Thank you Gilles, One more question. Do I need to add the following lines to the .bashrc file after installing Open MPI?
export PATH="$PATH:/usr/local/bin" export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/lib" On Sun, May 13, 2018 at 8:48 PM, Gilles Gouaillardet <gil...@rist.or.jp> wrote: > Konstantinos, > > > Since you ran > > configure --prefix=/usr/local > > the system-wide config file should be in > > /usr/local/etc/openmpi-default-hostfile > > > Note /usr/local is the default prefix, so you do not even need the > --prefix=/usr/local option > > > Cheers, > > > Gilles > > > On 5/12/2018 6:58 AM, Konstantinos Konstantinidis wrote: > >> Yeap, exactly the hostfile I have is of the form >> >> node1 slots=1 >> node2 slots=1 >> node3 slots=1 >> >> where the above hostnames are resolved in ~/.ssh/config file which has >> entries of the form >> >> Host node1 >> HostName 192.168.0.100 >> User ubuntu >> IdentityFile ~/.ssh/mykey.pem >> >> and so on. >> >> So the mpirun cannot pickup the hostfile by itself and I have to specify >> it each time. >> >> >> On Fri, May 11, 2018 at 4:02 PM, Jeff Squyres (jsquyres) < >> jsquy...@cisco.com <mailto:jsquy...@cisco.com>> wrote: >> >> Can you provide some more detail? I'm not able to get this to >> fail (i.e., it seems to be working as expected for me). >> >> For example, what's the contents of your >> /etc/openmpi/openmpi-default-hostfile -- did you list some >> hostnames in there? >> >> >> > On May 11, 2018, at 4:43 AM, Konstantinos Konstantinidis >> <kostas1...@gmail.com <mailto:kostas1...@gmail.com>> wrote: >> > >> > Hi, >> > >> > I have built Open MPI 2.1.2 multiple times on Ubuntu 16.04 and >> then I add the line >> > >> > orte_default_hostfile=/etc/openmpi/openmpi-default-hostfile >> > >> > to the file >> > >> > /etc/openmpi/openmpi-mca-params.conf >> > >> > and I execute >> > >> > sudo chown myUsername /etc/openmpi/openmpi-default-hostfile >> > >> > For some reason this change never goes through and each time I >> run a program with mpirun only one local process runs. So I have >> to manually specify my hostname with the --hostfile argument. >> > >> > What can be the cause of this? >> > >> > The exact series of commands I use for building is the following >> > >> > sudo apt-get update >> > sudo apt-get upgrade >> > sudo apt-get install g++ >> > sudo apt-get install valgrind >> > sudo apt-get install libopenmpi-dev >> > sudo apt-get install gfortran >> > sudo apt-get install make >> > wget >> https://www.open-mpi.org/software/ompi/v2.1/downloads/openmp >> i-2.1.2.tar.gz >> <https://www.open-mpi.org/software/ompi/v2.1/downloads/openm >> pi-2.1.2.tar.gz> >> >> > tar -xvf openmpi-* && cd openmpi-* >> > ./configure --prefix=/usr/local --enable-mpi-cxx --enable-debug >> --enable-memchecker --with-valgrind=/usr >> > sudo make all install >> > >> > Then, I add the following lines to the .bashrc file (Is this >> necessary?) >> > >> > export PATH="$PATH:/usr/local/bin" >> > export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/lib" >> > >> > for setting the path and library path, respectively and of >> course reload .bashrc. >> > >> > Is the above way of installing Open MPI correct? I am really >> wondering since I have no solid Linux knowledge. >> > _______________________________________________ >> > users mailing list >> > users@lists.open-mpi.org <mailto:users@lists.open-mpi.org> >> > https://lists.open-mpi.org/mailman/listinfo/users >> <https://lists.open-mpi.org/mailman/listinfo/users> >> >> >> -- Jeff Squyres >> jsquy...@cisco.com <mailto:jsquy...@cisco.com> >> >> >> >> >> _______________________________________________ >> users mailing list >> users@lists.open-mpi.org >> https://lists.open-mpi.org/mailman/listinfo/users >> > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users >
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