網(wǎng)格資源管理的研究與發(fā)現(xiàn)

摘 要:提出一種采用分布式動(dòng)態(tài)層次結(jié)構(gòu)的資源管理模型方法。依據(jù)資源之間的網(wǎng)絡(luò)通信性能使資源組織成帶層次的樹(shù)型組織結(jié)構(gòu)，根據(jù)網(wǎng)格資源類別在邏輯上劃分多個(gè)社區(qū)，使得資源的組織方式能夠反映實(shí)際的網(wǎng)絡(luò)拓?fù)洌瑸橛?jì)算任務(wù)在資源上的合理分配提供了依據(jù)，避免了資源選擇的盲目性。在該資源管理模型中的資源發(fā)現(xiàn)與定位，采用資源樹(shù)查找算法，多種請(qǐng)求定位策略，可以快速地找到目標(biāo)結(jié)點(diǎn)，提高相應(yīng)查找時(shí)間。資源定位的效率仿真表明這種方法可以提高查找速度和性能。關(guān)鍵詞:網(wǎng)格技術(shù); 資源管理; 動(dòng)態(tài)層次; 資源定位

中圖分類號(hào):TN915-34文獻(xiàn)標(biāo)識(shí)碼:A

文章編號(hào):1004-373X(2010)16-0029-03

Grid Resource Management and Finding

LIU Lei

(School of City Construction， Jilin Architecture and Civil Engineering Institute， Changchun 130111， China)

Abstract: A resource management model with distributed dynamic hierarchical structure is proposed. The resources are organized into a tree structure with the hierarchy based on the performance of network communication between the resources. Multi-communitiesare logically divided according to the type of grid resources to make the organization mode of the resources to reflect the actual network topology to provide the basis for the resources′rational allocation of computing tasks， which avoids the blindness of resource selection. In this way， the local strategies of the resources can be respect and the best scheduling can be carried out in the global sense. The lookup algorithm of the resource tree is adopted for the resource discovery and location in the resource management model. The positioning strategies of a number of requests can quickly find the target node， and save the search time. The simulation results show that the method can improve the search speed and performance.Keywords: grid technology; resource management; dynamic hierarchical structure; resource location

0 引 言

網(wǎng)格計(jì)算被譽(yù)為繼Internet和Web之后的“第三個(gè)信息技術(shù)浪潮”，有望提供下一代分布式應(yīng)用和服務(wù)，對(duì)研究和信息系統(tǒng)發(fā)展有著深遠(yuǎn)的影響。要實(shí)現(xiàn)高性能計(jì)算和共享異構(gòu)網(wǎng)格資源，必須提供高效的資源管理機(jī)制，建立統(tǒng)一和高效的資源管理模型，負(fù)責(zé)用戶與網(wǎng)格計(jì)算環(huán)境的交互，提高網(wǎng)格計(jì)算系統(tǒng)資源的查找速度。本文采用分布式動(dòng)態(tài)層次結(jié)構(gòu)的資源管理模型，采用分類社區(qū)的方法使得便于管理，更快捷的查詢，提高查詢效率。與傳統(tǒng)的網(wǎng)格資源管理模型相比，它可以有效地對(duì)資源進(jìn)行管理，能夠在分布式環(huán)境中資源共享，大大提高協(xié)同工作的工作效率。采用了一種類似于搜索引擎機(jī)制的資源目錄樹(shù)形式組織資源，使用基于數(shù)據(jù)庫(kù)查詢的方法來(lái)查找資源目錄樹(shù)的邏輯資源信息。……