Revision as of 09:01, 1 September 2023 by Yfcui (talk | contribs) (Projects)
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NSF CSA Project

The HPGeoC applications are selected as an early science project for NSF Leadership Class Computing Facility (LCCF), funded through NSF's Characteristic Science Applications (CSA) program. The project is to support the development of state-of-the-art earthquake modeling capabilities towards exascale, by porting and co-designing software on future LCCF systems for machine-specific performance efficiencies. Horizon to be deployed end 2025 will be ten-fold or more time-to-solution performance improvement over Frontera, the current NSF leadership system. More info


NSF CSSI Project

Optimizing the communication between nodes is key to achieving good performance in scientific applications but a daunting task given the scale of execution. The HPGeoC team is collaborating with OSU, UTK and University of Oregon to co-design MVAPICH2 and TAU libraries with applications to improve time to solution in next generation HPC architectures through intelligent performance engineering - using emerging communication primitives. This research is funded by NSF Office of Advanced Cyberinfrastructure CSSI program. NSF CSSI info


CyberShake SGT Calculation

AWP-ODC is a highly scalable, parallel finite-difference application developed at SDSC and SDSU to simulate dynamic rupture and wave propagation that occurs during an earthquake. We have developed strain Green's tensor (SGT) creation and seismogram synthesis. The GPU-based SGT calculations are recently benchmarked with 32.6 Petaflop/s sustained performance on OLCF Frontier. This improved computational efficiency in the waveform modeling of CyberShake research will accelerate the process of creating a California state-wide physics-based seismic hazard map. More info


Simulating Earthquake Faults (FESD)

HPGeoC Researchers continue assisting researchers from several universities and the US Geological Survey (USGS) to develop detailed, large-scale computer simulations of earthquake faults. The initial focus is on the North American plate boundary and the San Andreas system of Northern and Southern California. More info

Completed Projects


SCEC M8 Simulation

M8 is the largest earthquake simulation ever conducted, a collaborative effort led by SCEC and requiring collaboration of more than 30 seismologists and computational scientists, supported by DOE INCITE allocation award. It presented tremendous computational and I/O challenges. The simulation was conducted on NCCS Jaguar, a ACM Gordon Bell finalist at Supercomputing'10. More info


Topology-aware Communication and Scheduling (HECURA-2)

Topology-aware MPI communication, mapping, and scheduling is a new research area. This is to take advantage of the topological path to communication optimization  (either point-to-point or collective). We are participating in a joint project between OSU, TACC and SDSC as a case study in how to implement new topology-aware MPI software at the application level.


Petascale Cyberfacility for Physics-based Seismic Hazard Analysis (PetaSHA-3)

The SCEC PetaSHA-3 project is sponsored by NSF to provide society with better predictions of earthquake hazards. This project will provide the high- performance computing required to achieve the objectives for earthquake source physics and ground motion prediction outlined in the SCEC3 (2007-2012) research plan. More info


Fault Tolerance Project

Current checkpoint/restart approach may introduce an unacceptable amount of overhead into some file systems. In collaboration with CSM, we have developed a fault tolerance framework in which the survival application processes will adapt itself to failures. In collaborating with ORNL, we are integrating ADIOS to scale checkpointing up on Lustre file system. More info

Finished Projects

  • PetaShake-1 Advanced computational platform designed to support high-resolution simulations of large earthquakes on initial NSF petascale machines, supported by NSF OCI and GEO grant
  • HECURA-1 In collaboration with OSU and TACC, we developed non-blocking one-sided and two-sided communication and computation/communication overlap to improve the parallel efficiency of SCEC seismic applications.
  • PetaSHA-1/2Cross-disciplinary, multi-institutional collaboration, coordinated by SCEC, each 2-year EAR/IF project with the same name to develop a cyberfacility with a common simulation framework for executing SHA computational pathways
  • TeraShake The TeraShake Simulations model the rupture of a 230 kilometer stretch of the San Andreas fault and the consequent 7.7 magnitude earthquake. TeraShake wasa multi-institution collaboration led by SCEC/CME.
  • Shakeout The Great California Shakeout is a statewide earthquake drill. It is held in October each year and serves as preparation for what to do before, during, and after an earthquake.
  • Parallelization of Regional Spectral Method (RSM)

High Performance Computing Allocations

Sources of Funding