[Acpc-l] AURORA: Vortrag: Fr., 04.10.02 - 14:00 h s.t. - Dr. Randy Moe (Univ. of Bergen)

[AURORA Project]

	EINLADUNG ZU EINEM VORTRAG IM RAHMEN DES AURORA-KOLLOQUIUMS



 	   UNIVERSITAET WIEN INSTITUT FUER SOFTWAREWISSENSCHAFT
			      gemeinsam mit
	    FWF-Projekt Spezialforschungsbereich F011 "AURORA"


       EINLADUNG ZU EINEM VORTRAG IM RAHMEN DES AURORA-KOLLOQUIUMS

	      ZEIT:  Freitag, 4.Oktober 2002, 14 Uhr s.t.
	      ORT:   Institut fuer Softwarewissenschaft,
		     1090 Wien, Liechtensteinstrasse 22, 
	                     Seminarraum, Mezzanin
	                      
	                      
	                    Dr. Randy Moe 
			 University of Bergen
		      Department of Informatics                                       
		                Norway
                         
                 
                 GRIBB - an infrastructure for Internet computing

  Abstract:


  With the introduction of the URL and HTML standards for defining
  unique document addresses and links between them, the ground was 
  prepared for wide-spread use of the Internet.
  
  When the appropriate software, the web-browser, came along,
  the use of Internet as an information channel exploded.

  Internet based computing seeks to exploit otherwise idle workstations and
  PCs to create powerful distributed computing systems with global reach and
  supercomputing facilities. Different systems have been introduced to harness   	
  idle cycles on computers for useful work both on local networks as well as   		
  globally through the Internet.

  The GRIBB project is based on an ongoing project called GRISK which was   		
  started for solving a particular problem, that of finding K-optimal lattice 		
  rules for numerical integration using an Internet based search. Hundreds
  of computers from more than 20 different countries have been used
  and more than 100 CPU-years have been consumed to produce new scientific
  results which would have been beyond reach without Internet based computing.
  The software written to accomplish this is very compact and efficient
  making use of tools like JAVA and RMI (Remote Method Invocation).

  In the GRIBB project we build on these experiences, applying the same basic   	
  philosophy and core technology to a wider range of problems - namely   		
  branch-and-bound methods.
  
  Compared to  similar projects GRIBB has several advantages like robustness, a  
  very simple structure, and very little overhead. The GRIBB software is not
  dependent on any other software components than JAVA and the problem solving    	
  code.
  
  The Quadratic Assignment Problem has been chosen as the first major test
  application due to its high computation complexity, and preliminary results 	 
  from test runs will be presented.