From the early days of supercomputing through the stellar success of the Exascale Project, few HPC luminaries have played such an integral and leadership role in supercomputing as  Dr. Paul Messina.  So as we look at the annual observance of the Exascale Day on October eighteenth, we were delighted to get a chance to discuss the journey to Exascale with someone who has led and overseen 10 orders of magnitude in performance improvement.  Dr. Messina’s distinguished career dates back to the early 70s. After earning his PhD at the University Of Cincinnati, Paul joined Argonne National Lab in 1973.  He was involved in building programming language for the original Cray 1. At CalTech, he was the director of the Center for Advanced Computing Research. In 1998 to 2000 he led the DOE-NNSA Accelerated Strategic Computing Initiative (ASCI) program which was at the heart of DOE’s Science Based Stockpile Stewardship strategy and a significant catalyst for supercomputing innovation. Dr. Messina was also the first director of the Exascale Computing Project (ECP) starting from 2015 until late 2017.

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