基于分布式系统的地震数据处理平台

基于分布式应用控制系统的地震数据处理平台是针对地震数据处理的特点设计的.该平台为地震数据处理提供了一个分布处理的框架,支持地震数据的自动处理和交互分析,把分布于各个工作站上的UNIX软件进程连接为一个统一的、一致的处理分析平台.该平台的建立,大大加快了地震数据处理的速度.     

The BaBar Data Reconstruction Control System

The BaBar experiment is characterized by extremely high luminosity and very large volume of data produced and stored, with increasing computing requirements each year. To fulfill these requirements a control system has been designed and developed for the offline distributed data reconstruction system. The control system described in this paper provides the performance and flexibility needed to manage a large number of small computing farms, and takes full benefit of object oriented (OO) design. The infrastructure is well isolated from the processing layer, it is generic and flexible, based on a light framework providing message passing and cooperative multitasking. The system is distributed in a hierarchical way: the top-level system is organized in farms, farms in services, and services in subservices or code modules. It provides a powerful finite state machine framework to describe custom processing models in a simple regular language. This paper describes the design and evolution of this control system, currently in use at SLAC and Padova on$sim$450 CPUs organized in nine farms.     

Real Time Global Tests of the ALICE High Level Trigger Data Transport Framework

The High Level Trigger (HLT) system of the ALICE experiment is an online event filter and trigger system designed for input bandwidths of up to 25 GB/s at event rates of up to 1 kHz. The system is designed as a scalable PC cluster, implementing several hundred nodes. The transport of data in the system is handled by an object-oriented data flow framework operating on the basis of the publisher-subscriber principle, being designed fully pipelined with lowest processing overhead and communication latency in the cluster. In this paper, we report the latest measurements where this framework has been operated on five different sites over a global north-south link extending more than 10,000 km, processing a ldquoreal-timerdquo data flow.     

A High-Performance Data-Acquisition and Data-Analysis Computer System

A high-performance data-acquisition and dataanalysis computer system has been planned for the Cyclotron Institute, Texas A& M University. This system is based on a pair of identical mediumscale central processing units; it will fulfill most of the laboratory's requirements for off-line data analysis, computation and program development while providing substantial real-time data analysis capability. The advantages of such a capability are discussed in light of our past experience with comprehensive real-time data analysis.     

Upgraded data service system for HT-7 Tokamak

A data service system plays an indispensable role in HT-7 Tokamak experiment. Since the former system doesn＇t provide the function of timely data procession and analysis, and all client software are based on Windows, it can＇t fulfill virtual fusion laboratory for remote researchers. Therefore, a new system which is simplified by three kinds of data servers and one data analysis and visualization software tool has been developed. The data servers include a data acquisition server based on file system, an MDSplus server used as the central repository for analysis data, and a web server. Users who prefer the convenience of application that can be run in a Web Browser can easily access the experiment data without knowing X-Windows. In order to adjust instruments to control experiment the operators need to plot data duly as soon as they are gathered. To satisfy their requirement, an upgraded data analysis and visualization software GT-7 is developed. It not only makes 2D data visualization more efficient, but also it can be capable of processing, analyzing and displaying interactive 2D and 3D graph of raw. analyzed data by the format of ASCII, LZO and MDSplus.     

基于SEED微计算机的实时数据获取与处理系统的软件

本文叙述了基于SEED-80微型计算机的实时数据获取与处理统软件的设计及其功能。该软件系统灵活、方便。其主要功能监视与控制各实时数据获取通道,管理计算机各外围设备并按用户的要求进行数据处理。在程序设计上,由于采用了类似于模块程序方法和复盖技术,因而对计算机内存进行了有效的分配与管理并实现了前后台操作。     

基于PXI-5105示波器卡的数据获取系统

为满足质子诱发碎裂反应研究设备（PISA）中探测器系统测试的需求,研制了一套基于PXI-5105示波器卡的数据获取系统。该系统最高采样率达60M/s,可采集宽度为μs量级的波形信号。系统工作在WindowsXP操作系统下,通过一个简易操作的图形用户界面（GUI）控制。数据的在线显示和分析程序基于CERN的ROOT分析平台。通过实验检验,系统工作稳定,最大数据获取速率达50MB/s。     

基于Gamma全吸收型BaF2探测装置的数据获取系统

为精确测量keV能区的中子俘获反应截面,研制了一套基于Gamma全吸收型BaF₂探测装置的数据获取系统。数据获取系统工作在Linux环境下,应用FlashADC采集探测器的脉冲信号。程序控制、数据存储、在线监控与分析程序基于Root平台。通过测量⁶⁰Co和¹³⁷Cs源,得到了数据获取系统主要性能的测试结果,其满足GTAF装置精确测量中子俘获反应截面的要求。     

Data Processing and Acquisition System for the HT-7 Multipulse Thomson Scattering Diagnostic

This article describes the data processing and acquisition system for the HT-7 multipulse Thomson scattering diagnostic. An eight-pulse laser is used in the Thomson scattering system to obtain electron temperature profiles at eight different times throughout an entire plasma discharge. The major components of the diagnostic system consist of a multipulse iNd-glass laser,a photodetector‘‘s subsystem, a calibration set and a CAMAC data processing and acquisition system. The data processing software along with LeCroy 2250L will perform the data acquisition.In order to simplify the operation and extend the capability of its compatibility with other math softwares, the processing software has been improved by the authors. The new software based on the VC easily utilizes some math softwares to calculate the electron temperature. The new software is simpler and more operational than the old one.     

基于XML的粒子物理数据分析的接口及框架

介绍了一个基于可扩展标记语言(XML)的粒子物理数据分析接口及其框架的实现.该接口采用简明的XML表达数据分析中的基本过程:如事例筛选,运动学拟合,粒子鉴别等,以及基本逻辑流程:只有前一过程成功时才继续下一过程.该框架通过解析XML界面文件,采用运行时配置和动态执行的模式,从而无需编译即可执行分析.与使用C++编写分析...     

~(222)Rn/~(220)Rn及其子体测量系统的软件设计

本文基于~(222)Rn/~(220)Rn测量仪与~(222)Rn/~(220)Rn子体测量仪,利用VC++开发环境的MFC框架开发了一套上位机触摸屏软件系统。该软件系统具有实时监控和图形处理、历史数据查询和分析、参数设置和运行控制、报表打印和导出等功能,经长期测试,本软件能满足测量环境~(222)Rn/~(220)Rn及其子体的连续监测的需求。     

多功能网络化核数据获取和处理系统

应用网络技术将多个功能不同、相互独立的以PC微机为基础组成的核数据获取和处理子系统有机互联,组成了一种新型的多功能网络化核数据获取和处理系统,探讨了系统的最佳组成模式、工作原理及实现方法,给出了系统在2．5MeV静电加速器上进行团簇特性研究的初步结果。     

γ照相机图象处理系统

本文提出一个基于微机的γ照相机图象处理系统,它采用低档通用微机与专用数据采集、处理和显示硬件相结合的方案,大大提高处理速度并有较高的性能价格比。     

A VME multiprocessor data acquisition system combining a UNIXworkstation and real-time microprocessors

A data acquisition system combining a UNIX workstation and one or several real-time microprocessors has been designed and built for the tandem accelerator. The hardware and software options chosen for reading, processing, storing, and displaying real-time experimental data are detailed. The fixed components of the hardware architecture are the VME bus for data processing and the CAMAC system for transferring digital data. A multitask multiprocessor software based on shared memory and message passing has been developed around a mixed UNIX/pSOS kernel     

Soft real-time EPICS extensions for fast control: A case study applied to a TCV equilibrium algorithm

For new control systems development, ITER distributes CODAC Core System that is a software package based on Linux RedHat, and includes EPICS (Experimental Physics and Industrial Control System) as software control system solution. EPICS technology is being widely used for implementing control systems in research experiments and it is a very well tested technology, but presents important lacks to meet fast control requirements. To manage and process massive amounts of acquired data, EPICS requires additional functions such as: data block oriented transmissions, links with speed-optimized data buffers and synchronization mechanisms not based on system interruptions. This EPICS limitation turned out clearly during the development of the Fast Plant System Controller Prototype for ITER based on PXIe platform.In this work, we present a solution that, on the one hand, is completely compatible and based on EPCIS technology, and on the other hand, extends EPICS technology for implementing high performance fast control systems with soft-real time characteristics. This development includes components such as: data acquisition, processing, monitoring, data archiving, and data streaming (via network and shared memory). Additionally, it is important to remark that this system is compatible with multiple Graphics Processing Units (GPUs) and is able to integrate MatLab code through MatLab engine connections. It preserves EPICS modularity, enabling system modification or extension with a simple change of configuration, and finally it enables parallelization based on data distribution to different processing components.With the objective of illustrating the presented solution in an actual tokamak application, we have implemented fundamental tokamak equilibrium quantities such as plasma position, Shafranov shift or internal inductance. The algorithms have been parallelized and implemented for its execution on CPU, GPUs and Matlab, and have been tested using actual magnetic data from the TCV tokamak fast control system.     

中国评价库CENDL-3的宏观检验现状(英文)

CENDL-3是中国评价库CENDL的最新版本,通过采用群常数制作程序系统NJOY及反应堆栅元计算程序WIMSD5A和蒙特卡罗程序MCNP对CENDL-3库进行了包括热堆和快堆的基准装置的检验计算,并将检验结果与实验结果和其它库的计算结果进行了比较和分析。表明CENDL-3库中铀同位素的检验结果是相当不错的;由于裂变谱的改进,钚同位素的检验结果也有了相当好的改进;尽管9Be的检验结果有了明显改进,但计算的keff与其它库相比仍有点偏低。     

基于大数据和关系型数据相融合的反应堆远程运维数据管理系统开发

根据核电运维的流程详细梳理了运维的各类数据，分析了数据类型、数据特征和量级，提出了大数据和关系型数据相融合的数据管理构架；根据远程运维的业务特点，进一步分析了核电运维的数据管理需求，基于B/S构架开发了基于大数据和关系型数据相融合的数据管理系统，创新了核电运维数据的管理模式。该系统已在核电运维服务中得到了有效应用，极大提升了核电运维工作效率，同时也为后续智能运维的研究提供了基础。      

基于MS－Windows3．X环境的核保障数据获取处理软件开发

论述基于ＭｉｃｒｏｓｏｆｔＷｉｎｄｏｗｓ３．Ｘ环境下的核保障数据获取处理软件的开发方法，并讨论图形用户界面、多窗口环境能谱显示技术、能谱数据获取与处理功能等主要模块的设计以及面向对象的程序设计方法（ＯＯＰ）的应用。所述方法和程序已应用于有关核保障无损分析系统，同时为构造多窗口多任务环境下的应用软件提供了一种有效的原型化设计途径。     

Construction and Implementation of the Online Data Analysis System on EAST

In order to obtain diagnostic data with physical meaning,the acquired raw data must be processed through a series of physical formulas or processing algorithms.Some diagnostic data are acquired and processed by the diagnostic systems themselves.The data processing programs are specific and usually run manually,and the processed results of the analytical data are stored in their local disk,which is unshared and unsafe.Thus,it is necessary to integrate all the specific process programs and build an automatic and unified data analysis system with shareable data storage.This paper introduces the design and implementation of the online analysis system.Based on the MDSplus event mechanism,this system deploys synchronous operations for different processing programs.According to the computational complexity and real-time requirements,combined with the programmability of parallel algorithms and hardware costs,the OpenMP parallel processing technology is applied to the EAST analysis system,and significantly enhances the processing efficiency.     

利用组件式GIS开发砂岩型铀矿综合评价信息系统

组件式GIS具有功能灵活、使用方便等特点,适合于开发地学领域专业GIS应用系统。在铀资源勘查评价过程中,计算机应用系统已成为必不可少的有力工具,而且应具备专业处理、海量数据的管理与存储、空间分析、可视化与制图输出等功能。提出了基于ArcGIS Engine开发砂岩型铀矿铀资源综合评价信息系统的技术路线,利用ArcGIS Engine可以方便快速地实现GIS功能,因此,开发人员能将大部分精力致力于专业功能的开发。开发出的系统运行稳定、功能灵活、具有较强的专业性。