Engineering topics
Debusschere, Bert
Publications and source records attributed to Debusschere, Bert.
Lessons From Uncertainty Propagation Using Tabular Multiphase Equations of State.
Abstract not provided.
Representation and Propagation of Uncertainty in Equations of State for Shock Hydrodynamics.
Abstract not provided.
Rexsss Performance Analysis: Domain Decomposition Algorithm Implementations for Resilient Numerical Partial Differential Equation Solvers
The future of extreme-scale computing is expected to magnify the influence of soft faults as a source of inaccuracy or failure in solutions obtained from distributed parallel computations. The development of resilient computational tools represents an essential recourse for understanding the best methods for absorbing the impacts of soft faults without sacrificing solution accuracy. The Rexsss (Resilient Extreme Scale Scientific Simulations) project pursues the development of fault resilient algorithms for solving partial differential equations (PDEs) on distributed systems. Performance analyses of current algorithm implementations assist in the identification of runtime inefficiencies.
ForQint
ForQint is a Fortran software library to adaptively integrate multivariable functions versus well known probability distributions (e.g. normal, lognormal, etc.) using quadrature rules. Such integration is known to be more efficient and accurate especially when the function evaluation is expensive. The library also FQint enables the creation of both full and sparse anisotropic multi-dimensional quadrature rules. These latter encompass different such as Gauss-Hermite, Gauss-Legendre, etc. The functions Maher Salloum, Bert Debusschere, Kenny Chowdhary and subroutines rely on the C++ Stokhos package of Trilinos (trilinos.sandia.gov) where the appropriate classes were wrapped into Fortran.
Sandia Software Enabling Extreme-Scale Uncertainty Quantification.
Abstract not provided.
Rexsss Performance Analysis: Domain Decomposition For PDEs.
Abstract not provided.
An Overview of Select UQ Algorithms and their Utility in Applications.
Abstract not provided.
Effective Representation and Propagation of Uncertainty Through Tabular Multiphase Equation-of-State Models.
Abstract not provided.
Towards a Probabilistic Approach to Extreme-Scale Simulations under Uncertainty and System Faults.
Abstract not provided.
Bayesian discontinuity detection and surrogate construction for complex computer models.
Abstract not provided.
Sandia's exascale computing effort expected to curtail effects of system faults.
Abstract not provided.
Probabilistic Approaches for Fault-Tolerance and Scalability in Extreme-Scale Computing.
Abstract not provided.
Uncertainty Quantification Methods for Model Calibration Validation and Risk Analysis.
Abstract not provided.
Inference of Chemical Model Parameters given Partial Information.
Abstract not provided.
Global Sensitivity Analysis and Parameter Calibration for an Ecosystem Carbon Model.
Abstract not provided.