I tried that at first but hit the same problem I'm having now - lot's of "__intel_" undefined errors when I go to compile even the simplest of mpi codes.
-david -- David Gunter HPC-3: Infrastructure Team Los Alamos National Laboratory On Mar 20, 2012, at 9:36 AM, Jeffrey Squyres wrote: > Can you build with g++ instead of icpc? > > All the C++ MPI bindings are inlined anyway, so the performance difference > between the two might be negligible. > > > On Mar 20, 2012, at 11:35 AM, Gunter, David O wrote: > >> I wish it were that easy. When I go that route, I get error messages like >> the following when trying to compile the parallel code with Intel: >> >> libmpi.so: undefined reference to `__intel_sse2_strcpy' >> >> and other messages for every single Intel-implemented standard C-function. >> >> -david >> -- >> David Gunter >> HPC-3: Infrastructure Team >> Los Alamos National Laboratory >> >> >> >> >> On Mar 20, 2012, at 8:18 AM, Barrett, Brian W wrote: >> >>> On 3/20/12 10:06 AM, "Gunter, David O" <d...@lanl.gov> wrote: >>> >>>> I need to build ompi-1.4.3 (or the newer 1.4.5) with an older Intel 10.0 >>>> compiler, but on a newer system in which the default g++ headers are >>>> incompatible with Intel. Thus the C and Fortran compilers function >>>> normally but the Intel C++ compiler fails to build even a simple "hello >>>> world" code. >>>> >>>> Is there a way to build OMPI without a C++ compiler? I tried using the >>>> --disable-mpi-cxx and --disable-mpi-cxx-seek flags but these are just for >>>> the resulting bindings. The configure step still continues to search for >>>> a working C++ compiler. >>>> >>>> Yes, I know I can upgrade the Intel compiler but we don't have that as an >>>> option in this case. >>> >>> Unfortunately, you're a bit out of luck. Open MPI 1.4.x requires C++ even >>> if you're not building the C++ bindings. This is not true of 1.5.x and >>> later. >>> >>> If you don't need the C++ bindings, I would build Open MPI with GNU C and >>> C++ and Intel Fortran. After building, edit >>> <PREFIX>/share/openmpi/mpicc-wrapper-data.txt to change the compiler=gcc >>> line to compiler=<intel C compiler>. There's not going to be much >>> performance difference between the two compilers for Open MPI itself. GNU >>> C and Intel C are link compatible, so that should work out for you and the >>> users will never be the wiser. >>> >>> Brian >>> >>> -- >>> Brian W. Barrett >>> Dept. 1423: Scalable System Software >>> Sandia National Laboratories >>> >>> >>> >>> >>> >>> >>> _______________________________________________ >>> 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 > > > -- > 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
