That doesn't make a whole lot of sense; what compile / link line is resulting in that error message? The error message is saying that libmpi.so depends on an Intel built-in function, but since you built libmpi.so with gcc, that shouldn't happen. Are you sure that libmpi.so wasn't build against the Intel compilers?
Brian On 3/20/12 11:35 AM, "Gunter, David O" <d...@lanl.gov> 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 > > -- Brian W. Barrett Dept. 1423: Scalable System Software Sandia National Laboratories
