Hi Jeff and Reuti, thank you for your responds. "ldd hello_cxx" gave me some clue, and I found it was linked to some mpich library which was installed under/usr/lib64. When I removed mpich libraries, and recompile, everything includes mpicc and mpirun worked fine.
I didn't have that problem with eariler openmpi versions like 1.6.x and 1.5.x. I would like to keep mpich libraries on the system, is there any confiure option I can use to make 1.6.4 library link the same as 1.6.3? Thanks again! Limin On Thu, Mar 7, 2013 at 9:34 AM, Jeff Squyres (jsquyres) <jsquy...@cisco.com>wrote: > On Mar 7, 2013, at 9:31 AM, Reuti <re...@staff.uni-marburg.de> wrote: > > >> [root@tesla examples]# echo $LD_LIBRARY_PATH > >> /opt/scyld/openmpi/1.6.4/gnu/lib > >> [root@tesla examples]# which mpicc > >> /opt/scyld/openmpi/1.6.4/gnu/bin/mpicc > >> [root@tesla examples]# mpicc -o hello_c hello_c.c > >> /tmp/ccuZg1I9.o: In function `main': > >> hello_c.c:(.text+0x1d): undefined reference to `ompi_mpi_comm_world' > >> hello_c.c:(.text+0x2b): undefined reference to `ompi_mpi_comm_world' > > > > What is the output if you compile in addition with -v (verbose)? > > Also, what's the output if you use --showme? I'd like to see the > underlying command that is being used. > > When you successfully compile/link hello_cxx, what does "ldd hello_cxx" > show? > > -- > Jeff Squyres > jsquy...@cisco.com > For corporate legal information go to: > http://www.cisco.com/web/about/doing_business/legal/cri/ > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
