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A Block Preconditioner for an Exact Penalty Formulation for Stationary MHD
(2014-02-04)
The magnetohydrodynamics (MHD) equations are used to model the flow of electrically conducting fluids in such applications as liquid metals and plasmas. This system of non-self adjoint, nonlinear PDEs couples the Navier-Stokes ...
Preconditioning Techniques for Reduced Basis Methods for Parameterized Partial Differential Equations
(2014-05-27)
The reduced basis methodology is an efficient approach to solve
parameterized discrete partial differential equations when the solution
is needed at many parameter values. An offline step approximates the
solution space ...
Recursive computation of spherical harmonic rotation coefficients of large degree
(2014-03-28)
Computation of the spherical harmonic rotation coefficients or elements
of Wigner's d-matrix is important in a number of quantum mechanics and
mathematical physics applications. Particularly, this is important for
the ...
Anomaly Detection for Symbolic Representations
(2014-03-25)
A fully autonomous agent recognizes new problems, explains what causes
such problems, and generates its own goals to solve these problems. Our
approach to this goal-driven model of autonomy uses a methodology called
the ...
A Stochastic Approach to Uncertainty in the Equations of MHD Kinematics
(2014-07-10)
The magnetohydodynamic (MHD) kinematics model describes the
electromagnetic behavior of an electrically conducting fluid when its
hydrodynamic properties are assumed to be known. In particular, the MHD
kinematics equations ...
Studying Directory Access Patterns via Reuse Distance Analysis and Evaluating Their Impact on Multi-Level Directory Caches
(2014-01-13)
The trend for multicore CPUs is towards increasing core count. One of
the key limiters to scaling will be the on-chip directory cache. Our
work investigates moving portions of the directory away from the cores,
perhaps ...