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The computing needs of high energy physics experiments like the Compact Muon Solenoid experiment at the Large Hadron Collider currently exceed the available dedicated computational resources, hence motivating a push to leverage opportunistic resources. However, access to opportunistic resources faces many obstacles, not the least of which is making available the complex software stack typically associated...
We present performance results of a new distributed I/O software architecture to support remote applications interacting with local I/O devices. The architecture emphasizes network transparency and ease of customization/extensibility in support of the vastly different needs of various applications and devices that can benefit from remote I/O. Networked I/O is achieved via a networked device driver...
During the past few years, a worldwide acceptance of IEC 61850 has been demonstrated as more and more substation devices are being integrated based on Ethernet technology. This trend represents new challenges for integrators, manufacturers, and end users. However, the field-proven benefits and lessons learned are truly valuable to managers, supervisors, and executives curious about bringing the benefits...
Power Supply Controls are being developed at Oak Ridge National Laboratory (ORNL) to test transmission line components of the Electron Cyclotron Heating (ECH) system, with a focus on gyrotrons and waveguides, in support of the International Thermonuclear Experimental Reactor (ITER). The control is performed by several Programmable Logic Controllers (PLC's) located near the different equipment. A technique...
This paper presents Android-based SoD (System on-Demand) client for remote presentation in virtual desktop environment. SoD is framework for on-demand computing in virtual computing environment. SoD enables to build cooperative device collaboration by orchestrating virtualized peripheral resources such as monitors, keyboarders, mice and so on. The objective of this paper is providing an Android-based...
A cloud computing provider can dynamically allocate virtual machines (VM) based on the needs of the customers, while maintaining the privileged access to the Management Virtual Machine that directly manages the hardware and supports the guest VMs. The customers must trust the cloud providers to protect the confidentiality and integrity of their applications and data. However, as the VMs from different...
Dedicated processors that are specialized for numerical computations, such as the Cell/B.E. and vector processors, tend to have low performance in the integer computations required by operating systems. To solve this problem, we propose a remote process and remote file I/O management architecture that enables processes on compute nodes that have dedicated processors to be executed from a management...
Distributed control systems available today offer advantages that were not available during the 1990psilas. distributed I/O and distributed controllers with various data highways to interconnect afforded very attractive options. The desired advantage of any DCS is to minimize the length of cable runs, and the number of cable runs that must be installed, without sacrificing speed and power of the system...
Wide-area computational grids have the potential to provide large amounts of computing capacity to the scientific community. Realizing this potential requires intelligent data management, enabling applications to harness remote computing resources with minimal remote data access overhead. We define execution domains, a framework which defines an affinity between CPU and data resources in the grid,...
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