It is used to manage data stored in the system intelligently . and the high reliability of the system can be achieved . dpfs also improved system ’ s ability of service 它用于智能地管理分布式并行服务器中的文件资源,保证系统的高度可靠性,并且提高了系统的服务能力,它是分布式并行系统的核心部件。
The results show that the distortion of the parallel system is inversely proportional to the square of the number of subchannels which illustrates the effectiveness of the system in combating delay distortion 结果表明并行系统的失真与子信道数目的平方成反比，从而说明了该系统具有抵抗延时失真的作用。
Several real problems are simulated , which proves the validity and feasibility of the proposed method . the method provides key technology support for the implimentation of automatic parallelization system in the next stage 算例模拟结果验证了所提出方法的正确性和可行性，并为下一阶段自动并行系统的实现提供关键技术的支持。
The cluster parallel system is such a system , which makes use of workstations , servers or pcs connected with fast network and under the support of parallel system software to realize parallel process with high efficiency 集群并行计算机系统是利用高速通信网络将一组高档工作站、服务器或pc机，按某一种结构连接起来，在并行系统软件支持下实现高效并行处理的系统。
As a kind of shortcut to parallel computing , cluster computing can supply scalable , high available system with high performance , which is considered as an effective solution for rebuilding existed high performance / availability servers and platforms 集群方式作为快捷、有效的并行化计算方式，能够提供可扩展性强、高可用性和性能高的系统，成为了并行系统的重要解决方案。
In order to solve problems of the distributed parallel system such as the node management and communication , this thesis designs the “ commtor ” module and proposes the concept of “ communication field ” to limit the communication range of distributed parallel systems 为了解决分布式并行系统的节点管理和节点间通信问题,本论文设计了通信子模块,并提出了通信域的概念来限制分布式并行系统的通信范围。
In view of these problems , we proposed the distributed parallel function library ( dplib ) . it provides many components which the distributed parallel system needs and solves the problems such as node management , communication , and data consistency 针对以上这些问题, [ 0 ]我们提出了分布式并行函数库的设想,由分布式并行函数库提供分布式并行系统所需的多种组件,以解决节点管理、通信、一致性等多方面的问题。
Based on the most popular open - source database system mysql , it not only retains the high performance of mysql itself , but also possesses most virtues of distributed and parallel systems , such as high reliability , high availability , high throughput , large storage capability , etc . this thesis mainly research the consistency mechanism of distributed and parallel database , the consistency mechanism of database system can provide user normal database service 它以当前最为流行的开放源码数据库mysql为基础,不但保持了mysql的高处理速度,而且具有分布式并行系统的高可靠性,高吞吐量、高存储容量等一系列优点。本文主要研究分布式并行数据库的一致性机制,数据库的一致性机制是保证分布式并行数据库系统能正常提供数据库服务的基础。
Chapter 4 explores the impact of the task allocation and schedule strategy on the performance of multi - processor system . compares several model methods such as petri net and queue model , then proposes a new model method named distributed finite state machine ( dfsm ) . based on this method , and with the assistant of vhdl design and simulation environment , the model of dynamic reconfigurable multi - dsp system is constructed and the simulation of fft algorithm is run under verilog xl 浙江大学博士学位论文第四章论述了基于模型分析方法的性能研究对并行处理系统设计应用的重要性，结合vvp平台动态可重构并行系统的结构特点以及sharc处理器的特性，对petri网及查询队列等系统建模方法进行比较，提出了分布式有限状态机（ dfsm ， distributedfinitestatemachine ）的建模方法，井对在动态可重构多sharc系统运行的并行任务进行了的建模仿真。
Consisted of adsp21060 - sharc parallel 32 - bit floating point dsp , distributed parallel system and shared bus parallel system will satisfy signal processing tasks in sar application fields . this paper discusses range - doppler ( rd ) algorithm and two - dimension detachable algorithm in the side - looking model in synthetic aperture radar ( sar ) respectively , then studies the realization on multi - chips adsp21060 sharc dsp system 以美国ad公司的adsp21060 - sharc (超级哈佛结构计算机)系列并行32位浮点dsp构成的分布式并行系统和共享总线式并行系统，可以满足综合孔径雷达( sar )应用领域的信号处理任务。
