The Trilinos Solver Framework

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Some pretty pictures fromSundance/TSFContours of vorticity in a lid-drivencavity, computed using the Kay-Loghinblock preconditioner on a Taylor-Hooddiscretization of Navier-StokesTemperature and sensitivity toPeclet number computed with aconvection-diffusion model onthe Sandia ThunderbirdComputational Science and Mathematics Research DepartmentSandiaNationalLaboratories
Formulation and solution of a sourceinversion problem•Simulation written by Omar Ghattas – 120 lines of Sundance code•Advection-diffusion of a contaminant released from a Gaussian source•Concentration is measured at 16 discrete sensor locations•Adjoint formulation of inversion problem for distributed source field•Ill-posed – smoothed with Tikhonov regularization•Non-symmetric block reordering of adjoint and state variablesComputational Science and Mathematics Research DepartmentSandiaNationalLaboratories
Page 1 and 2: The Trilinos Solver FrameworkKevin
Page 3 and 4: TSF• Interface for representation
Page 5: written with block and composedoper
Page 8 and 9: The overhead incurred by using TSF
Page 10: General code style; TSF is in C++;
Page 13 and 14: TSF provides an interface forconfig
Page 15 and 16: Overloaded operators are used to fo
Page 17 and 18: Preconditioning• TSFPreconditione
Page 19 and 20: Example: creating a Kay-Loghinpreco
Page 21 and 22: Where is TSF being used?; Sundance
Page 23: Acknowledgements; Helpful design cr

The Trilinos Solver Framework

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