Beantwortet
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
mehr als 10 Jahre vor | 0
Gesendet
majorization check
checks if X is (weakly) majorized by Y, where X and Y must be numeric arrays.
mehr als 10 Jahre vor | 2 Downloads |
Gesendet
pcg.m with 'null' and 'flex' options
Preconditioned Conjugate Gradients handles homogeneous equations and nonsymmetric preconditioning
mehr als 10 Jahre vor | 1 Download |
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Best polynomial approximation in uniform norm
For a given function on an interval, the code calculates the min-max approximation by a polynomial.
mehr als 10 Jahre vor | 3 Downloads |
Gesendet
ODE Tutorial Demo
Advanced examples of using the MATLAB Symbolic Math Toolbox for Ordinary Differential Equations
mehr als 10 Jahre vor | 1 Download |
Beantwortet
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
mehr als 14 Jahre vor | 0
Beantwortet
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...
mehr als 14 Jahre vor | 0
Beantwortet
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...
mehr als 14 Jahre vor | 0
Beantwortet
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 ...
mehr als 14 Jahre vor | 0
Beantwortet
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...
mehr als 14 Jahre vor | 0
| akzeptiert
Beantwortet
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 ...
mehr als 14 Jahre vor | 1
| akzeptiert
Gesendet
matlab2hypre and hypre2matlab
Read and write files with sparse matrices and vectors in hypre format
mehr als 15 Jahre vor | 2 Downloads |