Rajeev Thakur is a Senior Computer Scientist at Argonne National Laboratory and a Senior Fellow in the Computation Institute at the University of Chicago. He received a Ph.D. in Computer Engineering from Syracuse University in 1995. His research interests are in the area of high-performance computing in general and particularly in parallel programming models, runtime systems, communication libraries, and scalable parallel I/O. He is a member of the MPI Forum that defines the Message Passing Interface (MPI) standard. He is also co-author of the MPICH implementation of MPI and the ROMIO implementation of MPI-IO, which have thousands of users all over the world and form the basis of many commercial MPI implementations. He was Technical Program Chair of the SC12 conference and is a member of the Steering Committee of the SC conference series.