On Apr 16, 2010, at 12:05 PM, Baowei Liu wrote: > Thanks for your reply. Sorry I didn't make it clear..... When I run > config.guess of gcc, it gives me the x86_64 system. But when I run "uname > -a", it says it's i386. I think that's the reason OMPI complains about "more > than one -arch option (not allowed, use cc(1) instead)".
What do you mean? I don't think you've mentioned that before...? > The new gcc can create executibals. I use it to compile my own c++ programs. > And I don't need special flags. I need a higher version of gcc than the > default one just because I cannot build a package (QE:Quantum Espresso) with > the default gcc -- QE uses OMPI. I can install OMPI with the default gcc. I > tried this: > > 1. install OMPI with default gcc and OMPI works fine. > 2. install the new gcc and install the QE package, successfully. > 3. mpirun stops working with eorror" cannot initialize" This is the first time you've mentioned this, too. :-) Did you re-install Open MPI with the new gcc (and no -m flags, etc.)? If that doesn't work, please send all the information listed here: http://www.open-mpi.org/community/help/ -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/