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2018 GTC San Jose

S8270 - Acceleration of a LLNL Production Fortran Application on SIERRA Supercomputer

Session Speakers
Session Description

The U.S. Department of Energy's (DOE) stockpile stewardship mission relies heavily on petascale simulations that have traditionally run on homogeneous architecture supercomputers. The DOE and Lawrence Livermore National Lab's newest computer, SIERRA, which is scheduled to be the second most powerful supercomputer in the nation, is being installed and employs a heterogeneous architecture leveraging both IBM Power9 CPUs and NVIDIA Volta GPUs. This talk presents performance results for Teton, a mission-critical radiative transport application, as it is re-engineered to leverage heterogeneous computing platforms. The data structure and algorithm optimizations necessary to increase thread level parallelism 1,000 times and achieve GPU, CPU, and network concurrency will also be discussed.


Additional Information
Computational Physics, Supercomputing
Government / National Labs
Intermediate technical
Talk
25 minutes
Session Schedule