>> In this approach, threads own their data, and communicate with message-passing. This is the same paradigm as MPI, the message parsing interface. Using it, y

>> In this approach, threads own their data, and communicate with message-passing. This is the same paradigm as MPI, the message parsing interface. Using it, you also get for free the ability to deploy your "threaded" code in distributed memory architectures. But any person who had just a bit of experience with this standard can tell you how tedious is to develop a parallel code with it. Maybe this is product of the paradigm or just the verbosity of the API (see for example: http://www.mpich.org/static/docs/v3.1/www3/MPI_Alltoallv.html http://www.mpich.org/static/docs/v3.1/www3/MPI_Alltoallv.htm...).I wish there was some sort of OpenMP or Intel TBB equivalent for MPI to ease out the pain.