User Jed Brown - Computational Science Stack Exchange

Jed Brown

Member for 10 years, 10 months
Last seen more than a month ago

13 Questions

Score Activity Newest Views

32 votes

4 answers

2k views

Why is local conservation important when solving PDEs?

asked Nov 30, 2011 at 6:16

28 votes

2 answers

14k views

Why is my iterative linear solver not converging?

asked Dec 23, 2011 at 1:52

23 votes

1 answer

14k views

Why is Newton's method not converging?

asked Nov 30, 2011 at 5:16

19 votes

2 answers

3k views

How to determine if a numerical solution to a PDE is converging to a continuum solution?

asked Dec 2, 2011 at 6:23

18 votes

4 answers

5k views

Portable multicore/NUMA memory allocation/initialization best practices

asked Apr 23, 2012 at 16:27

18 votes

4 answers

630 views

Which methods can ensure that physical quantities remain positive throughout a PDE simulation?

asked Nov 30, 2011 at 6:59

16 votes

2 answers

327 views

What are the best practices for algorithms and implementation of multi-physics simulations?

asked Dec 2, 2011 at 6:01

16 votes

1 answer

4k views

How can I estimate the condition number of a large sparse matrix using PETSc?

asked Nov 30, 2011 at 5:49

15 votes

3 answers

891 views

What is a scalable preconditioner for high-frequency Helmholtz?

asked Nov 30, 2011 at 6:09

14 votes

1 answer

448 views

What spatial discretizations work for incompressible flow with anisotropic boundary meshes?

asked Nov 30, 2011 at 6:22

14 votes

1 answer

611 views

Is there a multigrid algorithm that solves Neumann problems and has a convergence rate independent of the number of levels?

asked Nov 30, 2011 at 9:10

13 votes

1 answer

386 views

How to construct well-balanced finite volume and discontinuous Galerkin methods for hyperbolic PDEs with source terms?

asked Nov 30, 2011 at 9:03

11 votes

1 answer

254 views

Statistical models for local memory/compute, network latency, and bandwidth jitter in HPC

asked Dec 25, 2012 at 5:36