Author: Les Fernandez
Date: 09:18:02 08/30/01
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On August 30, 2001 at 12:15:53, Les Fernandez wrote: >I came across this summary but since I dont have an account can not review the >paper associated with it. If anyone has access to it perhaps they could >summarize it for those people on ccc that would be interested in knowing more >about it. I did a search on parasitic computing but came up short but figured >members out here would be interested in reading about this subject. > >Enjoy, > >Les > >Parasitic computing >A-L BARABÁSI, V W FREEH, H JEONG & J B BROCKMAN > >http://www.nature.com/nlink/v412/n6850/abs/412894a0_fs.html Parasitic computing ALBERT-LÁSZLÓ BARABÁSI*, VINCENT W. FREEH†, HAWOONG JEONG* & JAY B. BROCKMAN† * Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA † Department of Computer Science and Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA Correspondence and requests for materials should be addressed to A.-L.B. (e-mail: alb@nd.edu). Reliable communication on the Internet is guaranteed by a standard set of protocols, used by all computers. Here we show that these protocols can be exploited to compute with the communication infrastructure, transforming the Internet into a distributed computer in which servers unwittingly perform computation on behalf of a remote node. In this model, which we call 'parasitic computing', one machine forces target computers to solve a piece of a complex computational problem merely by engaging them in standard communication. Consequently, the target computers are unaware that they have performed computation for the benefit of a commanding node. As experimental evidence of the principle of parasitic computing, we harness the power of several web servers across the globe, which—unknown to them—work together to solve an NP complete problem. -------------------------------------------------------------------------------- Nature © Macmillan Publishers Ltd 2001 Registered No. 785998 England.
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