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Results for “Parallelism”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Analysis of scalable data-privatization threading algorithms for hybrid MPI/OpenMP parallelization of molecular dynamics
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Parallel Priority-Flood depression filling for trillion cell digital elevation models on desktops or clusters
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Parallel Discovery Strategies Provide a Basis for Riboswitch Ligand Design
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A new parallel algorithm for constructing Voronoi tessellations from distributed input data
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Parallelization of the inverse fast multipole method with an application to boundary element method
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Fast spherical centroidal Voronoi mesh generation: A Lloyd-preconditioned LBFGS method in parallel
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Modeling of tokamak divertor plasma for weakly collisional parallel electron transport
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Massively parallel simulations of hemodynamics in the primary large arteries of the human vasculature
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A characterization of soft-error sensitivity in data-parallel and model-parallel distributed deep learning
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The impact of collisionality, FLR, and parallel closure effects on instabilities in the tokamak pedestal: Numerical studies with the NIMROD code
The extended-MHD NIMROD code [C. R. Sovinec and J. R. King, J. Comput. Phys. 229, 5803 (2010)] is verified against the ideal-MHD ELITE code [H. R. Wilson et al., Phys. Plasmas 9, 1277 (2002)] on a diverted tokamak discharge. When the NIMROD model complexity is increased incrementally, resistive and first-order finite-Larmour radius effects are destabilizing and stabilizing, respectively. Lastly, the full result is compared to local analytic calculations which are found to overpredict both the resistive destabilization and drift stabilization in comparison to the NIMROD computations.
Nyx: A MASSIVELY PARALLEL AMR CODE FOR COMPUTATIONAL COSMOLOGY
We present a new N-body and gas dynamics code, called Nyx, for large-scale cosmological simulations. Nyx follows the temporal evolution of a system of discrete dark matter particles gravitationally coupled to an inviscid ideal fluid in an expanding universe. The gas is advanced in an Eulerian framework with block-structured adaptive mesh refinement; a particle-mesh scheme using the same grid hierarchy is used to solve for self-gravity and advance the particles. Computational results demonstrating the validation of Nyx on standard cosmological test problems, and the scaling behavior of Nyx to 50,000 cores, are presented.
Excited-state one-neutron halo nuclei within a parallel momentum distribution analysis
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Sparse Matrix Partitioning for Parallel Eigenanalysis of Large Static and Dynamic Graphs.
Abstract not provided.