DOE names Diachin to exascale project

high performance computing (Gorodenkoff/

Lori Diachin, an experienced leader in exascale computing efforts at several national labs, will become deputy director of the Department of Energy's two-year-old high-performance computing mission.

According to a statement from Lawrence Livermore National Laboratory (LLNL), Diachin will step into the role on Aug. 7, replacing the now-retired Stephen Lee.

The DOE’s Exascale Computing Project, formed in 2016, has become a focus for Energy Secretary Rick Perry, who has prioritized development of exascale computers and quantum computing capabilities at the department. He has said supercomputing is crucial not only to the U.S. economy, but also to national security. President Donald Trump requested $636 million specifically for exascale computing development in his FY19 budget.

Although Oak Ridge National Lab’s Summit supercomputer recently regained the top slot on the list of the world’s fastest computers, a number of machines from China, Switzerland and Japan are hot on its heels. In April, the DOE issued two requests for proposals for two exascale computers that would be developed by 2023. The systems will be located at LLNL and Oak Ridge.

Before being named to the new position, Diachin served as deputy associate director for science and technology in LLNL's Computation Directorate.

She is a 15-year veteran of national labs’ work with high-performance computing projects, having served in leadership roles at Sandia National Labs and Argonne National Lab, according to LLNL.

She has also directed the Center for Applied Scientific Computing at LLNL, cross-lab projects such as the DOE’s Department of Science’s FASTMath SciDAC Institute and DOE's HPC4Manufacturing and HPC4Materials programs at its Energy Efficiency and Renewable Energy and Fossil Energy program offices.

About the Author

Mark Rockwell is a senior staff writer at FCW, whose beat focuses on acquisition, the Department of Homeland Security and the Department of Energy.

Before joining FCW, Rockwell was Washington correspondent for Government Security News, where he covered all aspects of homeland security from IT to detection dogs and border security. Over the last 25 years in Washington as a reporter, editor and correspondent, he has covered an increasingly wide array of high-tech issues for publications like Communications Week, Internet Week, Fiber Optics News, magazine and Wireless Week.

Rockwell received a Jesse H. Neal Award for his work covering telecommunications issues, and is a graduate of James Madison University.

Click here for previous articles by Rockwell. Contact him at [email protected] or follow him on Twitter at @MRockwell4.


  • Government Innovation Awards
    Government Innovation Awards -

    Congratulations to the 2021 Rising Stars

    These early-career leaders already are having an outsized impact on government IT.

  • Acquisition
    Shutterstock ID 169474442 By Maxx-Studio

    The growing importance of GWACs

    One of the government's most popular methods for buying emerging technologies and critical IT services faces significant challenges in an ever-changing marketplace

Stay Connected