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open access

The Feasibility of Multicasting in RMI

Description: Due to the growing need of the Internet and networking technologies, simple, powerful, easily maintained distributed applications needed to be developed. These kinds of applications can benefit greatly from distributed computing concepts. Despite its powerful mechanisms, Jini has yet to be accepted in mainstream Java development. Until that happens, we need to find better Remote Method Invocation (RMI) solutions. Feasibility of implementation of Multicasting in RMI is worked in this paper. Mult… more
Date: May 2003
Creator: Ujjinihavildar, Vinay
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The CMS dataset bookkeeping service

Description: The CMS Dataset Bookkeeping Service (DBS) has been developed to catalog all CMS event data from Monte Carlo and Detector sources. It provides the ability to identify MC or trigger source, track data provenance, construct datasets for analysis, and discover interesting data. CMS requires processing and analysis activities at various service levels and the DBS system provides support for localized processing or private analysis, as well as global access for CMS users at large. Catalog entries can… more
Date: October 1, 2007
Creator: Afaq, Anzar,; /Fermilab; Dolgert, Andrew; /Cornell U., Phys. Dept.; Guo, Yuyi; /Fermilab et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Grid Logging: Best Practices Guide

Description: The purpose of this document is to help developers of Grid middleware and application software generate log files that will be useful to Grid administrators, users, developers and Grid middleware itself. Currently, most of the currently generated log files are only useful to the author of the program. Good logging practices are instrumental to performance analysis, problem diagnosis, and security auditing tasks such as incident tracing and damage assessment. This document does not discuss the i… more
Date: April 1, 2008
Creator: Tierney, Brian L; Tierney, Brian L & Gunter, Dan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SciDAC - The Scientific Data Management Center (http://sdmcenter.lbl.gov)

Description: In SciDAC SDM project, the main assignment to the Georgia Institute of Technology team (according to the proposed work) is to develop advanced information extraction and information integration technologies on top of the XWRAP technology originated from Georgia Tech [LPH01]. We have developed XWRAPComposer technology to enable the XWRAP code generator to generate Java information wrappers that are capable of extraction of data from multiple linked pages. These information wrappers are used as g… more
Date: June 20, 2005
Creator: Pu, Ling Liu Calton
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

EXPLORING THE POTENTIAL OF SHORT-TIME FOURIER TRANSFORMS FOR ANALYZING SKIN CONDUCTANCE AND PUPILLOMETRY IN REAL-TIME APPLICATIONS

Description: The development of real-time predictors of mental workload is critical for the practical application of augmented cognition to human-machine systems. This paper explores a novel method based on a short-time Fourier transform (STFT) for analyzing galvanic skin conductance (SC) and pupillometry time-series data to extract estimates of mental workload with temporal bandwidth high-enough to be useful for augmented cognition applications. We tested the method in the context of a process control task… more
Date: September 1, 2008
Creator: Lew, Roger; Dyre, Brian P.; Werner, Steffen; Joe, Jeffrey C.; Wotring, Brian & Tran, Tuan
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Babel Fortran 2003 Binding for Structured Data Types

Description: Babel is a tool aimed at the high-performance computing community that addresses the need for mixing programming languages (Java, Python, C, C++, Fortran 90, FORTRAN 77) in order to leverage the specific benefits of those languages. Scientific codes often rely on structured data types (structs, derived data types) to encapsulate data, and Babel has been lacking in this type of support until recently. We present a new language binding that focuses on their interoperability of C/C++ with Fortran … more
Date: May 2, 2008
Creator: Muszala, S; Epperly, T & Wang, N
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Enhancing Seismic Calibration Research Through Software Automation and Scientific Information Management

Description: The National Nuclear Security Administration (NNSA) Ground-Based Nuclear Explosion Monitoring Research and Engineering (GNEM R&E) Program at LLNL has made significant progress enhancing the process of deriving seismic calibrations and performing scientific integration, analysis, and information management with software automation tools. Several achievements in schema design, data visualization, synthesis, and analysis were completed this year. Our tool efforts address the problematic issues… more
Date: July 6, 2007
Creator: Ruppert, S. D.; Dodge, D. A.; Ganzberger, M. D.; Hauk, T. F. & Matzel, E. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

User Interface Framework for the National Ignition Facility (NIF)

Description: A user interface (UI) framework supports the development of user interfaces to operate the National Ignition Facility (NIF) using the Integrated Computer Control System (ICCS). [1] This framework simplifies UI development and ensures consistency for NIF operators. A comprehensive, layered collection of UIs in ICCS provides interaction with system-level processes, shot automation, and subsystem-specific devices. All user interfaces are written in Java, employing CORBA to interact with other ICCS… more
Date: October 1, 2007
Creator: Fisher, J M; Bowers, G A; Carey, R W; Daveler, S A; Herndon Ford, K B; Ho, J C et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

NIF ICCS Test Controller for Automated & Manual Testing

Description: The National Ignition Facility (NIF) Integrated Computer Control System (ICCS) is a large (1.5 MSLOC), hierarchical, distributed system that controls all aspects of the NIF laser [1]. The ICCS team delivers software updates to the NIF facility throughout the year to support shot operations and commissioning activities. In 2006, there were 48 releases of ICCS: 29 full releases, 19 patches. To ensure the quality of each delivery, thousands of manual and automated tests are performed using the ICC… more
Date: October 3, 2007
Creator: Zielinski, J S
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Java Tool Framework for Automation of Hardware Commissioning and Maintenance Procedures

Description: The National Ignition Facility (NIF) is a 192-beam laser system designed to study high energy density physics. Each beam line contains a variety of line replaceable units (LRUs) that contain optics, stepping motors, sensors and other devices to control and diagnose the laser. During commissioning and subsequent maintenance of the laser, LRUs undergo a qualification process using the Integrated Computer Control System (ICCS) to verify and calibrate the equipment. The commissioning processes are … more
Date: October 2, 2007
Creator: Ho, J. C.; Fisher, J. M.; Gordon, J. B.; Lagin, L. J. & West, S. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Lambda Station: Alternate Network Path Forwarding for Production SciDAC Applications

Description: The LHC era will start very soon, creating immense data volumes capable of demanding allocation of an entire network circuit for task-driven applications. Circuit-based alternate network paths are one solution to meeting the LHC high bandwidth network requirements. The Lambda Station project is aimed at addressing growing requirements for dynamic allocation of alternate network paths. Lambda Station facilitates the rerouting of designated traffic through site LAN infrastructure onto so-called '… more
Date: September 1, 2007
Creator: Grigoriev, Maxim; Bobyshev, Andrey; Crawford, Matt; DeMar, Phil; Grigaliunas, Vyto; Moibenko, Alexander et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

PADRE: a parallel asynchronous data routing environment

Description: Increasingly in industry, software design and implementation is object-oriented, developed in C++ or Java, and relies heavily on pre-existing software libraries (e.g. the Microsoft Foundation Classes for C++, the Java API for Java). A similar but more tentative trend is developing in high-performance parallel scientific computing. The transition from serial to parallel application development considerably increases the need for library support: task creation and management, data distribution an… more
Date: January 8, 2001
Creator: Gunney, B & Quinlan, D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

NADS - Nuclear And Atomic Data System

Description: We have developed NADS (Nuclear and Atomic Data System), a web-based graphical interface for viewing pointwise and grouped cross-sections and distributions. Our implementation is a client / server model. The client is a Java applet that displays the graphical interface, which has interactive 2-D, 3-D, and 4-D plots and tables. The server, which can serve and perform computations the data, has been implemented in Python using the FUDGE package developed by Bret Beck at LLNL. Computational capabi… more
Date: September 17, 2004
Creator: McKinley, M S; Beck, B & McNabb, D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Applying Loop Optimizations to Object-oriented Abstractions Through General Classification of Array Semantics

Description: Optimizing compilers have a long history of applying loop transformations to C and Fortran scientific applications. However, such optimizations are rare in compilers for object-oriented languages such as C++ or Java, where loops operating on user-defined types are left unoptimized due to their unknown semantics. Our goal is to reduce the performance penalty of using high-level object-oriented abstractions. We propose an approach that allows the explicit communication between programmers and com… more
Date: March 5, 2004
Creator: Yi, Q & Quinlan, D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

SERVER DEVELOPMENT FOR NSLS-II PHYSICS APPLICATIONS AND PERFORMANCE ANALYSIS

Description: The beam commissioning software framework of NSLS-II project adopts a client/server based architecture to replace the more traditional monolithic high level application approach. The server software under development is available via an open source sourceforge project named epics-pvdata, which consists of modules pvData, pvAccess, pvIOC, and pvService. Examples of two services that already exist in the pvService module are itemFinder, and gather. Each service uses pvData to store in-memory tran… more
Date: March 28, 2011
Creator: Shen, G. & Kraimer, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Target Diagnostic Control System Implementation for the National Ignition Facility

Description: The extreme physics of targets shocked by NIF's 192-beam laser are observed by a diverse suite of diagnostics. Many diagnostics are being developed by collaborators at other sites, but ad hoc controls could lead to unreliable and costly operations. A Diagnostic Control System (DCS) framework for both hardware and software facilitates development and eases integration. Each complex diagnostic typically uses an ensemble of electronic instruments attached to sensors, digitizers, cameras, and other… more
Date: May 12, 2010
Creator: Shelton, R T; Kamperschroer, J H; Lagin, L J; Nelson, J R & O'Brien, D W
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Complete Calculation of Evaluated Maxwellian-Averaged Cross Sections and Their Uncertainties for S-Process Nucleosynthesis

Description: Present contribution represents a significant improvement of our previous calculation of Maxwellian-averaged cross sections and astrophysical reaction rates. Addition of newly-evaluated neutron reaction libraries, such as ROSFOND and Low-Fidelity Covariance Project, and improvements in data processing techniques allowed us to extend it for entire range of sprocess nuclei, calculate Maxwellian-averaged cross section uncertainties for the first time, and provide additional insights on all current… more
Date: July 19, 2010
Creator: Pritychenko, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

CartaBlanca-rapid prototyping development environment for non-linear systems on unstructured grids.

Description: This talk describes a component-based nonlinear physical system simulation prototyping package written entirely in Java using objectoriented design, The package provides scientists and engineers a 'developer-friendly' software environment for large-scale computational algorithm and physical model development, on the Jacobian-Free Newton-Krylov solution method surrounding a finite-volume treatment of conservation equations. This enables a clean component-like implementation. We first provide mot… more
Date: January 1, 2002
Creator: VanderHeyden, William Brian; Livescu, Daniel & Padial-Collins, Nely T.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Teaching object concepts for XML-based representations.

Description: Students learned about object-oriented design concepts and knowledge representation through the use of a set of toy blocks. The blocks represented a limited and focused domain of knowledge and one that was physical and tangible. The blocks helped the students to better visualize, communicate, and understand the domain of knowledge as well as how to perform object decomposition. The blocks were further abstracted to an engineering design kit for water park design. This helped the students to wor… more
Date: January 1, 2002
Creator: Kelsey, R. L. (Robert L.)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Orbit Display's Use of the Physics Application Framework

Description: At the SLAC National Accelerator Laboratory (SLAC) the Controls Department (CD) is developing a physics application framework based on the Java(tm) programming language developed by Sun Microsystems. This paper will discuss the first application developed using this approach: a new Orbit Display. The software is being developed by several individuals in reusable Java packages. It relies on the Experimental Physics and Industrial Control System (EPICS) toolkit for data collection and XAL - A Jav… more
Date: December 9, 2009
Creator: Zelazny, Michael; Chevtsov, Sergei; Chu, Chungming Paul; Fairley, Diane; Krejcik, Patrick; Natampalli, Partha et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Generic Optimization Program User Manual Version 3.0.0

Description: GenOpt is an optimization program for the minimization of a cost function that is evaluated by an external simulation program. It has been developed for optimization problems where the cost function is computationally expensive and its derivatives are not available or may not even exist. GenOpt can be coupled to any simulation program that reads its input from text files and writes its output to text files. The independent variables can be continuous variables (possibly with lower and upper bou… more
Date: May 11, 2009
Creator: Wetter, Michael
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Multi-Device Knob Utility for LCLS

Description: At the SLAC National Accelerator Laboratory (SLAC) the Controls Department (CD) has developed a new Multi-Device Knob Utility (MKB) based on the Experimental Physics and Industrial Control System (EPICS) toolkit for controlling one or more Process Variables (PVs) in unison, or simultaneously, from a physical knob located in the control room, or from various software tools such as the EPICS Extensible Display Manager (EDM) or a Swing slider in Java. A group of devices are hooked up to a knob, an… more
Date: December 9, 2009
Creator: Zelazny, Michael; Chevtsov, Sergei; Chu, Chungming Paul; Fairley, Diane; Krejcik, Patrick; Rogind, Deborah et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Java Metadata Facility

Description: The Java Metadata Facility is introduced by Java Specification Request (JSR) 175 [1], and incorporated into the Java language specification [2] in version 1.5 of the language. The specification allows annotations on Java program elements: classes, interfaces, methods, and fields. Annotations give programmers a uniform way to add metadata to program elements that can be used by code checkers, code generators, or other compile-time or runtime components. Annotations are defined by annotation type… more
Date: March 6, 2008
Creator: Buttler, D. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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