Submitted


ODE Tutorial Demo
Advanced examples of using the MATLAB Symbolic Math Toolbox for Ordinary Differential Equations

meer dan 6 jaar ago | 4 downloads |

Thumbnail

Submitted


Newton's method done right
Newton's method for solving systems of nonlinear equations, including nonsquare and inconsistent

meer dan 6 jaar ago | 2 downloads |

Thumbnail

Submitted


Laplacian in 1D, 2D, or 3D
Sparse (1-3)D Laplacian on a rectangular grid with exact eigenpairs.

meer dan 6 jaar ago | 9 downloads |

Thumbnail

Answered
eigs with sparse matrices
try my http://www.mathworks.com/matlabcentral/fileexchange/48-lobpcg-m instead

ongeveer 10 jaar ago | 0

Answered
Memory requirements of lobpcg: Matlab and hypre implementation differences
Have you actually tried the development version of SLEPc? The one that one gets by svn checkout http://www.grycap.upv.es/sle...

ongeveer 10 jaar ago | 0

Answered
Memory requirements of lobpcg: Matlab and hypre implementation differences
The development version of SLEPc incorporates BLOPEX now, see http://code.google.com/p/blopex/wiki/PETScInstallDevel so that yo...

ongeveer 10 jaar ago | 0

Answered
Memory requirements of lobpcg: Matlab and hypre implementation differences
Please try adding the following options to the ij driver: "-hmis -agg_nl 1 -interptype 6 -Pmx 4" These are proposed by a member ...

ongeveer 10 jaar ago | 0

Answered
Memory requirements of lobpcg: Matlab and hypre implementation differences
The lobpcg code in hypre is very similar to the MATLAB code, and uses about the same memory. The BoomerAMG preconditioner requir...

meer dan 10 jaar ago | 0

| accepted

Answered
lobpcg returning incorrect results for large sparse symmetric matrices
Very slow convergence is an expected normal behavior of lobpcg for such a problem, without preconditioning. Unfortunately, I am ...

meer dan 10 jaar ago | 1

| accepted

Submitted


matlab2hypre and hypre2matlab
Read and write files with sparse matrices and vectors in hypre format

meer dan 11 jaar ago | 2 downloads |