Computers, supercomputers and how to use them. Talk covers an intro to how computers actually work, and how to apply this knowledge to make your code more efficent/compatable with supercomputers.
If you want to learn how to program in MPI, we highly advise the free summer school run by the Edinburgh Parallel Computing Centre (epcc). There are 2 courses that run over a week. The first covers the same information as given by Bert in his talk but goes into more depth. The second gives an introduction to programming in MPI.
Both courses are free to attend for academics/students. Note if you want to attend both courses then you have to register for both separately. Alternatively you can attend just one of the courses.