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Generalized Portable SHMEM Library for High Performance Computing
This dissertation describes the efforts to design and implement the Generalized Portable SHMEM library, GPSHMEM, as well as supplementary tools. There are two major components of the GPSHMEM project: the GPSHMEM library itself and the Fortran 77 source-to-source translator. The rest of this thesis is divided into two parts. Part I introduces the shared memory model and the distributed shared memory model. It explains the motivation behind GPSHMEM and presents its functionality and performance results. Part II is entirely devoted to the Fortran 77 translator call fgpp. The need for such a tool is demonstrated, functionality goals are stated, and the design issues are presented along with the development of the solutions.
Date:
August 5, 2003
Creator:
Parzyszek, Krzysztof
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Using Curriculum Mapping to Understand Information Literacy in Political Science Curricula
Article presenting a curriculum mapping study of noncore course offerings in political science curricula by an early-career librarian. It combines syllabi study and curriculum mapping methods to analyze the language of student learning objectives (SLOs) from course syllabi and to integrate SLOs with threshold concepts from the ACRL Framework for Information Literacy for Higher Education and the AAC&U Information Literacy VALUE Rubric. The methods produce two sample sets: one of core concept representation and the other of additional observances for syllabi improvements. Results analyze the frequency and percentage distributions of threshold concepts in SLOs. The author outlines strategies for engaging faculty in information literacy and suggests how librarians and faculty might inform information literacy teaching in the department.
Date:
October 5, 2023
Creator:
Henson, Brea
Object Type:
Article
System:
The UNT Digital Library
The Heart of Librarianship: A Topical Literature Review of Outreach in Academic Libraries
This literature review provides an overview of outreach in academic libraries over the last five years. The review aims to centralize the common activities and general purposes of outreach while also bringing emphasis to more strategic outreach efforts such as the incorporation of learning outcomes and assessment into outreach. The review also provides commentary on how outreach can be used to affect information literacy and research.
Date:
July 5, 2019
Creator:
Henson, Brea
Object Type:
Paper
System:
The UNT Digital Library
Finding Text Information in the Ocean of Electronic Documents
Information management in natural resources has become an overwhelming task. A massive amount of electronic documents and data is now available for creating informed decisions. The problem is finding the relevant information to support the decision-making process. Determining gaps in knowledge in order to propose new studies or to determine which proposals to fund for maximum potential is a time-consuming and difficult task. Additionally, available data stores are increasing in complexity; they now may include not only text and numerical data, but also images, sounds, and video recordings. Information visualization specialists at Pacific Northwest National Laboratory (PNNL) have software tools for exploring electronic data stores and for discovering and exploiting relationships within data sets. These provide capabilities for unstructured text explorations, the use of data signatures (a compact format for the essence of a set of scientific data) for visualization (Wong et al 2000), visualizations for multiple query results (Havre et al. 2001), and others (http://www.pnl.gov/infoviz ). We will focus on IN-SPIRE, a MS Windows vision of PNNL’s SPIRE (Spatial Paradigm for Information Retrieval and Exploration). IN-SPIRE was developed to assist information analysts find and discover information in huge masses of text documents.
Date:
February 5, 2003
Creator:
Medvick, Patricia A. & Calapristi, Augustin J.
Object Type:
Article
System:
The UNT Digital Library
The National Information Infrastructure: The Federal Role
None
Date:
November 5, 1994
Creator:
McLoughlin, Glenn J.
Object Type:
Report
System:
The UNT Digital Library
Science, Technology, Engineering, and Mathematics (STEM) Education: A Primer
None
Date:
April 5, 2013
Creator:
Gonzalez, Heather B. & Kuenzi, Jeffrey J.
Object Type:
Report
System:
The UNT Digital Library
Turning Students On To Your Library's Web Site: using web site usability techniques to improve student use of your library's site
This paper introduces the concept of web site usability, provides a brief introduction to the techniques, offers examples from two “real life” studies that show how the techniques of formal usability studies, focus groups, and card sorts can be used and offers tips and tricks for employing these techniques.
Date:
February 5, 2004
Creator:
Thomsett-Scott, Beth
Object Type:
Paper
System:
The UNT Digital Library
Gelling, and Melting, Large Graphs by Edge Manipulation
None
Date:
November 5, 2013
Creator:
Tong, H.; Prakash, B. A.; Eliassi-Rad, T.; Faloutsos, M. & Faloutsos, C.
Object Type:
Article
System:
The UNT Digital Library
Standard Formats for Atomic Data: the APED
Standardized formats for atomic data used in calculating emission from a collisionally-ionized plasma are described. The formats use the astronomical-standard FITS format, and are extendible to other purposes, such as photoionization data. The formats emphasize storing references to the original data source and keeping the data in as-received form, to aid in checking against the original literature.
Date:
June 5, 2001
Creator:
Smith, R K; Brickhouse, N S; Liedahl, D A & Raymond, J C
Object Type:
Article
System:
The UNT Digital Library
Roadmap to the SRS computing architecture
This document outlines the major steps that must be taken by the Savannah River Site (SRS) to migrate the SRS information technology (IT) environment to the new architecture described in the Savannah River Site Computing Architecture. This document proposes an IT environment that is {open_quotes}...standards-based, data-driven, and workstation-oriented, with larger systems being utilized for the delivery of needed information to users in a client-server relationship.{close_quotes} Achieving this vision will require many substantial changes in the computing applications, systems, and supporting infrastructure at the site. This document consists of a set of roadmaps which provide explanations of the necessary changes for IT at the site and describes the milestones that must be completed to finish the migration.
Date:
July 5, 1994
Creator:
Johnson, A.
Object Type:
Report
System:
The UNT Digital Library
Merged Source Word Codes for Efficient, High-Speed Entropy Coding
We present our work on fast entropy coders for binary messages utilizing only bit shifts and table lookups. To minimize code table size we limit our code lengths with a novel type of variable-to-variable (VV) length code created from source word merging. We refer to these codes as merged codes. With merged codes it is possible to achieve a desired level of efficiency by adjusting the number of bits read from the source at each step. The most efficient merged codes yield a coder with an inefficiency of 0.4%, relative to the Shannon entropy, in the worst case. On one of our test systems a current implementation of coder using merged codes has a throughput of 35 Mbytes/sec.
Date:
December 5, 2002
Creator:
Senecal, J; Joy, K & Duchaineau, M
Object Type:
Article
System:
The UNT Digital Library
Image-driven mesh optimization
We describe a method of improving the appearance of a low vertex count mesh in a manner that is guided by rendered images of the original, detailed mesh. This approach is motivated by the fact that greedy simplification methods often yield meshes that are poorer than what can be represented with a given number of vertices. Our approach relies on edge swaps and vertex teleports to alter the mesh connectivity, and uses the downhill simplex method to simultaneously improve vertex positions and surface attributes. Note that this is not a simplification method--the vertex count remains the same throughout the optimization. At all stages of the optimization the changes are guided by a metric that measures the differences between rendered versions of the original model and the low vertex count mesh. This method creates meshes that are geometrically faithful to the original model. Moreover, the method takes into account more subtle aspects of a model such as surface shading or whether cracks are visible between two interpenetrating parts of the model.
Date:
January 5, 2001
Creator:
Lindstrom, P & Turk, G
Object Type:
Article
System:
The UNT Digital Library
FY 1999 Annual Self-Evaluation Report of the Pacific Northwest National Laboratory
This is a report of the Pacific Northwest National Laboratory's (Pacific Northwest's) FY1999 Annual Self-Evaluation Report. This report summarizes our progress toward accomplishment of the critical outcomes, objectives, and performance indicators as delineated in the FY1999 Performance Evaluation & Fee Agreement. It also summarizes our analysis of the results of Pacific Northwest's Division and Directorate annual self-assessments, and the implementation of our key operational improvement initiatives. Together, these provide an indication of how well we have used our Integrated Assessment processes to identify and plan improvements for FY2000. As you review the report you will find areas of significantly positive progress; you will also note areas where I believe the Laboratory could make improvements. Overall, however, I believe you will be quite pleased to note that we have maintained, or exceeded, the high standards of performance we have set for the Laboratory.
Date:
November 5, 1999
Creator:
LaBarge, Randy R.
Object Type:
Report
System:
The UNT Digital Library
Texas Week, Volume 1, Number 9, October 5, 1946
Weekly magazine containing Texas-related news and information: "Each week, Texas Week will present for you, through text and pictures, a concise summary of the significant news in the nation's greatest state. Included will be the most important news of state and local governments, business, industry and labor, agriculture and ranching, oil, books and the arts, religion, education and other vital phases of the state's political, economic, cultural and spiritual life" (p. 4, vol. 1, no. 1).
Date:
October 5, 1946
Creator:
Texas Week, Inc.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Department of Commerce Science and Technology Programs: Review of Dismantling Proposals in the 104th Congress
None
Date:
December 5, 1996
Creator:
Kruger, Lennard G.
Object Type:
Report
System:
The UNT Digital Library
Simulation of Detonation Problems with MLS Grid Free Methodology
The MLS grid free rezone method, a simple, flexible finite difference method to solve general mechanics problems, especially detonation problems, is proposed in this paper. The spatial points that carry time dependent data are distributed in space in such a way that provides nearly uniform spacing of points, accurate presentation of boundaries, easy variation of resolutions and arbitrary deletion of irrelevant regions. Local finite difference operators are obtained with simple MLS differentiation. There is no specific topological or geometrical restriction with the distribution of data points. Therefore this method avoids many drawbacks of the traditional CFD methods. Because of its flexibility, it can be used to simulate a wide range of mechanics problems. Because of its simplicity, it has the potential to become a preferred method. Most traditional CFD methods, from a SPH view, can be considered as special cases of grid free methods of specific kernel functions. Such a generalization allows the development of a unified grid free CFD code that can be switched to various CFD methods by switching the kernel functions. Because of the flexibility in management and simplicity of coding, such a unified code is desired.
Date:
June 5, 2002
Creator:
Yao, J; Gunger, M E & Matuska, D A
Object Type:
Article
System:
The UNT Digital Library
Development of Components for Wavelength Division Multiplexing Over Parallel Optical Interconnects
Parallel optical interconnects based on multimode fiber ribbon cables are emerging as a robust, high-performance data link technology that enhances throughput by using parallel arrays of fibers. While this technology has primarily been implemented as single wavelength point-to-point links, it can be significantly enhanced by wavelength division multiplexing (WDM). WDM enables both increased point-to-point bandwidth as well as more complex interconnect topologies and routing approaches that are particularly attractive for massively parallel processing (MPP) systems. Exploiting the advantages of WDM interconnects requires multi-wavelength sources, a low loss routing fabric, and small footprint wavelength selective filter modules. The Lambda-connect project ({gamma}- Connect) at Lawrence Livermore National Laboratory is a technology development and proof-of-principle demonstration of the enabling hardware for WDM parallel optical interconnects for use in massively parallel processing systems and other high-performance data link applications. This dissertation demonstrates several key system components and technologies for {gamma}-Connect.
Date:
July 5, 2001
Creator:
Patel, R
Object Type:
Report
System:
The UNT Digital Library
Role of Artificial Intelligence for Analysis of COVID-19 Vaccination-Related Tweets: Opportunities, Challenges, and Future Trends
Article states that vaccines, though reliable preventative measures for diseases, also raise public concerns; public apprehension and doubts challenge the acceptance of new vaccines including the COVID-19 vaccines. This study is the first attempt to review the role of AI approaches in COVID-19 vaccination-related sentiment analysis.
Date:
September 5, 2022
Creator:
Aljedaani, Wajdi; Saad, Eysha; Rustam, Furqan; de la Torre Díez, Isabel & Ashraf, Imran
Object Type:
Article
System:
The UNT Digital Library
Keeping it Real: A Comprehensive and Transparent Evaluation of Electronic Resources
Presentation slides from a pre-conference workshop at the 2014 Charleston Annual Library Conference. The workshop discusses a comprehensive and transparent evaluation of electronic resources.
Date:
November 5, 2014
Creator:
Harker, Karen; Enoch, Todd & Crawford, Laurel
Object Type:
Presentation
System:
The UNT Digital Library
The future of finite element applications on massively parallel supercomputers
The current focus in large scale scientific computing is upon parallel supercomputers. While still relatively unproven, these machines are being slated for production-oriented, general purpose supercomputing applications. The promise, of course, is to use massively parallel computers to venture further into scientific realisms by performing computations with anywhere from 10{sup 6} to 10{sup 9} grid points thereby, in principle, obtaining a deeper understanding of physical processes. In approaching this brave new world of computing with finite element applications, many technical issues become apparent. This paper attempts to reveal some of the applications-oriented issues which are facing code developers and ultimately the users of engineering and scientific applications on parallel supercomputers, but which seem to be remaining unanswered by vendors, researchers and centralized computing facilities. At risk is the fundamental way in which analysis is performed in a production sense, and the insight into physical problems which results. while at first this treatise may seem to advocate traditional register-to-register vector supercomputers, the goal of this paper is simply an attempt to point out what is missing from the massively parallel computing picture not only for production finite element applications, but also for grand challenge problems. the limiting issues for the use …
Date:
July 5, 1994
Creator:
Christon, M.
Object Type:
Report
System:
The UNT Digital Library
Comprehensive Approaches to Multiphase Flows in Geophysics - Application to nonisothermal, nonhomogenous, unsteady, large-scale, turbulent dusty clouds I. Hydrodynamic and Thermodynamic RANS and LES Models
The objective of this manuscript is to fully derive a geophysical multiphase model able to ''accommodate'' different multiphase turbulence approaches; viz., the Reynolds Averaged Navier-Stokes (RANS), the Large Eddy Simulation (LES), or hybrid RANSLES. This manuscript is the first part of a larger geophysical multiphase project--lead by LANL--that aims to develop comprehensive modeling tools for large-scale, atmospheric, transient-buoyancy dusty jets and plume (e.g., plinian clouds, nuclear ''mushrooms'', ''supercell'' forest fire plumes) and for boundary-dominated geophysical multiphase gravity currents (e.g., dusty surges, diluted pyroclastic flows, dusty gravity currents in street canyons). LES is a partially deterministic approach constructed on either a spatial- or a temporal-separation between the large and small scales of the flow, whereas RANS is an entirely probabilistic approach constructed on a statistical separation between an ensemble-averaged mean and higher-order statistical moments (the so-called ''fluctuating parts''). Within this specific multiphase context, both turbulence approaches are built up upon the same phasic binary-valued ''function of presence''. This function of presence formally describes the occurrence--or not--of any phase at a given position and time and, therefore, allows to derive the same basic multiphase Navier-Stokes model for either the RANS or the LES frameworks. The only differences between these turbulence frameworks are …
Date:
September 5, 2005
Creator:
Dartevelle, S.
Object Type:
Report
System:
The UNT Digital Library
Visual display of reservoir parameters affecting enhanced oil recovery. Quarterly report, April 1995--June 1995. 2nd Quarter, FY 1995
This report describes the development of a Spatial Database Manager (SDBM) shell/interface which will provide information to users on how to collect, store, analyze, interpret, visualize and present data in an integrated reservoir characterization study. SDBM will provide access to various geologic, reservoir visual data via a well log interpretation program (Crocker Petrolog), mapping and cross section software ( the GeoGraphix Exploration System Workbench) and a volume visualization application. Data tables for geochemical and petrographic data, well logs, well header information, well production data, formation tops, and fault trace data have been completed. Spectral mineral data are currently being collected which will ultimately be used for identification of mineral assemblages. The geochemical program CHILLER is being used to model fluid-rock interactions and possibly porosity predictions.
Date:
April 5, 1995
Creator:
Wood, J.R.
Object Type:
Report
System:
The UNT Digital Library
TRAC-P validation test matrix. Revision 1.0
This document briefly describes the elements of the Nuclear Regulatory Commission`s (NRC`s) software quality assurance program leading to software (code) qualification and identifies a test matrix for qualifying Transient Reactor Analysis Code (TRAC)-Pressurized Water Reactor Version (-P), or TRAC-P, to the NRC`s software quality assurance requirements. Code qualification is the outcome of several software life-cycle activities, specifically, (1) Requirements Definition, (2) Design, (3) Implementation, and (4) Qualification Testing. The major objective of this document is to define the TRAC-P Qualification Testing effort.
Date:
September 5, 1997
Creator:
Hughes, E. D. & Boyack, B. E.
Object Type:
Report
System:
The UNT Digital Library
Internet Privacy: Agencies' Efforts to Implement OMB's Privacy Policy
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on whether agencies were adhering to the Office of Management and Budget's (OMB) memorandum requiring federal agencies to post privacy policies on their Internet Websites, focusing on: (1) whether agencies have clearly labelled and easily accessed privacy policies posted on their principal Web sites; (2) whether agencies' privacy policies posted on their principal Web sites inform visitors about what information an agency collects, why the agency collects it, and how the agency will use the information; (3) how selected agencies have interpreted the requirement to post privacy policies at major entry points; and (4) whether selected agencies have posted privacy policies on Web pages where the agency collects substantial personal information or when applicable, notices that refer to the Privacy Act of 1974."
Date:
September 5, 2000
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library