当前位置 —论文—写论文— 范文

论文类有关论文例文,与写文河北,写文成人相关论文查重软件

本论文是一篇论文类有关论文查重软件,关于写文河北,写文成人相关在职毕业论文范文。免费优秀的关于论文及参考文献及范例方面论文范文资料,适合论文论文写作的大学硕士及本科毕业论文开题报告范文和学术职称论文参考文献下载。

tiongraphwiththemaximumdegree(等于4.

Figure6.Aredistributiongraphwith(等于4.

Weneedfourmunicationstepsforthisdataredistributionsince(((G)等于((G)等于4.Inaddition,theoverallcostofthecorrespondingschedulingis38(SeeTable1).

Table1.TheschedulingcorrespondstotheedgecoloringinFigure4.

Step1(red)2(yellow)3(green)4(purple)TotalCost18631138

NotethatthetimecostofStep1(coloredinred)isdominatedbythedatasegment(with18dataelements)fromP0toQ0.Supposethatweevenlypartitionthesegmentintotwodatasegments(with9and9dataelementsrespectively)andtransmitthemindifferentsteps,thenthetimerequiredforStep1isreducedto10(dominatedbythedatasegmentfromP3toQ3).Notethatthedatapartitionaddsanedge(P0,Q0)intheoriginalredistributiongraph.Similarly,wecanpartitionanylargedatasegmentintomultiplesmalldatasegmentifthemaximumdegreeoftheresultingredistributiongraphremainsunchanging.Afterseveraldatapartitions,theoverallmunicationcostcanbereducedto29andthenumberofrequiredmunicationstepisstillminimized(seeFigure7andTable2).

Figure7.Theresultingredistributiongraphafterpartitioninglongdatasegments.

Table2.Theschedulingafterpartitionlongdatamunications.

Step1(red)2(yellow)3(green)4(purple)TotalCost995629

较正式的成果说明.

【范例】

Thealgorithmoftheselectionstepisshownasfollows.

AlgorithmSelection()

Input:AredistributiongraphG等于(S,T,E)withmaximumdegree.

Output:AredistributiongraphG等于(S,T,E(D)withmaximumdegree,whereDrepresentsthosedummyedgesaddedinthealgorithm.

Step1.Selecttheedgeek等于(si,tj)fromEsuchthatthevaluewk/(1+vk)isthelargestanddG(si)<,anddG(tj)<,,wherevkdenotesthenumberofaddeddummyedgewiththesameendpointsofek.Ifnosuchedgeexists,terminatethisalgorithm.

Step2.Addadummyedgeek'等于(si,tj)toDandsetvk等于vk+1.

Step3.GotoStep1.

ThetimeplexityofSelectionisO(mlogm),wheremisthesizeofedgesetoftheinputredistributiongraph.

4.4Complexity

5.理论上的证明(simulationresults).实验结果GEN_BLOCKdistribution.GivenanirregulararrayredistributiononA[1:N]overPprocessors,theaveragesizeofdatablocksisN/P.LetTb(Ta)denotethetotalredistributioncostwithout(with)applyingouralgorithm.ThereductionratioRequals(Tb-Ta)/Tb.Moreover,let{E1,E2,E3,等,E(}ofGdenotetheoutputofSchedulingstep.WealsodefineCi等于.Asaresult,theoverallredistributiontimeisboundedbyB等于sincetheproposedalgorithmdoesnotselectmaximum-degreeedgesforfurtherpartition.Otherwise,therequiredmunicationstepwillbeincreased.

Tothoroughlyevaluatehowouralgorithmaffectsthedatatransfercost,oursimulationsconsiderdifferentscenarios.Eachdatapointinthefollowingfiguresrepresentsanaverageofatleast10000runsineachdifferentscenario.

Thefirstscenarioassumesthatthesizeofdataarrayisfixed,i.e.,N等于100,thenumberofprocessorsrangefrom4,8,16,32,64,to128,thesizeofdatablocksisrandomlyselectedbetween1and50.InFigure12,thevalueofTbdrasticallyraisesasthenumberofprocessorsincreases.However,afterapplyingouralgorithm,theoveralldistributiontimeTasmoothlyraisesasthenumberofprocessorsincreases.NotethattheBvaluedropsasthenumberofprocessorincreaseduetothedecreaseoftheaveragevaluesofdataelementsinasinglemunication.Inshort,whenthenumberofprocessorsincreases,thereductionratioRraisesifapplyingourpartitionalgorithm.

Figure12.SimulationresultsofScenarioI.

Thesecondscenarioassumesthatthenumberofprocessorsisfixed,i.e.,P等于32,thesizeofdataarrayNequals1600,3200,6400,9600,or12800,andthesizeofdatablocksisrandomlyselectedbetween1and2((N/P).AsshowninFigure13,thevaluesofTa,Tb,andBraisesasthesizeofdataarrayNincreasesduetotheincreaseoftheaveragenumberofdataelementsinasinglemunication.However,thereductionratiostaysabout52%byapplyingourpartitionalgorithm,evenwiththelargesizeofdataarray.

Figure13.SimulationresultsofScenarioII.

结论

简单摘要整篇论文的贡献及使用的技巧

此研究对该领域有何启发

贡献有何处可扩展

WereyourresultsexpectedIfnot,whynot

Whatgeneralizationsorclaimsareyoumakingaboutyourresults

Doyourresultscontradictorsupportotherexperimentalresults

Dotheysuggestotherobservationsorexperimentswhichcouldbedonetoconfirm,refute,orextendyourresults

Doyourresultssupportorcontradictexistingtheory

DoyourresultssuggestthatmodificationsorextensionsneedtobemadetoexistingtheoryWhatarethey

Couldyourresultsleadtoanypracticalapplications

Stresshowtheresultsinthisstudyconfirmyourengineering/Scientificmotivations(specificandgeneral)and,ultimately,yourreader'sinterests(i.e.Engineering/Scientificneed).

【范例】

Wehavepresentedaneffici

论文类有关论文例文entalgorithmtoreducetheoverallredistributiontimebyapplyingdatapartition.Simulationresultsindicatesthatwhenthenumberofprocessorsorthemaximumdegreeoftheredistributiongraphincreasesortheselectedsizeofdatablocksisappropriate,ouralgorithmeffectivelyreducetheoverallredistributiontime.Infuture,wetrytoestimatethereductionratioprecisely.Wealsobelievethatthetechniquesdevelopedinthestudycanbeappliedtoresolveotherschedulingproblemsindistributionsystems.

参考文献(References)

【范例】

References:

G.BanderaandE.L.

论文类有关论文例文,与写文河北,写文成人相关论文查重软件参考文献资料：