A Randomized parallel sorting algorithm with an experimental study

A Randomized parallel sorting algorithm with an experimental study

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Unformatted text preview: AR andom izedP ara lle lSort ingA lgor ithm W ithanExper im en ta lS tudy D av idR .H e lm an D av idA .B ader JosephJaJa y In st itu teforA dvancedC om pu terS tud ies& D epartm en to fE lectr ica lEng ineer ing , U n ivers ityo fM ary land ,C o llegeP ark ,MD f he lm an ,dbader ,joseph g @ um iacs .um d .edu A ugu st, A b stract P rev iou sschem esforsort ingongenera l-pu rposepara lle lm ach ineshavehadtochoosebetw een poorloadba lanc ingand irregu larcomm un icat ionorm u lt ip leround so fa ll-to-a llpersona lizedcom- m un icat ion .Inth ispaper ,w ein troduceanove lvar iat iononsam p lesortw h ichu seson lytw oround s o fregu lara ll-to-a llpersona lizedcomm un icat ion inaschem ethaty ie ld sverygood loadba lanc ing w ithv irtua llynooverhead .M oreover ,un likep rev iou svar iat ion s ,ou ra lgor ithm ec ient lyhand lesthe p resenceo fdup licateva luesw ithou ttheoverheado ftagg ingeache lem en tw ithaun iqueiden t ier . T h isa lgor ithmw asim p lem en ted in Spl it-C andrunonavar ietyo fp latform s ,inc lud ingtheT h ink ing M ach inesCM-,theIBM SP-,andtheC rayR esearchTD .W eranou rcodeu s ingw ide lyd ierent benchm ark stoexam inethedependenceo fou ra lgor ithm ontheinpu td istr ibu t ion .O u rexper im en ta l resu ltsillu stratetheec iencyandsca lab ilityo fou ra lgor ithm acrossd ierentp latform s .In fact ,it seem stoou tperform a lls im ilara lgor ithm sknow ntotheau thorsonthesep latform s ,and itsperfor- m anceisinvar ian tovertheseto finpu td istr ibu t ion sun likep rev iou sec ienta lgor ithm s .O u rresu lts a lsocom parefavorab lyw iththosereported forthes im p lerrank ingp rob lem posedbytheNA SIn teger Sort ing(IS )B enchm ark . K eyw ord s : P ara lle lA lgor ithm s ,G enera lizedSort ing ,In tegerSort ing ,Sam p leSort ,P ara lle lP er- form ance . ThesupportbyNA SAG raduateS tuden tR esearcherF e llow sh ipN o .NGT- isgrate fu llyacknow ledged . y Supported inpartbyN SFgran tN o .CCR- andN SFHPCC /GCAG gran tN o .B IR- . In troduct ion Sort ing isarguab lythem oststud iedp rob lem incom pu tersc ience ,bothbecau seo fitsin tr in s ictheo- ret ica lim portanceand itsu seinsom anyapp licat ion s .Itss ign icantrequ irem en tsforin terp rocessor comm un icat ionbandw id thandtheirregu larcomm un icat ionpattern sthataretyp ica llygenerated haveearned itsinc lu s ion insevera lpara lle lbenchm ark ssuchasNA S andSPLA SH [ ].M oreover , itsp ract ica lim portancehasm ot ivatedthepub licat iono fanum bero fem p ir ica lstud iesseek ingto iden t ifythem ostec ientsort ingrou t ines .Y et ,para lle lsort ingstrateg ieshavest illgenera llyfa llen in tooneo ftw ogroup s ,eachw ith itsrespect ived isadvan tages .T herstgroup ,u s ingthec lass icat ion o fL iandSevc ik [ ],isthes ing le-stepa lgor ithm s ,sonam edbecau sedata ism ovedexact lyonce betw eenp rocessors .Exam p leso fth isinc ludesam p lesort[ ,],para lle lsort ingbyregu larsam p ling [ , ],andpara lle lsort ingbyoverpart it ion ing [ ].T hep r icepa idbytheses ing...
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A Randomized parallel sorting algorithm with an experimental study

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