信息學院實驗報告學號:姓名:班級：網絡工程實驗時間：2015年5月26日學號:姓名:班級：網絡工程實驗時間：2015年5月26日實驗地點：睿智4棟303開發環境：VMware-Ubunt14.04課程名稱：云計算實驗性質：驗證性實驗實驗內容：虛擬機環境下MPI集群搭建題目來源：教師布置a）實驗目的和任務了解建設高性能計算機集群系統的過程；熟悉利用MPICH搭建高性能計算機的方法;熟悉UbuntuLinux操作系統配置與管理。b）實驗步驟2.集群局域網網絡環境搭建與配置。a)Ubuntu中root用戶和user用戶切換及密碼設置(node1和node2)。aibc@ubunXu:—$sudo:sutsuda]pas-swQrdfordbc:roct@ubun七ui/hone/abc#exvtex-Ltabic^ubuntu: ■b)網絡搭建和ip地址配置obc@ubuntutfconftgethO Linkencapr太網硬件地址00i0ci29:df:d3if匚tnetifeilt：192,168.15,12S S5 1■Lnet6t也址：feSO::20c: f:fedf:d3fc/b4Scope:LinkUPBROADCASTRUNNINGMULTICASTMTUI1500畋點數：1接收數拒包：4錯誤沖丟棄汕過載沖幀數沖岌送數扌居包：135錯誤：0舌棄：◎過載曲載汝：0碰擢發送臥列長度Iiaaanode1接收字節(993,0B)發送字節I1S2E4(18,2KB)node1abc@uibuntu2: ifeonftg=七h? LinkLrtU0p;以衣網韋更彳牛t也址00:0c:29:2S:9f:84tnet±t!iy：：192r168*15*133 t192.108*15*255 ：255-255*255*□tnete土也址：fee?::20c：29ff:fe2&:?f84/6^1scope:LtnkUPBROAOCASTRUNNINGMULTICASTMTJ;1500族點數：1接收數扌居包：15萌稱誤：0丟棄汕過載：3幀數：3躱送數扌居包：陀4錯誤池丟棄沖過載皿載菠池碰扌雖沖發送臥列長厘阿0node2接收宇節-334907(934”9KB)發送宇節Q94,&KB)node2測試網絡的連通性nodelpingnode2tcnp_seq=ltcnp_seq=2tcnp_seq=3tempbytesof廿云七a_64ttne=9*584ms64tlme=?.443ms64ttme=G*490ms64ttme=0,S44ms192,168.15*133133:tcnp_seq=ltcnp_seq=2tcnp_seq=3tempbytesof廿云七a_64ttne=9*584ms64tlme=?.443ms64ttme=G*490ms64ttme=0,S44ms192,168.15*133133:192*168.15*133:192.168-15.133：PING33<192.168.61byxesfrom64bytesfrom64bytesfrom64bytesfrom——192*168*15.133ptngstatistics——4packetstransmtttzed*4recetved± packetloss±time3000ms「ttmln/avg/nmx/nMew=0*344/0*465/O+SS4/0+?S7msabc@ubu■修改計算機名/主機名、添加地址解析(兩個節點nodel和node2均需配置)abc@nodel:sudogedit/etc/hostname[sudo]passwordforabc:abc^rodeli~$-匚日1z/et匚丿11口5七5192.168_15.128 nodel192.168.is.133 nodez(1)node1abcgnodez:sudogedLt/etc/hostname|2^udoJpasswordforabc:abc@n&dez: cat/etc/hosts.32node2192*16-8*15*1Z8nodel(2)node2修改完成，重啟系統。步驟二創建SSH信任連接安裝SSH服務，在終端窗口輸入如下命令#sudoapt-getinstallssh升亦十V不僉茬包,新安裝了6個軟件包「要卸載由個軟件包,有S5S個軟件包未披升級。需要下載617kB的軟件包。解壓編后會消耗掉3,450kB的額外空間。徑也望維綻執行嗎？[V/n]y〒卻【新】軟件包將殺安裝：libck-connector?ncurses-ternopenssh-serveropenssh-sftp-serversshssh-inport-id升級了&個軟件包r新安裝了6個軟件包，要卸載0個軟件包,有315個軟件包未被升級。需要下載617kB的軟件包◎解壓縮后會消耗掉3,450kB的額外空間。您希望繼續執行嗎？E￥/n]yProcessingTriggersforufw(a.34-rc-0ubuntu2)正在設背ssh(1:6+6pl-2ubuntu2)…-ProcessingtriggersforItbc-bin(2,19-0uburtu6.5^abcgnodel:stdosuroot?rtodpi：/hopie/abcffshutdown-hnow來自at)c?nodel旳廣播信忌(/dev/pts/o)于21:22.…現在f系統恪關閉(haltjroot^nodel:/horne/abc#4?測試登錄本機(需要密碼)sbc^nodel1—$sshnodelThe日1_1七hen七i_匚1七”ofhost'node1 (L92*168u15*12SJ1can'tbe巳：s■七曰bt-Lshed*ecds^key■fingerprintIs5a:7a：Z9：lb：4b:80:84:&7：g8 :&b:bs：ao:^ld:0?,Areyousureyouwanttocontinueconnecting(yes/no)?yesId3『ntng:FernaiftentLyadded'nodel#192?168a15.JLNE1(ECDSA)tothelist:ofknoi^nosts.-abcQnode1'spassword1WelcometaUbun"tu14*u2LTS(GNU/Li-nijx3J.16J0-3l!)-generi.匚只合&_凸4)*Oocumenfatton:https:///Theprogramsincludedu^l_ththeUbuntusystemarefreesoft:ware:the*exactdistributiontermsforeachprogramaredescribedInt:he■LndtwtduiaTTfLesLn/us廠/mhm廠E/dlo口*$copyiri_gih七亠Ubuntucomeswithabsolutelynowarrantytotheextentpermittedbyappltcabilelawabc@nodel|5?測試從nodel登錄node2(互測：需要密碼)abc@ne>del: sshnodesTheauthenticityofhost1nodes(192.168.15■丄33)'can1tbeestablished.ECDSAkeyfingerprintis2a:匚3:d日：41zbf:f亡：OS1：F】：號匸：db: ::丄5:fl:匸b:tb:5F?A廠皂yousureyouwanttocontinueconnecting(yes/no)?yesWarning:Permanentlyadded1node2^192168 fEC；代)totheListofkno-wntQS-tS*abc^node^'spassword:WelcometoUbuntu14*?4#2LFS(GNU/Linu^3+16+0-3?-generick86_64>*■Documentattain:https://help*ubuintu亠亡on/Theprogramsi-nclLidediwiththeUbuntusystemarefreesoftware;rheexactdtstribufLontermsforeachprogramaredescribedtnthetridtvidualfilestn/usr/share/doc/*/copyright.UbuntuconeswithABSOLUTELY1NOWARRANTY^totheextentp亡廠nittedbyappltcabtelaw.abc@node2:-$■

Node2登錄nodelabc@node2$sshnodelThe*authenfLcltyofhost'nodel(192*168.15-128)'can't^stabltshcd.ECDSAkeyfingerprintis5a;7a;Z9zlb;4b;80：84;87;g8：96;9e;6bzb5;a0;4d：80*Areyousureyouwanttoconrttnjeconnecting(yes/no)?yeswarnting:Permamientl.yadded'modelj192.iL^a；?1孑?=￡呂'(ECD5A)tothe"Listofknownfiosts*abcgnodel1spassword:WelcometoUbuntu14.04B2LTS(GNU/Linux3?Idgeneri匚x86_64)*Documentailztoni::https://help,ubuntu^con/345packagescanbeupdated*191updatesaresecurityupda七召￡?Lastlogin:MonJun2921:38：532015fromnodel6?計算節點之間的無密碼訪問(nodel)abc@nodelpwd/home/abcisbcgnocie!- ssh-keygen-1rsaG&neraxtngpubLlc/prtvatersakeypair.passphras-eenp七yformoipassphrase)iEnt;亡廠filetnwhich七。save七h皀keyC/hone/abc/*ssh/td_rsaJpassphras-eenp七yformoipassphrase)iEntersanepassphraseagain:Your±dentT-fi_cati_onhasbeensavedi_n/home/abc/xS-sh/lcI_rsaYour-pubLLckeyhasbeensavedtn/home/abc^-ssh/Ldrsa,pub_Thmkeyri-ngerprtntts:Hr74:-fb:05j94:Sdre7:2dr4a:3S:7?:Sa:b2:b9:6frbfabcpnode1Thekey'srandomartImagets:*”-[RSA2048] -+Eo十- -M-abcgnodel:-5Is-al檢杳公私鑰對文件:3be?nodel:$Ts-atdrwxr-xr-x19abcabc□undirwxir-xir-xiroo七roott白合廿ApIT-irw 1日b匚aibcz47-4□'vnrrvj円廠■■「■■1abcabc220Apr-廠⑷一廠--r--1abcabcAprdrwx abcabc□undlirwx 曰t＞匸aibczApITJirwx Z2obc曰t＞匸J1vnjriftfx??----3abcdbc^0915Apr-rw-r-?ir--1abcabcZ5AprJrwx 3abcabc□undlirwx; 2iroo七r0口七Jvn-廠沖-■?----1abcabc3800JunJriftjx??----3abcabc^09*5AprJrwx 4abcabcApr-irw-ir it a三山uaibcz27^1Apir-irw-廠 r 1mb匸aibcz67SApIF1riftix??----2abcabcJun-廠訶-----■?-1abc-abc10ilznurii-rw-rw-it--1abcabc132Apr-irw 1曰b匸abc:□un-IFW 1曰buabc:861□'vn1rnxr-xir-x2abcabc4①孕ISAprJrwxr-xr-x2abcabc4邸9疥AprJrwxr-xr-x2abcabc4。夕防Aprabc@nodel:+ssh$Is-al總用星.2.&drwx 2abcabc409?Jundrwxr'xr-x19abcobc4096□un-rw 1曰b匚曰be1675Jun-irw-r—r—1abcabc391Jun-rw-r--r--1abcabc88HJun&bc@node1：7*sshSI3S,27IT33_? q292122亠bas-h_hi-stzo廠￥27IT03)3■baiS-h Logout27IT03-ba&hrc3S鼻cache271835丄czonpi_x2總2牴■conf-Lg27丄72=4■dbu&Z7IT▼drnre35.#guemf2925?gv^s292133■ICEa<Jthor1ty27172=4■XocaTZ7IS3S27ISBQ亠pan_erbvLironmerTt271733亠pirolF-fLe29214<5.盂習nzm2ZL33.xaurhortty27IS30土xlriipsij七irc:29Z1MM亠xsessi_on-errors2P2122亠xsessi-on-errors-oTd27IS3S公■共的27Z7ieIS363S29zi:加■2921:38w■2921:■461d_rsa2921i4Ctd_r&a”pub2921:40known_hosts將該密鑰用作認證，進行訪問授權。按如下命令在nodel執行。（nodel）進入.ssh目錄，生成authorizedkeys文件#cd.sshabc@nodel:?/.ssh#cpid_rsa.pubauthorized_keysabc@nodelr~/*ssh$cpLdrsa*pubauthorizedkeysabc@nodelr~/*ssh$Isauthorlzed_keystd_rsatd_rsa.pubknown_hostsabc@node1:~/+ssh$pwrl/home/^bc/.ssh_7.在nodel安裝/更新nfs服務器1） #sudoapt-getinstallnfs-kernel-servernfs-common建議妄裝的軟件包： 'open-iscsiwatchdog下列【新】軟件包將襪安裝：llbgssgluelltbnfstdnap2llbtirpclnfs-connorinfs-kernel-serverrpcbtnd升級了0亍軟件包‘新安裝了6個軟件包，要卸載0亍軟件包,有353個軟件包未披升級。需要F載427kB的軟件包。解壓塑后會消耗掉1,900kB的額外空間"您希望繼綻執行嗎？[￥/n]y2） 創建共享文件夾在nodel（master或稱server）的/home/abc目錄下創建共享文件夾cluster，作為所有節點共享的目錄（也可將MPICH2安裝在該目錄下，同時可以設置所有節點已啟動便掛在該目錄，便可只在主節點上安裝一次MPICH即可。）abc@nodel:pwd/hone/abcabc^node1:-$Isrwd": 公共的樓板視頻圈片文檔下載育樂卓聞，亠 ahc^ntjde1: sudornkdtrclustermkdtri無法刨建目錄"clusterHi文件已存在桌面abcOnode1.: ts桌面clusternodeZ:公共的樓扳視頻BB片文檔下載育樂■3）修改cluster目錄所屬的用戶及組，使用ls-al命令可以看到，剛才創建的cluster目錄屬于root用戶，需要將它的用戶和組改為abc。drwxr-xr-x21drwxr-xr-x21■ab匸asb匚4096Jundrwxr-xr-xSrootroot4096Apr-rw 1abcabc838Jun-rw-r--r——1abcabc220Ap廠-rw■r■*IT…1abcabc363-7Aprdrwx--17abcabc4096□undrwxr-XF-Xzrooxroot□undrwx--3abcabc^□9&Aprdrwx--2Zabcabc4096Junabc@nt>del:Ls-at總用量.12S22:1117:03-22:05?bashhi-stor17：asba^hl_ogou±17:0S亠bashrc22:09.cacheZZ：11dusker18：35■CORPUZ19:26-BconT"Lgi979779979222222ZZ2使用如下命令更改文件夾擁有者和群組:#sudochownabc:abc/home/abc/clusterz一爭蟲udci■czHown-abui曰匕匸abc^nodiei4會=■-sT-S?1drwxr-xr-XNabc-abc4曰夕防dun29dirwM 4■at>u□'Un=20drwxr■=xr-X玄abcApr2L7drwxr-xr-X2aibc-abcApr27dirwxr-scr■-XN鼻t>U4C3召■&ApITN7dlirwxr-x:it-X=2mb匚日b匸卻3/16ApIFN了drwxr■=xir-X玄abe-dbe嗎13日＜5Apr2L7drwxr-xr-XNabc-abc4曰E專Apr27dirwxr->cit~M2mb匚mbu舛OQiSApITZ27dirwxr-x:if-X工mb匸日b匚ApIT=2了N2z已耳ISS3?185□tStL8:3SLBZ3右IS；3?X8二tL￡3=Z3SJcXlJSXeFnodeZ*公捉的0H片立檔下瞬音樂編輯/etc/exports文件（共享文件夾訪問權限設置）：#Sudogedit/etc/exports或#sudovi/etc/exports▼ 保存旦4撇消立件苦）堀預（曰查召搜弟（S）H貝（T）立檔（四帝助（H）■JexportxZhome/abc/cTusterrw^synCjnorootsqua^h^3） 重啟服務nfs是一個RPC程序，使用前，需要映射好端口。重啟portmap（新版本已替代為文件rpcbind）abc@nodel:/etc/lrblt;*d5sudoapt-gettnstaLLportmapnTs-commoniE在讀取軟件包列表*…完成[E在分析軟件包的依賴關系樹叵在謹取氷態信慝…完底生意,選取廠pcblnd而非portmap^fs-common己經是最新的版車了心pcbi-nd己經是最新的版本了口^pcbLnd被識置光手動安裝。F列欽件包是自動安裝的并且現在不需要了：?重啟nfs-kernel-server服務root@nodel:#sudo/etc/init.d/nfs-kernel-serverrestartabc^nodelsudo/etc/inttxd/rpcbindres七日「七[sudo]passwordforabc;abc^nodelsudo/etc/intt^d/nfs-kernel-serverrestartoppingNFSkerneldaenon [OKLlnexportingdirectoriesforMFSkerneldaemon... [OKNotstartingNFSkerneldaemon:noexports*顯示共享出的目錄abc@nodel:~Sshownount-eExportlistfornodel:/home/abc/cLustsr七abc@nodel|4） 安裝完畢，掛載共享目錄：將node1共享目錄/cluster掛載到各個節點的目錄/cluster在node2安裝/更新nfs服務器#sudoapt-getinstallnfs-kernel-servernfs-common在node2上創建共享目錄/home/abc/clusterabt@nodel=-5^home/abcabc@nodel:~$mkdtr:無法刨ati匚^nodel:Ls:無法訪冋1abc@nodel=-$總用量4Odrwxr-xr-xrlrwx drwxr-xr-xdrwxr-xr-xdrwxr-xr-xdrwxr-xr-xdrwxr-xr-xrlrwxr-xr-xdrwxr-xr-xdrwMr-xr-xhhEneHiTt-1■pwdnk-dvrclws七￡「建目錄"匚Iuster,F：Ls.1_:沒有那個忘f牛或文件己存在目錄2422222222^bbbbbbbbbbamfo曰曰aBBccccccccccbbbbbbbbbb曰aa!曰m曰曰3曰曰4096Jun4395JUD4-&5S6Apr4096Apr439&Apr4-096Apr40^6Apr499?Apr斗。9石Af>r4096Apr997777777722:11Z2:3418:3S18:S318:33:3318:S318:斗3:LE:S818:38r■e的瞪共蠢片檔載嗇"no公蠢旻下慕?掛載目錄，并執行df命令檢查文件系統的磁盤空間占用情況。（注意：系統重啟后需重新掛載）abc@node2:~$sudomount-tnfsnode1:/home/abc/clustercluster（slave節點每次重啟后需運行此掛載命令）abc@node2:~$df?并執行df命令檢查文件系統的磁盤空間占用情況。abc@nodez:sudomounx-tnTsnodel:/home/abc/clusrerclusterabc^nodez:df文件系統lK-blocks已用可用己用離掛載點/devysda11947S2G4405243^144132^222^/none4■34e%/sys/Fs/匚groupudev426412目4264?a1%/devtzmpfs8742414728S9522%/runnone5120OS12?0%/run/Lockr?or>e-1371121524369601%/run/shnnone10240?Z81QZ3721%/run/usernodel:/home/abc/cluster—■zVx_ r=_19-aT8Z7243T7S5&1-1087936-2-1%/home/abc/cluster

8.安裝MPICH3并行計算環境(1)安裝前準備(nodel和node2)1)使用命令可以查看當前編輯器的版本：(nodel和node2)abcgnodel:gcc--versiongcc(Ubuntu4,8r2-19ubuntul)4*0*2Copyright(C)2013FreeSoftworeFoundB七ion，Inc,Thisisfreesoftware;seethesourceforcopyingconditions*ThereisNOwarranty;notevenforMERCHANTABILITYorFITNESSFORAPARTICULARPURPOSE*abc@node1z --versiong+4-(ubuntu4,8,4-2ubun4.3.4Copyright(C)2013rreeSoftwareroundation,IncrThistsfreesoftware;seethesourceforcopyingconditions.ThereIsNOwarranty;notevenforMERCHANTABILITYorFITNESSFORAPARTICULARPURPOSE*abc^nodeli-$python--versionPythem2-7-6abcgnodel:~$從網上下載MPICH壓縮包(mpich.tar.gz)：(nodel)2)圖形模式：瀏覽器下載/downloadabc@node1:cdclusterabcgnodel:-/cluster?Is-1總用雖1122U-rwxrw-rw-1abcabc11487313Jun2923:soabc@node1:-/匚1口帝七巳「$■3)解壓縮tar文件(node1)：abc@node1:?/cluster$#tarxfzmpich-3.1.3tar.gz系統自動生成解壓目錄/文件夾:mpich-3.1.3mpich-3.1.3mpich-3.1.axar.gzmpich-3.1.3mpich-3.1.axar.gz創建mpich3.1安裝目錄(/home/abc/cluste):(nodel)abcfflnodel;~/cl_uster$nkdxrriptuhS”J.drwxrw^r-x2abcdrwxrw^r-x2abcabc409(5-drwxr-xr-x11abcabc-rwxrw-rw-1abcabc13.48733.33t*c@nodel: clustersLs-1總用量1122a□un30g:02mpi.Gh3■1OCT：BZO14Fip1_ch-3.1,3Jun2923:50mpxeh-3.1.3.itar.gz配置(node1)：CongureMPICH,specifyingtheinstallationdirectory,andrunningtheconfigurescriptinthesourcedirectory:cd命令進入mpich-3.1.3解壓目錄：指定安裝配置：abc@node1:~/cluster/mpich-3.1.3$./configure-prefix=/home/abc/cluster/mpich3.1--disable-fortran--disable-fcdbcgrodei:-/cluster/mpich-3.1.3$./configure-prefix-Zhone/abc/cluster/mpich^*1--disable-fartrar--dtsable-fcconftgurLngMPICHverston3.1.3with'-preftx-/home/abc/clij￡ter/mptchi.1--dtsabte-fortran' '--disable-fc'BuildMPICH(構建)(nodel)abc@node1:~/cluster/mpich-3.1.3$makembu電rmdlE].i—/cl.us七Eir/mpi-Czh-S亠 華mal<etestI-h*/s廠匚/*0匸1“￡呂/mpiLQ#h;then\rm-f,/src/tnclude^mpto^h; \Ced./src/LncTude&.&Ln-s../mpl-/ronto/1-ncLLide/npl-och) ; \make a11-make a11-recursivemakefx]:正在進入曰靈'/hone/abcz/clijster/'mptch-3,1,3alti_n/home/abe/clusXer/mptch-3.1.3_/src/nplmakeL^l:IE在進入曰錄'/hone/abc/dustier/mpi-ch-3.1.3/src/nplCC sirc/rnpTs"tirJ-l_oCC sre：/mplizirmem,1o匚匚 sre/-mplenvto

匸匚 src/env/mpt^arsCCLD src/env/mpivarscp-psrc/env/mptcc?Bai￡hsrc/env/mptcccp-psrc/env/mptcxM^bash呂廠匚/env/mptcxxnnk亡[2]:正在商弁目承'/home/abc/cluster/mptch?3.1?3'Makingalttnexamplesmake[2]i正在璉入自呆“/home/abc/ctuster/nplch-臺.1,3/eKampLes*CG Cpl.rOCCILD cp-Lm日k：E[2：]:正在蜃開目錄⑴/home/abc/cLuster/mpich-3.1?3/exanples'make[1LJ*正在離亓目來u/hQme/abG/cluster/npT-ch-3+1.3'abc^nodel:-/cluster/mptch-3.1.3$H7） 安裝（nodel）InstalltheMPICHcommands:abc@nodel:?/cluster/mpich-3.1.3$#makeinstallmptehs.l/ltb/pkgcoriftg'make[3]|:正李睜幵目〔錄"/home/abc/cluster/mpich-3^1,3'make[2]i正在離拜目錄'/home/abc/cLuster/mptch-3*1*3'MakingInstalltnexamplesmake[2]|:正在進入目錄x/home/abc/cluster/nptch-3亠13/examplesmake[3]:正在進入目I親'/home/abc/cl_uster/nptch-3.1.3/examplesmake[3]i沒有什么可UX做的為'tnstall-exesz-am'4make[3]:程宥j十么討旦做的為'Install-dataam?omake|[3]iZE^E 目 '/home/aibc/c'Lus七&廠/冃卩1_匚h-3亠1*3/exampTes1make[2：]:正李商拜曰錄/home/abc/clusrer/mptch-3.1.3/examplessmake|[1]|iTTF^F 目 '/home/abc/ulus■七er/mpi_ch-3*1*3'abc@nodel:-/cLuster/mplch-3.1?3$.檢查安裝：aDdgnodiel:—/dusrer/mpxcri-3.1.3S-cd...ab<@nodel:—/eXust:er$Tsrnp"LChi3.imp-Lch^S.±.3[PipVchi^-^. giat>iC@niOdel:—/elust;er$cdnptjcIti-3,1abc@niOdetL:?/dusxer/nHp"lch3#a$l&b^Lntnulmd豐 XXb名b目廠isabic?model.:?/dusxer/mp"lc：h3#a$8） 修改PATH環境變量，編輯用戶主目錄下的?/.bashrc文件（node1和node2）Addthebinsubdirectoryoftheinstallationdirectorytoyourpath:將安裝后MPICH3.1的bin目錄添加到系統路徑中，即添加到啟動腳本中：abc@node1:?$sudogedit.bashrca?bc@nodel:~5sudogedit,bashrc[sudo]passwordforabc:9）重新設置環境變量（node1和node2）abc@node1:~$source.bashrcmb匚gnodel:~$abc@no<del:^$mb匚gnodel:~$abc@no<del:^$source.bashrmptr^jnnp'Lv^arsmptr^jnnp'Lv^ars10）查看PATH變量變化（node1和node2）abc@node1:~$echo$PATHabc@irkodeJ.:—$echo$PATH/homeab匚fu1ui：stEi-#nip5LchM?1/btn:/usr/TocaT/sblnx/usr/Tocat/bi-ni/usr/sbi-n:/usr/btn;/sbi_n;/blnii/usr/ganes:/usr/local/ganesobc^node1:|abc@node2:echo$PATH/hone/abc/cluster/nptch^*1/bin:/usr/local/sbtn:/usr/tocal；btn:/usr；sbtn:fusr/btn:fshin:/btn:/usr/ganes:/usr/locol/ganes11）查看bin下的可執行程序（node1和node2）abc@node1:~$ls/home/abc/cluster/mpich3.1/binfibc@rhodle1:—STs/