On May 23, 2010, at 11:57 AM, Dawid Laszuk wrote: > It's a bit awkward for me to ask, because I'm not only newbie in > parallel programming but also in Linux system, but i've but searching > for long enough to loose any hopes.
No problem; we'll try to help. > My problem is, when I try to run compiled code with "mpirun" I get output: > mpirun: symbol lookup error: mpirun: undefined symbol: orte_xml_fp > > I can compile code with "mpicc" (i write in C) and it runs, but only > on one CPU ( I have Athlon X2 64bit, dual core ). There is no > difference when I write "mpirun", "mpiexec" or "orterun" (but that's > normal, isn't it?). It doesn't matter what I'm trying to run; I get > that output just by typing it into console. FWIW: all three of those are exactly equivalent in Open MPI (mpirun, mpiexec, orterun). So just to be clear -- if you mpirun a simple MPI test executable (e.g., the test applications in the Open MPI examples/ directory), you get that error message? E.g.: cd examples make mpirun -np 2 examples/hello_c ...you see the missing symbol error here... What happens if you just run hello_c without mpirun? ./hello_c What's the output from "ldd hello_c"? (this tells us which libraries it's linking to at run-time -- from your configure output, it should list /usr/local/lib/libmpi.so in there somewhere) > As I said, I know basics with linux and even adding some libs into sys > path is something which I still don't know ( and don't how much time > to read about). > > I've attached things which maybe helpful ( output from "./configure", > "make all", "make install" ). > I'm using Linux Mint 8 ( Kernel Linux 2.6.31-20-generic). Have two CPU > cores AMD Athlon Dual-Core QL-60. The most common case for this kind of error is mixing-n-matching multiple versions of Open MPI on the same machine. Does your Linux distro come with Open MPI installed already, for example? You might want to configure Open MPI with --enable-mpirun-prefix-by-default -- this does some magic, particularly when running across multiple machines, to try to ensure that the "right" Open MPI installation is picked. -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
