Submitted


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

6 years ago | 4 downloads |

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Submitted


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

6 years ago | 1 download |

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Submitted


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

6 years ago | 9 downloads |

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

10 years 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...

10 years 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...

10 years 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 ...

10 years 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...

10 years 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 ...

10 years ago | 1

| accepted

Submitted


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

11 years ago | 2 downloads |