Leonel Antonio Toledo Díaz is a senior researcher at Fundació i2cat who is focused on high performance computing using accelerators. His interests include visualization, AI, computer graphics, HPC, and parallel algorithms. He has also worked on using general-purpose graphics processors for high-performance graphics. Leonel received his Ph.D from Instituto Tecnológico de Estudios Superiores de Monterrey Campus Estado de México in 2014, where he was a full-time professor from 2012-16. He has devoted most of his research work to crowd simulation and visualization optimization. Currently he is performing research in holoportation and virtual reality environments.