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graph showing performance versus arithmetic intensity
Legacy

ExReDi

The Extreme Resilient Discretization project (ExReDi) was established to address these challenges for algorithms common for fluid and plasma simulations.

In a highly cyclic community (S3), vertices in each subgroup mostly connect directionally to vertices in the “next” adjacent subgroup. The new factorizations enable discovery of such phenomena.

Math for Data Mining

Newly developed mathematical techniques reveal important tools for data mining analysis.

simulation in the shape of a red cube
Legacy

Phase-Field Modeling

Based on a discretization and time-stepping algorithm, these equations include a local order parameter, a quaternion representation of local orientation, and species composition.

NEWS
Ulrike Yang photo

LLNL’s Yang honored among 2024 SIAM Class of Fellows

The Society for Industrial and Applied Mathematics (SIAM) announced the selection of Lawrence Livermore National Laboratory (LLNL) computational mathematician Ulrike Meier Yang as one of the 2024 Class of SIAM Fellows, the highest honor the organization bestows on its members.

The Milky Way and night sky above Rubin Observatory's Auxiliary Telescope. The auxiliary telescope is at the lower left, and the night sky is sprinkled with stars. The denser area of the Milky Way extends upward on the right, bulging wider toward the top. Dark tendrils of dust clouds weave through the bulge.

Machine learning tool fills in the blanks for satellite light curves

MuyGPs helps complete and forecast the brightness data of objects viewed by Earth-based telescopes.

Cerebras components installed in one of the Lassen racks

New research in time integration methods recognized at IEEE conference

Can novel mathematical algorithms help scientific simulations leverage hardware designed for machine learning? A team from LLNL’s Center for Applied Scientific Computing aimed to find out.