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  • 24 November 2010

    Dear Users of CICC!

    Added the following information:

    Compilation and start of sequential and parallel tasks at the CICC JINR (rus)
    Experience of paralleling large computing programs
    A parallel version of the MINUIT program
    (rus)
    Second experience of paralleling large computing programs
    A parallel version of the FUMILI program
    (rus)

  • 18 November 2010

    Dear Users of CICC!

    Next information was renewed:

    Architecture and equipment of CICC

  • 21 June 2010

    Dear Users of CICC!

    Next information was renewed:

    CICC structural scheme
    Logical structure of CICC network


  • 30 April 2010

    Dear Users of CICC!

    The outdated data storage system dCache - lxfs07.jinr.ru at the nearest future will be changed for a new one - lxse-dc01.jinr.ru. If you store data on lxfs07.jinr.ru and you are in need of them, you should transfer them to the new system as soon as possible. The old system will be accessible till15 May, then all the data and the system itself will be terminated.

    In the new system dCache - lxse-dc01.jinr.ru access as to registration and reading is organized with user authorization by the Kerberos5 protocol. This means that user must:

      - be registered in the base Kerberos5;
      - be registered in the bases of the dCache system.

    As a rule, all the CICC users have registration in Kerberos5 as they work in AFS. You can check-up your registration by instruction klist:
    klist 2>/dev/null | grep `whoami`@JINR.RU
    Output of the instruction must be not blank.

    The registration in the dCache system can be done via Vladimir Trofimov: tvv@jinr.ru

    Scheme of data transfer from lxfs07.jinr.ru to lxse-dc01.jinr.ru

    Data transfer can be done at each machine lxpub01, lxpub02, lxpub03 and lxpub05.

    1. Specify variables and create a temporal directory in scratch area:
      U=`whoami`
      UFL=`whoami | cut -c 1-1`
      SCR_DIR=/scr/u/$U/datatr
      SDC=dcap://lxfs07.jinr.ru:22125/pnfs/jinr.ru/data/user/$UFL/$U
      DDC=dcap://lxse-dc01.jinr.ru:22126/pnfs/jinr.ru/data/user/$UFL/$U
      mkdir -p $SCR_DIR
    2. Specify load of the library to maintain work with URL of type dcap://..., it is needed for work of instructions:
      ls, rm with file addresses of type:

      dcap://lxfs07.jinr.ru:22125/pnfs/jinr.ru/...
      and
      dcap://lxse-dc01.jinr.ru:22126/pnfs/jinr.ru/...

      export LD_PRELOAD=libpdcap.so
    3. See what we have on the outdated dCache - lxfs07.jinr.ru:

      /bin/ls -l $SDC/
    4. Rewrite file file1 л lxfs07.jinr.ru into the local scratch area:

      dccp $SDC/file1 $SCR_DIR/file1
    5. Rewrite file1 from the local scratch area to lxse-dc01.jinr.ru, DCACHE_IO_TUNNEL specifies authorization method in dCache, in this particular case - kerberos5:

      DCACHE_IO_TUNNEL=libgssTunnel.so dccp $SCR_DIR/file1 $DDC/file1
    6. Delete the transferred file from the old dCache and scratch:

      rm -f $SDC/file1 $SCR_DIR/file1

    Items 4, 5 о 6 repeat for all files at lxfs07.jinr.ru
    Check-up what we finally have at the new dCache lxse-dc01.jinr.ru

    DCACHE_IO_TUNNEL=libgssTunnel.so ls -l $DDC/


  • 17 April 2010

    Dear Users of CICC!

    Due to /h/w problem there are dirs & files messed up in /nemo dirs tree has been renamed to <user-dir/file>.
    A few files has been disappeared from /harp, /compass and /alice dirs tree on lxpubXX.
    Sorry for inconveniences.


  • 8 April 2010

    Dear Users of CICC!

    All machines in computing room will be unavailable from 13 April 22:00 till 16 April 22:00 for network and main power switch/breaker maintenance.


  • 4 March 2010

    Dear Users of CICC!

    All machines in computing room will be unavailable from 9 March 14:00 till 10 March 18:00 for main power switch/breaker maintenance.


News Archive for 2009
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