Risposto
How can I speed up the eigen value and eigen vector computations for a non-sparse matrix?
check http://www.mathworks.com/matlabcentral/fileexchange/48-lobpcg-m
How can I speed up the eigen value and eigen vector computations for a non-sparse matrix?
check http://www.mathworks.com/matlabcentral/fileexchange/48-lobpcg-m
oltre 11 anni fa | 0
Risposto
How can the Cholesky decomposition step in eigs() be avoided without passing a matrix to eigs that is a Cholesky decomposition?
check http://www.mathworks.com/matlabcentral/fileexchange/48-lobpcg-m
How can the Cholesky decomposition step in eigs() be avoided without passing a matrix to eigs that is a Cholesky decomposition?
check http://www.mathworks.com/matlabcentral/fileexchange/48-lobpcg-m
oltre 11 anni fa | 0
Inviato
majorization check
checks if X is (weakly) majorized by Y, where X and Y must be numeric arrays.
oltre 11 anni fa | 466 download |
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pcg.m with 'null' and 'flex' options
Preconditioned Conjugate Gradients handles homogeneous equations and nonsymmetric preconditioning
oltre 11 anni fa | 3084 download |
Inviato
Best polynomial approximation in uniform norm
For a given function on an interval, the code calculates the min-max approximation by a polynomial.
oltre 11 anni fa | 828 download |
Inviato
ODE Tutorial Demo
Advanced examples of using the MATLAB Symbolic Math Toolbox for Ordinary Differential Equations
oltre 11 anni fa | 711 download |
Risposto
eigs with sparse matrices
try my http://www.mathworks.com/matlabcentral/fileexchange/48-lobpcg-m instead
eigs with sparse matrices
try my http://www.mathworks.com/matlabcentral/fileexchange/48-lobpcg-m instead
oltre 15 anni fa | 0
Risposto
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...
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...
oltre 15 anni fa | 0
Risposto
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...
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...
oltre 15 anni fa | 0
Risposto
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 ...
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 ...
oltre 15 anni fa | 0
Risposto
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...
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...
oltre 15 anni fa | 0
| accettato
Risposto
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 ...
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 ...
oltre 15 anni fa | 1
| accettato
Inviato
matlab2hypre and hypre2matlab
Read and write files with sparse matrices and vectors in hypre format
oltre 16 anni fa | 565 download |