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Full-Text Articles in Physical Sciences and Mathematics
A Framework For Virtual Device Driver Development And Virtual Device-Based Performance Modeling, Zachary Jones
A Framework For Virtual Device Driver Development And Virtual Device-Based Performance Modeling, Zachary Jones
All Dissertations
Operating system virtualization tools such as VMWare, XEN, and Linux KVM export only minimally capable SVGA graphics adapters. This paper describes the design and implementation of system
that virtualizes high-performance graphics cards of arbitrary design to support the construction of authentic device drivers. Drivers written for the virtual cards can be used verbatim, without special function calls or kernel modifications, as drivers for real cards, should real cards of the same design exist. While this allows for arbitrary design, it is not able to model performance characteristics. We describe a new kernel system that allows for arbitrarily changing the performance …
Building Scientific Clouds: The Distributed, Peer-To-Peer Approach, Linton Vadakedathu
Building Scientific Clouds: The Distributed, Peer-To-Peer Approach, Linton Vadakedathu
All Theses
The Scientific community is constantly growing in size. The increase in personnel number and projects have resulted in the requirement of large amounts of storage, CPU power and other computing resources. It has also become necessary to acquire these resources in an affordable
manner that is sensitive to work loads. In this thesis, the author presents a novel approach that provides the communication platform that will support such large scale scientific projects. These resources could be difficult to acquire due to NATs, firewalls and other site-based restrictions and policies. Methods used to overcome these hurdles have been discussed in detail …
Practical Implementation Of The Virtual Organization Cluster Model, Michael Fenn
Practical Implementation Of The Virtual Organization Cluster Model, Michael Fenn
All Theses
Virtualization has great potential in the realm of scientific computing because of its inherent advantages with regard to environment customization and isolation. Virtualization technology is not without it's downsides, most notably, increased computational overhead. This thesis introduces the operating mechanisms of grid technologies in general, and the Open Science Grid in particular, including a discussion of general organization and specific software implementation. A model for utilization of virtualization resources with separate administrative domains for the virtual machines (VMs) and the physical resources is then presented. Two well-known virtual machine monitors, Xen and the Kernel-based Virtual Machine (KVM), are introduced and …
Virtual Organization Clusters: Self-Provisioned Clouds On The Grid, Michael Murphy
Virtual Organization Clusters: Self-Provisioned Clouds On The Grid, Michael Murphy
All Dissertations
Virtual Organization Clusters (VOCs) provide a novel architecture for overlaying dedicated cluster systems on existing grid infrastructures. VOCs provide customized, homogeneous execution environments on a per-Virtual Organization basis, without the cost of physical cluster construction or the overhead of per-job containers. Administrative access and overlay network capabilities are granted to Virtual Organizations (VOs) that choose to implement VOC technology, while the system remains completely transparent to end users and non-participating VOs. Unlike alternative systems that require explicit leases, VOCs are autonomically self-provisioned according to configurable usage policies. As a grid computing architecture, VOCs are designed to be technology agnostic and …