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21.
Partitioning,Automation and Error Recovery in the Control and Monitoring System of an LHC Experiment
C.Gaspar 《高能物理与核物理计算国际会议公报》2001,(1):113-116
The Joint Controls Project(JCOP)is a collaboration between CERN and the four LHC experiments to find and implement common solutions for their control and monitoring systems.As part of this project and Architecture Working Group was set up in order to study the requirements and devise an architectural model that would suit the four experiments.Many issues were studied by this working group:Alarm handling,Access Control,Hierarchical Control,etc.This paper will report on the specific issue of hierarchical control and in particular partitioning,automation and error recovery. 相似文献
22.
After over 10 years of existence,DELPHI off-line software counts altogether over 1500k lines.Being written by multitude of authorsk,many of them having already left,it is very incoherent and extremely difficult to maintain:it is written in Fortran,it relies on obsolete tools and it has to run in a distributed multi-os computing environment.Still.as the analysis of LEP data will continue during the next 5-6 years,this code will have to be used and be ported to yet another platforms.In order to ensure high efficiency in use of our resources,we have developed several tools which hide from the user most of the intricaices of the operating system,batch system and data access.These tools are well integrated and easy to maintain.As the problems are quite typical for the High Energy Physics software,we believe that the ideas we have implemented can be useful also for the next generation of experiments. 相似文献
23.
Object-oriented (OO) approach is the key technology to develop a software system in the LHC/ATLAS experiment.We developed a OO simulation framework based on the Geant4 general-purpose simulation toolkit.Because of complexity of simulation in ATLAS,we payed most attention to the scalability in its design.Although the first target to apply this framework is to implement the ATLAS full detector simulation program,there is no experiment-specific code in it,therefore it can be utilized for the development of any simulation package,not only for HEP experiments but also for various different research domains ,In this paper we discuss our approach of design and implementation of the framework. 相似文献
24.
基于ActiveX机制的VB与MATLAB数据交换 总被引:3,自引:0,他引:3
MATLAB是目前应用最广泛的数值科学计算语言.同时也是系统分析和仿真的强大工具.VB是目前使用最广泛的可视化编程工具.本文介绍一种利用ActiveX机制实现VB与MATLAB数据交换的方法.从而可以充分结合两个软件的优点.大大缩短软件开发周期. 相似文献
25.
姚宏 《应用数学与计算数学学报》1998,12(2):95-96
随着科技的进步,尤其以信息技术、通讯技术为核心的高新技术的蓬勃兴起,使现代企业的管理面临着新的挑战。 一、计算机企业管理的最新发展 相似文献
26.
由Philips引进的PW1700X射线衍射仪织构测量系统只能用反射法,按螺旋线扫测极目数据,测绘极角。α≤85°的不完整极图。经功能开发后,建立了织构分析测算系统,织构分析应用软件包,包括不完整极图测量与ODF(取向分布函数)计算,回算全极图与反极图,可彩色屏显考贝,并能进行织构的定量分析。适用于立方和六方品系多晶织构材料分析。近两年应用表明,软件功能优异。 相似文献
27.
Run 2 at Fermilab began in March,2001,CDF will collect data at a maximum rate of 20 MByte/sec during the run.The offline reconstruction of this data must keep up with the data taking rate.This reconstruction occurs on a large PC farm,which must have the capacity for quasi-real time data reconstruction,for reprocessing of some data and for generation and processing of Monte Carlo samples.In this paer we will give the design requirements ofr the farm,describe the hardware and software design used to meet those requirements,describe the early experiences with Run 2 data processing,and discussfuture prospects for the farm,including some ideas about Run 2b processing. 相似文献
28.
The fast turnover of software technologies,in particular in the domain of in teractivity(covering user interface and visualisation)makes it difficult for a small group of people to produce complete and polished software-tools before the underlying technologies make them obsolete.At the HepVis ‘99 workshop,a working group has been formed to improve the rpoduction of software tools for data analysis in HENP.Beside promoting a distributed development organisation,one goal of the group is to systematically design a set of abstract interfaces based on using modern OO analysis and OO design techniques.An initial domain analysis has come up with several categories(componets)found in typical data analysis tools:historams,Ntuples,Functions,Vectors,Fitter,Plotter,Analyzer and Controller,Special Emphasis was put on reducing the couplings between the categories to a minimum,thus optimising re-use and maintainability of any component individually.The interfaces have been defined in Java and C and implementations exist in the form of libraries and tools using C (Anaphe/Lizard,Openscientist)and Java(Java Analysis Studio),A special implementation aims at accessing the Java Liraries(through their Abstract Interfaces)from C .This paper giver an overview of the architecture and design of the various components for data analysis as discussed in AIDA. 相似文献
29.
This note describes the construction of hardware and software of the BESPC-FARM and BES offline data analysis environment in Linux platform.The job management packages NQS is described.The performance of the BESPCFARM also be presented. 相似文献
30.
A series of software has been developed for small-scale data acquisition and analysis systems.Various classes were written un C and partly in Java,and a Private protocol was introduced for object persistency.A demonstrationn system was built and the performance was tested in a beam test at KEK-PS. 相似文献