VII Nvidia GPU Workshop was great, which was organized by Nvidia, PUCRS, and GMAP. The event happened Friday 10/11/2017 at PUCRS. Since the beginning, there were a lot of people. We estimated 200 people in the event, which were researchers, investors, students, startups, and industry.
Reference: https://www.eventbrite.com/e/vii-nvidia-gpu-workshop-pucrs-tickets-38810731944#