Awesome, thanks! On Tue, May 12, 2020 at 11:15 PM Gilles Gouaillardet < gilles.gouaillar...@gmail.com> wrote:
> Hi, > > no you do not. > > FWIW, MPI C++ bindings were removed from the standard a decade ago. > mpicc is the wrapper for the C compiler, and the wrappers for the C++ > compilers are mpicxx,mpiCC and mpicxx. > If your C++ application is only using the MPI C bindings, then you do > not need --enable-mpi-cxx for the C++ wrappers to work. > But if your C++ application is using the MPI C++ bindings, you should > consider modernizing it > (plain C bindings, or other C++ abstractions such as Boost.MPI or > Elementals for example) > > Cheers, > > Gilles > > On Wed, May 13, 2020 at 1:00 PM Konstantinos Konstantinidis via users > <users@lists.open-mpi.org> wrote: > > > > Hi, > > I have a naive question. I have built Open MPI 3.1.6 on my system after > configuring as follows: > > ./configure --prefix=/usr/local > > > > I am planning to use Python so I want to build MPI4py 3.0.3 which will > be using the Open MPI implementation. The MPI4py requirements here state > that > > "If you use a MPI implementation providing a mpicc compiler wrapper > (e.g., MPICH, Open MPI), it will be used for compilation and linking. This > is the preferred and easiest way of building MPI for Python." > > > > So I am wondering whether I need the C++ bindings (if still supported in > Open MPI), i.e., does mpicc needs Open MPI to be configured with > "--enable-mpi-cxx" for MPI4py to work? > > > > I won't be coding in C++ at all. > > > > Thanks, > > Konstantinos Konstantinidis > > > > >
