Open MPI List, Recently in trying to build some libraries with NVHPC + Open MPI, I hit an error building HDF5 where it died at configure time saying that the zlib that Open MPI wanted to link to (my system one) was incompatible with the zlib I built in my libraries leading up to HDF5. So, in the end I "fixed" my issue by adding:
--without-zlib to my configure line for Open MPI and rebuilt. And hey, it worked. HDF5 built. And Hello world still works as well. But I'm now wondering: what might I be missing now? Zlib isn't required by the MPI Standard (as far as I can tell), so I'm guessing it's not functionality but rather performance? Just curious, Matt -- Matt Thompson “The fact is, this is about us identifying what we do best and finding more ways of doing less of it better” -- Director of Better Anna Rampton
