ARTISTIC CHARM OF MANDELBROT FAMILY AND JULIA FAMILY——A FURTHER DISCUSSION CONCERNING MANDELBROT FAMILY AND JULIA FAMILY

ＡＲＴＩＳＴＩＣＣＨＡＲＭＯＦＭＡＮＤＥＬＢＲＯＴＦＡＭＩＬＹＡＮＤＪＵＬＩＡＦＡＭＩＬＹ———ＡＦＵＲＴＨＥＲＤＩＳＣＵＳＳＩＯＮＣＯＮＣＥＲＮＩＮＧＭＡＮＤＥＬＢＲＯＴＦＡＭＩＬＹＡＮＤＪＵＬＩＡＦＡＭＩＬＹＷａｎｇＹａｎＴａｏＭａｏｑｉＸｕＭａ...     

DETECTING AND DETERMINING THE CHARACTERISTIC POINTS ON THE SURFACE／SURFACE INTERSECTIONS

ＤＥＴＥＣＴＩＮＧＡＮＤＤＥＴＥＲＭＩＮＩＮＧＴＨＥＣＨＡＲＡＣＴＥＲＩＳＴＩＣＰＯＩＮＴＳＯＮＴＨＥＳＵＲＦＡＣＥ／ＳＵＲＦＡＣＥＩＮＴＥＲＳＥＣＴＩＯＮＳＺｅｎｇＸｉａｎｇｌｉｎ；ＷａｎｇＱｉｆｕ；ＨｕａｎｇＺｈｅｎｇｄｏｎｇ；ＺｈｏｕＪｉＤＥＴ...     

GHCAD: A Feature-based Design System

ＧＨＣＡＤ：ＡＦＥＡＴＵＲＥ－ＢＡＳＥＤＤＥＳＩＧＮＳＹＳＴＥＭＱｉａｎＸｉａｏｐｉｎｇ；ＸｉａｎｇＷｅｎ；ＺｈａｎｇＸｉｎｇｆａｎｇ；ＺｈｏｕＪｉ；ＹｕＪｕｎＧＨＣＡＤ：ＡＦＥＡＴＵＲＥ－ＢＡＳＥＤＤＥＳＩＧＮＳＹＳＴＥＭ￥ＱｉａｎＸｉａｏｐｉｎｇ...     

FRAMEWORK OF A DISTRIBUTED ENGINEERING DBMS

ＦＲＡＭＥＷＯＲＫＯＦＡＤＩＳＴＲＩＢＵＴＥＤＥＮＧＩＮＥＥＲＩＮＧＤＢＭＳＷａｎｇＴａｏ；ＬｉｎＺｏｎｇｋａｉ；ＧｕｏＹｕｃｈａｉＳＭＯＯＴＨＳＵＲＦＡＣＥＩＮＴＥＲＰＯＬＡＴＩＯＮＯＶＥＲＡＲＢＩＴＲＡＲＹＴＲＩＡＮＧＵＬＡＴＩＯＮＳＢＹＳＵＢＤ...     

一种新的求解线性时变系统的数值解法

一种新的求解线性时变系统的数值解法贾磊，孙优贤（山东轻工业学院机电系）（浙江大学工业控制研究所）ＡＮＥＷＮＵＭＥＲＩＣＡＬＭＥＴＨＯＤＯＦＴＨＥＬＩＮＥＡＲＴＩＭＥ－ＶＡＲＩＮＧＳＹＳＴＥＭＳＶＩＡＳＨＩＦＴＥＤＪＡＣＯＢＩＳＥＲＩＥＳ￥ＪｉａＬｅｉ...     

任意形状容器装液不定常晃动的边界元模型

任意形状容器装液不定常晃动的边界元模型冯振兴，李正秀（武汉大学）ＬＡＧＲＡＮＧＩＡＮＢＥＭＦＯＲＡＮＵＮＳＴＥＡＤＹＳＬＯＳＨＩＮＧＭＯＤＥＬＳＵＩＴＡＢＬＥＴＯＡＲＢＩＴＲＡＲＹＴＡＮＫＳ￥ＦｅｎｇＺｈｅｎ－ｘｉｎｇ；ＬｉＺｈｅｎ－ｘｉｕ（Ｗｕｈａ...     

结构动力响应计算的瞬时界面关连矩阵法

结构动力响应计算的瞬时界面关连矩阵法杜国君，彭天国（东北重型机械学院）ＴＲＡＮＳＩＥＮＴＢＯＵＮＤＡＲＹＳＵＲＦＡＣＥＲＥＬＥＶＡＮＴＭＡＴＲＩＸＭＥＴＨＯＤＦＯＲＣＡＬＣＵＬＡＴＩＮＧＤＹＮＡＭＩＣＲＥＳＰＯＮＳＥＯＦＳＴＲＵＣＴＵＲＥ￥ＤｕＧｕｏ...     

COMPUTER GRAPHIC ASSEMBLY TECHNOLOGY FOR COMPOUND-BODY

ＣＯＭＰＵＴＥＲＧＲＡＰＨＩＣＡＳＳＥＭＢＬＹＴＥＣＨＮＯＬＯＧＹＦＯＲＣＯＭＰＯＵＮＤ－ＢＯＤＹ￥ＳｈａｎｇＪｉａｎｚｈｏｎｇ；ＰａｎＣｕｎｙｕｎ（ＤｅｐａｒｔｍｅｎｔｏｆＰｒｅｃｉｓｉｏｎＭａｃｈｉｎａｒｙａｎｄｉｎｓｔｒｕｍｅｎｔＮａｔｉｏｎａ...     

实对称矩阵最大特征值极小化问题的一个BT型ε－次梯度算法

实对称矩阵最大特征值极小化问题的一个ＢＴ型ε－次梯度算法叶东毅（福州大学计算机科学系）ＡＢＴＴＹＰＥε－ＳＵＢＧＲＡＤＩＥＮＴＡＬＧＯＲＩＴＨＭＦＯＲＭＩＮＩＭＩＺＩＮＧＴＨＥＧＲＥＡＴＥＳＴＥＩＧＥＮＶＡＬＵＥＯＦＡＲＥＡＬＳＹＭＭＥＴＲＩＣＭＡＴ...     

乘同余伪随机数序列的二维结构分析

乘同余伪随机数序列的二维结构分析罗平（武汉交通科技大学）ＯＮＴＨＥＴＷＯ－ＤＩＭＥＮＳＩＯＮＡＬＳＴＲＵＣＴＵＲＥＯＦＴＨＥＳＥＱＵＥＮＣＥＯＦＲＡＮＤＯＭＮＵＭＢＥＲＳＧＥＮＥＲＡＴＥＤＢＹＭＵＬＴＩＰＬＩＣＡＴＩＶＥＣＯＮＧＲＵＥＮＴＩＡＬＧＥＮ...     

图形分布处理支撑环境DGPSE

本文详细介绍图形分布处理支撑环境ＤＧＰＳＥ的设计和实现技术．ＤＧＰＳＥ有效支持高性能分布式图形应用系统的开发和分布并行图形处理算法的研究．它具有以下特点：支持多种分布处理模型，通讯方式灵活，图形支撑功能强．使用ＤＧＰＳＥ已实现了一分布式图形应用系统和一组分布式图形算法．的设计和实现．南京大学计算机系硕士论文，１９９１．１３潘志庆，石教英．Ｆｒａｃｔａｌ生成的并行算法研究．全国第７届ＣＡＤ和图形学会议论文集，无锡，１９９２．１４石教英，劳志强，潘志庚．多面体扫描转换的分布并行算法．全国第７届ＣＡＤ和图形学会议论文集，无锡，１９９２．     

DGLa: A Distributed Graphics Language

A distributed graphics programming language called DGLa is presented,which facilitates the development of distributed graphics application.Facilities for distributed programming and graphics support are included in it,It not only supports synchronous and asynchronous communication but also provides programmer with multiple control mechanism for process communication.The graphics support of DGLa is powerful,for both sequential graphics library and parallel graphics library are provided.The design consideration and implementation experience are discussed in detail in this paper.Application examples are also given.     

A distributed graphics library system

We present a set of library routines that allow easily parallelized graphics rendering routines that require no communication between each parallel task, such as ray-tracing, to be run efficiently in an environment of distributed workstations. The presentation of the paper focuses on the problems encountered in implementing a distributed system under Unix and proposes solutions to each problem. Specifically, we discuss the challenges involved in overcoming the limits of communicating with a large number of processes in Unix and in providing fault tolerance when using sockets. Technical aspects of the implementation and some additional problems that were encountered are discussed. Finally, we compare the rendering times for a complex image with a renderer using the library and show that the library routines are able to exploit much of the existing parallelism. The library is presented using a graphics application, though the concepts are generic enough to be of use in designing any distributed system under Unix.     

微机环境下基于PVM的网络并行程序开发方法

并行虚拟机ＰＶＭ是一种通用的网络并行程序开发环境,它可以把连网的巨型机,大规模并行机,工作站以及微机作为一大型并行机使用,供人们开发并行算法或运行并行系统。此文对ＰＶＭ的基本情况和最新进展进行介绍,讨论了基于ＰＶＭ的网络并行程序开发方法,最后给出了具体的实例。     

DPGL： The Direct3D9-based Parallel Graphics Library for Multi-display Environment

The emergence of high performance 3D graphics cards has opened the way to PC clusters for high performance multi- display environment.In order to exploit the rendering ability of PC clusters,we should design appropriate parallel rendering algorithms and parallel graphics library interfaces.Due to the rapid development of Direct3D,we bring forward DPGL,the Direct3D9-based parallel graphics library in D3DPR parallel rendering system,which implements Direct3D9 interfaces to support existing Direct3D9 application parallelization with no modification.Based on the parallelism analysis of Direct3D9 rendering pipeline,we briefly introduce D3DPR parallel rendering system.DPGL is the fundamental component of D3DPR.After presenting DPGL three layers architecture, we discuss the rendering resource interception and management.Finally,we describe the design and implementation of DPGL in detail, including rendering command interception layer,rendering command interpretation layer and rendering resource parallelization layer.     

三维空间曲面消隐的并行算法

并行与分布式图形处理已成为超级计算环境下科学可视化的基础。本文描述我们在银河巨型机上针对一类三维空间曲面设计的并行消隐算法。     

Practical CFD Simulations on Programmable Graphics Hardware using SMAC†

The explosive growth in integration technology and the parallel nature of rasterization‐based graphics APIs (Application Programming Interface) changed the panorama of consumer‐level graphics: today, GPUs (Graphics Processing Units) are cheap, fast and ubiquitous. We show how to harness the computational power of GPUs and solve the incompressible Navier‐Stokes fluid equations significantly faster (more than one order of magnitude in average) than on CPU solvers of comparable cost. While past approaches typically used Stam's implicit solver, we use a variation of SMAC (Simplified Marker and Cell). SMAC is widely used in engineering applications, where experimental reproducibility is essential. Thus, we show that the GPU is a viable and affordable processor for scientific applications. Our solver works with general rectangular domains (possibly with obstacles), implements a variety of boundary conditions and incorporates energy transport through the traditional Boussinesq approximation. Finally, we discuss the implications of our solver in light of future GPU features, and possible extensions such as three‐dimensional domains and free‐boundary problems.     

Scientific computation for simulations on programmable graphics hardware

Graphics processor units (GPUs) have emerged as powerful parallel processors in recent years. Although floating point computations and high level programming languages are now available, the efficient use of the enormous computing power of GPUs still requires a significant amount of graphics specific knowledge.The paper explains how to use GPUs for scientific computations without graphics specific terminology. It offers an algorithmic view on GPUs with comparisons to cache aware and parallel programming of CPUs. Two typical simulation techniques, namely grid based and particle based methods are discussed.     

基于智能手机的工程图学虚拟模型库的研究与实现

针对基于PC 的工程图学虚拟模型库在使用空间和时间的限制,论文对用 于工程图学移动虚拟模型库进行了研究。设计了模型库系统结构,分析研究了智能手机的操 作系统,选择了虚拟模型库的开发及运行平台。通过分析Direct3D Mobile 中Mesh 类的图元 绘制方式、数据需求和VRML97 的数据格式,设计了VRML 的文件解析类,实现了移动设 备上的VRML 模型的3D 浏览器,实现了基于智能手机的工程图学虚拟模型库的设计。该 系统提高了虚拟模型库的实用性,成功地拓展了虚拟模型库的使用空间和时间。