Dear Brian,

Thank you 4 your kind help.
Very interesting that modules application that you pointed out !
I will definately take into consideration.

Cheers
Valter

<snip>

The fact of having to match liblam version/lam runtime makes it
impossible to run those applications on the same machine.
Of course I can change the lam version on the fly, accordingly to
whatever application I have to run in that precise moment, but that
would be quite uncomfortable.... :-(

<snip>

Is there a workaround  on that issue ?


There is not a workaround for the requirement that an entire job run  
the same version of LAM/MPI and that the runtime / application use  
the same version of LAM.

If you have requirements that make multiple versions of LAM  
necessary, I'd recommend looking into the modules package (http:// 
modules.sourceforge.net/).  It was meant to deal with pretty much  
exactly this situation.