Boost.MPI is basically a nice C++ wrapper around MPI. Before you can use Boost.MPI, you have to install a MPI implementation [1,2]. A basic knowledge of the MPI standard [3] is very useful.
Well, thank you for the links and stuffs but it doesn't quite tell me wether the sentence telling MPI could work across several computers is supported by boost::mpi. Let me explain a bit what I'm trying to do: I discover other computers at runtime (through zeroconf), then I need to connect to them and communicate with them. I was going to use boost::asio and maintain a connected tcp socket with each of the other pcs (I'm coding an application on each computers). Then I saw this sentence from boost::mpi talking about it can work across several computers, and I wondered wether it could be possible to use it instead of rolling my own protocol for communication between the computers. For example, mpi would be of no use if there's no runtime-way to talk to a process on another computer... which is what the api *looks* like as I don't see any connect() or monitor_machine() or whatever api which would allow me to get the processes from another computer. Thank you. Philippe