A three day workshop hosted by the Barcelona Supercomputing Center (BSC) where I gained some hands-on knowledge on their performance tools, e.g. Dimemas and Paraver, which are used to profile High-Performance-Computing (HPC) applications.
Sadly, I was not able to visit the MareNostrum supercomputer, which is located in an old cathedral in Barcelona (picture above).
Ernir Erlingsson 