Grand Challenge Program

Simulated strength of shaking from a magnitude 7.0 Hayward Fault earthquake showing peak ground velocity (colorbar) and seismograms (blue) at selected locations (triangles).

Simulated strength of shaking from a magnitude 7.0 Hayward Fault earthquake showing peak ground velocity (colorbar) and seismograms (blue) at selected locations (triangles). Rodgers/Sjogreen/Petersson

The Computing Grand Challenge Program allocates significant quantities of institutional computational resources to LLNL researchers to perform cutting edge research on the LC capability computers.

Computing Grand Challenge

Grand Challenge #16: Call for Proposals

The Computation Directorate has issued a call for proposals for projects requiring significant unclassified computing resource allocations (greater than 25,000 node-hours/year) on institutional capability systems for up to one year.

This call for proposals to use high performance computing (HPC) resources is open to all Laboratory scientists and engineers. Current grand challenge principal investigators must reapply to be considered for continued computer time. Projects can request allocations on Lassen, Quartz, Ruby or some combination of these systems.

Approximately 15 to 20 proposals will be selected to receive these significant allocations. To be considered, proposals must address a compelling, Grand-Challenge-scale, mission-related problem that pushes the envelope of scale and methodology in capability computing while promising unprecedented scientific and/or engineering discoveries. Collaborators (either academic or industrial) are encouraged. A successful project would be expected to receive high-level recognition from mission sponsors, the computing community, and the scientific community at large.

Note that the Computing Grand Challenge program does not award or cause to be awarded any funds – proposals selected for award through this call are expected to be fully funded, either institutionally or externally.

Proposals must be submitted via e-mail by Monday, September 13, 2021, to computing-grand-challenge@llnl.gov in PDF or MS Word format. This is a firm deadline, any proposals received after this date may not be accepted. All proposals must adhere to the proposal content and length guidelines, which have changed significantly relative to previous years. Acknowledgement of receipt of your proposal will be sent within two business days. If you do not receive this acknowledgement, please resend your proposal. Grand Challenge computing allocations awarded under this program will be announced December 06, 2021.

Seminar Series

Computing Grand Challenge Seminar Series

M&IC and the Deputy Director for Science and Technology are pleased to announced the revival of the Grand Challenge Seminar Series.

Grand Challenge #15 Recipient: First Principles Calculations of Atomic Nuclei and Their Interactions

Third in the series was presented by Kostas Kravvaris

Atomic nuclei are the heart of matter, the fuel of stars, and a unique doorway to explore some of the most fundamental laws of the universe. An overarching goal of nuclear physics is to arrive at a comprehensive understanding of atomic nuclei and their interactions, and to use this understanding to accurately predict nuclear properties that are difficult to measure, or simply inaccessible to experiment. This effort requires significant computing power and has benefited immensely from current hybrid high performance computing architectures. In this talk I will review recent Grand Challenge calculations of nuclear properties relevant to fundamental physics and applications, present ongoing efforts for quantifying their uncertainties, and discuss the application of quantum computers as the eventual next step in computing atomic nuclei and their interactions.

Watch it here (internal only): https://llnlfed.webex.com/llnlfed/lsr.php?RCID=32d63a00f09681c2848516721769ac90

Grand Challenge #14 Recipient: Origins of Matter

Second in the series was given by Pavlos Vranas

It has been well established that protons and neutrons are not elementary particles. Instead, they are composites made of constituent particles called quarks and gluons. Quarks and gluons are elementary, and their interactions are described by the theory of Quantum Chromodynamics (QCD). Calculations of QCD are important in revealing the structure and interactions of the proton, neutron and the other nuclear particles. Separately, it is also well established that an unknown substance permeates our Universe, and among other things holds the galaxies together with mass density of about five times larger than the mass density of our visible Universe. It has been termed Dark Matter. A Dark Matter theory developed at LLNL suggests that it is similar to QCD.  Both these theories can only be solved by numerical simulation using a discrete space-time, the Lattice, on the fastest supercomputers available. The Grand Challenge program and the LLNL supercomputers have advanced this frontier to a leading world effort. 

Watch it here: https://hpc.llnl.gov/sites/default/files/vranas-Grand-Challenge.mp4

Grand Challenge #13 Recipient: Earthquake Ground Motion Simulations on Sierra and Lassen with SW4.

Our first talk was given by Artie Rodgers

SW4 is a summation-by-parts finite difference code for simulating seismic motions in 3D Earth models. Porting of SW4 to Sierra and Lassen with RAJA under the Institutional Center of Excellence project enabled faster, larger and more finely resolved simulations. This talk will highlight some of the science that was made possible by these advances and executed in an FY2019 Computing Grand Challenge allocation. Further enhancements to SW4 are being made under the EQSIM DOE Exascale Computing Project.

Watch it here: https://hpc.llnl.gov/sites/default/files/rodgers-Grand-Challenge.mp4

Grand Challenge Projects/Allocations

For those with internal site access, all 15 years of Grand Challenge project titles and PI's are available on our Grand Challenge Project subpages.

Grand Challenge Utilization Data

For those with internal site access, many Grand Challenge project titles and allocations are in our Utilization Data area.