Uintah: A Massively Parallel Problem Solving Environment
HPDC '00 Proceedings of the 9th IEEE International Symposium on High Performance Distributed Computing
An Eulerian-Lagrangian approach for simulating explosions of energetic devices
Computers and Structures
Parallel space-filling curve generation through sorting: Research Articles
Concurrency and Computation: Practice & Experience
Scheduling FFT computation on SMP and multicore systems
Proceedings of the 21st annual international conference on Supercomputing
A case study for petascale applications in astrophysics: simulating gamma-ray bursts
Proceedings of the 15th ACM Mardi Gras conference: From lightweight mash-ups to lambda grids: Understanding the spectrum of distributed computing requirements, applications, tools, infrastructures, interoperability, and the incremental adoption of key capabilities
Non-data-communication Overheads in MPI: Analysis on Blue Gene/P
Proceedings of the 15th European PVM/MPI Users' Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface
A component-based architecture for parallel multi-physics PDE simulation
Future Generation Computer Systems
The cactus framework and toolkit: design and applications
VECPAR'02 Proceedings of the 5th international conference on High performance computing for computational science
CLOMP: accurately characterizing OpenMP application overheads
IWOMP'08 Proceedings of the 4th international conference on OpenMP in a new era of parallelism
Uintah: a scalable framework for hazard analysis
Proceedings of the 2010 TeraGrid Conference
p4est: Scalable Algorithms for Parallel Adaptive Mesh Refinement on Forests of Octrees
SIAM Journal on Scientific Computing
DAG-Based software frameworks for PDEs
Euro-Par'11 Proceedings of the 2011 international conference on Parallel Processing
Radiation modeling using the Uintah heterogeneous CPU/GPU runtime system
Proceedings of the 1st Conference of the Extreme Science and Engineering Discovery Environment: Bridging from the eXtreme to the campus and beyond
Multiscale modeling of high explosives for transportation accidents
Proceedings of the 1st Conference of the Extreme Science and Engineering Discovery Environment: Bridging from the eXtreme to the campus and beyond
High throughput software for direct numerical simulations of compressible two-phase flows
SC '12 Proceedings of the International Conference on High Performance Computing, Networking, Storage and Analysis
Past, present and future scalability of the Uintah software
Proceedings of the Extreme Scaling Workshop
Preliminary experiences with the uintah framework on Intel Xeon Phi and stampede
Proceedings of the Conference on Extreme Science and Engineering Discovery Environment: Gateway to Discovery
The influence of an applied heat flux on the violence of reaction of an explosive device
Proceedings of the Conference on Extreme Science and Engineering Discovery Environment: Gateway to Discovery
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The Uintah Software framework was developed to provide an environment for solving fluid-structure interaction problems on structured adaptive grids on large-scale, long-running, data-intensive problems. Uintah uses a combination of fluid-flow solvers and particle-based methods for solids together with a novel asynchronous task-based approach with fully automated load balancing. Uintah's memory use associated with ghost cells and global meta-data has become a barrier to scalability beyond O(100K) cores. A hybrid memory approach that addresses this issue is described and evaluated. The new approach based on a combination of Pthreads and MPI is shown to greatly reduce memory usage as predicted by a simple theoretical model, with comparable CPU performance.