Petros Koumoutsakos has received an education in Naval Architecture (NTUA Athens, U. of Michigan), Aeronautics and Applied Mathematics (Caltech). He has conducted post-doctoral studies at the Center for Parallel Computing at Caltech and at the Center for Turbulent Research at Stanford University and NASA Ames. He was appointed as Chair for Computational Science at ETH Zurich in 2000. Petros is elected Fellow of the American Society of Mechanical Engineers (ASME), the American Physical Society (APS), the Society of Industrial and Applied Mathematics (SIAM) and the Collegium Helveticum. He has held visiting fellow positions at Caltech, the University of Tokyo, MIT and the Radcliffe Institute of Advanced Study at Harvard University. He is the recipient of the Advanced Investigator Award by the European Research Council (2013) and led the team that won the ACM Gordon Bell prize in Supercomputing (2013). He was elected to the US National Academy of Engineering (NAE) in 2018. His team researches the how and what of computing to predict, understand and optimize fluid flows across scales in engineering, nanotechnology, and medicine.