[johndeas]

Hi,

I am trying to run OpenFOAM on a Red Hat Entreprise Linux 3, blockMesh and icoFoam run fine on the cavity case, but when I tried to run decomposePar to solve it across several nodes, I get :

decomposePar: /lib/tls/libc.so.6: version `GLIBC_2.3.4' not found (required by /home/flurec/OpenFOAM/OpenFOAM-1.4.1/lib/linuxGccDPOpt/libGKlib.so)

Has anyone get through this problem ? I haven't had it on Centos 5.1 or Ubuntu 7.10 ...

I also tried to run wmake in the decomposePar directory, but I got errors while it compile /tmp/ccLhuesa.s

[johndeas]

And, if I run decomposePar on another machine, and then launch icoFoam in parallel on the RHEL 3 machine, I get this message :

mca: base: component_find: unable to open paffinity linux: file not found (ignored)

... but the computation runs anyway and output results. Is this a severe default ?

[eugene]

RHEL 3 uses glibc_2.3.2

Upgrade your OS it is nearly 5 years old.

The only other alternative is to recompile everything including 3rd party components like gcc from scratch.

[gschaider]

Maybe relinking is sufficient. It's faster. But recompiling is safer.

(Problem is, that still RHEL3 seems to be quite popular with clusters)

BTW: Relinking: just remove everything in $FOAM_LIBBIN and $FOAM_APPBIN and Allwmake.

[eugene]

Er, even if you leave everything in $FOAM_LIBBIN and $FOAM_APPBIN, executing Allwmake on a clean distribution will still trigger a complete recompile since the intermediate .o files are stripped out before release.

I think you have recompiled your own distro once to often!

[valery_reznic]

You can use ermine (http://magicErmine.com) or statifier (http://statifier.sf.net) to pack program on system where it's work (Ubuntu) and them move packed executable to the "box in question"

Valery

[nsp82]

The same thing happened for me in RHEL 3. I haven't solved the problem yet....

[gschaider]

@Eugene: you're partly right: I compiled it twice to often.

I pull back my post. Recompiling is ALWAYS the solution. And do it on the system with the lowest version number. Then the binaries should propably be compatible to all the others. (Assuming you only have distros from the same "family". If for instance you have a zoo of RedHat and Ubuntu boxes: Use the one with the lowest glibc)

[eugene]

I really dislike glibc - nothing technical, just on a personal level.

Re static linking: Since OpenFOAM has more than a hundred executables, linking them all statically would use quite a lot of disk space.

[johndeas]

Thank all for your advices.