Hi,
Stephan Seidl a écrit , Le 23/05/2008:
> Package: pvm
> Version: 3.4.5-7
>
> Report-Headline: PVM group server cannot be started
>
> When I start some PVM application, consisting of a shell script which
> invokes a binary file, then I get the following error message.
>
> =========================================================================
> seidl@smobi: ./Start-w-pvm cc=isoc89
>
> pvm> conf
> 1 host, 1 data format
> HOST DTID ARCH SPEED DSIG
> smobi 40000 LINUX 1000 0x00408841
> pvm> quit
>
> Console: exit handler called
> pvmd still running.
>
> /tmp/fmc/work/isoc89@smobi/bin/fmc
> libpvm [t40002]: gs_getgstid() failed to start group server: No such file
> fmc[112]: (i_pvminit): Error in PVM group server.
> =========================================================================
>
> The appropriate environment looks as follows.
>
> =========================================================================
> seidl@smobi: set | grep PVM
> PVM_ARCH=LINUX
> PVM_EXPORT=PATH:DISPLAY:PVM_ROOT
> PVM_ROOT=/usr/lib/pvm3
> seidl@smobi: set | grep PATH=
> PATH=...:/usr/lib/pvm3/lib:...
> =========================================================================
>
> `pvmgetarch' returns `LINUX'.
> After repairing an installation error, which should herewith be reported,
> the output looks as follows.
>
> =========================================================================
> seidl@smobi: ./Start-w-pvm cc=isoc89
>
> pvm> conf
> 1 host, 1 data format
> HOST DTID ARCH SPEED DSIG
> smobi 40000 LINUX 1000 0x00408841
> pvm> quit
>
> Console: exit handler called
> pvmd still running.
>
> /tmp/fmc/work/isoc89@smobi/bin/fmc
>
> Number of running message-passing processes is 8
> Role Iworker 1 rank 1 cluster 0 (smobi)
> Role Oworker 1 rank 0 cluster 0 (smobi)
> Role Sworker 1 rank 2 cluster 0 (smobi)
> Role Sworker 2 rank 3 cluster 0 (smobi)
> Role Sworker 3 rank 4 cluster 0 (smobi)
> Role Sworker 4 rank 5 cluster 0 (smobi)
> Role Sworker 5 rank 6 cluster 0 (smobi)
> Role Sworker 6 rank 7 cluster 0 (smobi)
> =========================================================================
>
> The installation error itself can be fixed by the following shell commands.
>
> =========================================================================
> # Deal with PVM.
> pvmarch="unknown"
> test -x /usr/bin/pvmgetarch && pvmarch=`/usr/bin/pvmgetarch`
> if [ -d /usr/lib/pvm3/bin ]; then
> if [ ! -d "/usr/lib/pvm3/bin/${pvmarch}" ]; then
> # Error in Debian Etch, at least.
> # Allow to automatically start the PVM group server.
> mkdir "/usr/lib/pvm3/bin/${pvmarch}"
> chown 0.0 "/usr/lib/pvm3/bin/${pvmarch}"
> chmod 755 "/usr/lib/pvm3/bin/${pvmarch}"
> fi
> fi
> if [ -d "/usr/lib/pvm3/bin/${pvmarch}" -a -x /usr/bin/pvmgs ]; then
> if [ ! -L "/usr/lib/pvm3/bin/${pvmarch}/pvmgs" ]; then
> # Error in Debian Potato/Woddy/Sarge/Etch, at least.
> # Allow to automatically start the PVM group server.
> (cd "/usr/lib/pvm3/bin/${pvmarch}" && ln -s ../../../../bin/pvmgs)
> fi
> fi
> =========================================================================
>
> It is seen that the problem is quite old. This time, it should perhaps
> be tackled. It seems that the problem is a Debian problem only, because,
> if I install PVM from the upstream sources, `/usr/lib/pvm3/bin/${pvmarch}'
> is, as far as I can remember, selected as the place where some binaries
> reside to keep inhomogeneity manageable. Perhaps, the above shell
> commands should simply be executed by the `postinst' script with
> the appropriate cleanup in `prerm'.
>
> If you are looking for a simple test case, extract the code from
> `http://rcswww.urz.tu-dresden.de/~seidl/slides/pvm/simplepvmtest.pdf'
> by cut/past, and execute
>
> cat simplepvmtest.c | sed s,100000,100, > pvmtest.c
> cc -o pvmtest pvmtest.c -lgpvm3 -lpvm3
> echo conf | pvm
> ./pvmtest > pvmtest-OUT
> echo halt | pvm
>
> It should work.I've just got bitten by this very same bug with pvm-3.4.5-12.2 (squeeze). The simplest way to reproduce it is : $ echo "spawn pvmgs" | pvm; echo "halt" | pvm pvm> spawn pvmgs 0 successful No such file ... And the simplest userspace workaround is to define the environment variable PVM_PATH: $ export PVM_PATH=/usr/lib/pvm3/lib Hope this helps, _g.
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