Re: [OMPI users] libmpi.so.0 problem

Tim Prins Tue, 14 Aug 2007 12:01:37 -0400

I meant to say, "exporting the variables is *not* good enough".


Tim

Tim Prins wrote:

In general, exporting the variables is good enough. You really should besetting the variables in the appropriate shell (non-interactive) loginscripts, such as .bashrc (I again point you to the same FAQ entries formore information:http://www.open-mpi.org/faq/?category=running#run-prereqs andhttp://www.open-mpi.org/faq/?category=running#adding-ompi-to-path )


Try running:
mpirun -np 1 printenv
to see what variables are set.

Also,
mpirun -np 1 ldd a.out
will show the libraries your executable is trying to use.

Tim

Durga Choudhury wrote:

Did you export your variables? Otherwise the child shell that forks theMPI process will not inherit it.

On 8/14/07, *Rodrigo Faccioli* <faccioli.postgre...@gmail.com<mailto:faccioli.postgre...@gmail.com>> wrote:


    Thanks, Tim Prins for your email.

    However It did't resolve my problem.

    I set the enviroment variable on my Kubuntu Linux:

    faccioli@faccioli-desktop:/usr/local/lib$
    
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/bin

    faccioli@faccioli-desktop:/usr/local/lib$
    LD_LIBRARY_PATH=/usr/local/lib/

    Therefore, set command will display:

    BASH=/bin/bash
    BASH_ARGC=()
    BASH_ARGV=()
    BASH_COMPLETION=/etc/bash_completion
    BASH_COMPLETION_DIR=/etc/bash_completion.d
    BASH_LINENO=()
    BASH_SOURCE=()
    BASH_VERSINFO=([0]="3" [1]="2" [2]="13" [3]="1" [4]="release"
    [5]="x86_64-pc-linux-gnu")
    BASH_VERSION='3.2.13(1)-release'
    COLORTERM=
    COLUMNS=83
    
DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-C83Ve0QbQz,guid=e07c2bd483a99b50932d080046c199e9
    DESKTOP_SESSION=default
    DIRSTACK=()
    DISPLAY=: 0.0
    DM_CONTROL=/var/run/xdmctl
    EUID=1000
    GROUPS=()
    GS_LIB=/home/faccioli/.fonts
    
GTK2_RC_FILES=/home/faccioli/.gtkrc-2.0-kde:/home/faccioli/.kde/share/config/gtkrc-2.0
    
GTK_RC_FILES=/etc/gtk/gtkrc:/home/faccioli/.gtkrc:/home/faccioli/.kde/share/config/gtkrc

    HISTCONTROL=ignoreboth
    HISTFILE=/home/faccioli/.bash_history
    HISTFILESIZE=500
    HISTSIZE=500
    HOME=/home/faccioli
    HOSTNAME=faccioli-desktop
    HOSTTYPE=x86_64
    IFS=$' \t\n'
    KDE_FULL_SESSION=true
    KDE_MULTIHEAD=false
    KONSOLE_DCOP='DCOPRef(konsole-5587,konsole)'
    KONSOLE_DCOP_SESSION='DCOPRef(konsole-5587,session-2)'
    LANG=en_US.UTF-8
    LD_LIBRARY_PATH=/usr/local/lib/
    LESSCLOSE='/usr/bin/lesspipe %s %s'
    LESSOPEN='| /usr/bin/lesspipe %s'
    LINES=33
    LOGNAME=faccioli
    
LS_COLORS='no=00:fi=00:di=01;34:ln=01;36:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:su=37;41:sg=30;43:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.gz=01;31:*.bz2=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.avi=01;35:*.fli=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.flac=01;35:*.mp3=01;35:*.mpc=01;35:*.ogg=01;35:*.wav=01;35:'

    MACHTYPE=x86_64-pc-linux-gnu
    MAILCHECK=60
    OLDPWD=/home/faccioli
    OPTERR=1
    OPTIND=1
    OSTYPE=linux-gnu
    
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/bin

    PIPESTATUS=([0]="0")
    PPID=5587

    Unfortunately,  when I execute mpirun a.out, the message I received
    is: a.out:  error while loading shared libraries: libmpi.so.0 :
    cannot open shared object file: No such file or directory

    Thanks,


    On 8/14/07, *Tim Prins* < tpr...@open-mpi.org
    <mailto:tpr...@open-mpi.org> > wrote:

        You need to set your LD_LIBRARY_PATH. See these FAQ entries:
        http://www.open-mpi.org/faq/?category=running#run-prereqs
        http://www.open-mpi.org/faq/?category=running#adding-ompi-to-path
        <http://www.open-mpi.org/faq/?category=running#adding-ompi-to-path>

        Tim

        Rodrigo Faccioli wrote:
         > Hi,
         >
         > I need to know what I can resolve my problem. I'm starting my
        study on
         > mpi, more specificaly open-mpi.
         >
         > But, when I execute mpirun a.out, the message I received is:
        a.out:
         > error while loading shared libraries: libmpi.so.0: cannot
        open shared
         > object file: No such file or directory
         >
         > The a.out file was obtained through mpicc hello.c
         >
         > Thanks.
         >
         >
         >
         >
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Re: [OMPI users] libmpi.so.0 problem

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