OK guys... Thanks for all this info. Frankly, I didn't know these diferences between OpenMP and OpenMPI. The commands: which mpirun which mpif90 which mpicc give, /usr/bin/mpirun /usr/bin/mpif90 /usr/bin/mpicc respectively.
A tutorial on how to compile WRF ( http://www.mmm.ucar.edu/wrf/OnLineTutorial/compilation_tutorial.php) provides a test program to test MPI. I ran the program and it gave me the output of successful run, which is: --------------------------------------------- C function called by Fortran Values are xx = 2.00 and ii = 1 status = 2 SUCCESS test 2 fortran + c + netcdf + mpi --------------------------------------------- It uses mpif90 and mpicc for compiling. Below is the output of 'ldd ./wrf.exe': linux-vdso.so.1 => (0x00007fff584e7000) libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f4d160ab000) libgfortran.so.3 => /usr/lib/x86_64-linux-gnu/libgfortran.so.3 (0x00007f4d15d94000) libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f4d15a97000) libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f4d15881000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f4d154c1000) /lib64/ld-linux-x86-64.so.2 (0x00007f4d162e8000) libquadmath.so.0 => /usr/lib/x86_64-linux-gnu/libquadmath.so.0 (0x00007f4d1528a000) On Mon, Apr 14, 2014 at 4:09 PM, Gus Correa <g...@ldeo.columbia.edu> wrote: > Djordje > > Your WRF configure file seems to use mpif90 and mpicc (line 115 & > following). > In addition, it also seems to have DISABLED OpenMP (NO TRAILING "I") > (lines 109-111, where OpenMP stuff is commented out). > So, it looks like to me your intent was to compile with MPI. > > Whether it is THIS MPI (OpenMPI) or another MPI (say MPICH, or MVAPICH, > or Intel MPI, or Cray, or ...) only your environment can tell. > > What do you get from these commands: > > which mpirun > which mpif90 > which mpicc > > I never built WRF here (but other people here use it). > Which input do you provide to the command that generates the configure > script that you sent before? > Maybe the full command line will shed some light on the problem. > > > I hope this helps, > Gus Correa > > > On 04/14/2014 03:11 PM, Djordje Romanic wrote: > >> to get help :) >> >> >> >> On Mon, Apr 14, 2014 at 3:11 PM, Djordje Romanic <djord...@gmail.com >> <mailto:djord...@gmail.com>> wrote: >> >> Yes, but I was hoping to get. :) >> >> >> On Mon, Apr 14, 2014 at 3:02 PM, Jeff Squyres (jsquyres) >> <jsquy...@cisco.com <mailto:jsquy...@cisco.com>> wrote: >> >> If you didn't use Open MPI, then this is the wrong mailing list >> for you. :-) >> >> (this is the Open MPI users' support mailing list) >> >> >> On Apr 14, 2014, at 2:58 PM, Djordje Romanic <djord...@gmail.com >> <mailto:djord...@gmail.com>> wrote: >> >> > I didn't use OpenMPI. >> > >> > >> > On Mon, Apr 14, 2014 at 2:37 PM, Jeff Squyres (jsquyres) >> <jsquy...@cisco.com <mailto:jsquy...@cisco.com>> wrote: >> > This can also happen when you compile your application with >> one MPI implementation (e.g., Open MPI), but then mistakenly use >> the "mpirun" (or "mpiexec") from a different MPI implementation >> (e.g., MPICH). >> > >> > >> > On Apr 14, 2014, at 2:32 PM, Djordje Romanic >> <djord...@gmail.com <mailto:djord...@gmail.com>> wrote: >> > >> > > I compiled it with: x86_64 Linux, gfortran compiler with >> gcc (dmpar). dmpar - distributed memory option. >> > > >> > > Attached is the self-generated configuration file. The >> architecture specification settings start at line 107. I didn't >> use Open MPI (shared memory option). >> > > >> > > >> > > On Mon, Apr 14, 2014 at 1:23 PM, Dave Goodell (dgoodell) >> <dgood...@cisco.com <mailto:dgood...@cisco.com>> wrote: >> > > On Apr 14, 2014, at 12:15 PM, Djordje Romanic >> <djord...@gmail.com <mailto:djord...@gmail.com>> wrote: >> > > >> > > > When I start wrf with mpirun -np 4 ./wrf.exe, I get this: >> > > > ------------------------------------------------- >> > > > starting wrf task 0 of 1 >> > > > starting wrf task 0 of 1 >> > > > starting wrf task 0 of 1 >> > > > starting wrf task 0 of 1 >> > > > ------------------------------------------------- >> > > > This indicates that it is not using 4 processors, but 1. >> > > > >> > > > Any idea what might be the problem? >> > > >> > > It could be that you compiled WRF with a different MPI >> implementation than you are using to run it (e.g., MPICH vs. >> Open MPI). >> > > >> > > -Dave >> > > >> > > _______________________________________________ >> > > users mailing list >> > > us...@open-mpi.org <mailto:us...@open-mpi.org> >> >> > > http://www.open-mpi.org/mailman/listinfo.cgi/users >> > > >> > > <configure.wrf>_____________________________________________ >> __ >> > > users mailing list >> > > us...@open-mpi.org <mailto:us...@open-mpi.org> >> >> > > http://www.open-mpi.org/mailman/listinfo.cgi/users >> > >> > >> > -- >> > Jeff Squyres >> > jsquy...@cisco.com <mailto: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 <mailto:us...@open-mpi.org> >> >> > http://www.open-mpi.org/mailman/listinfo.cgi/users >> > >> > _______________________________________________ >> > users mailing list >> > us...@open-mpi.org <mailto:us...@open-mpi.org> >> >> > http://www.open-mpi.org/mailman/listinfo.cgi/users >> >> >> -- >> Jeff Squyres >> jsquy...@cisco.com <mailto: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 <mailto:us...@open-mpi.org> >> >> http://www.open-mpi.org/mailman/listinfo.cgi/users >> >> >> >> >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users >> >> > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
