, " we mean the collection of programs used in configuring and maintaining individual nodes, together with the software involved in submission, scheduling , monitoring, and(More)
Petascale HPC systems are among the largest systems in the world. Intrepid, one such system, is a 40,000 node, 556 teraflop Blue Gene/P system that has been deployed at Argonne National Laboratory. In this paper, we provide some background about the system and our administration experiences. In particular, due to the scale of the system, we have faced a(More)
While configuration management systems are generally regarded as useful, their deployment process is not well understood or documented. In this paper, we present a case study in configuration management tool deployment. We describe the motivating factors and both the technical considerations and the social issues involved in this process. Our discussion(More)
With the recent trend of exploiting resources of the cloud, we have embarked on a journey to deploy an open source cloud using Eucalyptus 1. During the past year we have learned many lessons about the use of Eucalyptus and clouds in general. The area of security provides significant challenges in operating a cloud, the scalability supposedly inherent in(More)
Systems software for clusters typically derives from a multiplicity of sources: the kernel itself, software associated with a particular distribution, site-specific purchased or open-source software, and assorted home-grown tools and procedures that attempt to glue everything together to meet the needs of the users and administrators of a particular(More)
Regular drinkers from the general public whose drinking behavior was known to be unaffected by a previous antidrug advertising campaign were involved in a field experiment to assess the impact of a television commercial based on controlled-drinking principles. In a 2 x 2 factorial arrangement of exposure to the advertising campaign (advertisement, no(More)