Hello, I've installed mpich2 on ubuntu i386(master) via https://help.ubuntu.com/community/MpichCluster I have another machine amd64(slave). When i run my script on master I get an error: error while loading shared libraries: linbmpich.so.3: wrong ELF CLASS: ELFCLASS64 Is mpich compatible with different architectures? If so what's the easiest way for me to get rid of my error? Also note that I need this to work with x86-64 as well. Best, Peter