UNIVERSITY OF CALIFORNIA Santa Barbara Ant Colony Metaheuristics for Fundamental ...

200 Pages·2007·0.91 MB·English

UNIVERSITY OF CALIFORNIA
Santa Barbara

Ant Colony Metaheuristics for Fundamental Architectural Design Problems

A Dissertation submitted in partial satisfaction of the
requirements for the degree Doctor of Philosophy
in Electrical and Computer Engineering

by

Gang Wang

Committee in charge:
Professor Ryan Kastner, Chair
Professor Malgorzata Marek-Sadowska
Professor Steve Butner
Professor Elaheh Bozorgzadeh
Professor Timothy Sherwood

September 2007
ThedissertationofGang Wangis approved:
Chair Date
Date
Date
Date
Date
UniversityofCalifornia, SantaBarbara
September2007
AntColonyMetaheuristicsforFundamentalArchitectural DesignProblems
Copyright2007
by
GangWang
iii
To my wife Fang Liu,
my children James, Justin, Jocelyn,
and my parents Tihao Wang and Shuchun Li.
iv
Abstract
AntColonyMetaheuristicsforFundamentalArchitectural DesignProblems
by
GangWang
DoctorofPhilosophyinElectrical and ComputerEngineering
UniversityofCalifornia, SantaBarbara
ProfessorRyan Kastner,Chair
As thefabrication technologyadvances, thenumberoftransistorsin modern computer
systems keeps growing exponentially. This growth creates tremendous potential while
imposingbigchallengestotheelectronicdesignautomationcommunityonhowtocon-
structsuchcomplicatedsystems. Inordertoeffectivelyutilizethecomputingresources,
a number of fundamental problems need to be addressed. As the scale and complexity
oftheseproblemsgrow,wemustlooktowardsnewoptimizationsmethods,ratherthan
simplyperform iterativeimprovementson existingtechniques.
In this dissertation, I will report our research work on constructing new heuristic
algorithms using the Ant Colony metaheuristicfor effectively and efficiently solving a
range of difficult architectural design problems. We investigate three NP-hard prob-
lemsinthiscontext,namelysystempartitioning,operationschedulinganddesignspace
exploration. Results showthat Ant Colony metaheuristicis a very promisingapproach
for solving these problems, and the algorithms we propose generally achieve better
quality solutions with much improved stability compared to conventional methods.
v
Moreover,byestablishingthetheoreticallinkbetweentimingandresourceconstrained
scheduling, we propose an effective design exploration framework that leverages du-
ality between the scheduling problems. To our best knowledge, our work is the first
extensive study on applying the Ant Colony metaheuristics to the architectural design
field.
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Acknowledgments
I would like to show my sincerest gratitude to my advisor Professor Ryan Kastner for
giving me copious amounts of insightful guidance, constant encouragement, construc-
tivecriticism, and expertise on every subject that arose throughout all these years. His
enthusiasm and dedication to his students are truly inspiring; it is my very privilege
to have been one of them. I would also like to thank Professor Malgorzata Marek-
Sadowska,ProfessorElahehBozorgzadeh,ProfessorStevenButner,andProfessorTim
Sherwood forbeingon myPh.D. committeeand forall theirhelpsalong theway.
I am very thankful for the many friends and fellow students I have had at UCSB,
includingAnupHosangadi,Yen Meng, Brian DeRenzi, fortheirmanystimulatingdis-
cussionsandwarmfriendship. Particularly,IwanttothankWenruiGong,whoIcollab-
orated with on numerous research efforts and became close friend with over the years.
Withoutthem, myexperienceat UCSB won’tbeas rewardingas it is.
Finally, I want to thank my wife, Fang Liu, for her love, support, encouragement,
sense of humor, and for being an intelligent partner on my research journey as well. I
could not have accomplished this without her. Very special thanks to my parents for
theirselflessloveandsupport,and tomy lovelychildrenJames,JustinandJocelyn.
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Curriculum Vitæ
GangWangwasborninShaanxi,Chinain1971. HereceivedtheBachelorofElectrical
Engineering degree from Xian Jiaotong University in 1992, and Master of Computer
SciencedegreefromChineseAcademyofSciencesin1995,bothinChina. From1995
to 1997, he conducted research work at Michigan State University (East Lansing, MI,
US),andCarnegieMellonUniversity(Pittsburgh,PA,US),focusingonspeechandim-
ageunderstanding. Since1997,Mr. Wangheldpositionsassoftwarearchitectandtech-
nical manager in different leading companies ofmedical industry,includingComputer
Motion,IntuitiveSurgicalandKarlStorzEndoscope. Hisworkfocusedontheresearch
and development of complex surgical robotics systems, multi-modal human-computer
interaction and intelligent operating room. His current research interests include re-
configurableandembeddedcomputing,optimizationalgorithmsandtheirapplications,
novelarchitecturaldesignforFPGAandnanocomputingplatforms,ubiquitouscomput-
inganditsapplicationsinmedical/healthcaresystems. Hehasauthored orco-authored
morethan20 technicalpapers in differentjournalsand conferences on related topics.
RelatedPublications:
BOOKS/BOOK CHAPTERS
[B1] Gang Wang, Wenrui Gong, and Ryan Kastner. Operation Scheduling: Al-
gorithms and Design Space Exploration, to appear in High Level Synthesis
Handbook: The StateofArtspublishedbySpringer.
JOURNAL ARTICLES
viii
[J1] Gang Wang, Wenrui Gong, Brian DeRenzi, and Ryan Kastner. Exploring
Time/Resource Tradeoffs by Solving Dual Scheduling Problems with the Ant
Colony Optimization, accepted by ACM Transactionson Design Automation
ofElectronicSystems(TODAES).
[J2] Gang Wang,Wenrui Gong, Brian DeRenzi, and Ryan Kastner. Ant Schedul-
ing Algorithms for Resource and Timing Constrained Operation Scheduling,
IEEETransactionsofComputer-AidedDesignofIntegratedCircuitsandSys-
tems(TCAD), Vol26,Issue6, pp1010-1029,2006.
[J3] GangWang,SatishSivaswamy,CristinelAbabei,KiaBazargan, Ryan Kast-
ner and Eli Bozorgzadeh. Statistical Analysis and Design of HARP Routing
PatternFPGAs,IEEE Transactionson Computer-AidedDesignofIntegrated
CircuitsandSystems(TCAD),Vol25,Issue10,pp2088-2102,October2006.
[J4] Gang Wang, Wenrui Gong and Ryan Kastner, Application Partitioning on
ProgrammablePlatformsUsingtheAntColonyOptimization,JournalofEm-
beddedComputing(JEC), Vol 2,Issue1, pp119-136,2006.
PEER-REVIEWED CONFERENCE/WORKSHOP PAPERS
[C1] Ted Huffmire, Brett Brotherton, Gang Wang, Ryan Kastner, and Tim Sher-
wood. Moats and Drawbridges: An Isolation Primitive for Reconfigurable
HardwareBased Systems,IEEE SymposiumonSecurityand Privacy,2007.
[C2] Gang Wang, Wenrui Gong, and Ryan Kastner, On the Use of Bloom Fil-
ters for Defect Maps in Nanocomputing, In International Conference on
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Computer-AidedDesign (ICCAD), 2006.
[C3] GangWang,WenruiGong,BrianDeRenziandRyanKastner,DesignSpace
ExplorationusingTimeandResourceDualitywiththeAntColonyOptimiza-
tion,In 43rd DesignAutomationConference(DAC), 2006.
[C4] Gang Wang, Wenrui Gong, and Ryan Kastner, Defect-Tolerant Nanocom-
puting Using Bloom Filters for Defect Mapping, In IEEE Symposium on
Field-Programmable Custom Computing Machines (FCCM), pp 277-278,
2006.
[C5] Wenrui Gong, Gang Wang and Ryan Kastner. Storage Assignment During
High-levelSynthesisforConfigurableAchitectures,InInternationalConfer-
ence onComputer AidedDesign(ICCAD), 2005.
[C6] Gang Wang, Wenrui Gong and Ryan Kastner, Instruction Scheduling us-
ing MAX-MIN Ant Optimization, In ACM Great Lakes Symposium on VLSI
(GLSVLSI), 2005.
[C7] SatishSivaswamy,GangWang,CristinelAbabei,KiaBazargan,RyanKast-
ner, Eli Bozorgzadeh. HARP: hard-wired routing pattern FPGAs, In Pro-
ceedings of the ACM/SIGDA 13th International Symposium on Field Pro-
grammableGateArrays(FPGA), 2005.
[C8] Wenrui Gong, Yan Meng, Gang Wang, Ryan Kastner, and Timothy Sher-
wood, Data Partitioning for Reconfigurable Architectures with Distributed
Block RAM, In International Conference on Engineering of Reconfigurable
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