Parallel programming in Fortran with MPI (hello world)
Channel: Fortran Boi
Date: 2020-07-19

Brief explanation of MPI, followed by a hello world example in Fortran.
I used Ubuntu 20 (in a VM, which shows at 13 min in, oops)
Update: with the "mpirun --oversubscribe" option you can run with more processes than cores, though not efficient, this can be useful for instance when debugging.