[OMPI users] Limits of communicator size and number of parallel broadcast transmissions

Hi, I have some questions regarding technical details of MPI collective communication methods and broadcast: - I want to understand when the number of receivers in a MPI_Bcast can be a problem slowing down the broadcast. There are a few implementations of MPI_Bcast. Consider that of a bin

[OMPI users] Do I need C++ bindings for Open MPI mpicc

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

Re: [OMPI users] Do I need C++ bindings for Open MPI mpicc

lain 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 > wrote: > > > > Hi, > > I have a naive question. I have built Open