Hi ! On Sunday 25 May 2008, Ransom Briggs wrote:
Hello,
Here are the problems that I've had trying to get Boost.MPI and MPICH2 to work together (I've had these problems with both boost_1_35_0 and the CVS Boost versions)
CVS ? Sounds strange :-))
gcc.link.dll bin.v2/libs/mpi/build/gcc-4.1.2/release/threading-multi/libboost_mpi- gcc41-mt-1_35.so.1.35.0 /usr/lib/gcc/x86_64-pc-linux-gnu/4.1.2/../../../../x86_64-pc-linux-gn u/bin/ld: /opt/mpich/lib/libmpich.a(attr_get.o): relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC /opt/mpich/lib/libmpich.a: could not read symbols: Bad value collect2: ld returned 1 exit status
*sigh* Which distribution ? I've got this one on SuSE-10.3. The problem is that "libmpich.a" is not compiled with -fPIC. This leads to the compiler warning above. Yes, you must compile _static_ library sources with -fPIC on x86_64.
I'm unsure of where to fix this at, where should I add this?
Blame your distribution vendor. Or compile mpi from scratch. For the record: Boost.Build adds -fPIC for all compilations (shared and static) due to this gcc behaviour. Yours, Jürgen -- * Dipl.-Math. Jürgen Hunold ! Ingenieurgesellschaft für * voice: ++49 511 262926 57 ! Verkehrs- und Eisenbahnwesen mbH * fax : ++49 511 262926 99 ! Lister Straße 15 * juergen.hunold@ivembh.de ! www.ivembh.de * * Geschäftsführer: ! Sitz des Unternehmens: Hannover * Prof. Dr.-Ing. Thomas Siefer ! Amtsgericht Hannover, HRB 56965 * PD Dr.-Ing. Alfons Radtke !