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Brookhaven highlights for fiscal year 1991, October 1, 1990--September 30, 1991

Description: This report highlights Brookhaven National Laboratory's activities for fiscal year 1991. Topics from the four research divisions: Computing and Communications, Instrumentation, Reactors, and Safety and Environmental Protection are presented. The research programs at Brookhaven are diverse, as is reflected by the nine different scientific departments: Accelerator Development, Alternating Gradient Synchrotron, Applied Science, Biology, Chemistry, Medical, National Synchrotron Light Source, Nuclea… more
Date: January 1, 1991
Creator: Rowe, M.S.; Cohen, A.; Greenberg, D.; Seubert, L. & Kuper, J.B.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Diskless LSI-11 systems

Description: Programs for dedicated LSI-11 based systems can easily be stored in ROM instead of floppy disks, yet execute the same as disk-stored programs. Two sample systems are described.
Date: January 1, 1982
Creator: Ford, W. & Shirk, D. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Institutional research and development, FY 1987

Description: The Institutional Research and Development program at Lawrence Livermore National Laboratory fosters exploratory work to advance science and technology, disciplinary research to develop innovative solutions to problems in various scientific fields, and long-term interdisciplinary research in support of defense and energy missions. This annual report describes research funded under this program for FY87. (DWL)
Date: January 1, 1987
Creator: Struble, G. L.; Lawler, G. M.; Crawford, R. B.; Kirvel, R. D.; Peck, T. M.; Prono, J. K. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Automatic program timing profiles with FTN4

Description: Design of a scheme for producing execution timing profiles of FORTRAN programs automatically is proposed with a recommendation to implement it as an option to the compiler. An experimental implementation on the LBL 7600 is also described. 1 figure.
Date: September 1, 1980
Creator: Friedman, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Gas chromatographic studies of the relative retention of the sulfur isotopes in carbonyl sulfide, carbon disulfide, and sulfur dioxide

Description: A precision gas chromatograph, coupled to a quadrupole mass spectrometer and an on-line computer, was used to study the fractionation on Porasil A of the /sup 32/S//sup 34/S isotopic pair in a variety of sulfur-containing molecules. Carbonyl sulfide (COS) yielded an average ..cap alpha.. value of 1.00074 +- 0.00017 (standard deviation) for the temperature range 25/sup 0/C to 75/sup 0/C. The carbon disulfide (CS/sub 2/) value was 1.00069 +- 0.00023 for the range 53/sup 0/C to 103/sup 0/C, and th… more
Date: January 18, 1980
Creator: Fetzer, J.C. & Rogers, L.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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General multi-configuration Hartree--Fock program: MCHF77. [In FORTRAN (double precision) for IBM 360 and 370]

Description: This technical report contains a listing of a general program for multi-configuration Hartree--Fock (MCHF) calculations, including its documentation. Several examples are given showing how the program may be used. Typical output for several cases is also presented. This program has been tested over an extended period of time for a large variety of cases. This program is written for the IBM 360 or 370 in double-precision arithmetic.
Date: November 1, 1977
Creator: Fischer, C F
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Basic linear algebra subprograms for FORTRAN usage. [BLAS, in FORTRAN and assembly language for IBM 360/67, CDC 6600 and 7600, and Univac 1108]

Description: A package of 38 low-level subprograms for many of the basic operations of numerical linear algebra is presented. The package is intended to be used with FORTRAN. The operations in the package are dot products, elementary vector operations, Givens transformations, vector copy and swap, vector norms, vector scaling, and the indices of components of largest magnitude. The subprograms and a test driver are available in portable FORTRAN. Versions of the subprograms are also provided in assembly lang… more
Date: October 1, 1977
Creator: Lawson, C.L.; Hanson, R.J.; Kincaid, D.R. & Krogh, F.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The performance of the NEC SX-2 and Cray X-MP supercomputers

Description: Since our first article on the Japanese supercomputers appeared in the December 1985 issue of Computer, we have conducted additional benchmarks of the new NEC SX-2 vector processor. We present these new results for the SX-2 and updated timings of the X-MP/48. 5 refs., 1 fig., 6 tabs.
Date: January 1, 1987
Creator: Lubeck, O. M.; Moore, J. W. & Mendez, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of a Cray performance tool using a large hydrodynamics code

Description: This paper will discuss one of these automatic tools that has been developed recently by Cray Research, Inc. for use on its parallel supercomputer. The tool is called ATEXPERT; when used in conjunction with the Cray Fortran compiling system, CF77, it produces a parallelized version of a code based on loop-level parallelism, plus information to enable the programmer to optimize the parallelized code and improve performance. The information obtained through the use of the tool is presented in an … more
Date: January 1, 1992
Creator: Lord, K.M. (Cray Research, Inc., Eagan, MN (United States)) & Simmons, M.L. (Los Alamos National Lab., NM (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Technical Area 55 Entry Control System (ECS). [Plutonium facilities]

Description: The exchange badge system which was used at the Plutonium Facility located in Technical Area 55 was replaced on a trial basis with an automated Entry Control System. As a result of the success of the trial system, a new system incorporating expanded features and increased reliability is being implemented. The new Entry Control System incorporates several features not previously available in relatively inexpensive entry systems. The reliability of the system is enhanced by redundant microprocess… more
Date: January 1, 1984
Creator: Beaumont, A.; Brundige, E.; DesJardin, R. & Rivera, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Computer-Controlled System for Rapid Soil Analysis of /sup 226/Ra

Description: A computer-controlled multichannel analysis system has been developed by the Radiological Survey Activities Group at Oak Ridge National Laboratory (ORNL) for the Department of Energy (DOE) in support of the DOE's remedial action programs. The purpose of this system is to provide a rapid estimate of the /sup 226/Ra concentration in soil samples using a 6 x 9-in. NaI(Tl) crystal containing a 3.25-in. deep by 3.5-in. diameter well. This gamma detection system is controlled by a mini-computer with … more
Date: January 1, 1984
Creator: Doane, R. W.; Berven, B. A. & Blair, M. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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An optimized algorithm for solving the nodal diffusion method on shared memory multiprocessors

Description: Nodal methods play a special role in reactor physics calculations. In recent papers the high computational efficiency of nodal methods has been established and the development of more efficient algorithms tailored to the advanced architectures of modern day computers proposed. The rapidly changing architectures of today's computer influence the way codes have to be programmed so that reasonable speed up and efficiency are attained. We have applied these concepts in solving the one-group neutron… more
Date: January 1, 1990
Creator: Kirk, B.L. & Azmy, Y.Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Performance evolution in a large scale system. [DEMOS operating system]

Description: This paper documents the evolution of system performance in an operating system from its initial use by a few friendly users in October 1978 to its present state. The system, DEMOS, was developed for the Cray Research Inc. (CRI) Cray-1 computer at the Los Alamos Scientific Laboratory (LASL) by staff members in the LASL Computer Science and Services Division. Some important features of DEMOS architecture are described. It is shown how the robustness in the design permitted major reduction in ove… more
Date: January 1, 1980
Creator: Brice, R.S. & Anderson, J.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Shiva automatic pinhole alignment

Description: This paper describes a computer controlled closed loop alignment subsystem for Shiva, which represents the first use of video sensors for large laser alignment at LLNL. The techniques used on this now operational subsystem are serving as the basis for all closed loop alignment on Nova, the 200 terawatt successor to Shiva.
Date: September 5, 1980
Creator: Suski, G.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Portable software for distributed readout controllers and event builders in FASTBUS and VME

Description: We report on software developed as part of the PAN-DA system to support the functions of front end readout controllers and event builders in multiprocessor, multilevel, distributed data acquisition systems. For the next generation data acquisition system we have undertaken to design and implement software tools that are easily transportable to new modules. The first implementation of this software is for Motorola 68K series processor boards in FASTBUS and VME and will be used in the Fermilab ac… more
Date: December 1, 1989
Creator: Pordes, R.; Berg, D.; Berman, E.; Bernett, M.; Brown, D.; Constanta-Fanourakis, P. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Magnetic fusion energy and computers

Description: The application of computers to magnetic fusion energy research is essential. In the last several years the use of computers in the numerical modeling of fusion systems has increased substantially. There are several categories of computer models used to study the physics of magnetically confined plasmas. A comparable number of types of models for engineering studies are also in use. To meet the needs of the fusion program, the National Magnetic Fusion Energy Computer Center has been established… more
Date: January 1, 1982
Creator: Killeen, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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CDC 7600 LTSS programming stratagens: preparing your first production code for the Livermore Timesharing System

Description: This report deals with some techniques in applied programming using the Livermore Timesharing System (LTSS) on the CDC 7600 computers at the National Magnetic Fusion Energy Computer Center (NMFECC) and the Lawrence Livermore Laboratory Computer Center (LLLCC or Octopus network). This report is based on a document originally written specifically about the system as it is implemented at NMFECC but has been revised to accommodate differences between LLLCC and NMFECC implementations. Topics include… more
Date: August 15, 1977
Creator: Fong, K. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analytical model for the dynamic resistivity of electrically-exploded conductors

Description: A detailed model for the dynamic resistivity of an exploding conductor presents many difficulties. An electrically-exploded conductor undergoes significant hydrodynamic expansion as it is heated. Resistivity is a function of both the temperature and density of a conductor and realistic models for resistivity over the range of parameter space experienced by an exploding conductor are quite complex. See for example, the model of Lee and More (1984). Calculation of the hydrodynamic expansion of th… more
Date: October 10, 1986
Creator: Lee, R. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Neutral particle beam distributed data acquisition system

Description: A distributed data acquisition system has been designed to support experiments at the Argonne Neutral Particle Beam Accelerator. The system uses a host VAXstation II/GPX computer acting as an experimenter's station linked via Ethernet with multiple MicroVAX IIs and rtVAXs dedicated to acquiring data and controlling hardware at remote sites. This paper describes the hardware design of the system, the applications support software on the host and target computers, and the real-time performance.
Date: January 1, 1987
Creator: Daly, R.T.; Kraimer, M.R. & Novick, A.H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A guide to writing procurement specifications for new and existing CHAWS sites

Description: Turn-key Chemical Hazard Warning Systems (CHAWS) have been designed by the Lawrence Livermore National Laboratory (LLNL) and installed at a number of US Army sites. This document is intended to be used as a guide by those charged with writing procurement specification for both new and existing CHAWS sites. It discusses issues of system design and the functional requirements for both hardware and software. Suggestions are made for those interested in updating the computer platform and/or operati… more
Date: September 1, 1991
Creator: Martins, S.A. & Fry, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Overview of the Division 2351 Neutron Generator Test Facility waveform digitizing system. [Explosively activated neutron generators]

Description: All neutron generator waveforms from units tested at the SLA neutron generator test site are digitized and the digitized data stored in the CDC 6600 tape library for display and analysis using the CDC 6600 computer. The digitizing equipment consists mainly of seven Biomation Model 8100 transient recorders, Digital Equipment Corporation PDP 11/20 computer, RK05 disk, seven-track magnetic tape transport, and appropriate DEC and SLA controllers and interfaces. The PDP 11/20 computer is programmed … more
Date: February 1, 1978
Creator: Bryant, T.C. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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AN INFORMATION STORAGE AND RETRIEVAL SYSTEM FOR IRRADIATION EFFECTS IN METALS

Description: An information storage and retrieval system (PIC) was developed, utilizing the IBM 7090 computer, for handling data pertaining to the effects of neutron irradiation on metals. The input includes a reference identification, an appropriate abstract or extract summarizing the article, code identification parameters analogous to those used by the ASM-SLA Literature Classification System, and special codes identifying relevant irradiation and testing parameters. The output contains the same data plu… more
Date: August 15, 1963
Creator: Bush, S. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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