yes setting LD_LIBRARY_PATH solved the problem thanks for the help On Fri, Feb 11, 2011 at 7:14 PM, Prentice Bisbal <prent...@ias.edu> wrote:
> swagat mishra wrote: > > hello everyone, > > i have a network of systems connected over lan with each computer > > running ubuntu. openmpi 1.4.x is installed on 1 machine and the > > installation is mounted on other nodes through Networking File > > System(NFS). the source program and compiled file(a.out) are present in > > the mounted directory > > i run my programs by the following command: > > /opt/project/bin/mpirun -np 4 --prefix /opt/project/ --hostfile > > hostfile a.out > > i have not set LD_LIBRARY_PATH but as i use --prefix mpirun works > > successfully > > > > however as per the open mpi debugging faq: > > http://www.open-mpi.org/faq/?category=debugging > > when i run > > /opt/project/bin/mpirun -np 4 --prefix /opt/project/ --hostfile > > hostfile -x DISPLAY=10.0.0.1:0.0 xterm -e gdb a.out > > > > 4 xterm windows are opened with gdb running as expected. however when i > > give the command start to gdb in the windows corresponding to remote > > nodes, i get the error: > > libmpi.so.0 not found: no such file/directory > > > > as mentioned other mpi jobs run fine with mpirun > > > > when i execute > > /opt/project/bin/mpirun -np 4 --prefix /opt/project/ -x > > DISPLAY=10.0.0.1:0.0 xterm -e gdb a.out ,the debugging continues > succesfully > > > > please help > > > > You need to set LD_LIBRARY_PATH to include the path to the OpenMPI > libraries. The --prefix option works for OpenMPI only; it has no effect > on other programs. You also need to make sure that the LD_LIBRARY_PATH > variable is correctly passed along to the other OpenMPI programs. For > processes on other hosts, this is usually done by editing your shell's > rc file for non-interactive logins (.bash_profile for bash). > > -- > Prentice > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
