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Legion targets workstation clusters and larger wide area assem blies of workstations, supercomputers, and parallel super computers. The authors have built a working Legion pro totype called the Campus-Wide Virtual Computer (CWVC). The CWVC extends an existing object-oriented parallel processing system by aggressively incorporating lessons learned in the last 20 years of heterogeneous distributed computing. In this paper, the authors describe the challenges that they overcame to realize a working CWVC and characterize the performance of a production biochemistry application.<\/jats:p>","DOI":"10.1177\/109434209701100206","type":"journal-article","created":{"date-parts":[[2007,3,4]],"date-time":"2007-03-04T20:17:47Z","timestamp":1173039467000},"page":"129-143","source":"Crossref","is-referenced-by-count":14,"title":["Campus-Wide Computing : Early Results Using Legion At the University of Virginia"],"prefix":"10.1177","volume":"11","author":[{"given":"Andrew S.","family":"Grimshaw","sequence":"first","affiliation":[{"name":"DEPARTMENT OF COMPUTER SCIENCE UNIVERSITY OF VIRGINIA\rCHARLOTTESVILLE, VA 22901"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anh","family":"Nguyen-Tuong","sequence":"additional","affiliation":[{"name":"DEPARTMENT OF COMPUTER SCIENCE UNIVERSITY OF VIRGINIA\rCHARLOTTESVILLE, VA 22901"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael J.","family":"Lewis","sequence":"additional","affiliation":[{"name":"DEPARTMENT OF COMPUTER SCIENCE UNIVERSITY OF VIRGINIA\rCHARLOTTESVILLE, VA 22901"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mark","family":"Hyett","sequence":"additional","affiliation":[{"name":"DEPARTMENT OF COMPUTER SCIENCE UNIVERSITY OF VIRGINIA\rCHARLOTTESVILLE, VA 22901"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1997,6,1]]},"reference":[{"key":"atypb1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-2836(05)80360-2"},{"key":"atypb2","volume-title":"CORBA: A guide to the Common Object Request Broker Architecture","author":"Ben-Naten, R.","year":"1995"},{"key":"atypb3","doi-asserted-by":"publisher","DOI":"10.1145\/63334.63337"},{"key":"atypb4","first-page":"237","volume":"7","author":"Deshpande, A.S.","year":"1991","journal-title":"CABIOS"},{"key":"atypb5","volume-title":"The NAS parallel benchmark kernels in MPL","author":"Ferrari, A.J.","year":"1995"},{"key":"atypb6","volume-title":"DSQ, a distributed queueing system","author":"Green, T.P.","year":"1993"},{"key":"atypb7","doi-asserted-by":"publisher","DOI":"10.1016\/0020-0255(96)00059-X"},{"key":"atypb8","doi-asserted-by":"publisher","DOI":"10.1145\/227695.227696"},{"key":"atypb9","doi-asserted-by":"publisher","DOI":"10.1109\/HPDC.1996.546177"},{"key":"atypb10","volume-title":"Legion: The next logical step toward a nationwide virtual computer","author":"Grimshaw, A.S.","year":"1994"},{"key":"atypb11","volume-title":"Using MPI: Portable Parallel Programming with the Message Passing Interface","author":"Gropp, W.","year":"1994"},{"key":"atypb12","volume-title":"IBM LoadLeveler: User's guide","author":"International Business Machines Corporation.","year":"1993"},{"key":"atypb13","volume-title":"A comparison of queueing, cluster, and distributed computing systems","author":"Kaplan, J.A.","year":"1993"},{"key":"atypb14","volume-title":"The network queueing system","author":"Kingsbury, B.A.","year":"1993"},{"key":"atypb15","doi-asserted-by":"publisher","DOI":"10.1109\/EDS.1990.138057"},{"key":"atypb16","volume-title":"OSF DCE guide to developing distributed applications","author":"Lockhart, H.W., Jr.","year":"1994"},{"key":"atypb17","volume-title":"Exploiting sequential debuggers in a parallel processing environment: An introduction to the Mentat assistant debugger","author":"Nguyen-Tuong, A.","year":"1995"},{"key":"atypb18","doi-asserted-by":"publisher","DOI":"10.1109\/RELDIS.1996.559687"},{"key":"atypb19","doi-asserted-by":"publisher","DOI":"10.1016\/0022-2836(81)90087-5"},{"key":"atypb20","doi-asserted-by":"publisher","DOI":"10.1002\/cpe.4330020404"},{"key":"atypb21","doi-asserted-by":"publisher","DOI":"10.7551\/mitpress\/5241.001.0001"}],"container-title":["The International Journal of Supercomputer Applications and High Performance Computing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/109434209701100206","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/109434209701100206","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T08:17:27Z","timestamp":1777450647000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/109434209701100206"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1997,6]]},"references-count":21,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1997,6]]}},"alternative-id":["10.1177\/109434209701100206"],"URL":"https:\/\/doi.org\/10.1177\/109434209701100206","relation":{},"ISSN":["1078-3482"],"issn-type":[{"value":"1078-3482","type":"print"}],"subject":[],"published":{"date-parts":[[1997,6]]}}}