26 citations · 27 across the 2 of their papers we have counts for
5 papers
Space-time block preconditioning for incompressible flow
Federico Danieli, Ben S. Southworth, Andrew J. Wathen
Parallel-in-time methods have become increasingly popular in the simulation of time-dependent numerical PDEs, allowing for the efficient use of additional MPI processes when spatia…
Sparse inversion for derivative of log determinant
Shengxin Zhu, Andrew J Wathen
Algorithms for Gaussian process, marginal likelihood methods or restricted maximum likelihood methods often require derivatives of log determinant terms. These log determinants are…
A constrained pressure-temperature residual (CPTR) method for non-isothermal multiphase flow in porous media
Thomas Roy, Tom B Jönsthövel, Christopher Lemon +1
For both isothermal and thermal petroleum reservoir simulation, the Constrained Pressure Residual (CPR) method is the industry-standard preconditioner. This method is a two-stage p…
A block preconditioner for non-isothermal flow in porous media
Thomas Roy, Tom B. Jönsthövel, Christopher Lemon +1
In petroleum reservoir simulation, the industry standard preconditioner, the constrained pressure residual method (CPR), is a two-stage process which involves solving a restricted…
Essential formulae for restricted maximum likelihood and its derivatives associated with the linear mixed models
Shengxin Zhu, Andrew J Wathen
The restricted maximum likelihood method enhances popularity of maximum likelihood methods for variance component analysis on large scale unbalanced data. As the high throughput bi…