OAC1 1) Computerfaciliteiten OAC 2) Beowulf Cluster CCM 3) UNIX 5) ?

OAC2 OAC(N328) FAR(P275) IBM os: AIX queue: prev. LL server: Iodine network: 144,unsafe backup: none SGI os: irix 6.5 queue: NQE server: (gate-)nonaan network: 148,secure backup: adsm daily inc 30d capacity: 36GB environment: module shell: zsh, csh, ksh g98 (rung98) adf2000 (runadf) amber6 (runsander) XTC os: linux (kernel 2.4) queue: PBS server: xtc0fs network: 144/priv backup: adsm daily inc 30d capacity: 240GB shell: zsh, csh, bash adf2000 nwchem amber6

OAC3 NT os: win nt 4 queue: n/a fileserver: cobalt printserver: cobalt network: 144,unsafe backup: occasional Z: //cobalt/home/%username% B: zipdrive Programs *)Office 97 *)Adobe Acrobat reader *)Netscape *)Eudora (depreciated) *)Chemdraw *)Weblabviewer lite *)Platon/Pluton *)SSH/SFTP *)Beilstein (xfire) *)Corel Draw/Photopaint *)Winzip

OAC4 Firewall type: packet filtering policy: deny all connection- tracking allow: ssh, ftp, chem.vu.nl N 1010 Oct 25 Portmapper portmap N 1011 Oct 25 Portmapper portmap N 1012 Oct 25 Portmapper portmap-web1.gj.net N 1013 Oct 25 Portmapper portmap-web1.gj.net N 1014 Oct 25 Portmapper portmap N 1015 Oct 25 Portmapper portmap N 1016 Oct 25 root*octine sshd-c cent.net N 1017 Oct 25 root*octine sshd-c cent.net N 1018 Oct 25 root*far12 sshd-c cent.net N 1019 Oct 25 root*far12 sshd-c cent.net N 1020 Oct 26 root*octine pure-ftpd-node08bd.a2000.nl N 1021 Oct 26 Portmapper portmap N 1022 Oct 27 sshd N 1023 Oct 27 sshd N 1024 Oct 27 root*octine sshd N 1025 Oct 27 root*octine sshd N 1026 Oct 27 root*far12 sshd N 1027 Oct 27 root*far12 sshd N 1028 Oct 27 root*octine pure-ftpd-d77250.upc-d.chello.nl N 1029 Oct 27 root*octine pure-ftpd N 1030 Oct 27 root*octine pure-ftpd-adsl turboline.skynet.be N 1031 Oct 27 root*octine pure-ftpd N 1032 Oct 28 root*octine pure-ftpd-.adsl.nerim.net 1033 Oct 28 root*octine pure-ftpd-.abo.wanadoo.fr

OAC5 SARA TERAS (sgi) os: irix queue: lsf server: teras.sara.nl

OAC6 SARA SOLO (ibm) os: aix queue: loadleveller server: solo.sp.sara.nl accounts: v61u0012 stol v61u0001 tc v61u0019 vlipzig

OAC7 Diensten (centrale computerondersteuning) Mail: protocol pop, smtp. server mailhost DNS: ;

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OAC16 XTC.CHEM.VU.NL

OAC17 next generation?

OAC18 Portable Batch System

OAC19 #!/bin/sh ### Job name #PBS -N test ### Declare job non-rerunable #PBS -r n ### Output files #PBS -e test.err #PBS -o test.log ### Mail to user #PBS -m ae ### Queue name (small, medium, long, verylong) #PBS -q medium ### Number of nodes #PBS -l nodes=8 # This job's working directory echo Working directory is $PBS_O_WORKDIR cd $PBS_O_WORKDIR echo Running on host `hostname` echo Time is `date` echo Directory is `pwd` echo This jobs runs on the following processors: echo `cat $PBS_NODEFILE` # Define number of processors NPROCS=`wc -l < $PBS_NODEFILE` echo This job has allocated $NPROCS nodes # Run the parallel MPI executable "mpihello" /usr/local/mpich/bin/mpirun -v -nolocal -machinefile $PBS_NODEFILE -np $NPROCS mpihello

OAC20 Amber 6/sander benchmark for SGI-computers

OAC21 Stack fault Text- read-only parts of program. Static-preknown memory Arena/Break space-dynamic runtime memory. It consists of heap & unused memory. Stack- whenever a program makes a function call, the current function’s state needs to be saved onto the stack.

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OAC24 Why Google? -They're big(ger than Yahoo). -Their search results are relevanced by inbound links. -They run on 10k+ linux boxes. Some RESULTS:: business:86,900,000 linux: 31,600,000 market: 31,200,000 sex: 28,400,000 god: 24,300,000 microsoft: 20,200,000 ibm: 11,700,000 jesus: 8,800,000 chemistry: 5,210,000 macintosh: 4,860,000 python: 2,080,000

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OAC30 *een willekeurig aantal tekens ?1 teken [abc]1 teken uit een lijst [!abc]geen teken uit de lijst $xxxvariable xxx $last line /^The/start of line /begin/,/end/ statementawk pattern shell wildcards & regular expressions

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OAC32 FILTERS-1

OAC33 FILTERS-2

OAC34 FILTERS-3

OAC35 Quota’s # repquota -a /dev/dsk/dks2d1s7 (/home): Disk limits File limits User used soft hard timeleft used soft hard timeleft wit lette vernooys root stol lammert ehlers veis ensing goumans allaart berkheij termaten slootweg borst vgisberg vlaar bulo