W. Cockshott, Andreas Koltes, J. O'Donnell, P. Prosser, W. Vanderbauwhede
{"title":"A Hardware Relaxation Paradigm for Solving NP-Hard Problems","authors":"W. Cockshott, Andreas Koltes, J. O'Donnell, P. Prosser, W. Vanderbauwhede","doi":"10.14236/EWIC/VOCS2008.8","DOIUrl":null,"url":null,"abstract":"Digital circuits with feedback loops can solve some instances of NP-hard problems by relaxation: the circuit will either oscillate or settle down to a stable state that represents a solution to the problem instance. This approach differs from using hardware accelerators to speed up the execution of deterministic algorithms, as it exploits stabilisation properties of circuits with feedback, and it allows a variety of hardware techniques that do not have counterparts in software. A feedback circuit that solves many instances of Boolean satisfiability problems is described, with experimental results from a preliminary simulation using a hardware accelerator.","PeriodicalId":247606,"journal":{"name":"BCS International Academic Conference","volume":"14 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"BCS International Academic Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.14236/EWIC/VOCS2008.8","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
Digital circuits with feedback loops can solve some instances of NP-hard problems by relaxation: the circuit will either oscillate or settle down to a stable state that represents a solution to the problem instance. This approach differs from using hardware accelerators to speed up the execution of deterministic algorithms, as it exploits stabilisation properties of circuits with feedback, and it allows a variety of hardware techniques that do not have counterparts in software. A feedback circuit that solves many instances of Boolean satisfiability problems is described, with experimental results from a preliminary simulation using a hardware accelerator.
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