In March 2017 I got invited to the CINECA supercomputing facility in Casaleccio di Reno near Bologna in Italy. They had recently installed their latest system, the Marconi A2 powered by Intel Xeon Phi 7250 CPUs. My colleague Peter and I had worked on the QPhiX library which explicitly targets these type of processors.
Both of us applied for this two day workshop and got accepted with our talk. Although the workshop started at noon and ended at noon the following day, it was cheaper for us to stay two more nights and take other flights. Fortunately Lenovo covered both the flight and the hotel, so this trip was pretty much a gift. Also we did not have to book anything, we just got a flight ticket send to us.