I often get questions from those who are just starting with MPI; they want to know common things such as: How to install / setup an MPI implementation How to compile their MPI applications How to run ...

I haven't found any terribly good web tutorials on learning MPI. I have several ideas of things I can enhance by porting them to MPI (evolutionary code, can be massivly parallel), but I haven't found ...

MPI_Cart_sub creates new communicators for subgrids of up to (N-1) dimensions from an N-dimensional cartesian grid. Often, after we have created a cartesian grid, we wish to further group elements of ...

MPI_Cart_get retrieves properties such as periodicity and size of a subgrid. On occasions, a subgrid communicator may be created in one routine and is subsequently used in another routine. If only the ...